LOOMIS SAYLES & CO L P
13F-HR, 1999-05-11
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<PAGE>
 
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    Form 13F
                               Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: March 31, 1999

Check here if Amendment __; Amendment Number: __
This Amendment (Check only one.):   __is a restatement.
                                    __adds new holdings entries.

Institutional Investment Manager Filing this Report:
Name:      Loomis Sayles & Company, L.P.
Address:   One Financial Center
           Boston MA 02110-2660

Form 13F File Number: 28-398

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name:    Arnar Thorsteinsson
Title:   Trading Compliance Manager
Phone:   (800) 343-2029, ext. 1195
Signature, Place, and Date of Signing:

Arnar Thorsteinsson                 Boston MA                 May 11, 1999
- -------------------                 ---------                 ------------
[Signature]                         [City, State]             [Date]
Report Type (Check only one.):

[X]  13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
     are reported in this report.)

[ ]  13F NOTICE. (Check here if no holdings reported are in this report, and all
     holdings are reported by other reporting manager(s).)

[]  13F COMBINATION REPORT. (Check here if a portion of the holdings for this
     reporting manager are reported in this report and a portion are reported by
     other reporting manager(s).)

List of Other Managers Reporting for this Manager:
         Form 13F          File                       Number Name
         28-               ____________              __________________________
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                                                                                                           FILE NO.  28-398         

 PG   1        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 DAIMLERCHRYSLER AG             COMMON   D1668R123       8,328            97,049   X   123             48,615                 48,434

 EURO DISNEY SCA                COMMON   F26387104           1             1,000   X   123                                     1,000

 ACE LTD                        COMMON   G0070K103     161,261         5,170,603   X   123          3,073,290      3,400   2,093,913

 ANNUITY & LIFE RE (HLDGS)      COMMON   G03910109       5,350           233,900   X   123            179,300                 54,600

 LORAL SPACE & COMMUNICATIONS   COMMON   G56462107      47,141         3,265,036   X   123          2,270,486     77,700     916,850

 SANTA FE INTERNATIONAL CORP    COMMON   G7805C108      16,186           866,100   X   123            710,500                155,600

 TOMMY HILFIGGER CORP           COMMON   G8915Z102       5,021            72,900   X   123             49,300                 23,600

 XL CAPITAL LTD - A             COMMON   G98255105         134             2,200   X   123              2,200                       

 CHECK POINT SOFTWARE TECH      COMMON   M22465104       3,152            73,300   X   123             54,400                 18,900

 GILAT SATELLITE NETWORKS LTD   COMMON   M51474100      14,622           243,700   X   123            199,700                 44,000

 J RAY MCDERMOTT S A            COMMON   P64658100          12               400   X   123                400                       

 ROYAL CARIBBEAN CRUISES LTD    COMMON   V7780T103         234             6,000   X   123                                     6,000

 TEEKAY SHIPPING CORP           COMMON   V89564104          50             3,000   X   123              3,000                       

 FLEXTRONICS INTL LTD           COMMON   Y2573F102      19,349           379,400   X   123            301,600                 77,800

 AAR CORP                       COMMON   000361105       2,763           155,100   X   123            134,600                 20,500

 ABR INFORMATION SERVICES       COMMON   00077R108          35             2,000   X   123              2,000                       

 ADC TELECOMMUNICATIONS INC     COMMON   000886101          24               500   X   123                                       500

 AFLAC INC                      COMMON   001055102         198             3,628   X   123              1,600                  2,028

 AGCO CORP                      COMMON   001084102          42             6,400   X   123              6,300                    100

 AES CORPORATION                COMMON   00130H105      11,260           302,271   X   123            214,625     13,600      74,046

 AES CORP -WTS                   WTS     00130H113           1                22   X   123                                        22

 AIM BLUE CHIP FD CL A          COMMON   001413871          63             1,437   X   123                                     1,437

 AMR CORP/DEL                   COMMON   001765106      49,140           839,100   X   123            592,600     24,000     222,500

 A T & T CORP                   COMMON   001957109     256,474         3,213,442   X   123          1,979,892     23,000   1,210,550

 AT&T -LIBERTY MEDIA GRP        COMMON   001957208         790            15,025   X   123                                    15,025

 APP FINANCE VII CVT 144A       CV BND   00202PAA8      93,809         1,573,321   X   123          1,276,223    171,013     126,085

 AVX CORP                       COMMON   002444107       6,253           390,800   X   123            316,700                 74,100

 ABACUS DIRECT CORP             COMMON   002553105      21,566           263,000   X   123            213,100                 49,900

 ABBOTT LABS                    COMMON   002824100     137,864         2,944,992   X   123          1,697,918     10,800   1,236,274

 ABERCROMBIE & FITCH CO         COMMON   002896207         110             1,196   X   123              1,196                       

 ACETO CORP                     COMMON   004446100          44             3,745   X   123                                     3,745

 ACNIELSON CORP                 COMMON   004833109      16,770           618,232   X   123            498,832                119,400

 ACTEL CORP                     COMMON   004934105       8,715           530,200   X   123            436,300                 93,900

 ACXIOM CORP                    COMMON   005125109          21               800   X   123                                       800

 ADAC LABORATORIES              COMMON   005313200       8,565           628,600   X   123            518,500                110,100

 ADAPTEC INC CVT SUB NTS        CV BND   00651FAC2       3,936            47,423   X   123             30,003     14,517       2,903

 ADVANTICA RESTAURANT GROUP     COMMON   00758B109      46,474         9,294,823   X   1234         8,219,884    764,762     310,177

 AEROFLEX INC                   COMMON   007768104       1,942           136,300   X   123            100,700                 35,600

 AEGON NV AMERICAN REG SHR      COMMON   007924103          36               397   X   123                292                    105

 AETNA INC                      COMMON   008117103      62,040           747,473   X   123            432,448                315,025

 AETNA REAL LIFE ASSOC LP       COMMON   008171100          12             1,136   X   123                                     1,136

 AQUA ALLIANCE CVT SUB DEBS     CV BND   009058AA6     136,848         1,609,982   X   123456       1,422,154    139,930      47,898

 AIR PRODS & CHEM               COMMON   009158106       6,968           203,434   X   123            112,568      6,000      84,866

 AIRTOUCH COMMUNICATIONS DEL    COMMON   00949T100       1,065            11,024   X   123             10,724                    300

 ALBEMARLE CORP                 COMMON   012653101         838            40,000   X   123                                    40,000

 ALBERTSONS INC                 COMMON   013104104       1,268            23,300   X   123              2,300                 21,000

 ALCOA INC                      COMMON   013817101         857            20,800   X   123             14,800                  6,000

 ALCATEL ALSTHOM -SPONS ADR     COMMON   013904305         338            14,829   X   123              6,272                  8,557

 ALIGN-RITE INTL                COMMON   016251100           3               300   X   123                300                       

 ALKERMES INC                   COMMON   01642T108       8,238           302,300   X   123            247,300                 55,000

 ALLEGHENY TELEDYNE INC         COMMON   017415100       1,456            76,900   X   123             69,100                  7,800

 ALLERGAN INC                   COMMON   018490102          53               600   X   123                                       600

 ALLERGAN SPECIALTY THERAPEUTIC COMMON   018494104                            30   X   123                                        30

 ALLIANT TECHSYSTEMS INC        COMMON   018804104      10,752           138,400   X   123            113,900                 24,500

 ALLIED IRISH BANKS SPON ADR    COMMON   019228402          11               105   X   123                                       105

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
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<TABLE>
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                                                                                                           FILE NO.  28-398         

 PG   2        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 ALLIED SIGNAL INC              COMMON   019512102      49,429         1,004,909   X   123            816,270     32,300     156,339

 ALLMERICA FINANCIAL CORP       COMMON   019754100       5,894           107,038   X   123             69,000                 38,038

 ALLSTATE CORP                  COMMON   020002101     113,112         3,051,874   X   123          1,877,830      2,600   1,171,444

 ALLTEL CORP                    COMMON   020039103         364             5,837   X   123                                     5,837

 ALLTRISTA CORP                 COMMON   020040101          11               547   X   123                547                       

 ALPHA INDS INC                 COMMON   020753109       9,472           515,500   X   123            424,100                 91,400

 ALTERA CORP                    COMMON   021441100         298             5,000   X   123                                     5,000

 ALTERNATIVE LIVING SERVICES    COMMON   02145K107       9,154           457,700   X   123            363,700                 94,000

 AMERICA ONLINE INC             COMMON   02364J104      88,696           603,377   X   123            268,727                334,650

 AMERICAN ELEC PWR              COMMON   025537101          54             1,373   X   123              1,373                       

 AMERICAN EXPRESS               COMMON   025816109      69,347           588,932   X   123            367,750        600     220,582

 AMERICAN GEN CORP              COMMON   026351106       1,863            26,425   X   123             26,425                       

 AMERICAN GREETINGS             COMMON   026375105      11,610           457,540   X   123            293,240                164,300

 AMERICAN HOME PRODUCTS         COMMON   026609107     181,151         2,776,267   X   123          1,604,615     19,500   1,152,152

 AMERICAN INSD MTG INV-SER 85   COMMON   02686E106                             6   X   123                                         6

 AMERICAN INTL GRP              COMMON   026874107     124,154         1,029,257   X   123            557,247      3,300     468,710

 AMERICAN MGMT SYSTEM           COMMON   027352103       6,342           185,850   X   123            101,150                 84,700

 AMERICAN POWER CONVERSION      COMMON   029066107         135             5,000   X   123                                     5,000

 AMERICAN STATES WATER CO       COMMON   029899101       6,504           268,200   X   123            222,300                 45,900

 AMERIKING INC                  COMMON   03071G102          79             1,750   X   123              1,750                       

 AMERUS LIFE HOLDINGS -A        COMMON   030732101       7,080           295,000   X   123            240,900                 54,100

 AMES DEPT STORES INC           COMMON   030789507       5,112           137,700   X   123            113,500                 24,200

 AMERITECH CORP                 COMMON   030954101     316,882         5,499,042   X   123          3,480,236     38,600   1,980,206

 AMETEK INC                     COMMON   031100100           7               400   X   123                                       400

 AMGEN INC                      COMMON   031162100      39,946           533,500   X   123            214,800                318,700

 AMP INC                        COMMON   031897101       1,910            35,701   X   123             21,938                 13,763

 AMRESCO INC                    COMMON   031909104       6,315           821,400   X   123            671,000                150,400

 AMSOUTH BANCORP                COMMON   032165102       3,072            67,517   X   123             44,250                 23,267

 ANADARKO PETE CORP             COMMON   032511107      62,507         1,655,820   X   123            912,820                743,000

 ANALOG DEVICES                 COMMON   032654105         378            12,700   X   123              1,000                 11,700

 ANDERSONS INC                  COMMON   034164103       2,819           232,500   X   123            171,500                 61,000

 ANESTA CORP                    COMMON   034603100       6,649           294,700   X   123            242,000                 52,700

 ANHEUSER BUSCH                 COMMON   035229103     109,314         1,435,983   X   123            950,675      1,800     483,508

 ANICOM INC                     COMMON   035250109          35             4,000   X   123                                     4,000

 ANNTAYLOR STORES CORP          COMMON   036115103      17,706           400,700   X   123            325,900                 74,800

 ANTEC CORP                     COMMON   03664P105      10,950           509,300   X   123            415,600                 93,700

 ATHRACITE CAPITAL INC          COMMON   037023108       6,786           904,800   X   123            742,200                162,600

 APACHE CORP                    COMMON   037411105         521            20,000   X   123              1,000                 19,000

 APARTMENT INVESTMENT & MGMT    COMMON   03748R101           7               200   X   123                                       200

 APPLE COMPUTER CVT SUB DEBS    CV BND   037833AE0     230,660         1,894,538   X   123          1,478,513    388,633      27,392

 APPLE COMPUTER                 COMMON   037833100       4,230           117,705   X   123             72,600                 45,105

 APPLIED MICRO CIRCUITS CORP    COMMON   03822W109      15,426           360,850   X   123            295,100                 65,750

 APPLIED MATERIALS              COMMON   038222105      30,373           492,366   X   123            283,966      4,700     203,700

 APPLIED POWER INC              COMMON   038225108       4,852           178,040   X   123            120,600                 57,440

 ARCH CHEMICALS INC             COMMON   03937R102          33             1,975   X   123              1,875                    100

 ARCHSTONE COMMUNITIES TRUST    COMMON   039581103         604            30,000   X   123             30,000                       

 ARKANSAS BEST CVT PFD 5.75% A  CV PFD   040790206      63,270         1,931,921   X   12345        1,485,897    345,440     100,584

 ARMSTRONG WORLD                COMMON   042476101      38,757           857,681   X   123            498,455                359,226

 ARROW ELECTRONICS INC          COMMON   042735100          50             3,300   X   123              2,700                    600

 ARTESYN TECHNOLOGIES INC       COMMON   043127109       6,437           520,200   X   123            416,500                103,700

 ASCEND COMMUNICATIONS INC      COMMON   043491109       1,675            20,010   X   123             11,310                  8,700

 ASSOCIATED BANC CORP           COMMON   045487105       3,755           117,576   X   123            106,925                 10,651

 ASSOCIATED ESTATES REALTY CP   COMMON   045604105       7,814           748,600   X   123            503,700     65,500     179,400

 AT HOME CORP -A                COMMON   045919107          63               400   X   123                400                       

 ASSOCIATES FIRST CAPITAL       COMMON   046008108      69,316         1,540,365   X   123            916,862                623,503

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
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<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG   3        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 ASTORIA FINANCIAL CORP         COMMON   046265104         483             9,650   X   123              7,050                  2,600

 ATLANTIC COAST AIRLINES        COMMON   048396105       7,343           261,100   X   123            213,800                 47,300

 ATLANTIC RICHFIELD             COMMON   048825103       3,351            45,822   X   123             28,650      3,500      13,672

 ATMEL SA 144A CVT COMP GUAR    CV BND   04951PAA3       9,493           112,671   X   123             98,587     14,084            

 ATMEL CORP                     COMMON   049513104       7,835           515,900   X   123            425,900                 90,000

 ATWOOD OCEANICS INC            COMMON   050095108       8,118           270,600   X   123            219,500                 51,100

 AUTOLIV INC                    COMMON   052800109         600            15,976   X   123              6,643                  9,333

 AUTOMATIC DATA PROC            COMMON   053015103       8,014           193,684   X   123             82,976                110,708

 AUTOZONE INC                   COMMON   053332102       5,094           167,700   X   123            111,800                 55,900

 AVERY DENNISON CORP            COMMON   053611109          58             1,000   X   123                                     1,000

 AVON PRODS                     COMMON   054303102      10,048           213,500   X   123            181,900     11,400      20,200

 AVONDALE FINANCIAL CORP        COMMON   054341102         108             8,100   X   123              8,100                       

 BEC ENERGY                     COMMON   05538M101       7,765           211,300   X   123            173,600                 37,700

 THE BISYS GROUP INC            COMMON   055472104          84             1,500   X   123              1,500                       

 BJ'S WHOLESALE CLUB INC        COMMON   05548J106       6,691           254,300   X   123            209,400                 44,900

 BJ SERVICES CO                 COMMON   055482103      64,404         2,770,050   X   123          1,737,100      1,500   1,031,450

 B P AMOCO PLC -SP ADR          COMMON   055622104     171,400         1,697,031   X   123          1,126,449      7,634     562,948

 BMC SOFTWARE INC               COMMON   055921100          33               900   X   123                700                    200

 BAKER HUGHES INC CVT NTS       CV BND   057224AH0     303,751         4,370,523   X   123          4,169,936     30,688     169,899

 BAKER HUGHES INC               COMMON   057224107      28,585         1,175,700   X   123            811,900                363,800

 BAKER (J) INC                  COMMON   057232100         885           236,100   X   123            171,600                 64,500

 BALL CORPORATION               COMMON   058498106         258             5,500   X   123              5,500                       

 BALTIMORE G & E                COMMON   059165100         289            11,380   X   123                         4,500       6,880

 BANCO SANTANDER PUERTO RICO    COMMON   059646109       2,270           113,500   X   123             84,500                 29,000

 BANK OF NEW YORK               COMMON   064057102      33,503           932,256   X   123            841,636      8,000      82,620

 BANK ONE CORP                  COMMON   06423A103      92,464         1,679,237   X   123          1,006,575      1,800     670,862

 BANK UNITED CORP               COMMON   065412108      11,388           278,600   X   123            227,200                 51,400

 BANKAMERICA CORP               COMMON   06605F102      39,722           562,434   X   123            261,482      3,983     296,969

 BANKBOSTON CORP                COMMON   06605R106      59,172         1,366,160   X   123            951,200     23,300     391,660

 BANTA CORP                     COMMON   066821109         629            33,100   X   123             20,850                 12,250

 BARD C R                       COMMON   067383109         267             5,300   X   123              1,600                  3,700

 BAXTER INTL INC                COMMON   071813109         249             3,780   X   123                                     3,780

 BEAR STEARNS COMPANIES         COMMON   073902108      51,978         1,163,131   X   123            702,087                461,044

 BECKMAN COULTER INC            COMMON   075811109      13,040           294,700   X   123            242,300                 52,400

 BELL & HOWELL COMPANY          COMMON   077852101       7,514           256,320   X   123            205,900                 50,420

 BELL ATLANTIC CORP             COMMON   077853109      35,551           687,808   X   123            528,813     14,844     144,151

 BELL ATLANTIC FINL EURO CVT    CV BND   0778599A6     188,718         1,780,355   X   123          1,655,730                124,625

 BELL ATLANTIC FINL EURO CVT    CV BND   0778599B4   1,562,167        14,233,869   X   123         13,659,958                573,911

 BELL SPORTS CORP CVT SUB DEBS  CV BND   077903AA0      13,813           170,533   X   1234           143,938     22,842       3,753

 BELLSOUTH CORP                 COMMON   079860102     243,301         6,072,961   X   123          3,726,923     38,140   2,307,898

 BEN & JERRYS HOMEMADE CL A     COMMON   081465106           3               100   X   123                                       100

 BERKSHIRE HATHAWAY INC CL A    COMMON   084670108       7,283               102   X   123                                       102

 BERKSHIRE HATHAWAY INC CL B    COMMON   084670207       4,025             1,712   X   123                497                  1,215

 BERKSHIRE REALTY COMPANY       COMMON   084710102      10,040           897,400   X   123            654,000     47,400     196,000

 BESTFOODS                      COMMON   08658U101       1,627            34,622   X   123              9,068      6,400      19,154

