KOPP INVESTMENT ADVISORS INC
13F-HR, 2000-02-09
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                   UNITED STATES
        SECURITIES AND EXCHANGE COMMISSION
              Washington, D.C.  20549

                     Form 13F

                Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended:             12/31/99

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:             Kopp Investment Advisors, Inc.
Address:          7701 France Ave. So., Suite 500
                        Edina, MN  55435


Form 13F File Number:  28- 03099

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:       John P. Flakne
Title:         Chief Financial Officer
Phone:       (612) 841-0400

Signature, Place and Date of Signing:

                    Edina, MN              2/09/99


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).)
<PAGE>
<PAGE>
               Form 13F SUMMARY PAGE


Report Summary:


Number of Other Included Managers:                    0

Form 13F Information Table Entry Total:        211

Form 13F Information Table Value Total:  $         5,110,642
                                   (thousands)

List of Other Included Managers:    NONE

<PAGE>
<PAGE>
<TABLE>
                                                                  FORM 13F INFORMATION TABLE
                                                           VALUE   SHARES/  SH/ PUT/ INVSTMT    OTHER          VOTING AUTHORITY
        NAME OF ISSUER          TITLE OF 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>
3 Com Corporation              COM              885535104    74546  1586092 SH       OTHER                   24350           1561742
ADC Telecommunications         COM              000886101    43538   600000 SH       SOLE                   600000
                                                            272467  3754907 SH       OTHER                  252200           3502707
AT&T Co.                       COM              001957109      707    13922 SH       OTHER                     600             13322
AVT Corporation                COM              002420107    19975   425000 SH       SOLE                   425000
                                                             82877  1763350 SH       OTHER                  138000           1625350
Adaptive Broadband Corp.       COM              00650M104      369     5000 SH       OTHER                                      5000
Adept Tech Inc.                COM              006854103     4016   630000 SH       SOLE                   630000
                                                              6079   953500 SH       OTHER                  182000            771500
Advanced Fibre Communications  COM              00754A105    15194   340000 SH       SOLE                   340000
                                                            107093  2396450 SH       OTHER                   67500           2328950
Aeroflex Inc.                  COM              007768104     1011    97450 SH       OTHER                                     97450
Aetrium Inc.                   COM              00817R103     2440   370000 SH       SOLE                   370000
                                                              7766  1177681 SH       OTHER                  189000            988681
Alcatel ADR                    COM              013904305     6267   139266 SH       OTHER                                    139266
Anadigics Inc.                 COM              032515108    17224   365000 SH       SOLE                   365000
                                                             95958  2033527 SH       OTHER                  218000           1815527
Analog Devices Inc.            COM              032654105    23368   251266 SH       OTHER                    1800            249466
Ansys Inc.                     COM              03662Q105     3905   355000 SH       SOLE                   355000
                                                              2145   195000 SH       OTHER                  140000             55000
Applied Microsystems           COM              037935103     5346   470000 SH       SOLE                   470000
                                                              3101   272600 SH       OTHER                   90000            182600
Applied Science & Tech         COM              038236105     7810   235000 SH       SOLE                   235000
                                                             34258  1030800 SH       OTHER                  122500            908300
Artesyn Technologies           COM              043127109     8820   420000 SH       SOLE                   420000
                                                             29704  1414500 SH       OTHER                  175700           1238800
Arthrocare Corp.               COM              043136100     9299   152450 SH       OTHER                    1500            150950
Artisan Components Inc.        COM              042923102     6605   320000 SH       SOLE                   320000
                                                              7581   367300 SH       OTHER                   15000            352300
Aspect Communications          COM              04523Q102      939    24000 SH       OTHER                                     24000
Asyst Technologies Inc.        COM              04648X107     2368    36125 SH       OTHER                                     36125
BMC Software                   COM              055921100     6608    82663 SH       OTHER                   50000             32663
Best Software Inc.             COM              086579109      549    18600 SH       OTHER                                     18600
Biosite Diagnostic Inc.        COM              090945106     6800   425000 SH       SOLE                   425000
                                                             32742  2046350 SH       OTHER                  155000           1891350
Brooks Automation Inc.         COM              11434A100     6513   200000 SH       SOLE                   200000
                                                             35694  1096139 SH       OTHER                  238000            858139
Burr Brown Corp.               COM              122574106     2896    80175 SH       OTHER                                     80175
Celeritek Inc.                 COM              150926103      606    31100 SH       OTHER                   15000             16100
Centigram Comms                COM              152317103     5862   350000 SH       SOLE                   350000
                                                             19381  1157048 SH       OTHER                  140000           1017048
Cholestech Corp.               COM              170393102     2665   410000 SH       SOLE                   410000
                                                              8131  1250950 SH       OTHER                  197500           1053450
Cisco System Inc.              COM              17275R102     5356    50000 SH       SOLE                    50000
