The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3M CO COM 88579Y101 136,253 915,187 SH   SOLE   594,331 0 320,856
AAR CORP COM 000361105 16,839 347,705 SH   SOLE   347,705 0 0
ABBOTT LABS COM 002824100 173,188 1,463,229 SH   SOLE   1,055,609 0 407,619
ABBVIE INC COM 00287Y109 8,070 49,781 SH   SOLE   21,837 0 27,944
ACCENTURE PLC IRELAND SHS CLASS A G1151C101 267 791 SH   SOLE   370 0 421
ACTIVISION BLIZZARD INC COM 00507V109 4,953 61,823 SH   SOLE   26,176 0 35,647
ADOBE SYSTEMS INCORPORATED COM 00724F101 599 1,314 SH   SOLE   14 0 1,300
ADVANCED MICRO DEVICES INC COM 007903107 204 1,864 SH   SOLE   1,532 0 332
ALERUS FINL CORP COM 01446U103 3,905 141,296 SH   SOLE   141,296 0 0
ALLETE INC COM NEW 018522300 1,228 18,338 SH   SOLE   9,080 0 9,258
ALLIANT ENERGY CORP COM 018802108 48,349 773,831 SH   SOLE   632,533 0 141,298
ALPHABET INC CAP STK CL A 02079K305 3,694 1,328 SH   SOLE   1,145 0 183
ALPHABET INC CAP STK CL C 02079K107 643,212 230,295 SH   SOLE   192,798 0 37,497
ALTRIA GROUP INC COM 02209S103 286 5,473 SH   SOLE   2,973 0 2,500
AMAZON COM INC COM 023135106 399,096 122,424 SH   SOLE   109,993 0 12,431
AMCOR PLC ORD G0250X107 2,406 212,383 SH   SOLE   117,999 0 94,384
AMERICAN EXPRESS CO COM 025816109 62,900 336,362 SH   SOLE   186,039 0 150,323
AMERICAN TOWER CORP NEW COM 03027X100 509 2,025 SH   SOLE   5 0 2,020
AMERIPRISE FINL INC COM 03076C106 653 2,175 SH   SOLE   1,523 0 652
AMGEN INC COM 031162100 2,102 8,692 SH   SOLE   6,071 0 2,621
APPLE INC COM 037833100 24,100 138,024 SH   SOLE   66,709 0 71,315
APPLIED MATLS INC COM 038222105 484 3,675 SH   SOLE   2,198 0 1,477
ASSOCIATED BANC CORP COM 045487105 7,831 344,057 SH   SOLE   344,057 0 0
AT&T INC COM 00206R102 627 26,518 SH   SOLE   7,841 0 18,677
AUTOMATIC DATA PROCESSING IN COM 053015103 7,514 33,022 SH   SOLE   29,982 0 3,040
AXOGEN INC COM 05463X106 207 26,042 SH   SOLE   26,042 0 0
AZEK CO INC CL A 05478C105 7,614 306,536 SH   SOLE   306,536 0 0
BADGER METER INC COM 056525108 17,720 177,718 SH   SOLE   84,068 0 93,650
BAXTER INTL INC COM 071813109 39,889 514,428 SH   SOLE   371,244 0 143,184
BECTON DICKINSON & CO COM 075887109 1,091 4,101 SH   SOLE   1,983 0 2,118
BERKSHIRE HATHAWAY INC DEL CL A 084670108 3,702 7 SH   SOLE   7 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,447 23,934 SH   SOLE   6,416 0 17,518
BIOGEN INC COM 09062X103 216 1,025 SH   SOLE   750 0 275
BIO-TECHNE CORP COM 09073M104 284,924 657,962 SH   SOLE   529,203 0 128,759
BK OF AMERICA CORP COM 060505104 496 12,044 SH   SOLE   2,250 0 9,794
BLACK HILLS CORP COM 092113109 9,306 120,826 SH   SOLE   117,258 0 3,568