 BETHLEHEM STEEL CORP           COMMON   087509105       6,249           757,400   X   123            603,600                153,800

 BETHLEHEM STEEL CVT PFD B 7%   CV PFD   087509501     169,085         4,420,529   X   123          3,620,406    639,022     161,101

 BEYOND.COM CORP                COMMON   08860E101          13               500   X   123                500                       

 BIOGEN INC                     COMMON   090597105      58,716           513,645   X   123            324,020        400     189,225

 BIOMATRIX INC                  COMMON   09060P102      16,251           208,350   X   123            170,250                 38,100

 BIOMET INC                     COMMON   090613100      39,304           937,200   X   123            614,600        800     321,800

 BIOVAIL CORP INTL              COMMON   09067K106      13,390           347,790   X   123            285,925                 61,865

 BLACK & DECKER CORP            COMMON   091797100     162,436         2,930,057   X   123          1,847,048     29,000   1,054,009

 BLACK HILLS CORP               COMMON   092113109          42             1,950   X   123                                     1,950

 H & R BLOCK INC                COMMON   093671105          34               725   X   123                725                       

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

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                                                                                                           FILE NO.  28-398         

 PG   4        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 BOEING CO                      COMMON   097023105      10,011           294,448   X   123            217,100     12,900      64,448

 BOISE CASCADE CORP             COMMON   097383103         313             9,700   X   123              4,700                  5,000

 BONE CARE INTL                 COMMON   098072101           3               300   X   123                                       300

 BORDERS GROUP INC              COMMON   099709107       3,175           225,750   X   123            147,050                 78,700

 BORG WARNER AUTOMOTIVE INC     COMMON   099724106          48             1,000   X   123              1,000                       

 BORG-WARNER SECURITY CORP      COMMON   099733107       9,728           580,800   X   123            483,000                 97,800

 BOSTON CHICKEN SUB CONV DEBS   CV BND   100578AA1       9,187         2,296,702   X   1235         1,923,684    232,220     140,798

 BOSTON CHICKEN SUB DEB CONV    CV BND   100578AB9         390           390,333   X   12356          328,477     44,792      17,064

 BOSTON CHICKEN CVT SUB DEBS    CV BND   100578AC7       2,204           550,880   X   1234           511,555     37,453       1,872

 BOSTON COMMUNICATIONS GRP      COMMON   100582105       4,881           500,600   X   123            413,400                 87,200

 BOSTON PROPERTIES INC          COMMON   101121101           6               200   X   123                                       200

 BOSTON SCIENTIFIC CORP         COMMON   101137107         203             5,000   X   123                                     5,000

 BOWATER INC                    COMMON   102183100       2,704            68,250   X   123             51,300                 16,950

 BRADY CORP CL A                COMMON   104674106          63             3,000   X   123                                     3,000

 BRANDYWINE RLTY TRUST          COMMON   105368203      12,217           751,800   X   123            596,800                155,000

 BRIGGS & STRATTON              COMMON   109043109         133             2,687   X   123                325                  2,362

 BRISTOL-MYERS SQUIBB CO        COMMON   110122108     111,839         1,744,074   X   123            965,579     21,000     757,495

 BRITISH TELECOM PLC -SP ADR    COMMON   111021408         263             1,600   X   123              1,000                    600

 BROADBAND TECH SUB CONV NTS    CV BND   111309AC4      80,814         2,229,364   X   12345        1,880,522    212,753     136,089

 BROADCOM CORP CL A             COMMON   111320107          86             1,400   X   123              1,400                       

 BROADVISION INC                COMMON   111412102         179             3,000   X   123                                     3,000

 BROWNING FERRIS INDS           COMMON   115885105         243             6,300   X   123              6,300                       

 BUILDERS TRANSPORT SUB CONV    CV BND   120084AA6          34           274,458   X   1234           203,762     22,540      48,156

 BUILDERS TRANSPORT SUB DEB CV  CV BND   120084AB4          30           242,167   X   123            182,565     54,304       5,298

 BURLINGTON COAT FACTORY WRHS   COMMON   121579106       9,959           847,600   X   123            693,800                153,800

 BURLINGTON INDS INC            COMMON   121693105       2,408           363,400   X   123            310,100                 53,300

 BURLINGTON NORTHN SANTA FE     COMMON   12189T104       6,406           194,856   X   123            146,700                 48,156

 BURLINGTON RESOURCES INC       COMMON   122014103       9,349           234,097   X   123            184,800                 49,297

 CCB FINANCIAL CORP             COMMON   124875105       1,162            21,500   X   123             15,900                  5,600

 CBRL GROUP INC                 COMMON   12489V106           6               350   X   123                350                       

 CBS CORPORATION                COMMON   12490K107      90,111         2,207,890   X   123          1,521,765     43,400     642,725

 CEC ENTERTAINMENT INC          COMMON   125137109      12,567           350,300   X   123            289,900                 60,400

 CGM CAP DEV FD                 COMMON   125322107         944            41,421   X   123             14,320                 27,101

 CGM REALTY FUND                COMMON   125325407         183            16,684   X   123                                    16,684

 CIGNA CORP                     COMMON   125509109         116             1,386   X   123              1,011                    375

 C.I.T. GROUP INC               COMMON   125577106      60,182         1,969,100   X   123          1,160,100      1,100     807,900

 CMAC INVESTMENT CORP           COMMON   125662106       9,426           241,700   X   123            192,700                 49,000

 CMGI INC                       COMMON   125750109      27,020           147,600   X   123             65,000                 82,600

 CML GRP CVT EURO 144A          CV BND   125820AB6         748           373,921   X   123            285,177     86,815       1,929

 CMS ENERGY CORP                COMMON   125896100      44,563         1,107,160   X   123            740,660      2,800     363,700

 CNET INC                       COMMON   125945105          37               400   X   123                400                       

 CSK AUTO CORP                  COMMON   125965103       6,028           201,350   X   123            163,150                 38,200

 CNA SURETY CORP                COMMON   12612L108       8,295           670,300   X   123            556,000                114,300

 CNF TRANSPORTATION INC         COMMON   12612W104      71,776         1,898,175   X   123          1,355,475     21,600     521,100

 CNB BANCSHARES INC             COMMON   126126101       7,816           194,195   X   123            163,365                 30,830

 CSG SYSTEMS INTL INC           COMMON   126349109      14,931           378,600   X   123            308,200                 70,400

 CSX CORP                       COMMON   126408103         281             7,224   X   123              2,500      4,000         724

 CUNO INC                       COMMON   126583103       4,742           338,700   X   123            276,400                 62,300

 CVS CORP                       COMMON   126650100      54,176         1,140,555   X   123            653,105      9,500     477,950

 CABLE & WIRELESS PLC -SP ADR   COMMON   126830207           9               250   X   123                250                       

 CABLETRON SYS                  COMMON   126920107          86            10,500   X   123              5,000                  5,500

 CABOT OIL & GAS -CL A          COMMON   127097103           9               600   X   123                600                       

 CADENCE DESIGN SYS INC         COMMON   127387108       3,067           119,100   X   123             77,700                 41,400

 CALDWELL & ORKIN MKT OPP FD    COMMON   128819307         148             6,912   X   123                                     6,912

 CAMBREX CORP                   COMMON   132011107       4,244           191,800   X   123            145,000                 46,800

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG   5        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 CAMDEN PROPERTY TR CVT PFD A   CV PFD   133131201         841            35,958   X   123             30,953                  5,005

 CAMPBELL SOUP                  COMMON   134429109          53             1,300   X   123              1,000                    300

 CANADIAN PACIFIC LTD           COMMON   135923100          14               700   X   123                                       700

 CANADIAN NATL RAILWAY CO       COMMON   136375102         608            10,924   X   123              2,220                  8,704

 CANDIES INC                    COMMON   137409108       1,117           334,000   X   123            246,200                 87,800

 CAPITAL AUTOMOTIVE REIT        COMMON   139733109      11,980           963,200   X   123            791,700                171,500

 CAPITAL ONE FINL CORP          COMMON   14040H105       1,840            12,186   X   123              8,986                  3,200

 CAPITAL RE CORP                COMMON   140432105       8,447           489,700   X   123            404,400                 85,300

 CAPITAL SENIOR LIVING CORP     COMMON   140475104       3,936           557,300   X   123            464,400                 92,900

 CAPSTEAD MTG CORP              COMMON   14067E100          51             9,500   X   123                                     9,500

 CARAUSTAR INDS INC             COMMON   140909102         336            14,600   X   123             13,300                  1,300

 CARDINAL HEALTH INC            COMMON   14149Y108         388             5,873   X   123              5,400                    473

 CARNIVAL CORP CL A             COMMON   143658102      39,185           806,880   X   123            488,310                318,570

 CAROLINA PWR & LGT             COMMON   144141108          76             2,000   X   123              2,000                       

 CARPENTER TECHNOLOGY CORP      COMMON   144285103           4               150   X   123                150                       

 CARTER WALLACE INC             COMMON   146285101           6               306   X   123                                       306

 CARTER WALLACE INC CL B        COMMON   146285200           5               300   X   123                                       300

 CASE CORP                      COMMON   14743R103          30             1,200   X   123                                     1,200

 CASEYS GENERAL STORES INC      COMMON   147528103       3,662           248,300   X   123            175,300                 73,000

 CATERPILLAR INC                COMMON   149123101         990            21,548   X   123                800                 20,748

 CEDAR FAIR -LP                 COMMON   150185106           5               200   X   123                200                       

 CENDANT CORP                   COMMON   151313103         853            53,492   X   123             17,930                 35,562

 CENDANT CORP CVT PFD 7.5%      CV PFD   151313301           9               311   X   123                                       311

 CENTEX CORP                    COMMON   152312104          50             1,500   X   123                                     1,500

 CENTOCOR CVT SUB NTS           CV BND   152342AE1      11,097           114,695   X   123             94,395     10,150      10,150

 CENTOCOR INC                   COMMON   152342101         205             5,551   X   123                                     5,551

 CENTRAL & SOUTH WEST CORP      COMMON   152357109         226             9,650   X   123              4,600                  5,050

 CENTURY TELEPHONE ENTERPRISE   COMMON   156686107       2,229            31,731   X   123             14,574                 17,157

 CERIDIAN CORP                  COMMON   15677T106          11               300   X   123                                       300

 CHAMPION ENTERPRISES INC       COMMON   158496109      12,428           641,450   X   123            516,700                124,750

 CHANCELLOR MEDIA CORP          COMMON   158915108         358             7,600   X   123              2,600                  5,000

 CHARTER ONE FIN INC            COMMON   160903100      20,240           701,334   X   123            667,894                 33,440

 CHASE MANHATTAN CORP           COMMON   16161A108     150,586         1,850,520   X   123          1,138,444     11,100     700,976

 CHATEAU COMMUNITIES INC        COMMON   161726104          11               416   X   123                                       416

 CHECKFREE HOLDINGS CORP        COMMON   162816102          51             1,200   X   123              1,200                       

 CHEESECAKE FACTORY (THE)       COMMON   163072101          12               500   X   123                                       500

 CHEMED CORP                    COMMON   163596109          26             1,000   X   123                                     1,000

 CHESAPEAKE CORP                COMMON   165159104       8,254           304,300   X   123            247,600                 56,700

 CHESAPEAKE ENERGY CORP         COMMON   165167107       3,655         2,658,100   X   123          2,255,650    150,225     252,225

 CHESAPEAKE ENERGY CVT PFD 144A CV PFD   165167206      40,588         3,183,343   X   1234         2,927,956                255,387

 CHESAPEAKE ENERGY CVT PFD 7%   CV PFD   165167305      14,456         1,133,772   X   123            892,055      7,194     234,523

 CHEVRON CORP                   COMMON   166751107       8,032            90,502   X   123             50,973      3,000      36,529

 CHIREX INC                     COMMON   170038103       6,417           261,900   X   123            214,300                 47,600

 CHIRON CORP CVT SUB NTS        CV BND   170040AB5      19,242           198,886   X   123            184,117                 14,769

 CHITTENDEN CORP                COMMON   170228100       3,539           132,600   X   123            122,000                 10,600

 CHOICEPOINT INC                COMMON   170388102          10               200   X   123                                       200

 CHUBB CORP                     COMMON   171232101      44,231           755,268   X   123            503,918     17,900     233,450

 CIENA CORP                     COMMON   171779101         506            22,500   X   123              2,000                 20,500

 CINCINNATI BELL INC            COMMON   171870108       1,450            64,625   X   123             12,025                 52,600

 CINCINNATI FINANCIAL CORP      COMMON   172062101          63             1,731   X   123              1,731                       

 CINERGY CORP                   COMMON   172474108           8               300   X   123                                       300

 CIRCUIT CITY STORES-CIRCUIT GP COMMON   172737108         724             9,450   X   123              6,500                  2,950

 CISCO SYSTEMS INC              COMMON   17275R102     123,966         1,131,458   X   123            601,703      6,050     523,705

 CIRRUS LOGIC 144A CVT SUB NTS  CV BND   172755AA8       4,876            69,160   X   123             42,322                 26,838

 CIRRUS LOGIC CVT SUB NTS       CV BND   172755AC4     222,278         3,152,882   X   1234         2,675,985    430,446      46,451

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG   6        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 CITADEL COMMUNICATIONS         COMMON   172853202       9,473           284,900   X   123            234,800                 50,100

 CINTAS CORP                    COMMON   172908105      15,945           243,900   X   123            121,650                122,250

 CIRCUS CIRCUS ENTERPRISE       COMMON   172909103          91             5,200   X   123              4,700                    500

 CITIGROUP INC                  COMMON   172967101     179,996         2,817,935   X   123          1,742,757     26,550   1,048,628

 CITIZENS BANKING CORP MICH     COMMON   174420109         271             7,536   X   123                 11                  7,525

 CITIZENS UTILITIES CO CL B     COMMON   177342201           5               661   X   123                661                       

 CITY INV CO LIQ TR UBI         COMMON   177900107          15            12,000   X   123             12,000                       

 CITY NATIONAL CORP             COMMON   178566105       9,288           300,820   X   123            242,100                 58,720

 CLAIRE'S STORES INC            COMMON   179584107      11,321           375,800   X   123            282,700                 93,100

 CLAYTON HOMES INC              COMMON   184190106         238            21,500   X   123             16,875                  4,625

 CLEAR CHANNEL COMMUNICATIONS   COMMON   184502102         143             2,130   X   123              1,900                    230

 CLOROX CO                      COMMON   189054109      23,327           199,055   X   123             99,300                 99,755

 COCA COLA                      COMMON   191216100      16,236           264,537   X   123             60,800      3,000     200,737

 COEUR D'ALENE MINES SUB CVT    CV BND   192108AB4       5,289            89,648   X   1234            74,264      7,692       7,692

 COLGATE-PALMOLIVE CO           COMMON   194162103       4,741            51,529   X   123             15,754                 35,775

 COLONIAL BANCGROUP INC         COMMON   195493309      10,057           838,050   X   123            639,050                199,000

 COLONIAL US GOVT FD CL B       COMMON   196093405          45             6,875   X   123                                     6,875

 COLUMBIA ENERGY GROUP          COMMON   197648108     133,551         2,555,999   X   123          1,585,722      1,700     968,577

 COLUMBIA HCA HEALTHCARE CORP   COMMON   197677107          12               652   X   123                                       652

 COMAIR HLDGS INC               COMMON   199789108           8               337   X   123                                       337

 COMCAST CORP CL A              COMMON   200300101      43,013           699,400   X   123            353,550                345,850

 COMCAST CORP CL A SPL          COMMON   200300200       7,046           111,950   X   123             86,400                 25,550

 COMERICA INC                   COMMON   200340107       6,016            96,345   X   123             73,100                 23,245

 COMMERCIAL FEDERAL CORP        COMMON   201647104      12,750           549,873   X   123            438,248                111,625

 COMMONWEALTH ENERGY SYSTEM     COMMON   202800108       6,874           180,900   X   123            146,400                 34,500

 COMMUNITY FIRST BANKSHARES     COMMON   203902101      13,272           663,600   X   123            543,600                120,000

 COMPAQ COMPUTER                COMMON   204493100     144,034         4,545,369   X   123          3,012,398     57,400   1,475,571

 COMPUCOM SYSTEMS INC           COMMON   204780100           3             1,000   X   123                                     1,000

 COMPUTER ASSOC INT             COMMON   204912109       4,004           112,591   X   123             68,574                 44,017

 COMPUTER SCIENCE CORP          COMMON   205363104         574            10,400   X   123              8,000                  2,400

 COMPUWARE CORP                 COMMON   205638109         353            14,800   X   123             13,400                  1,400

 CONAGRA INC                    COMMON   205887102      96,293         3,757,778   X   123          2,325,856      3,000   1,428,922

 CONCENTRIC NETWORK CORP        COMMON   20589R107      11,414           152,700   X   123            124,900                 27,800

 COM 21 INC                     COMMON   205937105       8,122           309,400   X   123            253,300                 56,100

 CONCORD COMMUNICATIONS INC     COMMON   206186108      14,746           258,700   X   123            211,700                 47,000

 CONECTIV INC                   COMMON   206829103          30             1,540   X   123                                     1,540

 CONEXANT SYSTEMS INC           COMMON   207142100          88             3,180   X   123                600                  2,580

 CONMED CORP                    COMMON   207410101      18,107           584,100   X   123            488,075                 96,025

 CONNECTICUT ENERGY CORP        COMMON   207567108          12               500   X   123                500                       

 CONOCO INC                     COMMON   208251306      92,853         3,780,190   X   123          2,489,340      3,100   1,287,750

 CONSECO INC                    COMMON   208464107      10,288           333,213   X   123            314,114                 19,099

 CONSOLIDATED EDISON INC        COMMON   209115104      55,179         1,217,735   X   123            685,380                532,355

 CONSOLIDATED FREIGHTWAYS CORP  COMMON   209232107          49             4,150   X   123                                     4,150

 CONSOLIDATED NATURAL GAS       COMMON   209615103          35               725   X   123                225                    500

 CONSOLIDATED PAPERS INC        COMMON   209759109           9               400   X   123                400                       

 CONSOLIDATED STORES CORP       COMMON   210149100       5,398           178,089   X   123            124,309                 53,780

 CONVERGYS CORP                 COMMON   212485106         112             6,525   X   123              1,825                  4,700

 COOPER CAMERON CORP            COMMON   216640102      72,891         2,151,750   X   123          1,290,605        800     860,345

