<PAGE>
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F
INFORMATION REQUIRED OF INSTITUTIONAL INVESTMENT MANAGERS PURSUANT TO
SECTION 13(f) OF THE SECURITIES EXCHANGE ACT OF 1934 AND RULES THEREUNDER
Report for the Calendar Year or Quarter Ended: June 30, 1999.
-------------
- --------------------------------------------------------------------------------
(Please read instructions before preparing form.)
- --------------------------------------------------------------------------------
If amended report check here: [_]
Baldwin Brothers, Inc.
- --------------------------------------------------------------------------------
Name of Institutional Investment Manager
3 Barnabas Road Marion, MA 02738
- --------------------------------------------------------------------------------
Business Address (Street) (City) (State) (Zip)
Michael Baldwin, (508) 748-0800, President, Baldwin Brothers, Inc.
- --------------------------------------------------------------------------------
Name, Phone No., and Title of Person Duly Authorized to Submit This Report.
---------------------------------- ATTENTION --------------------------------
Intentional misstatements or omissions of facts constitute Federal Criminal
Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
-----------------------------------------------------------------------------
The institutional investment manager submitting this Form and its attachments
and the person by whom it is signed represent hereby that all information
contained therein is true, correct and complete. It is understood that all
required items, statements and schedules are considered integral parts of this
Form and that the submission of any amendment represents that all unamended
items, statements and schedules remain true, correct and complete as previously
submitted.
Pursuant to the requirements of Securities Exchange Act of 1934, the undersigned
institutional investment manager has caused this report to be signed on its
behalf in the City of Marion and State of Massachusetts on the fifth day of
------ ------------- -----
August, 1999.
- ------------
Baldwin Brothers, Inc. (28-5814)
-------------------------------------------
(Name of Institutional Investment Manager)
/s/ Michael Baldwin
-------------------------------------------
(Manual Signature of Person Duly Authorized
to Submit This Report)
Name and 13F file numbers of ALL Institutional Investment Managers with respect
to which this schedule is filled (other than the one filing this report): (List
in alphabetical order).
13F File Numbers will be assigned to Institutional Investment Managers after
they file their first report.
<TABLE>
<CAPTION>
Name: 13F File No.:
- --------------------------------- -------------
<S> <C>
1. Michael Baldwin 28-5818
2. David A. Barrett 28-6352
3. Andrew M. Wallerstein 28-5816
4. J. Michael Costello 28-6868
5. Malcolm G. Chace, Jr. 28-6870
6. Ellen O. Stone 28-7204
</TABLE>
SEC 1685 (5/91)
<PAGE>
Baldwin Brothers, Inc.
FORM 13F
June 30, 1999
<TABLE>
<CAPTION>
Voting Authority
Title ----------------------
of Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer Class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- -------------- ----- --------- -------- -------- --- ---- ------- -------- ----- ------ -------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Avalon Bay Community Pfd Ser F PFD 053484507 514 20400 SH Sole 20400
