<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: 3/31/99
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Check Here if Amendment / /; Amendment Number:
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This Amendment (Check only one.): / / is a restatement.
/ / adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Mairs and Power, Inc.
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Address: 332 Minnesota St. # W-1420
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St. Paul, MN 55101
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Form 13F File Number: 28-
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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: William B. Frels
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Title: Compliance Officer
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Phone: 651-222-8478
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Signature, Place, and Date of Signing:
St. Paul, MN 5/13/99
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[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.)
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/ / 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).)
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Form 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
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Form 13F Information Table Entry Total: 115
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Form 13F Information Table Value Total: $ 767,894
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(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.
[If there are no entries in this list, state "NONE" and omit the column headings
and list entries.]
No. Form 13F File Number Name
28-
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[Repeat as necessary.]
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<TABLE>
<CAPTION>
FORM 13F
Mairs and Power, Inc.
Discretionary Clients' Holdings as of 03-31-99
Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Item 7 Item 8
Title of Market
Name of Issuer Class CUSIP Value Shares SH/PRN Invstmt Managers Voting
Discr Authority
SOLE
<S> <C> <C> <C> <C> <C> <C> <C> <C>
COMMON STOCK
ADC Telecom COM 00088610 36,850,516 772,750 SHR SOLE 772,750
Abbott Laboratories COM 00282410 1,109,456 23,700 SHR SOLE 23,700
Aegon NV COM 00792410 596,746 6,640 SHR SOLE 6,640
Allstate Corp COM 02000210 540,223 14,576 SHR SOLE 14,576
Am Home Products COM 02660910 1,868,369 28,634 SHR SOLE 28,634
American Express COM 02581610 936,230 7,951 SHR SOLE 7,951
American Greetings COM 02637510 1,654,450 65,200 SHR SOLE 65,200
American Int'l Group COM 02687410 994,252 8,242 SHR SOLE 8,242
Amgen COM 03116210 404,325 5,400 SHR SOLE 5,400
AMP Inc COM 03189710 1,101,244 20,584 SHR SOLE 20,584
Archer-Daniels COM 03948310 281,181 19,144 SHR SOLE 19,144
AT & T COM 00195710 841,776 10,547 SHR SOLE 10,547
Automatic Data Proc COM 05301510 372,375 9,000 SHR SOLE 9,000
Bankamerica Corp COM 06605010 2,281,606 32,306 SHR SOLE 32,306
Baxter International COM 07181310 22,169,730 335,905 SHR SOLE 335,905
Bemis COM 08143710 14,913,106 480,100 SHR SOLE 480,100
Bestfoods COM 08658U10 211,124 4,492 SHR SOLE 4,492
BMC Industries COM 05560710 5,020,920 1,131,475 SHR SOLE 1,131,475
BP Amoco PLC ADR COM 4,109,627 40,689 SHR SOLE 40,689
Briggs & Stratton COM 10904310 295,875 6,000 SHR SOLE 6,000
Bristol-Myers Squibb COM 11012210 5,351,360 83,452 SHR SOLE 83,452
Burlington Northern COM 12189T10 15,814,519 481,050 SHR SOLE 481,050
Burlington Resources COM 12201410 1,829,018 45,797 SHR SOLE 45,797
Cardinal Health COM 644,028 9,758 SHR SOLE 9,758
Ceridian COM 15677T10 15,681,656 428,900 SHR SOLE 428,900
Chevron COM 16675110 769,729 8,673 SHR SOLE 8,673
Cisco COM 17275R10 1,251,423 11,422 SHR SOLE 11,422
<PAGE>
<CAPTION>
FORM 13F
Mairs and Power, Inc.