 COOPER INDS INC                COMMON   216669101         164             3,850   X   123              2,500                  1,350

 CORN PRODUCTS INTERNATIONAL    COMMON   219023108       7,935           331,496   X   123            272,046                 59,450

 CORNING INC                    COMMON   219350105       2,509            41,809   X   123              7,500                 34,309

 CORTECH INC                    COMMON   22051J308           1               200   X   123                                       200

 COST PLUS INC CALIFORNIA       COMMON   221485105       2,014            68,550   X   123             50,700                 17,850

 COSTCO COMPANIES INC           COMMON   22160Q102         110             1,200   X   123                                     1,200

 COUNTRYWIDE CREDIT IND INC     COMMON   222372104       7,948           211,950   X   123            110,350      8,000      93,600

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

                                                                                                           FILE NO.  28-398         

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

 PG   7        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 COVANCE INC                    COMMON   222816100         271            10,827   X   123              4,875                  5,952

 COX COMMUNICATIONS INC -CL A   COMMON   224044107         144             1,900   X   123              1,900                       

 CRANE CO                       COMMON   224399105       3,581           148,050   X   123            127,800                 20,250

 CRAY RESEARCH SUB DEB CONV     CV BND   225224AA2      26,081           350,079   X   12356          317,618     19,872      12,589

 CREDENCE SYSTEMS CVT SUB NTS   CV BND   225302AC2       4,658            63,597   X   123             55,644      5,061       2,892

 CROMPTON & KNOWLES CORP        COMMON   227111101      56,863         3,610,340   X   123          2,490,285     33,800   1,086,255

 CROSS TIMBERS OIL CO           COMMON   227573102      10,848         1,535,850   X   123            662,850                873,000

 CROWN CORK & SEAL CO INC       COMMON   228255105       1,048            36,700   X   123             24,200                 12,500

 CULLEN/FROST BANKERS INC       COMMON   229899109      14,391           300,200   X   123            247,200                 53,000

 CYBEX COMPUTER PRODUCTS        COMMON   232522102       1,794           100,000   X   123             74,025                 25,975

 CYPRESS SEMICONDUCTOR 144A CVT CV BND   232806AB5      35,838           402,107   X   1234           374,594     21,164       6,349

 CYPRESS SEMICON CVT SUB NTS    CV BND   232806AD1     126,327         1,417,415   X   1234         1,246,412    149,839      21,164

 CYPRESS SEMICONDUCTOR          COMMON   232806109      12,641         1,404,500   X   123          1,147,200                257,300

 CYPRUS AMAX MINERALS CO        COMMON   232809103          16             1,342   X   123                                     1,342

 CYTEC INDS                     COMMON   232820100       5,475           245,366   X   123            201,500                 43,866

 CYTOGEN CORP                   COMMON   232824102          30            28,800   X   123             28,800                       

 DII GROUP INC                  COMMON   232949107           2                80   X   123                                        80

 DQE INC                        COMMON   23329J104      25,459           663,430   X   123            341,250                322,180

 DTE ENERGY CO                  COMMON   233331107          88             2,300   X   123              1,500                    800

 DVI INC                        COMMON   233343102       9,353           628,800   X   123            513,400                115,400

 DAILY MAIL & GENERAL TST NV    COMMON   2338099A2         145             3,000   X   123                                     3,000

 DAISYTEK INTL CORP             COMMON   234053106      12,454           749,100   X   123            616,800                132,300

 DALLAS SEMICONDUCTOR CORP      COMMON   235204104       2,097            54,300   X   123             50,000                  4,300

 DANA CORP                      COMMON   235811106      72,447         1,906,500   X   123          1,083,350      1,600     821,550

 DANAHER CORP                   COMMON   235851102         257             4,924   X   123              4,563                    361

 DARDEN RESTAURANTS INC         COMMON   237194105         243            11,800   X   123              4,300                  7,500

 DATA BROADCASTING CORP         COMMON   237596101          14             1,000   X   123              1,000                       

 DATA GENERAL CORP CVT SUB NTS  CV BND   237688AG1      73,979           875,487   X   123            764,777     86,660      24,050

 DATRON SYS INC DEL             COMMON   238173108         111            17,800   X   123                        17,800            

 DAYTON HUDSON CORP             COMMON   239753106      15,860           238,056   X   123             54,954                183,102

 DE BEERS CONS MINES ADR        COMMON   240253302           8               400   X   123                                       400

 DEAN FOODS                     COMMON   242361103      18,842           528,900   X   123            445,800                 83,100

 DECORA INDS INC                COMMON   243593308           2               300   X   123                                       300

 DEERE & CO                     COMMON   244199105     117,327         3,037,594   X   123          1,674,265              1,363,329

 DELAWARE GRP TAX FREE USA FD   COMMON   245909106          49             4,202   X   123                                     4,202

 DELL COMPUTER CORP             COMMON   247025109         560            13,700   X   123              2,200                 11,500

 DELPHI FINL GROUP              COMMON   247131105       2,493            73,600   X   123             54,500                 19,100

 DELUXE CORP                    COMMON   248019101       7,858           269,800   X   123            227,500                 42,300

 DENTSPLY INTERNATIONAL INC     COMMON   249030107      15,464           665,100   X   123            549,100                116,000

 DEVELOPERS DIVERS REALTY       COMMON   251591103       9,923           693,300   X   123            454,650      6,450     232,200

 DIAL CORP                      COMMON   25247D101         416            12,100   X   123              4,200                  7,900

 DIAMOND OFFSHORE CVT SUB NTS   CV BND   25271CAA0      47,164           456,793   X   123            440,744                 16,049

 DIAMOND OFFSHORE DRILLING      COMMON   25271C102         917            29,000   X   123             21,200                  7,800

 DIGI INTERNATIONAL INC         COMMON   253798102          81            12,067   X   123                                    12,067

 DILLARDS INC CL A              COMMON   254067101         127             5,000   X   123              5,000                       

 THE WALT DISNEY CO             COMMON   254687106      11,405           366,421   X   123            212,559     13,000     140,862

 DIXIE GROUP INC CVT SUB DEBS   CV BND   255519AA8       8,560           109,742   X   1234            90,146      7,298      12,298

 DOLLAR GENERAL                 COMMON   256669102      12,546           369,000   X   123            296,500        700      71,800

 DOMINION RES BLACK WARRIOR     COMMON   25746Q108         133             9,000   X   123                                     9,000

 DOMINION RES INC VA            COMMON   257470104         329             8,900   X   123              1,400                  7,500

 DONNELLEY RR & SONS CO         COMMON   257867101       1,391            43,208   X   123              8,500                 34,708

 DOVER CORP                     COMMON   260003108       2,709            82,408   X   123             37,600                 44,808

 DOW CHEMICAL                   COMMON   260543103       3,941            42,292   X   123             23,800      6,300      12,192

 DOW JONES & CO INC             COMMON   260561105          38               800   X   123                                       800

 DUPONT E I                     COMMON   263534109      29,036           500,075   X   123            314,383     18,400     167,292

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG   8        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 DUFF & PHELPS UTILS INC        COMMON   264324104           1               100   X   123                100                       

 DUKE ENERGY CORP               COMMON   264399106         215             3,931   X   123              1,800                  2,131

 DUKE REALTY INVESTMENTS INC    COMMON   264411505          11               500   X   123                500                       

 DUN & BRADSTREET CORP          COMMON   26483B106      59,056         1,657,700   X   123          1,018,350                639,350

 DURA AUTOMOTIVE SYSTEMS        COMMON   265903104           9               320   X   123                                       320

 DURA PHARMACEUTICALS CVT NTS   CV BND   26632SAA7     138,106         1,829,222   X   12346        1,508,283    263,667      57,272

 DYCOM INDUSTRIES INC           COMMON   267475101      16,610           381,850   X   123            313,600                 68,250

 ECI TELECOM                    COMMON   268258100      13,218           377,660   X   123            336,800                 40,860

 EMC CORP                       COMMON   268648102     141,821         1,110,144   X   123            635,144      3,600     471,400

 WEATHERFORD INTL CVT PFD 5%    CV PFD   268939402      12,685           417,617   X   1236           403,555                 14,062

 E-TEK DYNAMICS INC             COMMON   269240107          50             1,400   X   123              1,400                       

 EARTHGRAINS CO                 COMMON   270319106          12               544   X   123                                       544

 EARTHLINK NETWORK INC          COMMON   270322100          50               834   X   123                834                       

 EASTERN ENTERPRISES            COMMON   27637F100      11,447           314,700   X   123            255,500                 59,200

 EASTERN UTILITIES ASSOCIATES   COMMON   277173100         127             4,500   X   123                                     4,500

 EASTMAN CHEMICAL CO            COMMON   277432100          11               262   X   123                                       262

 EASTMAN KODAK                  COMMON   277461109      11,509           180,184   X   123            146,109      2,800      31,275

 EATON CORP                     COMMON   278058102     108,054         1,511,249   X   123            878,756        900     631,593

 ECHELON CORP                   COMMON   27874N105          15             1,500   X   123                                     1,500

 EDISON INTERNATIONAL           COMMON   281020107       1,445            64,949   X   123             58,800                  6,149

 EDO CORP CVT SUB DEBS          CV BND   281347AB0      79,652         1,011,452   X   123456         970,544     15,909      24,999

 EINSTEIN/NOAH BAGEL CVT DEBS   CV BND   282577AC9     114,484         1,973,865   X   1234         1,705,632    194,116      74,117

 EL PASO ENERGY CORP            COMMON   283905107      15,647           478,666   X   123            405,356                 73,310

 ELAN CORP PLC SPONS ADR        COMMON   284131208       1,097            15,721   X   123                                    15,721

 ELECTRONIC DATA SYSTEMS CORP   COMMON   285661104      58,216         1,195,700   X   123            837,500     30,900     327,300

 EMERSON ELECTRIC CO            COMMON   291011104         817            15,424   X   123              1,900                 13,524

 EMPRESAS ICA SOC SUB DEB CONV  CV BND   292448AC1     161,863         2,471,195   X   1235         2,150,835    198,038     122,322

 ENDESA -SPONSORED ADR          COMMON   29258N107         428            17,200   X   123                                    17,200

 ENDOSONICS CORP                COMMON   29264K105       5,977           919,600   X   123            757,500                162,100

 ENERGY EAST CORP               COMMON   29266M109       5,477           104,200   X   123             78,150                 26,050

 ENERGY FACTORS CVT DEBS        CV BND   292667AB8         168             2,020   X   123                                     2,020

 ENGLEHARD CORP                 COMMON   292845104       2,003           118,235   X   123             76,400                 41,835

 ENRON CORP                     COMMON   293561106      18,863           293,595   X   123            219,095        500      74,000

 ENRON OIL & GAS                COMMON   293562104         120             7,200   X   123              3,000                  4,200

 ENTERCOM COMMUNICATIONS CORP   COMMON   293639100       8,412           237,800   X   123            194,800                 43,000

 ENTERGY CORP NEW               COMMON   29364G103         204             7,400   X   1234             1,400      3,000       3,000

 EQUIFAX INC                    COMMON   294429105         358            10,400   X   123                600                  9,800

 EQUITABLE COMPANIES INC        COMMON   29444G107       5,782            82,600   X   123             82,100                    500

 EQUITY RESIDENTIAL PROPS TR    COMMON   29476L107          95             2,300   X   123              1,700                    600

 EQUITY RES PROP CVT PFD G 7.25 CV PFD   29476L859         408            18,997   X   123             17,716                  1,281

 ERICSSON (LM) TEL SP ADR       COMMON   294821400          71             3,000   X   123                                     3,000

 ETHYL CORP                     COMMON   297659104         638           150,000   X   123                                   150,000

 ENI SPA                        COMMON   2981XEUR1         191            30,000   X   123                                    30,000

 COMPAGNIE DE SAINT-GOBAIN      COMMON   2983XEUR7         111               700   X   123                                       700

 GUYENNE ET GASCOGNE SA         COMMON   2985XEUR2         177               400   X   123                                       400

 SOL MELIA S A                  COMMON   2987XEUR8         101             2,750   X   123                                     2,750

 AIR NEW ZEALAND LTD            COMMON   29870X129         240           138,000   X   123                                   138,000

 LOXLEY PUBLIC CO EURO CONV     CV BND   2987009J6      37,429         3,742,942   X   1235         3,487,834     18,666     236,442

 ADVANCE AGRO PUB EURO CONV     CV BND   2987009L1     940,682        11,034,394   X   1236         9,383,497    965,488     685,409

 BANPU PUBLIC CO EURO CONV      CV BND   2987009M9     134,224         1,646,920   X   12356        1,498,581     18,410     129,929

 TOTAL ACCESS COMMUN EURO CVT   CV BND   2987009U1     132,299         1,633,320   X   123          1,344,276     88,094     200,950

 SSANGYONG OIL REFNG SUB CONV   CV BND   2987010A2      29,748           466,643   X   123            374,786     36,191      55,666

 SAKURA FIN P/P REG CONV PFD II CV BND   2987010B0         275           468,000   X   123            468,000                       

 THERMO TERRATECH EURO CVT      CV BND   2987010H7      90,539         1,077,850   X   123            967,789     62,893      47,168

 BATTLE MOUNTAIN CVT SUB DEBS   CV BND   2987010R5      81,545         1,087,265   X   123            911,509     96,969      78,787

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG   9        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 SAMSUNG DISPLAY DEVICES CONV   CV BND   2987010Z7       3,922            38,639   X   123             34,753                  3,886

 BURNS PHILP EURO CVT           CV BND   2987020Q5     433,553         8,714,629   X   123          8,218,589     39,161     456,879

 SIAM COMMERCIAL BK EURO CONV   CV BND   2987020R3      83,738         1,884,423   X   1236         1,512,340    142,890     229,193

 FEDERAL RLTY INVS TR CONV EURO CV BND   2987021Q4     345,275         3,923,576   X   123          3,618,023    166,665     138,888

 FMC CORP EURO CONV             CV BND   2987021Z4     182,300         2,003,297   X   123          2,003,297                       

 PT INTI INDORAYON CVT NTS      CV BND   2987022H3      14,448         2,889,644   X   123          2,290,937    510,662      88,045

 MBI FINANCE LTD EURO CONV      CV BND   2987022N0      13,882           182,652   X   123            182,652                       

 CML GROUP CVT EURO             CV BND   2987023T6       1,294           646,802   X   1234           512,718    105,145      28,939

 ROCKEFELLER CTR PPTYS EURO CV  CV BND   2987023W9   1,714,104        23,163,570   X   123         19,604,284  3,305,956     253,330

 SAPPI FINANCE EURO CONV        CV BND   2987024I9     214,367         2,395,158   X   123          1,994,686    165,465     235,007

 FLI CAPITAL C I REG EURO CVT   CV BND   2987027A3   1,178,639        14,031,421   X   123         14,031,421                       

 BANGKOK BANK PUB EURO CVT      CV BND   2987027D7     562,689        12,100,830   X   1235        10,828,592    563,301     708,937

 OGDEN CORP SUB DEB CONV EURO   CV BND   298703018      69,464           742,929   X   123            722,702                 20,227

 OGDEN CORP SUB DEB CONV EURO   CV BND   298703026      23,189           246,689   X   1236           222,378                 24,311

 SIAM COMMERCIAL BANK FOR REG   COMMON   2987038G7         892         1,524,900   X   123            337,500    121,500   1,065,900

 SAMSUNG ELEC REGS EURO CVT SK  CV BND   2987039B7      49,024           493,941   X   12356          401,991     46,679      45,271

 THERMEDICS INC CVT COMP GUAR   CV BND   2987042N6       4,396            68,684   X   123             57,977                 10,707

 PILTEL INTL HLDG CORP CVT      CV BND   2987042X4     253,610         6,340,249   X   123          5,591,622    249,542     499,085

 TELEKOM MALAYSIA EURO CVT      CV BND   2987043F2   1,362,951        16,322,772   X   123         14,406,302    511,878   1,404,592

 STB CAYMEN CAP EURO CVT        CV BND   2987043P0         109           134,000   X   123            134,000                       

 SSANGYONG OIL EURO CVT DEBS    CV BND   2987043U9       7,679            72,789   X   123             72,789                       

 APP FINANCE VII CVT REGS       CV BND   2987043V7     169,799         2,716,780   X   123          2,527,590     26,195     162,995

 SANWA INTL FIN BERM TST REGS   CV BND   2987045G8         708           780,558   X   123            761,862                 18,696

 PT INDAH KIAT PULP & PAPER     COMMON   29871A136       3,331        11,823,000   X   123          3,169,000              8,654,000

 TOTAL ACCESS COMMUNICATION     COMMON   29871A151       1,115           516,000   X   123            256,000                260,000

 ADVANCED INFO SERVICE-FOR RG   COMMON   29871A177          56             7,700   X   123                                     7,700

 PAYDEN & RYGEL TAILORED STIFF  COMMON   29871A227         870           496,968   X   123            496,968                       

 BOOTS COMPANY PLC              COMMON   29871A284         130             9,000   X   123                                     9,000

 MATAV RT                       COMMON   29871A466         179            34,000   X   123                                    34,000

 SOUTHCORP LIMITED              COMMON   29871A524         118            29,000   X   123                                    29,000

 CHRISTIANIA BANK OG KREDITK    COMMON   29871A532          86            22,000   X   123                                    22,000

 DATATEC LIMITED                COMMON   29871A540       2,253           145,099   X   123                                   145,099

 MAPFRE VIDA SEGUROS            COMMON   2989XEUR4          82             2,500   X   123                                     2,500

 EVEREST REINSURANCE HLDGS INC  COMMON   299808105      26,744           857,525   X   123            510,075                347,450

 EXIDE CORP SR SUB CVT P/P 144A CV BND   302051AF4     105,654         1,903,669   X   12345        1,695,018    174,149      34,502

 EXODUS COMMUNICATIONS INC      COMMON   302088109          40               300   X   123                300                       

 EXXON                          COMMON   302290101     227,218         3,220,077   X   123          1,958,526     20,600   1,240,951

 FPA PARAMOUNT FUND             COMMON   302546106          55             6,723   X   123              6,723                       

 FPA PERENNIAL FUND             COMMON   302548102          76             4,211   X   123              4,211                       

 FPL GROUP INC                  COMMON   302571104         568            10,659   X   123                700                  9,959

 FAMILY DOLLAR STORES INC       COMMON   307000109         299            13,000   X   123              9,000                  4,000

 FARMER BROS CO                 COMMON   307675108          20               100   X   123                                       100