                                                             24171   225638 SH       OTHER                   60698            164940
Cognos Inc. (Canada)           COM              19244C109     4612   100000 SH       SOLE                   100000
                                                             67747  1468763 SH       OTHER                  128000           1340763
Computer Network Tech Corp.    COM              204925101    19039   830000 SH       SOLE                   830000
                                                             47992  2092260 SH       OTHER                  276500           1815760
Concord Communications Inc.    COM              206186108     3872    87250 SH       OTHER                                     87250
Conductus Inc.                 COM              206784100      240    20400 SH       OTHER                                     20400
Conexant Systems Inc.          COM              207142100     5310    80000 SH       SOLE                    80000
                                                             47558   716500 SH       OTHER                  169000            547500
Credence Systems Corp          COM              225302108     2162    25000 SH       SOLE                    25000
                                                             13715   158550 SH       OTHER                   63000             95550
Cyberoptics Corp.              COM              232517102     5225   190000 SH       SOLE                   190000
                                                             26960   980375 SH       OTHER                  152500            827875
Cylink Corp.                   COM              232565101    29902  2215000 SH       SOLE                  2215000
                                                             49469  3664370 SH       OTHER                  570000           3094370
Dallas Semiconductor           COM              235204104      290     4500 SH       OTHER                                      4500
Davox Corp.                    COM              239208101     9322   475000 SH       SOLE                   475000
                                                             11750   598750 SH       OTHER                  240000            358750
Digital Microwave              COM              253859102    71955  3070000 SH       SOLE                  3070000
                                                            198070  8450827 SH       OTHER                  861000           7589827
Dionex Corp.                   COM              254546104     4069    98800 SH       OTHER                    1800             97000
Documentum Inc.                COM              256159104     6886   115000 SH       SOLE                   115000
                                                             38125   636750 SH       OTHER                   60000            576750
EMS Technologies Inc.          COM              26873N108     2820   240000 SH       SOLE                   240000
                                                              7761   660522 SH       OTHER                   17000            643522
Eclipse Surgical Tech          COM              278849104     1696   230000 SH       SOLE                   230000
                                                              3407   462000 SH       OTHER                   38000            424000
Emcore Corp.                   COM              290846104     3400   100000 SH       SOLE                   100000
                                                              5867   172550 SH       OTHER                   10000            162550
Emulex Corp.                   COM              292475209     2250    20000 SH       SOLE                    20000
                                                                63      557 SH       OTHER                                       557
Epicor Software Corp.          COM              29426L108      759   150000 SH       SOLE                   150000
                                                              5964  1177965 SH       OTHER                  156500           1021465
Ericsson L M Tel Co. ADR Cl. B COM              294821400    15373   234025 SH       OTHER                    2000            232025
Ezenia Inc.                    COM              302311105     3175   400000 SH       SOLE                   400000
                                                              6240   786100 SH       OTHER                  208500            577600
Gene Logic Inc.                COM              368689105     9672   365000 SH       SOLE                   365000
                                                             15104   569970 SH       OTHER                   37000            532970
General Instruments            COM              370120107    14399   169400 SH       OTHER                    4000            165400
Gensym Corp.                   COM              37245R107      490    85200 SH       OTHER                   75000             10200
Glenayre Technologies Inc.     COM              377899109      113    10000 SH       OTHER                                     10000
HNC Software Inc.              COM              40425P107     8460    80000 SH       SOLE                    80000
                                                             36378   344000 SH       OTHER                   73700            270300
Hyperion Solutions             COM              44914M104     7830   180000 SH       SOLE                   180000
                                                              2002    46030 SH       OTHER                                     46030
Image Premastering Services Lt COM              000000000       15    12500 SH       OTHER                                     12500
Imclone Systems Inc.           COM              45245W109     7529   190000 SH       SOLE                   190000
                                                             15143   382150 SH       OTHER                   40000            342150
Infinium Software Inc.         COM              45662Y109     1294   190000 SH       SOLE                   190000
                                                               471    69100 SH       OTHER                   20000             49100
Input Software Inc.            COM              457654101      348    25000 SH       SOLE                    25000
                                                              6053   434300 SH       OTHER                   44500            389800
Inso Corp.                     COM              457674109     4837   150000 SH       SOLE                   150000
                                                              8914   276400 SH       OTHER                   33500            242900
Integrated Measurement System  COM              457923100     1264    89500 SH       OTHER                                     89500
Intel Corp.                    COM              458140100    11513   139873 SH       OTHER                                    139873