Carlton Comm PLC PFD *% PFD G19068140 500 20000 SH Sole 20000
Equity Res Prop Tr Pfd Cv Cm 7 PFD 29476l859 679 28500 SH Sole 28500
Fleet Financial Grp 9.35% cum PFD 338915838 994 38300 SH Sole 38300
Glenborough Realty Trust 7.75% PFD 37803p105 2664 140200 SH Sole 4 300 139900
Houston Industries 7% pfd PFD 442161204 5480 45950 SH Sole 45950
ING 7.7% pfd PFD 44978d107 388 15500 SH Sole 15500
Int'l Paper Capital Tr pfd 7.8 PFD 460140205 200 8000 SH Sole 8000
Joseph E. Seagrams & Sons Snr PFD 811845205 1820 72450 SH Sole 72450
MediaOne Fin Pfd Tr III 9.04% PFD 584458202 1549 57900 SH Sole 57900
Merrill Lynch Pfd 7.00% Srs 11 PFD 59021f206 692 29000 SH Sole 29000
Morgan Stanley Group Inc Dep 1 PFD 617446877 600 5000 SH Sole 5000
Natl Westminster Bank ser A 7. PFD 638539809 1143 45250 SH Sole 45250
Rhone-Poulenc Overseas Ser PFD PFD G75495104 374 15000 SH Sole 15000
SI Financing Trust I 9.25% pfd PFD 828692103 415 15900 SH Sole 15900
TCI Comm Fin II Def Int Tr 10. PFD 872286208 213 8000 SH Sole 8000
Time Warner 8.875% pfd PFD 88731g204 332 12900 SH Sole 12900
Virginia Elec Pwr Co Ser A 6.7 PFD 927804591 238 10000 SH Sole 10000
Alza Corp sub Deb Conv CONV 022615ad0 55 40000 SH Sole 40000
Hilton Hotels Conv. Sub Notes CONV 432848al3 173 190000 SH Sole 190000
OHM Corp Sub Deb Conv Cv CONV 670839aa7 23 25000 SH Sole 25000
Avista Corp $12.40 Ser L Conv PFD CV 05379b503 306 18000 SH Sole 18000
Media One Group Pfd Conv Ser D PFD CV 58440j203 991 6616 SH Sole 6616
AT & T Corp Liberty Media Grou COM 001957208 221 6000 SH Sole 2 1400 4600
AT Cross CL A COM 227478104 445 80000 SH Sole 80000
AT&T Corp COM 001957109 3558 63753 SH Sole 63753
Abbott Labs COM 002824100 6712 147927 SH Sole 147927
Access Solutions COM 004317103 83 757212 SH Sole 4 757212
Aegon NV Amer Reg COM 007924103 1646 22258 SH Sole 22258
Air Products & Chemicals COM 009158106 821 20400 SH Sole 20400
Airgas Inc COM 009363102 542 44200 SH Sole 2 5200 39000
Albertson's Inc COM 013104104 325 6300 SH Sole 6300
Alcoa Inc COM 013817101 1114 18000 SH Sole 18000
Allied Signal Inc COM 019512102 1855 29450 SH Sole 29450
Ambase Corp. COM 023164106 29 25000 SH Sole 25000
American Express Co COM 025816109 703 5400 SH Sole 5400
American Home Prods Corp COM 026609107 4263 74295 SH Sole 74295
American Int'l Group COM 026874107 12025 102557 SH Sole 5 1050 101507
American Power Conversion COM 029066107 225 11200 SH Sole 11200
Amgen COM 031162100 469 7700 SH Sole 7700
Analog Devices COM 032654105 583 11616 SH Sole 11616
Andrew Corp COM 034425108 4488 237000 SH Sole 4 600 236400
Anheuser Busch Cos Inc COM 035229103 200 2825 SH Sole 2825
Applied Extrusion Tech COM 038196101 153 20000 SH Sole 2 6500 13500
Asarco Inc COM 043413103 564 30000 SH Sole 30000
Atlantic Richfield Co COM 048825103 769 9200 SH Sole 9200
Automatic Data Processing COM 053015103 732 16647 SH Sole 16647
BP Amoco Pls Spons ADR COM 055622104 2302 21213 SH Sole 21213
Baker Hughes Inc. COM 057224107 385 11500 SH Sole 11500
Banc One Corp Ohio COM 06423a103 1223 20531 SH Sole 20531
Bank New York Inc COM 064057102 683 18625 SH Sole 18625
</TABLE>
<PAGE>
Baldwin Brothers, Inc.