 FASTENAL CO                    COMMON   311900104          60             1,700   X   123              1,700                       

 FDX CORP                       COMMON   31304N107      65,580           705,165   X   123            468,800     13,000     223,365

 FREDDIE MAC                    COMMON   313400301      78,480         1,369,331   X   123            947,067     10,600     411,664

 FANNIE MAE                     COMMON   313586109     140,953         2,035,421   X   123          1,172,548      5,100     857,773

 FEDERAL SIGNAL CORP            COMMON   313855108      13,074           626,300   X   123            510,300                116,000

 FEDERATED DEPT STORES          COMMON   31410H101     128,198         3,194,966   X   123          1,963,160      3,796   1,228,010

 FEDERATED INVESTORS INC CL B   COMMON   314211103      17,928           985,700   X   123            798,400                187,300

 FERRO CORP                     COMMON   315405100      12,640           510,700   X   123            417,800                 92,900

 FIDELITY DIVERSIFIED INTL FD   COMMON   315910802          51             2,776   X   123                                     2,776

 FIDELITY SPART US EQ INDEX     COMMON   315911206         307             6,683   X   123                                     6,683

 FIDELITY SPART MARKET INDEX    COMMON   315912204         856             9,574   X   123              4,447      1,040       4,087

 FIDELITY DISCIPLINED EQ FD     COMMON   316066208         189             6,160   X   123                                     6,160

 FIDELITY CONTRAFUND            COMMON   316071109          36               606   X   123                                       606

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  10        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 FIDELTIY EQUITY INC II FD      COMMON   316145101          48             1,568   X   123                                     1,568

 FIDELITY PURITAN LOW-PRICE STK COMMON   316345305                             2   X   123                                         2

 FIELDCREST CANNON CVT SUB DEBS CV BND   316549AB0      28,350           358,856   X   123            295,696     54,687       8,473

 FIFTH THIRD BANCORP            COMMON   316773100       2,439            36,994   X   123                                    36,994

 FINOVA GROUP INC               COMMON   317928109     120,992         2,332,378   X   123          1,365,189      1,300     965,889

 FIRST AMERICAN CORP TENN       COMMON   318900107         166             4,496   X   123              4,496                       

 FIRST DATA CORP                COMMON   319963104      98,623         2,306,970   X   123          1,374,475     14,800     917,695

 FIRST NATL BANCORP ILL         COMMON   320920101       1,015            13,440   X   123                                    13,440

 FIRST SECURITY CORP DEL        COMMON   336294103         251            13,000   X   123                                    13,000

 FIRST TENN NATL COR            COMMON   337162101       3,845           104,992   X   123             45,200      6,000      53,792

 FIRST UNION CORP               COMMON   337358105         915            17,114   X   123             15,713                  1,401

 FIRST VIRGINIA BKS             COMMON   337477103         123             2,700   X   123                450                  2,250

 FIRSTAR CORP                   COMMON   33763V109      17,929           200,325   X   123             51,900      1,000     147,425

 FISERV INC                     COMMON   337738108      23,899           445,677   X   123            183,200                262,477

 FIRSTFED FINL CORP             COMMON   337907109         628            39,100   X   123             29,300                  9,800

 FIRSTMERIT CORP                COMMON   337915102       2,588           100,500   X   123             75,900                 24,600

 FLEET FINL GROUP INC           COMMON   338915101     242,144         6,435,715   X   123          4,045,615     36,200   2,353,900

 FLORIDA PROGRESS CORP          COMMON   341109106          42             1,100   X   123                600                    500

 FLUOR CORP                     COMMON   343861100         324            12,000   X   123              1,500                 10,500

 FOOD LION INC CL B             COMMON   344775101         615            68,300   X   123             68,300                       

 FOOD LION INC CL A             COMMON   344775200       2,854           310,100   X   123            182,200                127,900

 FOODMAKER INC                  COMMON   344839204       5,993           235,000   X   123            191,400                 43,600

 FOOTSTAR INC                   COMMON   344912100          47             1,468   X   123                                     1,468

 FORD MOTOR COMPANY             COMMON   345370100      27,982           493,615   X   123            305,850                187,765

 FORE SYSTEMS INC               COMMON   345449102      11,085           586,300   X   123            471,200                115,100

 FOREST LABS                    COMMON   345838106         338             6,000   X   123              4,000                  2,000

 FORT JAMES CORP                COMMON   347471104          71             2,230   X   123              2,200                     30

 FRANKLIN (AGE) HI INC CL I     COMMON   353538101           3               966   X   123                                       966

 FRANKLIN RESOURCES INC         COMMON   354613101          38             1,350   X   123                                     1,350

 FRED'S INC                     COMMON   356108100       2,184           198,500   X   123            146,400                 52,100

 FRESENIUS MEDICAL CARE ADR     COMMON   358029106          25             1,258   X   123                                     1,258

 FRIEDMAN BILLINGS RAMSEY -A    COMMON   358433100          23             3,500   X   123              1,500                  2,000

 FRISCO BAY INDS LTD            COMMON   358751105           3             1,000   X   123                                     1,000

 FRONTIER CORP                  COMMON   35906P105         311             6,000   X   123              6,000                       

 FURNITURE BRANDS INTL INC      COMMON   360921100       9,290           419,900   X   123            345,800                 74,100

 G K INTELLIGENT SYSTEMS        COMMON   361751100          13             5,200   X   123                                     5,200

 GTE CORP                       COMMON   362320103     192,253         3,177,730   X   123          1,940,217     10,200   1,227,313

 GABELLI GLOBAL MUTIMEDIA TR    COMMON   36239Q109                             1   X   123                                         1

 GABELLI EQUITY TRUST           COMMON   362397101                            18   X   123                                        18

 GALLAGHER A J                  COMMON   363576109       1,656            36,000   X   123             32,700                  3,300

 GANNETT CO                     COMMON   364730101       3,576            56,766   X   123             30,600                 26,166

 GAP INC                        COMMON   364760108       2,785            41,375   X   123             31,800                  9,575

 GATEWAY 2000 INC               COMMON   367833100      23,245           339,025   X   123            295,075                 43,950

 GENCORP INC                    COMMON   368682100       4,903           272,400   X   123            217,200                 55,200

 GENENTECH INC -SPECIAL         COMMON   368710307      17,100           192,950   X   123             88,850                104,100

 GENERAL COMMUNICATIONS CL A    COMMON   369385109         154            33,800   X   123                                    33,800

 GENERAL ELECTRIC CO            COMMON   369604103     115,451         1,043,626   X   123            526,827     18,012     498,787

 GENERAL INSTRUMENT CORP        COMMON   370120107          30             1,000   X   123              1,000                       

 GENERAL MILLS INC              COMMON   370334104       2,256            29,850   X   123              9,100                 20,750

 GENERAL MOTORS CORP            COMMON   370442105     172,037         1,977,440   X   123          1,222,153      1,900     753,387

 GEN MOTORS CL H                COMMON   370442832      76,093         1,508,640   X   123          1,066,890     35,600     406,150

 GENERAL NUTRITION COS          COMMON   37047F103         910            65,000   X   123             37,000                 28,000

 GENERAL RE CORP                COMMON   370563108          20               100   X   123                                       100

 GENUINE PARTS                  COMMON   372460105         154             5,332   X   123                225                  5,107

 GENZYME CORP -GENL DIV         COMMON   372917104         113             2,250   X   123                250                  2,000

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  11        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 GENZYME CORP TISSUE REPAIR     COMMON   372917401                            67   X   123                  7                     60

 GENZYME -MOLECULAR ONCOLOGY    COMMON   372917500           1               243   X   123                 27                    216

 GEORGIA GULF CORP              COMMON   373200203          58             5,200   X   123              5,200                       

 GEORGIA PACIFIC GROUP          COMMON   373298108      25,317           340,967   X   123            263,380      6,500      71,087

 GA PAC TIMBER GRP              COMMON   373298702      57,946         2,582,487   X   123          1,551,780              1,030,707

 GEOTEL COMMUNICATIONS          COMMON   373656107      18,745           408,600   X   123            334,600                 74,000

 GETTY IMAGES INC               COMMON   374276103       4,725           225,000   X   123            185,500                 39,500

 GIANT CEMENT HLD INC           COMMON   374450104       7,549           439,200   X   123            362,000                 77,200

 GILLETTE CO                    COMMON   375766102      43,494           731,760   X   123            524,152     13,100     194,508

 GLAXO WELLCOME PLC ADR         COMMON   37733W105       2,078            31,048   X   123             12,800                 18,248

 GLOBAL INDUSTRIAL TECH         COMMON   379335102          67             6,449   X   123                                     6,449

 GLOBAL MARINE INC              COMMON   379352404       2,123           180,700   X   123            114,000                 66,700

 GLYCOMED INC SUB DEB CONV      CV BND   380002AA3      78,175           968,111   X   12345          763,553    179,107      25,451

 GOLDEN STATE BANCORP           COMMON   381197102       4,601           206,800   X   123            141,000                 65,800

 GOLDEN WEST FINL               COMMON   381317106          19               200   X   123                                       200

 GOODYEAR TIRE & RUBBER CO      COMMON   382550101          30               600   X   123                                       600

 GOVTS SECS INC FD GNMA F       COMMON   383743598           2            48,169   X   123             48,169                       

 GRACE W R & CO                 COMMON   38388F108      28,133         2,320,275   X   123          1,604,625      4,600     711,050

 GRADALL INDUSTRIES INC         COMMON   38411P107       2,210           170,000   X   123            126,200                 43,800

 GRADCO SYSTEMS INC             COMMON   384111100                            93   X   123                                        93

 GRAINGER W W                   COMMON   384802104       1,081            25,100   X   123              2,200                 22,900

 GREAT ATLANTIC & PAC TEA       COMMON   390064103      10,464           348,800   X   123            278,000                 70,800

 GREAT LAKES CHEMICAL           COMMON   390568103       5,498           149,600   X   123            125,700                 23,900

 GRIFFON CORPORATION            COMMON   398433102          34             5,000   X   123              5,000                       

 GROUP 1 SOFTWARE INC           COMMON   39943Y103                            24   X   123                                        24

 GUIDANT CORP                   COMMON   401698105     109,732         1,813,744   X   123            975,614      4,100     834,030

 GULF CANADA RES LTD -ORD       COMMON   40218L305           3             1,000   X   123              1,000                       

 GULFSTREAM AEROSPACE CORP      COMMON   402734107       6,454           148,800   X   123             98,700                 50,100

 GYMBOREE CORP                  COMMON   403777105       2,653           296,800   X   123            220,400                 76,400

 HMT TECH CVT SUB NTS           CV BND   403917AD9      35,383           756,866   X   1234           675,815     68,420      12,631

 HCR MANOR CARE                 COMMON   404134108      32,130         1,408,400   X   123            961,500     41,500     405,400

 HRPT PROPERTIES TRUST          COMMON   40426W101         140            10,400   X   123             10,000                    400

 HUBCO INC                      COMMON   404382103      10,962           326,600   X   123            264,700                 61,900

 HALLIBURTON CO                 COMMON   406216101      53,537         1,390,566   X   123            956,240     26,400     407,926

 HAMILTON BANCORP INC           COMMON   407013101       3,692           142,700   X   123            105,900                 36,800

 HANNAFORD BROTHERS CO          COMMON   410550107      16,585           365,000   X   123            297,200                 67,800

 HARLAND (JOHN H) CO            COMMON   412693103       4,636           358,300   X   123            264,900                 93,400

 HARLEY DAVIDSON                COMMON   412822108         763            13,300   X   123              1,500                 11,800

 HARNISCHFEGER INDS             COMMON   413345109          40             7,000   X   123              7,000                       

 HARRAH'S ENTERTAINMENT INC     COMMON   413619107       2,147           112,650   X   123            108,850                  3,800

 OAKMARK INTL FUND              COMMON   413838202         405            32,656   X   123                                    32,656

 HARRIS CORP                    COMMON   413875105      52,398         1,830,498   X   123          1,136,190      1,000     693,308

 HARTE-HANKS INC                COMMON   416196103      10,396           378,900   X   123            311,200                 67,700

 HARTFORD FINANCIAL SVCS GRP    COMMON   416515104      48,544           854,458   X   123            690,558        400     163,500

 HASBRO INC                     COMMON   418056107     156,074         5,393,388   X   123          3,217,930              2,175,458

 HEALTH CARE PPTYS INV          COMMON   421915109       5,678           197,495   X   123            126,200      1,000      70,295

 HEALTHSOUTH CVT SUB DEBS       CV BND   421924AF8     111,400         1,366,874   X   12356        1,304,078     45,050      17,746

 HEALTHSOUTH CORP               COMMON   421924101      77,419         7,462,040   X   123          4,670,725    109,300   2,682,015

 HEALTH MGMT ASSOC              COMMON   421933102           6               500   X   123                                       500

 HEALTHCARE REALTY TRUST        COMMON   421946104      11,229           591,019   X   123            490,558                100,461

 HEARTPORT INC CVT SUB NTS      CV BND   421969AC0      16,969           282,819   X   123            255,194     20,719       6,906

 HEALTHCARE FINL PARTNERS       COMMON   42219W108       8,971           343,400   X   123            271,600                 71,800

 HEARST ARGLE TELEVISION INC    COMMON   422317107      12,578           510,800   X   123            420,700                 90,100

 HEFTEL BROADCASTING CORP       COMMON   422799106          74             1,700   X   123              1,700                       

 HEINZ H J                      COMMON   423074103         325             6,852   X   123                300                  6,552

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  12        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 HERSHEY FOODS CORP             COMMON   427866108         600            10,700   X   123              3,500                  7,200

 HERTZ CORP CL A                COMMON   428040109       4,620            86,350   X   123             57,850                 28,500

 HEWLETT-PACKARD CO             COMMON   428236103     128,781         1,899,061   X   123          1,122,735      6,700     769,626

 HEXCEL SUB DEB CONV            CV BND   428290AA8      39,619           542,727   X   123            469,162     67,544       6,021

 HEXCEL CORP CVT SUB NTS        CV BND   428291AA6      77,019           927,939   X   123            762,540    133,774      31,625

 HI/FN INC                      COMMON   428358105       6,788           181,000   X   123            147,700                 33,300

 HIBERNIA CORP LA CL A          COMMON   428656102          26             2,000   X   123                                     2,000

 HIGHWOOD PPTYS INC             COMMON   431284108           4               150   X   123                150                       

 HILLENBRAND INDUSTRIES         COMMON   431573104         111             2,400   X   123                800                  1,600

 HINES HORTICULTURE INC         COMMON   433245107           5               600   X   123                                       600

 HOLLYWOOD PARK INC             COMMON   436255103           5               475   X   123                475                       

 HOLOGIC INC                    COMMON   436440101           8               870   X   123                                       870

 HOME DEPOT INC                 COMMON   437076102      64,141         1,030,382   X   123            520,640                509,742

 HOMESTAKE MINING               COMMON   437614100           9             1,000   X   123                                     1,000

 HON INDUSTRIES                 COMMON   438092108       4,881           222,500   X   123            188,100                 34,400

 HONEYWELL                      COMMON   438506107       1,375            18,136   X   123              5,300      4,400       8,436

 HORACE MANN EDUCATORS          COMMON   440327104       8,969           386,800   X   123            320,200                 66,600

 HOUGHTON MIFFLIN CO            COMMON   441560109          56             1,200   X   123              1,200                       

 HOUSEHOLD INTL INC             COMMON   441815107       6,572           144,036   X   123             72,469                 71,567

 HUBBELL INC CL B               COMMON   443510201         903            22,567   X   123              4,555                 18,012

 HUFFY CORP                     COMMON   444356109       1,518           126,500   X   123             75,900                 50,600

 HUMANA INC                     COMMON   444859102       3,424           198,500   X   123            126,900                 71,600

 HUNT (JB) TRANSPORT SVCS       COMMON   445658107       7,214           343,500   X   123            282,600                 60,900

 HUNTINGTON BANCSHARES          COMMON   446150104       2,182            70,520   X   123             44,720                 25,800

 HUSSMANN INTERNATIONAL INC     COMMON   448110106      11,363           773,600   X   123            632,600                141,000

 HVIDE CAP TR CNV PFD 144A 6.5% CV PFD   448513200          20             1,754   X   123              1,754                       

 HVIDE CAPITAL TR 6.5% CVT PFD  CV PFD   448513408      21,643         1,881,958   X   12345        1,703,664    130,059      48,235

 IBP INC                        COMMON   449223106         767            41,200   X   123             23,300                 17,900

 ICOS CORPORATION               COMMON   449295104       9,896           293,200   X   123            232,600                 60,600

 IMC GLOBAL INC                 COMMON   449669100      30,628         1,498,600   X   123            955,100     22,000     521,500

 IMS HEALTH INC                 COMMON   449934108      22,610           682,558   X   123            413,450                269,108

 ISS GROUP INC                  COMMON   450306105       9,150           115,100   X   123             94,900                 20,200

 ITI TECHNOLOGIES INC           COMMON   450564109       3,225           107,500   X   123             79,500                 28,000

 ITLA CAPITAL CORP              COMMON   450565106          51             3,500   X   123              3,500                       

 ITT EDUCATIONAL SVCS           COMMON   45068B109      14,646           389,900   X   123            317,400                 72,500

 ITT INDS INC                   COMMON   450911102          24               679   X   123                379                    300

 IDACORP INC                    COMMON   451107106       2,323            78,900   X   123             61,600                 17,300

 IKON OFFICE SOLUTIONS INC      COMMON   451713101           5               400   X   123                400                       

 ILLINOIS TOOL WORKS INC        COMMON   452308109       1,542            24,925   X   123              5,900                 19,025

 IMATION CORP                   COMMON   45245A107          23             1,370   X   123                589                    781

 IMAR CORP                      COMMON   45245C103                            86   X   123                                        86

 IMMUNEX CORP                   COMMON   452528102          58               700   X   123                600                    100

 IMPERIAL BANCORP               COMMON   452556103          74             4,320   X   123              4,320                       

 IMPERIAL CREDIT INDUSTRIES     COMMON   452729106       7,910         1,081,702   X   123            876,402                205,300

 INCO LTD CVT DEBS              CV BND   453258AH8      13,804           156,861   X   12356          156,861                       

 INFOSEEK CORP                  COMMON   45678M107          52               700   X   123                700                       

 INGERSOLL RAND CO              COMMON   456866102       3,752            75,601   X   123             75,000                    601

 INFORMATION RESOURCES INC      COMMON   456905108       5,078           788,700   X   123            649,900                138,800