Inter-Tel Inc.                 COM              458372109     7500   300000 SH       SOLE                   300000
                                                              8572   342867 SH       OTHER                   40000            302867
Interim Services Inc.          COM              45868P100    13857   559875 SH       OTHER                   95000            464875
Internap Network Svcs          COM              45885A102      432     2500 SH       OTHER                                      2500
Intl. Business Machines        COM              459200101     3986    36950 SH       OTHER                     800             36150
Itron Inc.                     COM              465741106     3614   590000 SH       SOLE                   590000
                                                             14444  2358202 SH       OTHER                  405500           1952702
JDS Uniphase Corp.             COM              46612J101   198821  1232520 SH       OTHER                   94300           1138220
KLA-Tencor Corp.               COM              482480100     4232    38000 SH       OTHER                                     38000
Keane Inc.                     COM              486665102     2628    81800 SH       OTHER                    1500             80300
Keravision Inc.                COM              492061106     1225   200000 SH       SOLE                   200000
                                                              2731   445950 SH       OTHER                   45000            400950
Lam Research Corp              COM              512807108     6850    61400 SH       OTHER                   40000             21400
Larscom Inc.                   COM              51729Y108     2416   370000 SH       SOLE                   370000
                                                             10528  1611950 SH       OTHER                  120000           1491950
Laser Power Corp.              COM              51806K104       66    23000 SH       OTHER                                     23000
Lattice Semiconductor          COM              518415104    25174   534194 SH       OTHER                                    534194
Lecroy Corp.                   COM              52324W109     9028   737000 SH       SOLE                   737000
                                                             14148  1154950 SH       OTHER                  171000            983950
Lightbridge Inc.               COM              532226107    16927   610000 SH       SOLE                   610000
                                                             45775  1649550 SH       OTHER                  267500           1382050
Lucent Technologies            COM              549463107      433     5772 SH       OTHER                                      5772
MMC Networks Inc.              COM              55308N102     3437   100000 SH       SOLE                   100000
                                                             41076  1194950 SH       OTHER                   86500           1108450
Macrovision Corp.              COM              555904101    34040   460000 SH       SOLE                   460000
                                                            110428  1492273 SH       OTHER                  251900           1240373
Manugistics Group Inc.         COM              565011103      252     7800 SH       OTHER                                      7800
Mapinfo Corp.                  COM              565105103      367    10000 SH       SOLE                    10000
                                                              5452   148350 SH       OTHER                   60000             88350
Maxygen Inc.                   COM              577776107      124     1750 SH       SOLE                     1750
                                                               231     3250 SH       OTHER                                      3250
Medicis Pharmaceutical Cl A    COM              584690309    27591   648240 SH       OTHER                    5000            643240
Medtronic Inc.                 COM              585055106    48561  1332689 SH       OTHER                   80901           1251788
Micrel Inc.                    COM              594793101     1079    18950 SH       OTHER                                     18950
Micro Component Tech           COM              59479Q100      700   140000 SH       SOLE                   140000
                                                              3854   770900 SH       OTHER                  110000            660900
Microtest Inc                  COM              594941106       90    10000 SH       OTHER                                     10000
Molecular Devices              COM              60851C107    22100   425000 SH       SOLE                   425000
                                                             76877  1478405 SH       OTHER                  183000           1295405
Motorola Inc.                  COM              620076109     7421    50400 SH       OTHER                                     50400
National Instruments           COM              636518102     9579   250425 SH       OTHER                    3750            246675
Natl Computer Systems          COM              635519101     9406   250000 SH       SOLE                   250000
                                                             79822  2121525 SH       OTHER                  191500           1930025
Netmanage Inc.                 COM              641144100     2667   540000 SH       SOLE                   540000
                                                             17678  3579899 SH       OTHER                  260000           3319899
Netrix Corp.                   COM              641148101     1793   120000 SH       SOLE                   120000
                                                              7001   468650 SH       OTHER                   95000            373650
Netsilicon Inc.                COM              64115X105      999    49800 SH       OTHER                                     49800
Network Equipment Technologies COM              641208103     1299   110000 SH       SOLE                   110000
                                                              3665   310225 SH       OTHER                                    310225
Norstan Inc.                   COM              656535101     1211   190000 SH       SOLE                   190000
                                                              1860   291800 SH       OTHER                  140000            151800
Nortel Networks Corp.          COM              656569100     1010    10000 SH       SOLE                    10000
                                                             61655   610450 SH       OTHER                    2500            607950
Novellus Systems Inc           COM              670008101     4429    36150 SH       OTHER                                     36150