Discretionary Clients' Holdings as of 03-31-99
Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Item 7 Item 8
Title of Market
Name of Issuer Class CUSIP Value Shares SH/PRN Invstmt Managers Voting
Discr Authority
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Community First Bankshares COM 20390210 500,000 25,000 SHR SOLE 25,000
Cooper Industries COM 21666910 279,450 6,556 SHR SOLE 6,556
Corning COM 21935010 6,626,280 110,438 SHR SOLE 110,438
Covance Inc. COM 22281610 292,605 11,675 SHR SOLE 11,675
Dayton Hudson COM 23975310 31,288,433 469,620 SHR SOLE 469,620
Delta Air Lines COM 24736110 1,517,602 21,836 SHR SOLE 21,836
Deluxe Corp COM 24801910 16,587,416 569,525 SHR SOLE 569,525
Donaldson COM 25765110 12,620,592 701,144 SHR SOLE 701,144
Eastman Kodak COM 27746110 255,500 4,000 SHR SOLE 4,000
Ecolab Inc COM 27886510 20,457,301 576,262 SHR SOLE 576,262
Emerson Electric COM 29101110 22,983,345 434,160 SHR SOLE 434,160
Enron Corp COM 29356110 415,698 6,470 SHR SOLE 6,470
Exxon Corp COM 30229010 1,665,134 23,598 SHR SOLE 23,598
Federal Natl Mtge COM 31358610 209,135 3,020 SHR SOLE 3,020
Firstar COM 33761C10 2,868,357 32,049 SHR SOLE 32,049
Firstar Corporation COM 680,200 7,600 SHR SOLE 7,600
G & K Services Cl A COM 36126810 1,630,419 35,300 SHR SOLE 35,300
General Binding COM 36915410 389,063 15,000 SHR SOLE 15,000
General Electric COM 36960410 1,599,195 14,456 SHR SOLE 14,456
General Mills COM 37033410 21,482,797 284,305 SHR SOLE 284,305
General Motors COM 37044210 206,103 2,369 SHR SOLE 2,369
Genuine Parts COM 37246010 432,188 15,000 SHR SOLE 15,000
Gillette Company COM 37576610 303,131 5,100 SHR SOLE 5,100
Graco Inc COM 38410910 18,900,238 856,668 SHR SOLE 856,668
GTE Corp COM 36232010 2,534,164 41,887 SHR SOLE 41,887
HB Fuller COM 35969410 19,172,369 325,300 SHR SOLE 325,300
Hershey COM 42786610 714,236 12,740 SHR SOLE 12,740
Hewlett-Packard COM 42823610 232,936 3,435 SHR SOLE 3,435
Honeywell Inc COM 43850610 26,335,746 347,380 SHR SOLE 347,380
Hormel COM 44045210 22,598,719 634,350 SHR SOLE 634,350
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<CAPTION>
FORM 13F
Mairs and Power, Inc.
Discretionary Clients' Holdings as of 03-31-99
Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Item 7 Item 8
Title of Market
Name of Issuer Class CUSIP Value Shares SH/PRN Invstmt Managers Voting
Discr Authority
<S> <C> <C> <C> <C> <C> <C> <C> <C>
IBM COM 45920010 2,833,696 15,987 SHR SOLE 15,987
Imation COM 45245A10 6,307,488 382,272 SHR SOLE 382,272
Ingersoll Rand COM 45686610 506,175 10,200 SHR SOLE 10,200
Intel COM 45814010 2,294,525 19,302 SHR SOLE 19,302
Intl Flavors/Fragr COM 45950610 316,464 8,425 SHR SOLE 8,425
J.P. Morgan COM 61688010 1,253,613 10,161 SHR SOLE 10,161
Jefferson-Pilot COM 47507010 342,951 5,062 SHR SOLE 5,062
Johnson & Johnson COM 47816010 28,177,254 301,361 SHR SOLE 301,361
Jostens Inc COM 48108810 11,396,906 536,325 SHR SOLE 536,325
Kimberly-Clark COM 49436810 3,005,681 62,700 SHR SOLE 62,700
Laboratory Corp of Am COM 50540R10 37,625 21,500 SHR SOLE 21,500
Lucent Tech COM 54946310 493,560 4,570 SHR SOLE 4,570
Medtronic Inc COM 58505510 32,948,219 458,410 SHR SOLE 458,410
Merck & Co COM 58933110 2,269,140 28,320 SHR SOLE 28,320
Merrill Corp COM 59017510 16,855,175 1,260,200 SHR SOLE 1,260,200
Merrill Lynch COM 59018810 1,419,098 16,035 SHR SOLE 16,035
MicroEar COM 33,472 334,722 SHR SOLE 334,722
Minnesota Mining COM 60405910 22,647,500 320,106 SHR SOLE 320,106
Mobil Corp COM 60705910 1,738,528 19,756 SHR SOLE 19,756
Monsanto COM 61166210 281,138 6,120 SHR SOLE 6,120
Motorola COM 62007610 1,311,175 17,900 SHR SOLE 17,900
MTS Systems COM 55377710 16,100,775 1,590,200 SHR SOLE 1,590,200
Murphy Oil COM 62671710 402,550 9,700 SHR SOLE 9,700
Natl Computer Sys COM 63551910 17,444,490 712,020 SHR SOLE 712,020
Nokia COM 65490220 280,350 1,800 SHR SOLE 1,800
Northern States Pwr COM 66577210 223,991 9,660 SHR SOLE 9,660
Osmonics COM 68835010 103,981 13,100 SHR SOLE 13,100
Pacific Centy Finl Corp. COM 69405810 1,148,125 55,000 SHR SOLE 55,000
Pentair Inc COM 70963110 1,363,500 40,400 SHR SOLE 40,400
Pfizer Inc COM 71708110 33,508,125 241,500 SHR SOLE 241,500
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<CAPTION>
FORM 13F
Mairs and Power, Inc.