 INGRAM MICRO CVT DEBS          CV BND   457153AB0         841            27,471   X   1235            27,471                       

 INKTOMI CORP                   COMMON   457277101       1,183            13,800   X   123             13,800                       

 INTEGRATED MEASUREMENT SYSTEM  COMMON   457923100         203            28,000   X   123             28,000                       

 INTEGRATED DEVICE SUB CVT NTS  CV BND   458118AA4      66,444           977,123   X   123            788,831    169,079      19,213

 INTEGRATED PROCESS CVT SUB NTS CV BND   45812KAD0       4,936            64,102   X   123             64,102                       

 INTEGRATED SYSTEMS INC         COMMON   45812M104       2,310           180,300   X   123            135,200                 45,100

 INTEL CORP                     COMMON   458140100     112,667           947,776   X   123            447,619      6,200     493,957

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  13        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 INTER-TEL INC                  COMMON   458372109       5,870           377,200   X   123            311,900                 65,300

 INTERFACE INC                  COMMON   458665106          21             2,200   X   123              2,200                       

 INTERFACE SYS INC              COMMON   458667102           6             3,162   X   123                                     3,162

 INTERMET CORP                  COMMON   45881K104       8,636           645,700   X   123            541,500                104,200

 IBM CORP                       COMMON   459200101     252,159         1,422,616   X   123            898,473      4,100     520,043

 INTL FLAV & FRAG               COMMON   459506101          43             1,150   X   123                                     1,150

 INTL HOME FOODS INC            COMMON   459655106       6,049           376,600   X   123            314,400                 62,200

 INTL GAME TECH                 COMMON   459902102          20             1,375   X   123              1,375                       

 INTL MULTIFOODS CORP           COMMON   460043102      16,736           717,900   X   123            590,800                127,100

 INTL PAPER                     COMMON   460146103         124             2,940   X   123                550                  2,390

 INTERPUBLIC GROUP COS          COMMON   460690100          64               824   X   123                                       824

 INTERSTATE ENERGY CORP         COMMON   460845100          28             1,040   X   123              1,040                       

 INTEVAC INC CVT SUB NTS        CV BND   461148AC2      28,781           571,338   X   123            478,248     48,485      44,605

 INTUIT INC                     COMMON   461202103       2,859            28,100   X   123             22,000                  6,100

 INVACARE CORP                  COMMON   461203101      12,178           500,900   X   123            407,800                 93,100

 AMERICAN FDS IVEST CO OF AMER  COMMON   461308108       1,031            32,706   X   123                                    32,706

 ITEX CORP                      COMMON   465647204           5             2,000   X   123              2,000                       

 IVILLAGE INC                   COMMON   46588H105          90               900   X   123                900                       

 MACKENZIE IVY INTL FD CL A     COMMON   465903102       1,748            41,241   X   123                                    41,241

 JDN REALTY CORP                COMMON   465917102          15               750   X   123                                       750

 JACOBSON'S STORE SUB CONV DEB  CV BND   469834AC9      14,749           186,700   X   12356          180,274                  6,426

 JANUS FUND                     COMMON   471023101          94             2,496   X   123              2,496                       

 JANUS GLOBAL TECH FUND         COMMON   471023663          75             5,752   X   123                                     5,752

 JEFFERSON PILOT                COMMON   475070108       9,326           137,650   X   123            111,200                 26,450

 JOHNSON & JOHNSON              COMMON   478160104      21,265           227,435   X   123            115,302      4,600     107,533

 JOHNSON CONTROLS               COMMON   478366107          22               358   X   123                                       358

 JONES APPAREL GRP INC          COMMON   480074103          14               500   X   123                                       500

 JONES INTERCABLE INC -A        COMMON   480206200         883            22,400   X   123             22,400                       

 JONES PHARMA INC               COMMON   480236108      13,942           401,200   X   123            330,800                 70,400

 JOSTENS INC                    COMMON   481088102      11,547           543,400   X   123            437,400                106,000

 KLA-TENCOR CORPORATION         COMMON   482480100          49             1,000   X   123              1,000                       

 K MART                         COMMON   482584109      90,888         5,405,845   X   123          3,281,340      4,700   2,119,805

 KAMAN CORP SUB DEB CONV        CV BND   483548AC7       7,527            79,234   X   123             79,234                       

 KANSAS CITY PWR & LT           COMMON   485134100           5               200   X   123                                       200

 KANSAS CITY SOUTHN INDS INC    COMMON   485170104         342             6,000   X   123              6,000                       

 KEANE INC                      COMMON   486665102       2,451           115,020   X   123             75,300                 39,720

 KELLOGG CO                     COMMON   487836108          74             2,200   X   123                                     2,200

 KENNAMETAL                     COMMON   489170100          18             1,000   X   123                                     1,000

 KENT ELECTRONIC SUB DEB CVT    CV BND   490553AA2     135,750         1,859,593   X   12346        1,700,094    101,958      57,541

 KERR MCGEE CORP                COMMON   492386107       1,306            39,799   X   1234            12,869                 26,930

 KEY ENERGY GRP CVT SUB NTS     CV BND   492914AF3      70,284         1,398,677   X   123          1,201,538    171,556      25,583

 KEYCORP (NEW)                  COMMON   493267108         635            20,958   X   123              8,204                 12,754

 KIMBERLY CLARK                 COMMON   494368103     113,932         2,376,663   X   123          1,458,104     18,300     900,259

 KNIGHT RIDDER INC              COMMON   499040103          30               600   X   123                                       600

 KNIGHT/TRIMARK GROUP -A        COMMON   499067106       2,298            34,300   X   123             22,600                 11,700

 KOHLS CORP                     COMMON   500255104      25,852           364,760   X   123            255,710      6,200     102,850

 KONINKLIJKE PHILIPS EL-NY SH   COMMON   500472105     122,694         1,488,316   X   123          1,088,105      1,800     398,411

 KOS PHARMACEUTICALS INC        COMMON   500648100          28             5,000   X   123              5,000                       

 KROGER                         COMMON   501044101     204,067         3,408,215   X   123          2,178,702     21,900   1,207,613

 KULICKE & SOFFA INDS           COMMON   501242101       6,489           257,000   X   123            201,800                 55,200

 LTX CORP SUB DEB CONV          CV BND   502392AA1      17,018           378,168   X   123            225,001    130,556      22,611

 L-3 COMMUNICATIONS CORP        COMMON   502424104          46             1,000   X   123              1,000                       

 LABOR READY INC                COMMON   505401208      12,281           470,100   X   123            384,000                 86,100

 LADD FURNITURE INC             COMMON   505739201       1,004            58,600   X   123             44,200                 14,400

 LAGUNA HILLS UTIL CO           COMMON   507205102          43             2,000   X   123                                     2,000

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  14        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 LAM RESEARCH SUB DEB CONV      CV BND   512807AC2      99,733         1,187,297   X   123456       1,092,477     64,637      30,183

 LAMAR ADVERTISING CO           COMMON   512815101       5,123           150,950   X   123            143,350                  7,600

 LANDS' END                     COMMON   515086106          14               400   X   123                                       400

 LASON INC                      COMMON   51808R107      15,472           275,050   X   123            226,250                 48,800

 LEAP WIRELESS INTL INC         COMMON   521863100          15             1,193   X   123                318                    875

 LEARNING COMPANY INC           COMMON   522008101      88,368         3,047,175   X   1235         2,551,078    496,097            

 LECROY CORP                    COMMON   52324W109          68             4,400   X   123              3,600                    800

 LEGGETT & PLATT INC            COMMON   524660107       3,426           171,300   X   123             93,550                 77,750

 LEHMAN BROS HOLDING INC        COMMON   524908100           7               120   X   123                                       120

 LEVEL 3 COMMUNICATIONS INC     COMMON   52729N100          51               700   X   123                700                       

 LEXMARK INTL GRP INC CL A      COMMON   529771107      42,342           378,475   X   123            262,950        300     115,225

 LIBERTY ALL STAR EQUITY FD     COMMON   530158104         170            13,282   X   123                                    13,282

 LIBERTY PPTY TRUST             COMMON   531172104      15,974           769,822   X   123            627,600                142,222

 LILLY ELI                      COMMON   532457108      32,619           384,317   X   123            202,310     12,160     169,847

 LILLY INDUSTRIES INC           COMMON   532491107       1,073            69,200   X   123             53,900                 15,300

 LIMITED INC                    COMMON   532716107         280             7,062   X   123              7,062                       

 LINCOLN ELECTRIC HOLDINGS      COMMON   533900106         248            13,300   X   123             12,500                    800

 LINCOLN NATL CORP              COMMON   534187109       2,937            29,700   X   123             20,800                  8,900

 LINENS N THINGS INC            COMMON   535679104      20,314           447,700   X   123            367,600                 80,100

 LITCHFIELD FINANCIAL CORP      COMMON   536619109       2,453           144,300   X   123            106,800                 37,500

 LITTON INDS INC                COMMON   538021106      84,429         1,454,095   X   123            940,020      1,000     513,075

 LIZ CLAIBORNE                  COMMON   539320101       9,037           277,000   X   123            222,100                 54,900

 LOCAL FINL CORP                COMMON   539553107       4,589           492,700   X   123            397,300                 95,400

 LOCKHEED MARTIN CORP           COMMON   539830109       1,581            41,870   X   123             37,600                  4,270

 LOEWS CORP CVT SUB NTS         CV BND   540424AL2     349,510         4,099,825   X   123          3,858,193                241,632

 LOEWS CORP                     COMMON   540424108         142             1,900   X   123                600                  1,300

 LOMAS FINL SR CONV NT          CV BND   541535AA8          14               819   X   123                819                       

 LOMAS FINL CORP                COMMON   541535100                         4,267   X   123              4,267                       

 LONGLEAF PARTNERS SM CAP FD    COMMON   543069207          36             1,705   X   123                                     1,705

 LS GROWTH FUND I               COMMON   543487102       4,615           410,198   X   123            100,865                309,333

 LS CORE VALUE FUND I           COMMON   543487201      31,969         1,839,430   X   123             73,560              1,765,870

 LS SMALL CAP VALUE FUND I      COMMON   543487300      82,228         5,113,680   X   123          2,480,293          6   2,633,381

 LS INTL EQUITY FUND I          COMMON   543487409      40,361         3,470,451   X   123          2,414,409      3,264   1,052,778

 LS MID CAP GROWTH FUND I       COMMON   543487797         364            23,153   X   123             20,219                  2,934

 LS MID CAP VALUE FUND I        COMMON   543487813       1,406           132,671   X   123             24,292                108,379

 LS SMALL CAP GROWTH FUND I     COMMON   543487854       6,099           437,171   X   123            304,261                132,910

 LS WORLDWIDE FUND I            COMMON   543487870          36             3,769   X   123                                     3,769

 LS CORE GROWTH FUND            COMMON   543495402      24,580         1,883,496   X   123             63,970              1,819,526

 LOUISIANA-PACIFIC CORP         COMMON   546347105          99             5,300   X   123              1,800                  3,500

 LOWES COS                      COMMON   548661107       2,231            36,876   X   123                                    36,876

 LUBRIZOL CORP                  COMMON   549271104           5               200   X   123                                       200

 LUBY'S INC                     COMMON   549282101       3,065           181,600   X   123            133,100                 48,500

 LUCENT TECHNOLOGIES INC        COMMON   549463107      10,139            93,876   X   123             32,666                 61,210

 LUNAR CORP                     COMMON   550362107           2               300   X   123                                       300

 LYCOS INC                      COMMON   550818108          34               400   X   123                400                       

 M & T BANK CORP                COMMON   55261F104         565             1,180   X   123                640                    540

 MBIA INC                       COMMON   55262C100       3,990            68,800   X   123             44,900                 23,900

 MBNA CORP                      COMMON   55262L100      28,064         1,175,440   X   123            505,690                669,750

 MITSUBISHI BK LTD - BOT CONV   CV BND   55262XAA2      41,792           372,313   X   123            372,313                       

 MCN ENERGY GROUP INC           COMMON   55267J100      14,874           926,000   X   123            742,700                183,300

 MCI WORLDCOM INC               COMMON   55268B106     109,783         1,239,609   X   123            746,189      3,000     490,420

 MDU RESOURCES GROUP INC        COMMON   552690109         244            10,675   X   123                                    10,675

 MGIC INVT CORP WIS             COMMON   552848103         535            15,260   X   123              1,900                 13,360

 M A R C INC                    COMMON   552914103           1               102   X   123                                       102

 MMC NETWORKS INC               COMMON   55308N102       3,286           205,400   X   123            160,400                 45,000

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  15        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 MACROMEDIA INC                 COMMON   556100105      15,787           348,400   X   123            281,900                 66,500

 MAGNA INTL INC CL A            COMMON   559222401       5,893           101,540   X   123             67,290                 34,250

 MALEX INC                      COMMON   561135104                            86   X   123                                        86

 MANPOWER INC                   COMMON   56418H100          23             1,002   X   123                                     1,002

 MARCUS CORP                    COMMON   566330106       1,246           103,825   X   123             33,050                 70,775

 MARKET FACTS INC               COMMON   570559104       1,032            46,900   X   123             36,800                 10,100

 MARSH & MCLENNAN               COMMON   571748102       2,673            35,997   X   123              4,599                 31,398

 MARSHALL & ILSLEY              COMMON   571834100       2,980            53,746   X   123             28,600      1,000      24,146

 MARRIOTT INTL -CL A            COMMON   571903202         259             7,704   X   123              5,200                  2,504

 MARTIN MARIETTA MATERIALS      COMMON   573284106         354             6,200   X   123              2,700                  3,500

 MASCO CORP                     COMMON   574599106     109,385         3,872,032   X   123          2,554,902     50,900   1,266,230

 MASCOTECH INC SUB DEBS CVT     CV BND   574670AB1      19,741           258,056   X   123            247,573     10,483            

 MASCOTECH INC                  COMMON   574670105       9,911           639,390   X   123            512,650                126,740

 MATSUSHITA ELEC INDL LTD ADR   COMMON   576879209          50               260   X   123                                       260

 MATTEL INC                     COMMON   577081102       6,936           278,134   X   123            245,400      4,687      28,047

 MAXIM INTEGRATED PRODUCTS      COMMON   57772K101          22               400   X   123                400                       

 MAXTOR CORP SUB DEB CONV       CV BND   577729AA4     130,545         1,740,600   X   1234         1,494,625    194,375      51,600

 MAXWELL TECHNOLOGIES INC       COMMON   577767106       4,556           194,900   X   123            143,800                 51,100

 MAY DEPT STORES                COMMON   577778103         569            14,550   X   123              7,050                  7,500

 MCDERMOTT INTL                 COMMON   580037109          10               400   X   123                400                       

 MCDONALDS CORP                 COMMON   580135101      24,847           548,338   X   123            416,654      2,000     129,684

 MCGRAW HILL COS INC            COMMON   580645109         388             7,114   X   123              2,750                  4,364

 MCKESSON HBOC INC              COMMON   58155Q103       1,409            21,346   X   123              2,300                 19,046

 MEAD CORP                      COMMON   582834107         351            11,400   X   123              8,200                  3,200

 MEADOWBROOK INSURANCE GROUP    COMMON   58319P108          75             5,000   X   123              5,000                       

 MEDAPHIS CORP                  COMMON   584028104       2,938         1,204,900   X   123            990,600                214,300

 MEDCO RESEARCH INC             COMMON   584059109          26             1,000   X   123              1,000                       

 MEDIAONE GROUP INC             COMMON   58440J104         585             9,224   X   123                824                  8,400

 MEDICAL ASSURANCE INC          COMMON   58449U100       9,663           345,120   X   123            282,140                 62,980

 COLUMBIA/HCA CVT SUB DEBS      CV BND   584505AC5      25,940           312,531   X   123            217,021     91,865       3,645

 MEDIMMUNE INC                  COMMON   584699102       1,711            28,900   X   123             28,900                       

 MEDQUIST INC                   COMMON   584949101      14,559           485,300   X   123            396,900                 88,400

 MEDITRUST CORP - PAIRED STK    COMMON   58501T306       8,361           672,193   X   123            494,368                177,825

 MEDTRONIC INC                  COMMON   585055106      55,583           773,322   X   123            505,340      3,200     264,782

 MELLON BANK CORP               COMMON   585509102         853            12,120   X   123              9,090                  3,030

 MERCANTILE BANCORPORATION      COMMON   587342106         309             6,500   X   123              6,500                       

 MERCK & CO                     COMMON   589331107      51,280           640,001   X   123            361,984     15,800     262,217

 MERCURY INTERACTIVE CORP       COMMON   589405109      14,018           393,500   X   123            322,000                 71,500

 MERISTAR HOSPITALITY CORP      COMMON   58984Y103       8,644           475,284   X   123            387,873                 87,411

 MERIT MEDICAL SYSTEMS          COMMON   589889104           1               200   X   123                200                       

 MERRILL LYNCH EUROFUND CL B    COMMON   589922103          78             5,557   X   123                                     5,557

 MERRILL LYNCH GLOBAL B         COMMON   589939206         141            10,712   X   123                                    10,712

 MERITOR AUTOMOTIVE INC         COMMON   59000G100           1                66   X   123                 66                       

 MERRILL LYNCH & CO             COMMON   590188108          89             1,006   X   123                                     1,006

 MERRILL LYNCH PACIFIC FUND-B   COMMON   590906202          49             2,663   X   123                                     2,663

 METAL MANAGEMENT INC           COMMON   591097100           5             3,000   X   123              3,000                       

 METALS USA INC                 COMMON   591324108          26             3,000   X   123                                     3,000

 METROMEDIA FIBER NETWORK -A    COMMON   591689104       1,668            32,200   X   123             32,200                       

 METROWEST BANK/MASS            COMMON   592668107          12             2,000   X   123                                     2,000

 UNITED MEXICAN STS WTS          WTS     593048119       1,278            35,000   X   1235            23,150      8,850       3,000

 MICHAEL FOODS INC NEW          COMMON   594079105      16,399           860,250   X   123            704,850                155,400

 MICHAELS STORES INC            COMMON   594087108       2,318            93,900   X   123             69,600                 24,300

 MICROSOFT CORP                 COMMON   594918104      40,093           447,338   X   123            207,462                239,876

 MIDAMERICAN ENERGY HLDGS       COMMON   59562V107          28             1,000   X   123              1,000                       

 MIDAS INC                      COMMON   595626102          25               763   X   123                531                    232