FORM 13F
June 30, 1999
<TABLE>
<CAPTION>
Voting Authority
Title ----------------------
of Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer Class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- -------------- ----- --------- -------- -------- --- ---- ------- -------- ----- ------ -------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Bank Rhode Island COM 064576101 641 63325 SH Sole 1,2 & 3 300 63125
Bank of America Corp COM 06605f102 1562 21309 SH Sole 2 200 21109
BankBoston Corp COM 060716107 9809 191859 SH Sole 2 4200 187659
Barbecue Galore Ltd spon ADR COM 067091108 105 14000 SH Sole 2 5000 9000
Bell Atlantic Corp COM 077853109 2218 33926 SH Sole 2 200 33726
Bellsouth Corp COM 079860102 2028 43970 SH Sole 43970
Belo Series A COM 080555105 394 20000 SH Sole 20000
Berkshire Hathaway Cl B COM 084670207 768 343 SH Sole 343
Berkshire Hathaway Inc COM 084670108 5236 76 SH Sole 5 13 63
Bestfoods COM 08658u101 243 4900 SH Sole 4900
Boeing Company COM 097023105 399 9065 SH Sole 9065
Boston Scientific Corp COM 101137107 10510 239190 SH Sole 2 2200 236990
Bristol Myers Squibb Co COM 110122108 4641 65885 SH Sole 65885
C U N O Inc. COM 126583103 280 20000 SH Sole 20000
CBS Corp COM 12490K107 442 10150 SH Sole 10150
CVS Corp COM 126650100 1878 37000 SH Sole 37000
Cabot Industrial Trust COM 127072106 518 24375 SH Sole 24375
Campbell Soup Co COM 134429109 984 21225 SH Sole 21225
Capital One Financial COM 14040H105 1243 22316 SH Sole 22316
Carnival Corp COM 143658102 243 5000 SH Sole 5000
Carolina Pwr & Lt Co COM 144141108 493 11516 SH Sole 11516
Cendant Corp COM 151313103 1005 49000 SH Sole 2 5200 43800
Chase Manhattan Corp COM 16161A108 1549 17910 SH Sole 17910
Chevron Corp COM 166751107 1089 11455 SH Sole 11455
Chubb Corp COM 171232101 1751 25200 SH Sole 2 400 24800
Cincinnati Financial Corp COM 172062101 254 6771 SH Sole 6771
Circuit City Stores Inc COM 172737108 1302 14000 SH Sole 14000
Cisco Systems Inc COM 17275R102 17036 264376 SH Sole 2 200 264176
Citigroup Inc COM 172967101 747 15723 SH Sole 15723
Citizens Util COM 177342201 245 22000 SH Sole 22000
Coca Cola Co COM 191216100 9054 146039 SH Sole 2 3200 142839
Colgate Palmolive Co COM 194162103 1358 13783 SH Sole 2 200 13583
Commerce Group Inc Mass COM 200641108 295 12100 SH Sole 12100
Compaq Computer COM 204493100 769 32455 SH Sole 32455
Computer Associates Intl Inc COM 204912109 207 3782 SH Sole 3782
Computer Sciences COM 205363104 277 4000 SH Sole 4000
Conectiv Inc COM 206829103 1256 51375 SH Sole 51375
Corning Inc COM 219350105 775 11050 SH Sole 11050
DLJ High Yield Bond Fund COM 23322y108 652 72400 SH Sole 2 1200 71200
Disney Walt Company COM 254687106 717 23265 SH Sole 23265
Dover Corp COM 260003108 417 11900 SH Sole 11900
Dow Chemical Corp COM 260543103 627 4940 SH Sole 4940
Du Pont E I De Nemours Co COM 263534109 835 12225 SH Sole 12225
Duke Energy Co. COM 264399106 601 11049 SH Sole 11049
Duke-Weeks Realty Corp COM 264411505 485 21500 SH Sole 21500
E M C Corp MA COM 268648102 474 8627 SH Sole 8627
Eaton Corp COM 278058102 649 7057 SH Sole 7057
Electronic Data Systems Corp COM 285661104 453 8000 SH Sole 8000
Emerson Elec Co COM 291011104 984 15631 SH Sole 15631
Enron Corp COM 293561106 7092 86747 SH Sole 86747
Ericson Lm Tel Sek10B ADR COM 294821400 4879 148118 SH Sole 148118
</TABLE>
<PAGE>
Baldwin Brothers, Inc.