BLACKSTONE INC COM 09260D107 308 2,427 SH   SOLE   2,027 0 400
BOEING CO COM 097023105 564 2,944 SH   SOLE   2,092 0 852
BOSTON SCIENTIFIC CORP COM 101137107 236 5,337 SH   SOLE   5,337 0 0
BRISTOL-MYERS SQUIBB CO COM 110122108 5,022 68,771 SH   SOLE   25,427 0 43,344
C H ROBINSON WORLDWIDE INC COM NEW 12541W209 142,762 1,325,428 SH   SOLE   1,039,641 0 285,787
CAMBIUM NETWORKS CORP SHS G17766109 4,469 189,042 SH   SOLE   189,042 0 0
CARRIER GLOBAL CORPORATION COM 14448C104 256 5,571 SH   SOLE   2,076 0 3,495
CASEYS GEN STORES INC COM 147528103 14,325 72,285 SH   SOLE   72,285 0 0
CATALENT INC COM 148806102 13,748 123,970 SH   SOLE   123,970 0 0
CATERPILLAR INC COM 149123101 1,698 7,620 SH   SOLE   2,269 0 5,351
CEMEX SAB DE CV SPON ADR NEW 151290889 90 17,000 SH   SOLE   0 0 17,000
CHEVRON CORP NEW COM 166764100 7,648 46,969 SH   SOLE   15,409 0 31,560
CINTAS CORP COM 172908105 1,636 3,845 SH   SOLE   1,479 0 2,366
CISCO SYS INC COM 17275R102 1,939 34,780 SH   SOLE   9,069 0 25,711
CMC MATERIALS INC COM 12571T100 4,497 24,253 SH   SOLE   24,253 0 0
COCA COLA CO COM 191216100 1,791 28,888 SH   SOLE   15,375 0 13,513
COMCAST CORP NEW CL A 20030N101 318 6,800 SH   SOLE   3,537 0 3,263
CONOCOPHILLIPS COM 20825C104 1,247 12,473 SH   SOLE   2,588 0 9,885
CORE LABORATORIES N V COM N22717107 275 8,685 SH   SOLE   435 0 8,250
CORNING INC COM 219350105 15,573 421,905 SH   SOLE   177,350 0 244,555
COSTCO WHSL CORP NEW COM 22160K105 1,830 3,178 SH   SOLE   1,574 0 1,604
CSX CORP COM 126408103 747 19,949 SH   SOLE   4,612 0 15,337
CULLEN FROST BANKERS INC COM 229899109 18,944 136,871 SH   SOLE   120,740 0 16,131
CUMMINS INC COM 231021106 270 1,314 SH   SOLE   264 0 1,050
CVRX INC COM 126638105 543 90,638 SH   SOLE   90,638 0 0
CYBEROPTICS CORP COM 232517102 3,110 76,639 SH   SOLE   76,639 0 0
DANAHER CORPORATION COM 235851102 370 1,260 SH   SOLE   979 0 281
DEERE & CO COM 244199105 497 1,196 SH   SOLE   132 0 1,064
DELUXE CORP COM 248019101 899 29,719 SH   SOLE   26,910 0 2,809
DIGI INTL INC COM 253798102 53,114 2,468,136 SH   SOLE   2,111,327 0 356,809
DISNEY WALT CO COM 254687106 130,545 951,774 SH   SOLE   725,160 0 226,614
DOMINION ENERGY INC COM 25746U109 473 5,564 SH   SOLE   2,182 0 3,382
DONALDSON INC COM 257651109 171,847 3,309,202 SH   SOLE   2,624,460 0 684,742
DUKE ENERGY CORP NEW COM NEW 26441C204 267 2,392 SH   SOLE   834 0 1,558
ECOLAB INC COM 278865100 319,054 1,807,055 SH   SOLE   1,479,998 0 327,057
ELANCO ANIMAL HEALTH INC COM 28414H103 10,854 416,032 SH   SOLE   331,640 0 84,392
EMERSON ELEC CO COM 291011104 9,965 101,633 SH   SOLE   53,784 0 47,849
ENERPAC TOOL GROUP CORP CL A COM 292765104 5,741 262,286 SH   SOLE   262,286 0 0