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  16        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 MIDWEST EXPRESS HLDGS          COMMON   597911106         198             6,750   X   123                                     6,750

 MILACRON INC                   COMMON   598709103       6,572           417,250   X   123            339,850                 77,400

 MILLER (HERMAN) INC            COMMON   600544100      11,197           613,550   X   123            534,400                 79,150

 MILLIPORE CORP                 COMMON   601073109         275            11,400   X   123              9,800                  1,600

 MINERALS TECHNOLOGIES INC      COMMON   603158106      10,565           220,100   X   123            181,300                 38,800

 MINIMED INC                    COMMON   60365K108      14,583           143,500   X   123            117,700                 25,800

 MINNESOTA MNG & MFG            COMMON   604059105       5,230            73,920   X   123             19,580      3,000      51,340

 MIRAGE RESORTS INC             COMMON   60462E104          80             3,750   X   123              3,750                       

 MOBIL CORP                     COMMON   607059102      12,178           138,392   X   123             63,666      3,000      71,726

 MODIS PROFESSIONAL SVCS        COMMON   607830106          63             7,000   X   123              7,000                       

 MOLEX INC CL A                 COMMON   608554200       2,668           103,103   X   123             87,772                 15,331

 MONSANTO CO                    COMMON   611662107       9,995           217,580   X   123            161,450      7,300      48,830

 MONTANA POWER CO               COMMON   612085100         119             1,612   X   123              1,600                     12

 MONY GROUP INC                 COMMON   615337102          19               776   X   123                                       776

 MORAN ENERGY SUB DEB CONV      CV BND   616457AC1      18,807           206,671   X   123            158,210     48,461            

 MORGAN JP & CO                 COMMON   616880100         286             2,315   X   123                                     2,315

 MORGAN ST DEAN WITTER & CO     COMMON   617446448      73,402           734,476   X   123            433,550      6,400     294,526

 MORRISON HEALTHCARE INC        COMMON   61841L108       7,109           397,716   X   123            293,650                104,066

 MORTON INTL INC                COMMON   619335102       4,307           117,200   X   123             60,950                 56,250

 MOTHERS WORK INC               COMMON   619903107          21             2,012   X   123              1,924                     88

 MOTOROLA INC                   COMMON   620076109       4,192            57,232   X   123             35,566                 21,666

 MIT FD UNIT CTF SER 7 CALIF    COMMON   626233134           2                15   X   123                                        15

 MUTUAL SHARES FUND             COMMON   628380107          33             1,633   X   123                                     1,633

 MUTUAL QUALIFIED FUND          COMMON   628380206         280            16,503   X   123                                    16,503

 MYLAN LABS                     COMMON   628530107         229             8,350   X   123              1,100                  7,250

 NABI INC SUB CONV NTS          CV BND   628716AB8     147,922         2,083,411   X   123          1,751,412    187,499     144,500

 NCR CORP                       COMMON   62886E108           4                74   X   123                 74                       

 NTL INC P/P 144A CVT SUB NTS   CV BND   629407AK3       2,482            16,327   X   123             16,327                       

 NABORS INDS INC                COMMON   629568106         455            25,000   X   123              7,000                 18,000

 NALCO CHEM                     COMMON   629853102           4               150   X   123                150                       

 NATIONAL AUTO CREDIT INC       COMMON   632900106           5             4,637   X   123              4,637                       

 NATIONAL CITY CORP             COMMON   635405103      64,690           974,615   X   123            547,308                427,307

 NATIONAL COMPUTER SYS INC      COMMON   635519101       7,953           324,600   X   123            267,400                 57,200

 NATIONAL HEALTH REALTY INC     COMMON   635905102           6               500   X   123                                       500

 NATIONAL HEALTHCARE CORP       COMMON   635906100           4               500   X   123                                       500

 NATIONAL FUEL GAS CO           COMMON   636180101          12               300   X   123                300                       

 NATIONAL HEALTH INVESTORS      COMMON   63633D104          11               500   X   123                                       500

 NATL SEMICONDUCTOR CVT SUB DEB CV BND   637640AB9      43,601           525,310   X   12356          430,646     39,736      54,928

 NATIONAL SEMICONDUCTOR CORP    COMMON   637640103         220            23,600   X   123             23,600                       

 NATL SVC INDS                  COMMON   637657107       4,956           145,500   X   123            129,700                 15,800

 NATIONWIDE FINANCIAL SVCS      COMMON   638612101          21               500   X   123                500                       

 NEIMAN MARCUS GRP              COMMON   640204103       1,358            60,000   X   123                        60,000            

 NEMATRON CORP                  COMMON   640441101           2             1,054   X   123                                     1,054

 NETWORKS ASSOCIATES INC        COMMON   640938106      34,172         1,113,535   X   123            761,652     21,524     330,359

 NESTLE S ASPONS ADR FOR REG    COMMON   641069406          27               300   X   123                                       300

 NETWORK APPLIANCE INC          COMMON   64120L104         567            11,200   X   123             11,200                       

 NEW CENTURY ENERGIES INC       COMMON   64352U103          78             2,300   X   123                300                  2,000

 NEW ENGLAND ELEC SYS           COMMON   644001109          81             1,672   X   123                                     1,672

 NEW ENGLAND BALANCED FUND -Y   COMMON   644036758      10,675           804,456   X   123            804,456                       

 NEW ERA OF NETWORKS INC        COMMON   644312100      12,520           184,800   X   123            151,200                 33,600

 NEW JERSEY RESOURCES           COMMON   646025106       5,971           167,900   X   123            133,900                 34,000

 NEW YORK TIMES CL A            COMMON   650111107         181             6,360   X   123                                     6,360

 NEWELL RUBBERMAID INC          COMMON   651229106     106,997         2,252,559   X   123          1,155,610      2,000   1,094,949

 NEWFIELD EXPLORATION CO        COMMON   651290108       9,055           400,200   X   123            326,700                 73,500

 NEWMONT MNG                    COMMON   651639106          26             1,500   X   123                                     1,500

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  17        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 NEWPORT NEWS SHIPBUILDING      COMMON   652228107      11,395           359,600   X   123            291,400                 68,200

 NEXTEL COMMUNICATIONS CL A     COMMON   65332V103         466            12,710   X   123                                    12,710

 NIAGRA MOHAWK HLDGS            COMMON   653520106       9,556           711,120   X   123            591,200                119,920

 NICHOLAS FUND                  COMMON   653735100         254             2,978   X   123                                     2,978

 NICHOLAS LTD EDITION INC       COMMON   653738104       1,730            80,078   X   123                                    80,078

 NICHOLAS FUND II INC           COMMON   653740100         725            21,030   X   123             21,030                       

 NICHOLS RESEARCH CORP          COMMON   653818104       5,792           306,850   X   123            254,900                 51,950

 NIELSEN MEDIA RESEARCH         COMMON   653929307      14,074           570,066   X   123            468,233                101,833

 NIKE INC CL B                  COMMON   654106103          40               700   X   123                                       700

 NINE WEST GROUP                COMMON   65440D102       3,479           140,900   X   123             94,500                 46,400

 99 CENTS ONLY STORES           COMMON   65440K106      14,210           334,850   X   123            274,500                 60,350

 NOKIA CORP SPON ADR A          COMMON   654902204         607             3,900   X   123              3,400                    500

 NOBLE DRILLING                 COMMON   655042109       6,158           354,411   X   123            242,064                112,347

 NORAM ENERGY CVT SUB DEBS      CV BND   655419AC3       8,603            90,087   X   123             80,303                  9,784

 NORDSTROM INC                  COMMON   655664100         797            19,500   X   123              5,300     11,800       2,400

 NORFOLK SOUTHN CORP            COMMON   655844108       1,456            55,198   X   123             35,348      4,000      15,850

 NORTH CAROLINA NATURAL GAS     COMMON   658221106          41             1,350   X   123                                     1,350

 NORTHERN STATES POWER- MN      COMMON   665772109          93             4,000   X   123                                     4,000

 NORTHERN TELECOM LTD           COMMON   665815106         522             8,400   X   123              4,000                  4,400

 NORTHERN TR CORP               COMMON   665859104      15,125           170,300   X   123            105,400                 64,900

 NORTHROP GRUMMAN CORP          COMMON   666807102     120,810         2,017,705   X   123          1,235,405      1,500     780,800

 NOVARTIS AG SPON ADR           COMMON   66987V109           9               106   X   123                                       106

 NOVELLUS SYSTEMS               COMMON   670008101       1,130            20,500   X   123             20,500                       

 NU SKIN ENTERPRISES -A         COMMON   67018T105       4,257           186,100   X   123            124,600                 61,500

 NUCOR CORP                     COMMON   670346105          35               800   X   123                                       800

 OGE ENERGY CORP                COMMON   670837103          45             2,000   X   123                                     2,000

 OM GROUP INC                   COMMON   670872100       7,775           235,600   X   123            203,100                 32,500

 NUVEEN MICH QUALITY INC MUNI   COMMON   670979103         152             9,100   X   123                                     9,100

 NUVEEN MICH PREMIUM INC        COMMON   67101Q109         121             7,959   X   123                                     7,959

 OCCIDENTAL PETE                COMMON   674599105         451            25,074   X   123                                    25,074

 OFFICEMAX INC                  COMMON   67622M108         303            35,100   X   123             11,700                 23,400

 OFFICE DEPOT                   COMMON   676220106       6,721           179,525   X   123            114,325                 65,200

 OGDEN CORP SUB DEB CVT         CV BND   676346AC3       4,089            43,504   X   123                                    43,504

 OGDEN CORP SUB DEB CONV EURO   CV BND   676346AD1       3,603            38,537   X   123             16,754                 21,783

 OHIO CASUALTY CORP             COMMON   677240103       2,178            55,848   X   123                                    55,848

 OLIN CORP                      COMMON   680665205           7               650   X   123                450                    200

 OMNICOM GROUP                  COMMON   681919106      90,480         1,131,879   X   123            710,710      6,100     415,069

 OMEGA HEALTHCARE INVESTORS     COMMON   681936100       1,334            58,174   X   123             46,400                 11,774

 OPTICAL COATING LAB            COMMON   683829105      13,546           282,200   X   123            230,100                 52,100

 ORACLE CORP                    COMMON   68389X105          42             1,575   X   123              1,575                       

 OPPENHEIMER GLOBAL FD CL A     COMMON   683924104          20               457   X   123                                       457

 ORBITAL SCIENCES CORP          COMMON   685564106      10,011           352,800   X   123            290,700                 62,100

 ORGANOGENESISINC               COMMON   685906109          23             1,952   X   123              1,952                       

 O'REILLY AUTOMOTIVE INC        COMMON   686091109          67             1,500   X   123              1,500                       

 OSTEOTECH INC                  COMMON   688582105      11,172           325,000   X   123            263,800                 61,200

 OUTBACK STEAKHOUSE INC         COMMON   689899102       1,980            60,450   X   123             44,850                 15,600

 OUTDOOR SYSTEMS INC            COMMON   690057104          87             2,900   X   123              2,900                       

 OWENS CORNING                  COMMON   69073F103           6               200   X   123                                       200

 OWENS CORNING CAP LLC CVT PFD  CV PFD   690733209       6,912           154,033   X   123            133,211      5,134      15,688

 OWENS-ILLINOIS INC             COMMON   690768403      21,686           867,450   X   123            462,300                405,150

 PECO ENERGY CO                 COMMON   693304107       8,102           175,180   X   123            154,000                 21,180

 P G & E CORP                   COMMON   69331C108          73             2,350   X   123              2,200                    150

 P F CHANGS CHINA BISTRO INC    COMMON   69333Y108          15               500   X   123                                       500

 PIMCO ADVISORS HOLDINGS LP     COMMON   69338P102          55             1,753   X   123                                     1,753

 PIMCO HIGH YIELD FUND C        COMMON   693390353         105             9,325   X   123                                     9,325

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  18        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 PMC -SIERRA INC                COMMON   69344F106       1,039            14,600   X   123             14,600                       

 THE PMI GROUP                  COMMON   69344M101       3,631            78,300   X   123             49,300                 29,000

 PNC BANK CORP                  COMMON   693475105     177,976         3,203,135   X   123          1,804,535      1,300   1,397,300

 PP&L RESOURCES INC             COMMON   693499105          25             1,000   X   123              1,000                       

 PPG INDS                       COMMON   693506107         725            14,150   X   123             11,350                  2,800

 PRI AUTOMATION INC             COMMON   69357H106       5,483           261,100   X   123            213,700                 47,400

 PACIFIC BANK N A               COMMON   694026204       3,883           184,900   X   123            140,800                 44,100

 PACIFIC GULF PPTYS             COMMON   694396102       7,565           420,300   X   123            345,000                 75,300

 PACIFIC SUNWEAR OF CALIF       COMMON   694873100      19,269           554,500   X   123            453,200                101,300

 PACIFICORP (ORE)               COMMON   695114108         337            19,508   X   123              3,000                 16,508

 PAINE WEBBER GRP INC           COMMON   695629105      24,889           624,175   X   123            319,725      1,800     302,650

 PW EQUITY PTNRS LTD L          COMMON   69574C104          12             1,000   X   123                                     1,000

 PW EQUITY PTNRS LTD 2          COMMON   69574C203          14            57,000   X   123              7,000                 50,000

 PW EQUITY PTNRS 3              COMMON   69574C302          13                55   X   123                                        55

 PAINEWEBBER GEODYNE ENERGY IIE COMMON   695923862          11               500   X   123                                       500

 PW GEODYNE ENERGY PTNR 11C     COMMON   695923888          15               750   X   123                                       750

 PAIRGAIN TECH INC              COMMON   695934109      10,430         1,069,700   X   123            891,800                177,900

 PALL CORP                      COMMON   696429307         149             9,000   X   123              9,000                       

 PAPA JOHN'S INTL INC           COMMON   698813102      17,493           396,450   X   123            320,450                 76,000

 PARAMETRIC TECH CORP           COMMON   699173100          63             3,200   X   123              1,200                  2,000

 PARK ELECTROCHEM CVT SUB NTS   CV BND   700416AB6      63,446           733,475   X   123            627,880     87,818      17,777

 PATRIOT AMER HOSPITALITY       COMMON   703352203           1               200   X   123                                       200

 PAYCHEX INC                    COMMON   704326107      31,369           661,254   X   123            309,504     10,500     341,250

 PENNEY J C CO INC              COMMON   708160106         108             2,677   X   123                777                  1,900

 PENTAIR INC                    COMMON   709631105      14,297           423,610   X   123            331,300                 92,310

 PENTEGRA DENTAL GROUP          COMMON   709637102         521           308,400   X   123            239,400                 69,000

 PEOPLESOFT INC                 COMMON   712713106          22             1,500   X   123              1,500                       

 PEPSICO INC                    COMMON   713448108      26,656           680,208   X   123            369,822     13,000     297,386

 PERKIN ELMER CORP              COMMON   714041100      23,014           237,100   X   123            105,500                131,600

 PHARMACIA & UPJOHN INC         COMMON   716941109         704            11,286   X   123             10,786                    500

 PFIZER INC                     COMMON   717081103     140,439         1,012,171   X   123            537,994     12,700     461,477

 PHILADELPHIA SUBURBAN CORP     COMMON   718009608          23             1,000   X   123                                     1,000

 PHILIP MORRIS COS INC          COMMON   718154107      73,917         2,100,620   X   123          1,287,010     22,800     790,810

 PHILIPPINE LG DIST TEL CVT PFD CV PFD   718252703      18,588           391,324   X   123            222,255    118,023      51,046

 PHILLIPS PETE                  COMMON   718507106      14,219           300,928   X   123             32,900                268,028

 PHYCOR INC CVT SUB DEBS        CV BND   71940FAB6      78,220         1,337,086   X   1234         1,234,939     56,892      45,255

 PILGRIM MID CAP GROWTH FD C    COMMON   72146E558         340            18,365   X   123                                    18,365

 PILGRIM PRIME RATE TRUST       COMMON   72146W103           9             1,000   X   123              1,000                       

 PINNACLE WEST CAPITAL CORP     COMMON   723484101       5,876           161,538   X   123            102,800                 58,738

 PIONEER HI-BRED INT            COMMON   723686101         553            14,700   X   123              3,000                 11,700

 PIONEER STD ELECTRS            COMMON   723877106          59             9,003   X   123                                     9,003

 PIONEER II FUND CL A           COMMON   724010103                            11   X   123                                        11

 PITNEY BOWES                   COMMON   724479100         956            15,000   X   123                400                 14,600

 PLAINS RESOURCES INC           COMMON   726540503       6,597           439,800   X   123            358,100                 81,700

 PLATINUM TECH CVT SUB NTS      CV BND   72764TAD3       5,270            55,471   X   123             42,297     13,174            

 POGO PRODUCING CO CVT SUB NTS  CV BND   730448AE7      15,067           200,894   X   123            172,449     23,704       4,741

 POLAROID CORP                  COMMON   731095105           5               263   X   123                                       263

 POLO RALPH LAUREN CORP         COMMON   731572103          26             1,300   X   123                                     1,300

 POLYCOM INC                    COMMON   73172K104         150             8,000   X   123                                     8,000

 POTLATCH CORP                  COMMON   737628107          26               762   X   123                                       762

 POTOMAC ELEC PWR SUB DEB CONV  CV BND   737679BT6       1,690            17,700   X   123             17,700                       

 POWERWAVE TECHNOLOGIES INC     COMMON   739363109      16,213           571,400   X   123            468,800                102,600

 PRAXAIR INC                    COMMON   74005P104     103,166         2,860,724   X   123          1,750,249     17,200   1,093,275

 PREMARK INTL                   COMMON   740459102      80,594         2,446,825   X   123          1,726,815      1,900     718,110

 PREMIER FARNELL CONV PFD 5.4%  CV PFD   74050U206          46             2,589   X   123                                     2,589

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  19        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 PRENTISS PROPERTIES TRUST      COMMON   740706106         735            39,200   X   123             20,000                 19,200

 PREVIEW TRAVEL INC             COMMON   74137R101       3,895           205,000   X   123            168,900                 36,100

 PRICELINE.COM INC              COMMON   741503106         124             1,500   X   123              1,500                       

 PRIMEX TECHNOLOGIES INC        COMMON   741597108       3,424           165,000   X   123            124,400                 40,600

 PRIME HOSPITALITY CORP         COMMON   741917108       2,698           271,500   X   123            196,800                 74,700