FORM 13F
June 30, 1999
<TABLE>
<CAPTION>
Voting Authority
Title ----------------------
of Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer Class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- -------------- ----- --------- -------- -------- --- ---- ------- -------- ----- ------ -------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Exxon Corp COM 302290101 11001 142642 SH Sole 142642
Family Ventures III Part COM 999027816 25 21250 SH Sole 21250
Fannie Mae COM 313586109 3480 50995 SH Sole 50995
First Data Corporation COM 319963104 5024 102660 SH Sole 2 2700 99960
First Union Corp COM 337358105 335 7101 SH Sole 7101
Fleet Finl Grp Inc COM 338915101 8936 201385 SH Sole 4 & 5 389 200996
Foxborough Svgs Bank COM 351644109 770 14000 SH Sole 2 4000 10000
Freddie Mac COM 313400301 416 7175 SH Sole 7175
GTE Corp COM 362320103 2792 36983 SH Sole 36983
Gannett Inc Del COM 364730101 1073 15030 SH Sole 15030
General Electric Company COM 369604103 27760 245661 SH Sole 5 800 244861
Gillette Co COM 375766102 2069 50461 SH Sole 2 90 50371
Glaxo Wellcome plc ADR COM 37733W105 413 7300 SH Sole 7300
Glenborough Realty Trust COM 37803P105 1199 68501 SH Sole 68501
Halliburton Co COM 406216101 1929 42625 SH Sole 42625
Hancock J Ptrot Pfd D Fund COM 41013J107 704 60250 SH Sole 60250
Harken Energy COM 412552101 102 62950 SH Sole 2 10000 52950
Heinz H J Co COM 423074103 206 4100 SH Sole 4100
Hershey Foods Corp COM 427866108 356 6000 SH Sole 6000
Hewlett Packard Co COM 428236103 3020 30050 SH Sole 30050
Home Depot Inc COM 437076102 5548 86101 SH Sole 2 200 85901
Household Intl COM 441815107 253 5339 SH Sole 5339
Il International Inc Escrow COM 449658996 21 1033676 SH Sole 2 492373 541303
Innkeepers USA Trust COM 4576J0104 100 10000 SH Sole 10000
Int'l Business Machines COM 459200101 4390 33964 SH Sole 33964
Integra, Inc. COM 45811m105 77 58400 SH Sole 2 24200 34200
Intel Corp COM 458140100 17580 295462 SH Sole 5 1600 293862
Interface Inc CL A COM 458665106 101 11700 SH Sole 11700
J P Morgan & Co Inc COM 616880100 288 2048 SH Sole 2048
Jacobs Engr Group COM 469814107 971 25550 SH Sole 25550
Johnson & Johnson COM 478160104 4156 42405 SH Sole 42405
Kimberly-Clark COM 494368103 1753 30754 SH Sole 4 277 30477
Korea Fund COM 500634100 149 10000 SH Sole 10000
Lilly Eli & Co COM 532457108 2107 29420 SH Sole 29420
Lucent Technologies COM 549463107 4786 70966 SH Sole 70966
MCI WorldCom COM 55268b106 9581 111325 SH Sole 2 800 110525
Mattell Inc COM 577081102 326 12468 SH Sole 12468
Maxim Integrated Products COM 57772k101 34842 523940 SH Sole 523940
McDonald's Corp COM 580135101 1519 36933 SH Sole 36933
Medford Bancorp COM 584303101 2215 120558 SH Sole 2 6448 114110
MediaOne Group Inc COM 58440j104 822 11055 SH Sole 11055
Mediscience COM 585901101 31 163000 SH Sole 163000
Medtronic COM 585055106 9499 121975 SH Sole 121975
Mellon Bank COM 585509102 400 11000 SH Sole 11000
Merck & Co COM 589331107 12487 169598 SH Sole 169598
Mercury Genl Corp COM 589400100 408 12000 SH Sole 12000
Meristar Hotels & Resorts COM 589988104 34 10000 SH Sole 2 2000 8000
MicroTel Intl Inc New (restric COM 59514K209 26 82067 SH Sole 1 & 3 21011 61056
Microsoft Corp Wash COM 594918104 4910 54441 SH Sole 54441
Miller Inds COM 600551105 1103 280000 SH Sole 280000
Minnesota Mng & Mfg Co COM 604059105 966 11110 SH Sole 11110
</TABLE>
<PAGE>
Baldwin Brothers, Inc.