Discretionary Clients' Holdings as of 03-31-99
Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Item 7 Item 8
Title of Market
Name of Issuer Class CUSIP Value Shares SH/PRN Invstmt Managers Voting
Discr Authority
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Procter & Gamble COM 74271810 525,533 5,366 SHR SOLE 5,366
Providian Financial COM 74406A10 600,160 5,456 SHR SOLE 5,456
ReliaStar COM 75952U10 19,228,138 451,100 SHR SOLE 451,100
Royal Dutch Petrol COM 78025780 1,357,200 26,100 SHR SOLE 26,100
Schlumberger Ltd COM 80685710 3,895,335 64,720 SHR SOLE 64,720
Sigma Aldrich COM 82655210 669,825 22,900 SHR SOLE 22,900
Silicon Graphics COM 82705610 1,227,281 74,100 SHR SOLE 74,100
St. Jude Medical COM 79084910 11,982,141 491,575 SHR SOLE 491,575
St. Paul Cos COM 79286010 18,169,761 584,942 SHR SOLE 584,942
Sturm Ruger COM 86415910 390,000 39,000 SHR SOLE 39,000
Super Valu COM 86853610 14,260,125 691,400 SHR SOLE 691,400
TCF Financial COM 87227510 19,226,984 737,726 SHR SOLE 737,726
Toro COM 89109210 13,805,251 440,008 SHR SOLE 440,008
TSI Inc COM 87287610 9,718,353 1,196,105 SHR SOLE 1,196,105
United Healthcare COM 91058110 336,800 6,400 SHR SOLE 6,400
US Bancorp COM 90297310 22,688,895 666,096 SHR SOLE 666,096
US West Inc New COM 91273H10 885,185 16,076 SHR SOLE 16,076
Wells Fargo & Co COM 66938010 31,904,315 909,927 SHR SOLE 909,927
Weyerhaeuser COM 96216610 15,660,102 282,164 SHR SOLE 282,164
767,249,870 22,912,605 22,912,605
PREFERRED STOCK
Barclays Pfd. E 06738C83 624,219 23,500 SHR SOLE 23,500
624,219 23,500 23,500
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<CAPTION>
FORM 13F
Mairs and Power, Inc.
Discretionary Clients' Holdings as of 03-31-99
Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Item 7 Item 8
Title of Market
Name of Issuer Class CUSIP Value Shares SH/PRN Invstmt Managers Voting
Discr Authority
<S> <C> <C> <C> <C> <C> <C> <C> <C>
MUTUAL FUNDS
Fidelity Eq Income II 253,339 8,295 SHR SOLE 8,295
Fidelity Magellan 394,899 3,044 SHR SOLE 3,044
New Perspective Fund 64801810 211,386 8,692 SHR SOLE 8,692
Paine Webber US Govt Income Fu 146,301 16,383 SHR SOLE 16,383
SIT Large Cap Growth Fund 82979710 262,836 5,042 SHR SOLE 5,042
SIT MN Tax Free Income Fund 82979K10 441,456 41,844 SHR SOLE 41,844
SIT Mid Cap Growth Fund 82979610 180,504 13,800 SHR SOLE 13,800
Vanguard Index Tr 500 92290810 329,615 2,772 SHR SOLE 2,772
20,031 99,872 20,031
GRAND TOTALS 767,894,120 23,035,977 22,956,136
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