 PRIDE INTL SUB DEBS            CV BND   741932AB3       1,559            62,069   X   123             55,172      6,897            

 PRIDE INTL INC                 COMMON   741932107         495            60,000   X   123             60,000                       

 PRISON REALTY CORP             COMMON   74264N105       8,420           482,841   X   123            251,566                231,275

 PROBUSINESS SERVICES INC       COMMON   742674104       9,248           220,200   X   123            181,000                 39,200

 PROCTER & GAMBLE               COMMON   742718109      29,876           305,046   X   123            144,040      2,200     158,806

 PROFIT RECOVERY GROUP INTL     COMMON   743168106      16,148           408,800   X   123            334,700                 74,100

 PROGRESSIVE CORP               COMMON   743315103          86               600   X   123                                       600

 PROTECTIVE LIFE CORP           COMMON   743674103      12,268           323,900   X   123            261,700                 62,200

 PROVIDENT BANKSHARES CORP      COMMON   743859100          16               600   X   123                                       600

 PROVIDIAN FINANCIAL CORP       COMMON   74406A102      33,380           303,451   X   123            166,101                137,350

 PSINET INC                     COMMON   74437C101          47             1,100   X   123              1,100                       

 PUBLIC SERVICE CO OF N C       COMMON   744516105       9,369           330,200   X   123            271,600                 58,600

 PUB SVC ENTERPRISE GROUP INC   COMMON   744573106          38             1,000   X   123              1,000                       

 PUBLIC STORAGE INC             COMMON   74460D109           8               300   X   123                                       300

 PUTNAM AMERICAN GOVT FD CL A   COMMON   74644B102           7               750   X   123                                       750

 PUTNAM INTL GROWTH FD -B       COMMON   746932201         263            13,241   X   123                                    13,241

 QUAKER OATS                    COMMON   747402105         997            16,020   X   123              3,700      4,000       8,320

 QUALCOMM INC                   COMMON   747525103         706             5,675   X   123              2,175                  3,500

 QUANTUM CORP SUB CONV NTS      CV BND   747906AC9         974            10,790   X   123             10,790                       

 QUANTUM CORP                   COMMON   747906105       7,007           389,254   X   123            277,854                111,400

 QUEST DIAGNOSTICS INC          COMMON   74834L100          86             3,870   X   123              2,821                  1,049

 QUORUM HLTH                    COMMON   749084109          50             5,000   X   123              5,000                       

 QWEST COMMUNICATIONS INTL      COMMON   749121109       1,485            20,600   X   123             16,600                  4,000

 R H DONNELLEY CORP             COMMON   74955W307      17,035         1,103,430   X   123            846,630                256,800

 RJR NABISCO HLDGS CORP NEW     COMMON   74960K876       2,560           102,416   X   123             81,176                 21,240

 RPM INC OHIO                   COMMON   749685103          91             6,863   X   123                                     6,863

 RALSTON-RALSTON PURINA GRP     COMMON   751277302         160             6,000   X   123                         6,000            

 RAMCO GERSHENSON PPTYS         COMMON   751452202          13               789   X   123                                       789

 RATIONAL SOFTWARE CORP         COMMON   75409P202          13               500   X   123                500                       

 RAYCHEM CORP                   COMMON   754603108      30,777         1,364,050   X   123            884,450     33,400     446,200

 RAYTHEON CO CL A               COMMON   755111309         289             5,004   X   123              3,043                  1,961

 RAYTHEON CO CL B               COMMON   755111408     207,971         3,547,482   X   123          2,213,025      8,500   1,325,957

 READ-RITE CORP SUB NTS CVT     CV BND   755246AA3     149,034         2,463,373   X   123          2,198,702    196,329      68,342

 REEBOK INTL                    COMMON   758110100         102             6,400   X   123              6,400                       

 REGAL BELOIT                   COMMON   758750103       5,224           289,200   X   123            245,400                 43,800

 REGAL COMMUNICATIONS CORP      COMMON   758756308           4             7,000   X   123                                     7,000

 REGENT COMM INC CVT PFD 7% C   CV PFD   758865208          20             4,229   X   123                                     4,229

 RELIANT ENERGY INC             COMMON   75952J108          73             2,800   X   123                                     2,800

 RELIASTER FINANCIAL CORP       COMMON   75952U103      52,941         1,242,025   X   123            678,875      1,300     561,850

 REMEC INC                      COMMON   759543101       5,206           249,400   X   123            205,200                 44,200

 REMEDY CORP                    COMMON   759548100       8,345           596,100   X   123            475,600                120,500

 REPSOL SA -SP ADR              COMMON   76026T205         418             8,150   X   123              4,750                  3,400

 RESMED INC                     COMMON   761152107       5,625           199,100   X   123            158,100                 41,000

 RESPIRONICS INC                COMMON   761230101      11,911           903,200   X   123            744,400                158,800

 REUTERS GROUP PLC SPONS ADR    COMMON   76132M102       2,823            32,499   X   123              3,985                 28,514

 REYNOLDS METALS                COMMON   761763101          29               600   X   123                600                       

 RICHARDSON ELEC SUB DEB CONV   CV BND   763165AB3      80,013         1,081,263   X   1234           814,234    255,440      11,589

 RICHFOOD HOLDINGS INC          COMMON   763408101       5,113           237,100   X   123            194,700                 42,400

 RIGGS NATL CORP WASH D C       COMMON   766570105          84             5,000   X   123              5,000                       

 RITE AID                       COMMON   767754104      10,309           412,350   X   123            208,000     11,700     192,650

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  20        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 ROADWAY EXPRESS INC            COMMON   769742107           3               175   X   123                                       175

 ROCHESTER FUND MUNICIPAL       COMMON   771362100          50             2,671   X   123              2,671                       

 ROCHESTER GAS & ELECTRIC       COMMON   771367109      10,049           392,150   X   123            313,400                 78,750

 ROCKWELL INTL                  COMMON   773903109         270             6,360   X   123              1,200                  5,160

 ROGERS COMM INC CVT DEBS       CV BND   775109AE1     364,340         5,069,085   X   123456       4,833,666    132,316     103,103

 ROLLINS INC                    COMMON   775711104          67             4,000   X   123                                     4,000

 ROSS STORES INC                COMMON   778296103       7,676           175,200   X   123            144,700                 30,500

 ROUSE CO                       COMMON   779273101           4               200   X   123                200                       

 ROWAN COS                      COMMON   779382100      11,515           907,587   X   123            380,037                527,550

 ROYAL DUTCH PETRO -NY SHARES   COMMON   780257804      48,866           939,740   X   123            522,785                416,955

 RUBY TUESDAY INC               COMMON   781182100          63             3,650   X   123              2,250                  1,400

 RYDER SYSTEM                   COMMON   783549108     104,012         3,765,123   X   123          2,405,985     31,000   1,328,138

 SBC COMMUNICATIONS INC         COMMON   78387G103      38,177           809,034   X   123            459,067      9,156     340,811

 SCI SYSTEMS INC                COMMON   783890106       4,069           137,335   X   123             91,700                 45,635

 SDL INC                        COMMON   784076101      19,874           219,000   X   123            189,100                 29,900

 SLM HOLDING CORP               COMMON   78442A109      13,260           317,600   X   123            296,300                 21,300

 SPX CORP                       COMMON   784635104       8,857           175,600   X   123            142,200                 33,400

 S3 INC SUB DEB CONV            CV BND   784849AC5     142,187         1,864,747   X   1234         1,617,352    184,961      62,434

 SAFEWAY INC                    COMMON   786514208      14,707           286,620   X   123            228,970                 57,650

 ST JUDE MEDICAL INC            COMMON   790849103       3,058           125,469   X   123             75,900                 49,569

 ST PAUL COMPANIES              COMMON   792860108       1,485            47,798   X   123                600      8,000      39,198

 SAKS INCORPORATED              COMMON   79377W108       5,773           222,042   X   123            147,000                 75,042

 SANMINA CORP                   COMMON   800907107         434             6,800   X   123                                     6,800

 SAPPI LTD -SPONS ADR           COMMON   803069202       7,260           169,340   X   123             78,855      1,000      89,485

 SARA LEE                       COMMON   803111103      69,919         2,825,010   X   123          1,629,344     23,600   1,172,066

 SAWTEK INC                     COMMON   805468105       8,694           257,600   X   123            212,200                 45,400

 SCHERING-PLOUGH                COMMON   806605101      55,516         1,004,823   X   123            626,751      6,300     371,772

 SCHLUMBERGER LTD               COMMON   806857108      48,904           812,521   X   123            475,979      7,700     328,842

 SCHOLASTIC CORP CVT 144A SUB   CV BND   807066AA3      33,042           360,624   X   123            290,696     59,520      10,408

 SCHULER HOMES SUB CONV DEB     CV BND   808188AA4     132,305         1,674,747   X   1234         1,428,986    188,502      57,259

 SCHWAB CHARLES CORP            COMMON   808513105       5,734            59,650   X   123             44,200                 15,450

 SCIENTIFIC ATLANTA INC         COMMON   808655104          35             1,300   X   123                                     1,300

 SCORE BOARD INC                COMMON   809173206                             2   X   123                  2                       

 SCOTTS COMPANY                 COMMON   810186106      10,379           277,700   X   123            226,100                 51,600

 SEALED AIR CORP                COMMON   81211K100     106,441         2,163,970   X   123          1,314,760     19,700     829,510

 SEALED AIR CORP CVT PFD A      CV PFD   81211K209         210             4,235   X   123                963                  3,272

 SEARS ROEBUCK & CO             COMMON   812387108      60,409         1,336,846   X   123            836,334      1,600     498,912

 SECURITY FIRST TECHNOLOGIES    COMMON   814279105       7,394           100,600   X   123             82,100                 18,500

 SECURITY NATIONAL CORP         COMMON   814784104         979            15,068   X   123             15,068                       

 SENSORMATIC ELECTRONICS CORP   COMMON   817265101          76             8,000   X   123              8,000                       

 SEPRACOR INC                   COMMON   817315104         932             8,300   X   123              8,300                       

 SEQUENT COMPUTER SYSTEMS INC   COMMON   817338106       6,841           754,800   X   123            620,100                134,700

 SERVICE CORP INTL              COMMON   817565104       1,324            92,900   X   123             32,500                 60,400

 SERVICEMASTER COMPANY          COMMON   81760N109         137             6,749   X   123                                     6,749

 SHAW INDS                      COMMON   820286102       2,089           112,900   X   123             99,800                 13,100

 SHELBY WILLIAMS INDS           COMMON   822135109           2               177   X   123                                       177

 SHERIDAN HEALTHCARE INC        COMMON   823781109       2,972           344,600   X   123            270,300                 74,300

 SHERWIN WILLIAMS               COMMON   824348106       3,511           124,850   X   123             85,800                 39,050

 SHONEYS INC SUB DEB CONV ZERO  CV BND   825039AC4     108,882         4,269,872   X   123          3,222,704    833,802     213,366

 SIEBEL SYSTEMS INC             COMMON   826170102          86             1,800   X   123              1,800                       

 SIEMENS AG -SPONS ADR          COMMON   826197402          40               600   X   123                                       600

 SIGMA ALDRICH                  COMMON   826552101         105             3,600   X   123                                     3,600

 SIG CORP INC                   COMMON   826912107         244             8,928   X   123              8,928                       

 SILICON GRAPHICS CVT SR NTS    CV BND   827056AC6      97,546         1,086,858   X   12356        1,015,827     57,239      13,792

 SILICON VALLEY GROUP INC       COMMON   827066101          57             4,620   X   123              4,100                    520

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  21        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 SIMON PROPERTY GROUP INC       COMMON   828806109       8,656           315,458   X   1235           136,400                179,058

 SIZELER PROP INV CVT SUB DEBS  CV BND   830137AA3      53,273           571,297   X   123            428,992     76,922      65,383

 SMART MODULAR TECHNOLOGIES     COMMON   831690102       5,110           342,100   X   123            281,400                 60,700

 SMITH A O CORP                 COMMON   831865209       6,643           349,650   X   123            293,200                 56,450

 SMITHFIELD FOODS INC           COMMON   832248108       4,131           182,061   X   123            122,100                 59,961

 SMITHKLINE BEECHAM -SP ADR     COMMON   832378301       8,278           115,772   X   123             66,750                 49,022

 SMURFIT-STONE CONTAINER CORP   COMMON   832727101         548            28,400   X   123              1,400                 27,000

 SODEXHO MARRIOTT SERVICES      COMMON   833793102           9               425   X   123                425                       

 SOFTNET SYSTEMS                COMMON   833964109       6,999           191,100   X   123            156,400                 34,700

 SOGEN INTL FUND                COMMON   834062101          33             1,439   X   123                                     1,439

 SOLECTRON CORP                 COMMON   834182107      53,958         1,111,100   X   123            577,900                533,200

 SOLUTIA INC                    COMMON   834376105      65,530         3,771,531   X   123          2,500,830     47,140   1,223,561

 SONAT INC                      COMMON   835415100          60             2,000   X   123              1,000                  1,000

 SOUTH AFRICAN BREWER SP ADR    COMMON   836216309                            10   X   123                                        10

 SOUTHDOWN INC                  COMMON   841297104      11,650           217,000   X   123            163,200                 53,800

 SOUTHEAST BANKING CORP         COMMON   841338106           3             5,000   X   123                                     5,000

 SOUTHERN CO                    COMMON   842587107         970            41,620   X   123              7,700      8,000      25,920

 SOUTHTRUST CORP                COMMON   844730101       4,368           117,075   X   123             75,250                 41,825

 SOUTHWEST AIRLINES             COMMON   844741108       3,523           116,462   X   123            107,825                  8,637

 SPACELABS MEDICAL INC          COMMON   846247104       3,021           179,700   X   123            132,600                 47,100

 SPARTECH CORP                  COMMON   847220209       3,871           187,700   X   123            138,700                 49,000

 SPEEDFAM INTL INC              COMMON   847706108       4,331           360,900   X   123            297,300                 63,600

 SPIEKER PROPERTIES INC         COMMON   848497103          32               900   X   123                600                    300

 SPORTSLINE USA INC             COMMON   848934105       5,603           122,800   X   123            100,700                 22,100

 SPRINT CORP (FON GROUP)        COMMON   852061100     152,979         1,559,023   X   123            959,878      5,100     594,045

 SPRINT CORP (PCS GROUP)        COMMON   852061506      18,658           421,042   X   123            181,025                240,017

 STANLEY WORKS                  COMMON   854616109         262            10,216   X   123              5,216                  5,000

 STAPLES INC                    COMMON   855030102      16,126           490,530   X   123            349,100     11,550     129,880

 STARBUCKS CORP                 COMMON   855244109      57,885         2,062,668   X   123          1,143,468                919,200

 STATE STREET CORP              COMMON   857477103          33               400   X   123                                       400

 STATE STR INVT CORP            COMMON   857483101         195            15,147   X   123             15,147                       

 STATEN ISLAND BANCORP INC      COMMON   857550107      12,784           743,800   X   123            585,500                158,300

 STEARNS & LEHMAN INC           COMMON   857890107           2             1,000   X   123                                     1,000

 STERICYCLE INC                 COMMON   858912108       2,536           188,700   X   123            139,500                 49,200

 STERIS CORP                    COMMON   859152100          40             1,500   X   123                900                    600

 STERLING COMMERCE INC          COMMON   859205106          87             2,825   X   123                825                  2,000

 STERLING SOFTWARE INC          COMMON   859547101           5               200   X   123                                       200

 STEWART ENTERPRISES CL A       COMMON   860370105      13,253           825,080   X   123            723,600                101,480

 STEWART INFO SVCS              COMMON   860372101          20               600   X   123                200                    400

 STRATTEC SECURITY CORP         COMMON   863111100          12               436   X   123                                       436

 STREAMLOGIC CORP               COMMON   863238101          11        10,715,189   X   12345        9,303,796  1,261,243     150,150

 STREAMLOGIC CORP WTS EXP        WTS     863238119                        58,649   X   12356           50,061      7,345       1,243

 STRYKER CORP                   COMMON   863667101      40,665           806,240   X   123            413,590                392,650

 SUBURBAN LODGES OF AMERICA     COMMON   864444104           3               400   X   123                                       400

 SUN COMMUNITIES INC            COMMON   866674104      14,548           458,200   X   123            379,200                 79,000

 SUN MICROSYSTEMS               COMMON   866810104     141,128         1,128,455   X   123            707,180     10,300     410,975

 SUN HEALTHCARE GROUP INC       COMMON   866933104           4             3,600   X   123                                     3,600

 SUNDSTRAND CORP                COMMON   867323107      17,593           253,134   X   123            183,184      8,900      61,050

 SUNGARD DATA SYSTEMS           COMMON   867363103       5,254           131,340   X   123             90,300                 41,040

 SUNOCO INC                     COMMON   86764P109         253             7,008   X   123              1,208                  5,800

 SUNTRUST BANK                  COMMON   867914103         675            10,844   X   123              7,040                  3,804

 SUPERVALU INC                  COMMON   868536103       1,101            53,400   X   123             53,400                       

 SYBASE INC                     COMMON   871130100           5               624   X   123                                       624

 SYMANTEC CORP                  COMMON   871503108      14,339           846,565   X   123            564,700                281,865

 SYNOPSYS INC                   COMMON   871607107       1,564            29,100   X   123             21,600                  7,500

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  22        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 SYSCO CORP                     COMMON   871829107       1,421            54,000   X   123             32,000                 22,000

 TCA CABLE TV INC               COMMON   872241104          83             1,900   X   123              1,900                       

 TCF FINANCIAL CORP             COMMON   872275102       1,079            41,400   X   123                                    41,400

 TECO ENERGY INC                COMMON   872375100         400            20,120   X   123             10,320                  9,800

 TEPPCO PARTNERS L P            COMMON   872384102          35             1,400   X   123                                     1,400

 TIG HLDGS INC                  COMMON   872469101         613            37,600   X   123             32,100                  5,500

 TJX COMPANIES INC              COMMON   872540109      68,829         2,024,395   X   123          1,320,300                704,095

 TPI ENTERPRISES SUB CONV DEB   CV BND   872623AA1     102,834         1,788,421   X   1234         1,555,986    142,027      90,408

 TRW INC                        COMMON   872649108          82             1,800   X   123                200                  1,600

 TLC THE LASER CENTER           COMMON   872934104       8,729           271,200   X   123            221,600                 49,600

 TAIWAN EQUITY FUND INC         COMMON   874031107           2               200   X   123                                       200

 TALBOTS INC                    COMMON   874161102       6,279           257,600   X   123            214,000                 43,600