FORM 13F
June 30, 1999
<TABLE>
<CAPTION>
Voting Authority
Title ----------------------
of Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer Class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- -------------- ----- --------- -------- --------- --- ---- ------- -------- ----- ------ -------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Mobil Corp COM 607059102 1363 13800 SH Sole 13800
Morgan Stanley Dean Witter Dis COM 617446448 606 5908 SH Sole 5908
Motorola COM 620076109 2265 23900 SH Sole 23900
Murray United Development COM 627189103 2 100000 SH Sole 100000
National City Corp COM 635405103 2594 39600 SH Sole 39600
Network Associates COM 640938106 455 31000 SH Sole 31000
Nichols Resh Corp COM 653818104 328 15000 SH Sole 15000
Norfolk Southern Corp COM 655844108 365 12100 SH Sole 12100
Nortel Networks Corp COM 665815106 260 3000 SH Sole 3000
Oak Inds COM 671400505 6143 140000 SH Sole 140000
Office Depot COM 676220106 307 13925 SH Sole 2 1323 12602
Optika COM 683973101 553 98350 SH Sole 2 6500 91850
Oracle Sys Corp COM 68389X105 11566 311549 SH Sole 2 1975 309574
PNC Bank COM 693475105 4135 71750 SH Sole 71750
PPG Industries COM 693506107 581 9842 SH Sole 9842
Parametric Technology COM 699173100 191 13800 SH Sole 13800
Pepsico Inc COM 713448108 3310 85563 SH Sole 4 200 85363
Pfizer Inc COM 717081103 2617 24009 SH Sole 24009
Philip Morris Cos COM 718154107 1871 46550 SH Sole 2 1500 45050
Procter & Gamble Co COM 742718109 7509 84132 SH Sole 84132
Protein Design Labs COM 74369L103 882 39750 SH Sole 2 1500 38250
Providian Corp COM 744061102 4426 47461 SH Sole 47461
QUALCOMM COM 747525103 32452 226145 SH Sole 4 & 5 1100 225045
Quintiles Transnational Corp COM 748767100 1914 45573 SH Sole 45573
Raytheon Co New CL B COM 755111408 1043 14800 SH Sole 14800
Rohm & Haas Co COM 775371107 348 8113 SH Sole 8113
Roper Industries Inc COM 776696106 362 11320 SH Sole 11320
Royal Dutch Pete NLG 1.25 COM 780257705 5648 93748 SH Sole 93748
SBC Communications Inc PV$1 COM 78387G103 1242 21422 SH Sole 21422
Sara Lee Corp COM 803111103 368 16210 SH Sole 16210
Schering Plough Corp COM 806605101 354 6735 SH Sole 6735
Schlumberger COM 806857108 1305 20483 SH Sole 20483
Seacoast Financial Svcs Corp COM 81170q106 751 66000 SH Sole 2 3000 63000
Servicemaster Co. COM 81760N109 869 46336 SH Sole 2 300 46036
Sherwin Williams Co COM 824348106 2562 92325 SH Sole 4 100 92225
Smithkline Beecham ADS COM 832378301 705 10673 SH Sole 10673
St. Joe Co COM 790148100 389 14400 SH Sole 14400
Staples COM 855030102 1213 39216 SH Sole 39216
State Street Corp COM 857477103 301 3525 SH Sole 3525
Steel Dynamics COM 858119100 504 30400 SH Sole 30400
Sun Microsystem Inc COM 866810104 4184 60750 SH Sole 60750
Supertex COM 868532102 966 84000 SH Sole 84000
Sybron Intl corp Wisc COM 87114F106 657 23850 SH Sole 23850
Teco Energy Inc COM 872375100 357 15700 SH Sole 15700
Teleflex Inc. COM 879369106 278 6400 SH Sole 6400
Thermo Electron Corp COM 883556102 272 13562 SH Sole 6 100 13462
Time Warner Inc COM 887315109 675 9300 SH Sole 9300
Transwitch Corp COM 894065101 796 16799 SH Sole 4 400 16399
Tyco International Limited COM 902124106 914 9648 SH Sole 9648
U S West Inc COM 91273h101 816 13894 SH Sole 13894
UnumProvident Corp COM 91529y106 11545 210860 SH Sole 2 2000 208860
</TABLE>
<PAGE>
Baldwin Brothers, Inc.