ENTEGRIS INC COM 29362U104 69,820 531,920 SH   SOLE   504,740 0 27,180
ENTERPRISE PRODS PARTNERS L COM 293792107 222 8,600 SH   SOLE   8,600 0 0
ENVESTNET INC COM 29404K106 7,288 97,901 SH   SOLE   97,901 0 0
EXXON MOBIL CORP COM 30231G102 3,522 42,648 SH   SOLE   21,388 0 21,260
FASTENAL CO COM 311900104 192,369 3,238,528 SH   SOLE   2,533,807 0 704,721
FIRST INTST BANCSYSTEM INC COM CL A 32055Y201 8,081 219,773 SH   SOLE   214,044 0 5,729
FISERV INC COM 337738108 205,921 2,030,783 SH   SOLE   1,614,247 0 416,536
FORD MTR CO DEL COM 345370860 254 15,000 SH   SOLE   15,000 0 0
FULLER H B CO COM 359694106 169,098 2,559,376 SH   SOLE   2,200,635 0 358,741
GENERAC HLDGS INC COM 368736104 25,143 84,583 SH   SOLE   60,777 0 23,806
GENERAL MLS INC COM 370334104 20,833 307,642 SH   SOLE   151,662 0 155,980
GENTHERM INC COM 37253A103 27,754 379,977 SH   SOLE   321,543 0 58,434
GENUINE PARTS CO COM 372460105 214 1,700 SH   SOLE   1,700 0 0
GLACIER BANCORP INC NEW COM 37637Q105 13,955 277,537 SH   SOLE   277,537 0 0
GRACO INC COM 384109104 288,060 4,131,668 SH   SOLE   3,280,826 0 850,842
HAWKINS INC COM 420261109 611 13,320 SH   SOLE   320 0 13,000
HERSHEY CO COM 427866108 17,273 79,737 SH   SOLE   76,652 0 3,085
HOME DEPOT INC COM 437076102 124,646 416,417 SH   SOLE   314,216 0 102,201
HONEYWELL INTL INC COM 438516106 138,886 713,774 SH   SOLE   464,110 0 249,664
HORMEL FOODS CORP COM 440452100 258,856 5,022,430 SH   SOLE   4,161,137 0 861,293
HP INC COM 40434L105 224 6,171 SH   SOLE   5,881 0 290
HUB GROUP INC CL A 443320106 9,280 120,187 SH   SOLE   120,187 0 0
HUNTINGTON BANCSHARES INC COM 446150104 278 19,032 SH   SOLE   14,457 0 4,575
HYLIION HOLDINGS CORP COMMON STOCK 449109107 765 172,767 SH   SOLE   172,767 0 0
IDEXX LABS INC COM 45168D104 1,925 3,518 SH   SOLE   576 0 2,942
ILLINOIS TOOL WKS INC COM 452308109 450 2,151 SH   SOLE   1,375 0 776
INSPIRE MED SYS INC COM 457730109 33,996 132,439 SH   SOLE   130,011 0 2,428
INTEL CORP COM 458140100 9,962 201,005 SH   SOLE   73,851 0 127,154
INTERNATIONAL BUSINESS MACHS COM 459200101 481 3,702 SH   SOLE   1,182 0 2,520
INTRICON CORP COM 46121H109 6,415 268,845 SH   SOLE   268,845 0 0
INVESCO QQQ TR UNIT SER 1 46090E103 1,027 2,832 SH   SOLE   1,774 0 1,058
ISHARES TR CORE S&P SCP ETF 464287804 422 3,915 SH   SOLE   2,041 0 1,874
ISHARES TR MSCI EAFE ETF 464287465 496 6,745 SH   SOLE   5,879 0 866
ISHARES TR CORE MSCI EAFE 46432F842 349 5,022 SH   SOLE   1,204 0 3,818
ISHARES TR CORE S&P500 ETF 464287200 1,843 4,062 SH   SOLE   1,219 0 2,843
ISHARES TR RUS MID CAP ETF 464287499 424 5,439 SH   SOLE   2,879 0 2,560