 TANDY CORP                     COMMON   875382103       4,730            74,125   X   123             47,400                 26,725

 TANKNOLOGY-NDE INTL INC        COMMON   87583E101           1             2,000   X   123                                     2,000

 TECHNE CORP                    COMMON   878377100       1,224            42,400   X   123                                    42,400

 TEKTRONIX INC                  COMMON   879131100      10,241           405,600   X   123            330,300                 75,300

 TELE DANMARK A/S -SPONS ADR    COMMON   879242105          12               250   X   123                250                       

 TELECOM NEW ZEALAND ADR        COMMON   879278208          39             1,000   X   123                                     1,000

 TELEBRAS -SPONS ADR PFD BLOCK  COMMON   879287308         990            12,280   X   123             11,930                    350

 TELEFLEX INC                   COMMON   879369106       1,018            29,900   X   123             13,600                 16,300

 TELEFONOS DE MEXICO S A REP L  COMMON   879403780          86             1,300   X   123                                     1,300

 TELEPHONE DATA & SYSTEM        COMMON   879433100       3,991            70,800   X   123             48,300                 22,500

 TELLABS INC                    COMMON   879664100         948             9,700   X   123              1,200                  8,500

 TELXON CORP CVT SUB NTS        CV BND   879700AC6      56,591           832,215   X   123            639,488    163,637      29,090

 TEMPLE INLAND INC              COMMON   879868107          66             1,058   X   123                                     1,058

 TEMPLETON DEV MKTS TR CL I     COMMON   88018W104         212            18,947   X   123                                    18,947

 TEMPLETON EMERG MKTS INC FD    COMMON   880192109          22             2,281   X   123              2,281                       

 TEMPLETON FOREIGN FD           COMMON   880196209         540            60,557   X   123              7,773                 52,784

 TEMPLETON INSTL FOREIGN EQUITY COMMON   880210505         183            10,166   X   123                                    10,166

 TENAGA NASIONAL BHD -SP ADR    COMMON   880277108         754           160,000   X   123            158,000                  2,000

 TENET HEALTHCARE CVT SUB NTS   CV BND   88033GAD2      30,945           386,812   X   12345          337,526     38,910      10,376

 TENET HEALTHCARE CORP          COMMON   88033G100     102,262         5,399,817   X   123          3,418,932     26,500   1,954,385

 TENNECO INC NEW                COMMON   88037E101      49,641         1,776,810   X   123          1,073,025                703,785

 TERADYNE INC                   COMMON   880770102          55             1,000   X   123              1,000                       

 TETRA TECH INC                 COMMON   88162G103       3,159           150,000   X   123            127,900                 22,100

 TEXACO INC                     COMMON   881694103       2,722            47,962   X   123             31,328      1,800      14,834

 TEXAS INSTR                    COMMON   882508104      95,335           960,555   X   123            616,095     15,800     328,660

 TEXAS UTILITIES CO (HLDG)      COMMON   882848104     116,241         2,767,649   X   123          1,698,270      2,900   1,066,479

 TEXTRON INC                    COMMON   883203101       1,149            14,844   X   123              6,500                  8,344

 TEXTRON INC CVT PFD A          CV PFD   883203200         653             2,107   X   123              2,107                       

 THERAGENICS CORP               COMMON   883375107          39             5,500   X   123              2,000                  3,500

 THERMO ELECTRON 144A CVT       CV BND   883556AF9     282,914         3,196,767   X   123          3,068,465     33,068      95,234

 THERMO ELECTRON CORP           COMMON   883556102         235            17,300   X   123              3,500                 13,800

 THERMO INSTRUMENT 144A CVT DEB CV BND   883559AC0      58,643           657,063   X   123            641,101                 15,962

 THERMO TERRATECH 144A SUB CVT  CV BND   883598AA2     139,501         1,660,731   X   1236         1,572,306                 88,425

 THERMEDICS INC CVT DEBS        CV BND   883901AD2         252             3,148   X   123              3,148                       

 THOMAS & BETTS                 COMMON   884315102       5,802           154,450   X   123            104,350                 50,100

 3COM CORP                      COMMON   885535104       2,724           116,850   X   123             88,200                 28,650

 TIDEWATER INC                  COMMON   886423102           5               200   X   123                                       200

 TIFFANY & CO                   COMMON   886547108         105             1,400   X   123              1,400                       

 TIME WARNER INC                COMMON   887315109     285,538         4,032,286   X   123          2,455,600      8,900   1,567,786

 TITAN INTL INC                 COMMON   88830M102          17             2,150   X   123                350                  1,800

 TORCHMARK CORP                 COMMON   891027104         377            11,926   X   123              2,000                  9,926

 TOSCO CORP                     COMMON   891490302      22,149           892,650   X   123            573,025      4,500     315,125

 TOTAL RENAL CARE HLDGS         COMMON   89151A107       3,268           297,060   X   123            206,400                 90,660

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  23        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 TOWER AUTOMOTIVE INC           COMMON   891707101      10,020           538,000   X   123            434,900                103,100

 TOYOTA MOTOR CORP UNSP ADR     COMMON   892331307          26               457   X   123                                       457

 TOYS R US                      COMMON   892335100         116             6,187   X   123              4,212                  1,975

 TRANS-INDUSTRIES INC           COMMON   893239103          35             5,671   X   123                                     5,671

 TRANSACTION NETWORK SERVICES   COMMON   893414102       7,058           431,000   X   123            357,700                 73,300

 TRANSWITCH CORP                COMMON   894065101      16,480           364,200   X   123            296,900                 67,300

 TREDEGAR INDS                  COMMON   894650100       2,228            72,000   X   123                                    72,000

 TRI CONTL CORP                 COMMON   895436103         949            32,725   X   123             32,399                    326

 TRICON GLOBAL RESTRAUNTS       COMMON   895953107         219             3,121   X   123              1,601                  1,520

 TRIBUNE CO NEW                 COMMON   896047107      29,574           451,937   X   123              1,000                450,937

 TRIGON HEALTHCARE INC          COMMON   89618L100      20,259           591,500   X   123            476,000                115,500

 TRUSTMARK CORP                 COMMON   898402102          12               600   X   123                                       600

 TUPPERWARE CORP                COMMON   899896104          36             2,000   X   123                                     2,000

 TUSSIK INC                     COMMON   901041103                            86   X   123                                        86

 TYCO INTERNATIONAL LTD         COMMON   902124106      53,933           751,685   X   123            380,322        962     370,401

 UCAR INTERNATIONAL INC         COMMON   90262K109       1,726           122,200   X   123            122,200                       

 USX-MARATHON GRP COM NEW       COMMON   902905827     139,768         5,082,471   X   123          2,977,385      2,900   2,102,186

 UST INC                        COMMON   902911106      17,597           673,575   X   123            340,275                333,300

 U S BANCORP                    COMMON   902973106       3,093            90,800   X   123              4,200                 86,600

 UNUM CORP                      COMMON   903192102       3,222            67,746   X   123             61,608                  6,138

 USAA INTERNATIONAL             COMMON   903287308         661            34,274   X   123                                    34,274

 USG CORP                       COMMON   903293405          57             1,100   X   123              1,100                       

 ULTRAMAR DIAMOND SHAMROCK CORP COMMON   904000106         356            16,450   X   123              2,300                 14,150

 UNICAPITAL CORP                COMMON   90459D108       7,397         1,160,300   X   123            957,100                203,200

 UNILEVER NV -NY SHS            COMMON   904784501         166             2,500   X   123              2,200                    300

 UNICOM CORP                    COMMON   904911104      25,221           689,800   X   123            393,000      1,800     295,000

 UNION CAMP CORP                COMMON   905530101          99             1,475   X   123                575                    900

 UNION CARBIDE                  COMMON   905581104         543            12,020   X   123              4,400                  7,620

 UNION PACIFIC                  COMMON   907818108       1,784            33,391   X   123             32,791                    600

 UNION PACIFIC RESOURCES GRP    COMMON   907834105          13             1,072   X   123                564                    508

 UNIONBANCAL CORPORATION        COMMON   908906100       3,412           100,175   X   123             61,800                 38,375

 UNIPHASE CORP                  COMMON   909149106       5,123            44,500   X   123             19,300                 25,200

 UNISYS CORP                    COMMON   909214108      59,137         2,135,835   X   123          1,531,345     77,790     526,700

 UNISYS CORP CONV PRFD SER A    CV PFD   909214207      33,654           648,745   X   123            497,222    137,560      13,963

 UNITED HEALTHCARE CORP         COMMON   910581107          95             1,800   X   123                                     1,800

 UNITED RENTALS INC             COMMON   911363109      47,076         1,651,800   X   123          1,135,650     44,900     471,250

 U S FILTER CORP                COMMON   911843209          25               800   X   123                500                    300

 U S WEST INC                   COMMON   91273H101      38,378           696,975   X   123            312,982      6,000     377,993

 UNITED TECHNOLOGIES            COMMON   913017109       2,560            18,899   X   123             10,319        400       8,180

 UNIVERSAL FOODS CORP           COMMON   913538104         237            11,500   X   123              3,500                  8,000

 UNOCAL CORP                    COMMON   915289102       4,431           120,150   X   123             88,750                 31,400

 UROMED CORP SUB CONV NTS       CV BND   917274AC6       8,158           194,241   X   123            166,912     21,833       5,496

 UTILICORP UNITED INC           COMMON   918005109          10               450   X   123                450                       

 VWR SCIENTIFIC PRODUCTS CORP   COMMON   918435108       7,529           334,600   X   123            268,100                 66,500

 VAN KAMPEN COMSTOCK FUND CL A  COMMON   92112D103           3               194   X   123                                       194

 VANGUARD WELLINGTON            COMMON   921935102          56             1,940   X   123                                     1,940

 VANGUARD WINDSOR II            COMMON   922018205       1,574            51,662   X   123             16,626      4,167      30,869

 VARIAN ASSOCIATES INC          COMMON   922204102         291             7,500   X   123              7,500                       

 VASTAR RESOURCES INC           COMMON   922380100       5,176           108,400   X   123             89,100      8,000      11,300

 VANGUARD INDEX TR 500 PORT     COMMON   922908108         256             2,153   X   123                                     2,153

 VENTURE STORES INC             COMMON   923275101                            13   X   123                 13                       

 VERISIGN INC                   COMMON   92343E102       1,617            10,500   X   123             10,500                       

 VERIO INC                      COMMON   923433106       6,374           138,200   X   123            113,100                 25,100

 VERITAS SOFTWARE CORP          COMMON   923436109          89             1,100   X   123              1,100                       

 VIAD CORP                      COMMON   92552R109     145,641         5,236,427   X   123          3,467,350     54,500   1,714,577

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  24        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 VIATEL INC                     COMMON   925529208       6,783           238,000   X   123            194,800                 43,200

 VIRAGEN INC                    COMMON   927638106           2             3,000   X   123                                     3,000

 VISIO CORP                     COMMON   927914101       9,433           335,400   X   123            273,500                 61,900

 VISIBLE GENETICS               COMMON   92829S104       6,482           370,400   X   123            301,600                 68,800

 VISHAY INTERTECHNOLOGY INC     COMMON   928298108       7,539           519,910   X   123            430,455                 89,455

 VISUAL NETWORKS INC            COMMON   928444108       6,130           164,000   X   123            133,800                 30,200

 VITESSE SEMICONDUCTOR CORP     COMMON   928497106          86             1,700   X   123              1,700                       

 VIVUS INC                      COMMON   928551100           2               400   X   123                                       400

 VLASIC FOODS INTL              COMMON   928559103       3,092           239,000   X   123            197,800                 41,200

 WPS RESOURCES CORP             COMMON   92931B106      16,729           567,100   X   123            460,100                107,000

 WACHOVIA CORP                  COMMON   929771103         695             8,560   X   123              1,000                  7,560

 WADDELL & REED FINL -A         COMMON   930059100          14               677   X   123                113                    564

 WADDELL & REED FINL -B         COMMON   930059209          58             2,919   X   123                489                  2,430

 WAL MART STORES                COMMON   931142103      58,386           633,335   X   123            337,877                295,458

 WALGREEN CO                    COMMON   931422109      13,173           466,302   X   123            236,700                229,602

 WALLACE COMP SVCS              COMMON   932270101         456            23,000   X   123             12,000                 11,000

 WANG LABORATORIES INC          COMMON   93369N109      11,759           599,200   X   123            485,300                113,900

 WARNACO GRP INC                COMMON   934390105      12,183           493,473   X   123            460,573                 32,900

 WARNER LAMBERT                 COMMON   934488107       5,642            85,167   X   123             16,100      8,000      61,067

 WASHINGTON FEDERAL INC         COMMON   938824109         312            14,868   X   123                                    14,868

 WASHINGTON GAS & LIGHT         COMMON   938837101       5,656           250,000   X   123            201,600                 48,400

 WASHINGTON MUTUAL INC          COMMON   939322103      61,110         1,495,037   X   123          1,032,082     33,900     429,055

 AMERICAN FDS-WASH MUTUAL INV   COMMON   939330106         601            18,296   X   123                                    18,296

 WASHINGTON TRUST BANCORP       COMMON   940610108         183            10,680   X   123                                    10,680

 WASTE MANAGEMENT INC           COMMON   94106L109      97,469         2,196,483   X   123          1,401,931     28,195     766,357

 WATKINS JOHNSON                COMMON   942486101           2               100   X   123                                       100

 WAVE SYSTEMS CORP -A           COMMON   943526103          28             1,000   X   123              1,000                       

 WEATHERFORD INTL               COMMON   947074100         154             5,888   X   123              2,755                  3,133

 WELLPOINT HEALTH NETWORKS      COMMON   94973H108      43,114           568,695   X   123            354,050      2,000     212,645

 WELLS FARGO COMPANY            COMMON   949746101      66,350         1,892,314   X   123          1,119,644     10,400     762,270

 WENDYS INTL                    COMMON   950590109       5,520           194,100   X   123            172,100                 22,000

 WESTERN BANCORP                COMMON   957683105       7,487           242,012   X   123            196,800                 45,212

 WESTERN DIGITAL 144A CVT       CV BND   958102AF2      32,301         1,435,581   X   1234         1,194,755    175,112      65,714

 WESTERN DIGITAL CVT SUB DEBS   CV BND   958102AH8      17,978           799,013   X   1234           724,339     74,674            

 WESTERN DIGITAL CORP           COMMON   958102105       4,106           521,400   X   123            431,700                 89,700

 WESTERN GAS RES CONV PFD 5.25% CV PFD   958259301       4,543           146,554   X   12356          106,676     33,588       6,290

 WESTERN RESOURCES INC          COMMON   959425109           8               300   X   123                300                       

 WEYERHAEUSER CO                COMMON   962166104         722            13,000   X   123                600                 12,400

 WHITMAN CORP                   COMMON   96647K102       6,684           388,900   X   123            317,500                 71,400

 WHOLE FOODS MARKET INC         COMMON   966837106          44             1,285   X   123                                     1,285

 WILLAMETTE INDS INC            COMMON   969133107         864            22,900   X   123             16,400                  6,500

 WILLIAMS COS INC               COMMON   969457100         558            14,117   X   123             13,618                    499

 WILLIAMS-SONOMA INC            COMMON   969904101          28             1,000   X   123                                     1,000

 WINCROFT INC                   COMMON   973144108                            75   X   123                                        75

 WISCONSIN ENERGY CORP          COMMON   976657106          29             1,125   X   123                                     1,125

 WOLVERINE TUBE INC             COMMON   978093102          13               600   X   123                200                    400

 WOODHEAD INDS INC              COMMON   979438108       1,189           122,700   X   123             89,000                 33,700

 WORTHINGTON INDS               COMMON   981811102      10,627           904,450   X   123            746,300                158,150

 WRIGLEY W M JR                 COMMON   982526105       2,303            25,462   X   123             18,100                  7,362

 XEROX CORP                     COMMON   984121103     151,307         2,902,765   X   123          1,887,575      3,500   1,011,690

 XYVISION INC                   COMMON   984180307           6             7,500   X   123                         7,500            

 XYVISION SERIES B CVT PFD      CV PFD   9841809D3           5             5,070   X   123                         5,070            

 YPF SOCIEDAD ANONIMA SP ADR    COMMON   984245100          95             3,000   X   123                                     3,000

 YORK INTERNATIONAL CORP        COMMON   986670107         124             3,500   X   1234             3,500                       

 CHAS P YOUNG                   COMMON   987436201           4               302   X   123                302                       

 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>

                                                                                                           FILE NO.  28-398         

 PG  25        FORM 13F      NAME OF REPORTING MANAGER  LOOMIS SAYLES & CO., INC      3/31/99                                       

                                                                                                           VOTING AUTHORITY (SHARES)

            ITEM 1              ITEM 2     ITEM 3      ITEM 4     ITEM 5     ITEM 6     ITEM 7                 ITEM 8               

                                                                        INVEST DISCRETION                                           

         NAME OF ISSUER         CLASS      CUSIP       MKT VAL            SHARES A B C MANAGERS     (A)SOLE    (B)SHARED    (C)NONE 

                                                        (000)                                       ---------  ---------   ---------

<S>                             <C>      <C>           <C>             <C>         <C>              <C>        <C>         <C>
 ZALE CORP                      COMMON   988858106       8,560           250,380   X   123            181,900                 68,480

 ZENITH CORP SUB DEB CONV       CV BND   989349AB1      49,968         1,665,600   X   1234         1,376,096    198,560      90,944

 ZIONS BANCORP                  COMMON   989701107       1,669            25,100   X   123             20,100                  5,000

                  COLUMN TOTALS                     33,786,632                                    
 INVESTMENT DISCRETION  A = SOLE                                                                                                    

                        B = SHARED-AS DEFINED IN INSTR Y                                                                            

                        C = SHARED-OTHER                                                                                            

</TABLE>
<PAGE>
 
                              Form 13F SUMMARY PAGE
Report Summary:

Number of Other Included Managers:          6
Form 13F Information Table Entry Total:     1,323
Form 13F Information Table Value Total:     $33,786,632
                                            (thousands)
List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional investment managers with respect to which this report is filed,
other than the manager filing this report.

         No.    Form 13F       File Number Name
         -------------------------------------------------------------
         1.     28-5952        MetLife New England Holdings, Inc.
         2.     28-3714        Metropolitan Life Insurance Company
         3.     28-6808        Nvest Companies, L.P.
         4.     28-2436        Strategic Investment Partners, Inc.
         5.     28-2437        Strategic Investment Management
         6.     28-2495        Strategic Investment management, Int'l


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