FORM 13F
June 30, 1999
<TABLE>
<CAPTION>
Voting Authority
Title ----------------------
of Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer Class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- -------------- ----- --------- -------- --------- --- ---- ------- -------- ----- ------ -------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Wachovia Corp COM 929771103 216 2526 SH Sole 2526
Wal Mart Stores Inc COM 931142103 730 15130 SH Sole 15130
Walgreen Company COM 931422109 1094 37250 SH Sole 37250
Warner Lambert Co COM 934488107 399 5768 SH Sole 5768
Washington Mutual Inc COM 939322103 281 7895 SH Sole 7895
Waste Management Inc New COM 94106l109 398 7250 SH Sole 7250
Wells Fargo & Company COM 949740101 291 6800 SH Sole 6800
Whirlpool Corp COM 963320106 444 6000 SH Sole 6000
Williams Companies COM 969457100 3294 77400 SH Sole 77400
Wisconsin Energy Corp COM 976657106 406 16200 SH Sole 16200
Xerox Corp COM 984121103 955 16166 SH Sole 16166
Alliance Cap Mgt LP MLP 018548107 4973 153900 SH Sole 2 4000 149900
Amerigas Partners LP MLP 030975106 246 12200 SH Sole 12200
Buckeye Partners L P MLP 118230101 2031 73854 SH Sole 2 400 73454
Cedar Fair L P MLP 150185106 217 8699 SH Sole 8699
Crown Pacific Partners L.P. MLP 228439105 970 43100 SH Sole 43100
Kinder Morgan Energy Partners, MLP 494550106 6905 186623 SH Sole 2 500 186123
Lakehead Pipeline PS L P MLP 511557100 2311 52600 SH Sole 2 300 52300
Leviathan Gas Partners L P MLP 527367205 3587 151829 SH Sole 2 800 151029
Northern Border Partners L P MLP 664785102 3684 118600 SH Sole 2 500 118100
PIMCO Advisors Cl A LP MLP 69338p102 761 25586 SH Sole 2 500 25086
TC Pipeline LP MLP 87233q108 1611 78600 SH Sole 2 500 78100
Teppco Partners L P MLP 872384102 3741 150750 SH Sole 2 800 149950
Dordtsche Petrol .65NLG Ord FORGN n27145189 241 5058 SH Sole 5058
Koninklijke Philips Electronic FORGN 500472204 4176 41398 SH Sole 4 184 41214
Novartis ADR FORGN 66987v109 3875 53073 SH Sole 53073
Shire Pharmaceuticals Grp adr FORGN 82481r106 2289 88050 SH Sole 88050
</TABLE>
REPORT SUMMARY 231 DATA RECORDS 559987 0 OTHER MANAGERS ON WHOSE
BEHALF REPORT IS FILED