On Assignment Inc.             COM              682159108    10004   334850 SH       OTHER                   63800            271050
PMC-Sierra Inc.                COM              69344F106    17634   110000 SH       SOLE                   110000
                                                             27968   174460 SH       OTHER                   54000            120460
Peoplesoft Inc.                COM              712713106     3642   170875 SH       OTHER                   99000             71875
Pharmaprint Inc.               COM              716950100       13    10100 SH       OTHER                                     10100
Power Integrations Inc.        COM              739276103    10506   219150 SH       OTHER                   18000            201150
Project Software & Dev         COM              74339P101    32745   590000 SH       SOLE                   590000
                                                             66487  1197958 SH       OTHER                  276600            921358
Protocol Systems Inc.          COM              74371R106      180    20000 SH       SOLE                    20000
                                                              2022   224625 SH       OTHER                    4000            220625
Proxim Inc.                    COM              744284100    12650   115000 SH       SOLE                   115000
                                                            128611  1169190 SH       OTHER                  140000           1029190
RF Monolithics Inc.            COM              74955F106      960   160000 SH       SOLE                   160000
                                                              1657   276200 SH       OTHER                   30000            246200
Rational Software Corp.        COM              75409P202    64354  1310000 SH       SOLE                  1310000
                                                            222746  4534270 SH       OTHER                  350800           4183470
SDL Inc.                       COM              784076101   111180   510000 SH       SOLE                   510000
                                                            616412  2827576 SH       OTHER                  247900           2579676
Sanmina Corp.                  COM              800907107      559     5600 SH       OTHER                     500              5100
Semtech Corp.                  COM              816850101    11692   224300 SH       OTHER                  160000             64300
Serena Software Inc.           COM              817492101    30668   991275 SH       OTHER                   60000            931275
Spectrian Corp.                COM              847608106    21187   750000 SH       SOLE                   750000
                                                             49521  1752950 SH       OTHER                  232000           1520950
Sprint Corp. Fon Group         COM              852061100      653     9700 SH       OTHER                                      9700
Stac Software Inc.             COM              852323203      694   110000 SH       SOLE                   110000
                                                              3185   504550 SH       OTHER                   15000            489550
Steris Corp.                   COM              859152100     7160   698500 SH       OTHER                    5500            693000
Sycamore Networks              COM              871206108     1078     3500 SH       SOLE                     3500
                                                              2002     6500 SH       OTHER                                      6500
Symbol Technologies            COM              871508107     8647   136036 SH       OTHER                   10500            125536
Synopsys Inc.                  COM              871607107     6675   100000 SH       SOLE                   100000
                                                             37411   560466 SH       OTHER                   14600            545866
Techne Corp.                   COM              878377100    23126   420000 SH       SOLE                   420000
                                                            116430  2114495 SH       OTHER                  228000           1886495
Technology Solutions           COM              87872T108     9170   280000 SH       SOLE                   280000
                                                             46647  1424325 SH       OTHER                  175750           1248575
Tekelec                        COM              879101103     7200   320000 SH       SOLE                   320000
                                                             48722  2165411 SH       OTHER                  225000           1940411
Tellabs Inc.                   COM              879664100     6419   100000 SH       SOLE                   100000
                                                            152466  2375300 SH       OTHER                   23600           2351700
Teradyne Inc.                  COM              880770102    16226   245850 SH       OTHER                    3000            242850
US Oncology Inc.               COM              90338W103     1274   257950 SH       OTHER                                    257950
Valuevision Intl. Cl A         COM              92047K107    11463   200000 SH       SOLE                   200000
                                                             61455  1072275 SH       OTHER                  116300            955975
Ventana Medical Systems        COM              92276H106     7089   285000 SH       SOLE                   285000
                                                             28006  1125850 SH       OTHER                   65200           1060650
Vitesse Semiconductor          COM              928497106    10488   200000 SH       SOLE                   200000
                                                             66028  1259170 SH       OTHER                  119900           1139270
Warner Chilcott ADR            COM              934435207     1554   152500 SH       SOLE                   152500
                                                              4113   403700 SH       OTHER                   60000            343700
Wells Fargo & Co.              COM              949746101      371     9170 SH       OTHER                                      9170
Williams Companies             COM              969457100     1305    42700 SH       OTHER                    1200             41500
World Access Inc.              COM              98141A101     1540    80000 SH       SOLE                    80000
                                                              5538   287691 SH       OTHER                  110344            177347
Zygo Corp.                     COM              989855101    11974   595000 SH       SOLE                   595000
                                                             44363  2204350 SH       OTHER                  338500           1865850
</TABLE>


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