JAMF HLDG CORP COM 47074L105 58,692 1,686,077 SH   SOLE   1,480,763 0 205,314
JOHN BEAN TECHNOLOGIES CORP COM 477839104 2,057 17,365 SH   SOLE   17,365 0 0
JOHNSON & JOHNSON COM 478160104 275,605 1,555,068 SH   SOLE   1,209,620 0 345,448
JPMORGAN CHASE & CO COM 46625H100 68,870 505,206 SH   SOLE   428,106 0 77,100
KELLOGG CO COM 487836108 401 6,225 SH   SOLE   2,846 0 3,379
KIMBERLY-CLARK CORP COM 494368103 3,054 24,794 SH   SOLE   10,244 0 14,550
LILLY ELI & CO COM 532457108 186,573 651,512 SH   SOLE   492,911 0 158,601
LITTELFUSE INC COM 537008104 208,394 835,547 SH   SOLE   706,311 0 129,236
LOCKHEED MARTIN CORP COM 539830109 224 508 SH   SOLE   508 0 0
LOWES COS INC COM 548661107 1,453 7,185 SH   SOLE   3,442 0 3,743
MARATHON PETE CORP COM 56585A102 214 2,500 SH   SOLE   0 0 2,500
MARCUS CORP DEL COM 566330106 10,403 587,730 SH   SOLE   587,730 0 0
MARSH & MCLENNAN COS INC COM 571748102 389 2,284 SH   SOLE   1,084 0 1,200
MASTERCARD INCORPORATED CL A 57636Q104 525 1,469 SH   SOLE   351 0 1,118
MCCORMICK & CO INC COM NON VTG 579780206 269 2,700 SH   SOLE   2,700 0 0
MCDONALDS CORP COM 580135101 3,524 14,251 SH   SOLE   11,158 0 3,093
MEDTRONIC PLC SHS G5960L103 292,201 2,633,624 SH   SOLE   2,147,709 0 485,915
MERCK & CO INC COM 58933Y105 4,935 60,145 SH   SOLE   27,320 0 32,825
META PLATFORMS INC CL A 30303M102 580 2,608 SH   SOLE   2,542 0 66
MGP INGREDIENTS INC NEW COM 55303J106 6,211 72,570 SH   SOLE   72,570 0 0
MICROSOFT CORP COM 594918104 633,513 2,054,792 SH   SOLE   1,797,963 0 256,829
MONDELEZ INTL INC CL A 609207105 227 3,609 SH   SOLE   2,868 0 741
MOTOROLA SOLUTIONS INC COM NEW 620076307 187,876 775,708 SH   SOLE   671,348 0 104,360
NANO DIMENSION LTD SPONSORD ADS NEW 63008G203 36 10,000 SH   SOLE   10,000 0 0
NEXTERA ENERGY INC COM 65339F101 453 5,351 SH   SOLE   1,509 0 3,842
NIKE INC CL B 654106103 600 4,458 SH   SOLE   4,058 0 400
NORFOLK SOUTHN CORP COM 655844108 1,239 4,343 SH   SOLE   1,062 0 3,281
NORTHERN TR CORP COM 665859104 61,242 525,908 SH   SOLE   486,698 0 39,210
NORTHWESTERN CORP COM NEW 668074305 7,383 122,047 SH   SOLE   118,068 0 3,979
NOVARTIS AG SPONSORED ADR 66987V109 203 2,309 SH   SOLE   500 0 1,809
NUVEEN MINN QUALITY MUN INM SHS 670734102 464 31,200 SH   SOLE   31,200 0 0
NVE CORP COM NEW 629445206 365 6,710 SH   SOLE   870 0 5,840
NVENT ELECTRIC PLC SHS G6700G107 132,799 3,818,268 SH   SOLE   3,295,198 0 523,070
NVIDIA CORPORATION COM 67066G104 262,881 963,429 SH   SOLE   801,066 0 162,363
OLD NATL BANCORP IND COM 680033107 42,900 2,619,073 SH   SOLE   2,311,285 0 307,788
ORACLE CORP COM 68389X105 2,288 27,660 SH   SOLE   4,989 0 22,671
OSHKOSH CORP COM 688239201 14,434 143,405 SH   SOLE   143,405 0 0
OTIS WORLDWIDE CORP COM 68902V107 230 2,984 SH   SOLE   834 0 2,150
OTTER TAIL CORP COM 689648103 238 3,800 SH   SOLE   2,000 0 1,800
PATTERSON COS INC COM 703395103 548 16,930 SH   SOLE   8,400 0 8,530
PAYCHEX INC COM 704326107 782 5,730 SH   SOLE   1,742 0 3,988
PENTAIR PLC SHS G7S00T104 9,972 183,948 SH   SOLE   108,528 0 75,420
PEPSICO INC COM 713448108 2,086 12,464 SH   SOLE   8,656 0 3,808
PFIZER INC COM 717081103 31,075 600,252 SH   SOLE   311,750 0 288,502
PHILIP MORRIS INTL INC COM 718172109 406 4,323 SH   SOLE   1,598 0 2,725
PHILLIPS 66 COM 718546104 404 4,682 SH   SOLE   2,482 0 2,200
PHYSICIANS RLTY TR COM 71943U104 9,194 524,186 SH   SOLE   495,786 0 28,400
PLEXUS CORP COM 729132100 9,725 118,869 SH   SOLE   118,869 0 0
PLUG POWER INC COM NEW 72919P202 286 10,000 SH   SOLE   10,000 0 0
POLARIS INC COM 731068102 49,462 469,638 SH   SOLE   410,660 0 58,978
PRINCIPAL FINANCIAL GROUP IN COM 74251V102 104,666 1,425,775 SH   SOLE   1,110,816 0 314,959
PROCTER AND GAMBLE CO COM 742718109 25,938 169,754 SH   SOLE   80,443 0 89,311
PROTO LABS INC COM 743713109 4,824 91,198 SH   SOLE   68,692 0 22,506
QCR HOLDINGS INC COM 74727A104 8,837 156,152 SH   SOLE   156,152 0 0
QUALCOMM INC COM 747525103 185,847 1,216,118 SH   SOLE   1,028,925 0 187,193
RAYTHEON TECHNOLOGIES CORP COM 75513E101 1,065 10,755 SH   SOLE   2,843 0 7,912
ROCKWELL AUTOMATION INC COM 773903109 65,619 234,328 SH   SOLE   224,015 0 10,313
SALESFORCE COM INC COM 79466L302 83,217 391,941 SH   SOLE   345,445 0 46,496
SASOL LTD SPONSORED ADR 803866300 208 8,595 SH   SOLE   0 0 8,595
SCHLUMBERGER LTD COM STK 806857108 216 5,228 SH   SOLE   2,628 0 2,600
SCHWAB CHARLES CORP COM 808513105 164,131 1,946,761 SH   SOLE   1,689,813 0 256,948
SCHWAB STRATEGIC TR US BRD MKT ETF 808524102 4,845 90,740 SH   SOLE   31,020 0 59,720
SCHWAB STRATEGIC TR INTL EQTY ETF 808524805 1,579 43,000 SH   SOLE   3,000 0 40,000
SELECT SECTOR SPDR TR TECHNOLOGY 81369Y803 549 3,452 SH   SOLE   1,052 0 2,400
SHERWIN WILLIAMS CO COM 824348106 142,733 571,800 SH   SOLE   519,961 0 51,839
SHYFT GROUP INC COM 825698103 490 13,557 SH   SOLE   13,557 0 0
SKYWATER TECHNOLOGY INC COM 83089J108 2,215 204,511 SH   SOLE   204,511 0 0
SLEEP NUMBER CORP COM 83125X103 28,053 553,202 SH   SOLE   477,565 0 75,637
SNAP ON INC COM 833034101 1,956 9,519 SH   SOLE   5,385 0 4,134
SONY GROUP CORPORATION SPONSORED ADR 835699307 356 3,470 SH   SOLE   470 0 3,000
SOUTHERN CO COM 842587107 254 3,500 SH   SOLE   1,400 0 2,100
SPDR S&P 500 ETF TR TR UNIT 78462F103 15,802 34,989 SH   SOLE   28,449 0 6,540
STARBUCKS CORP COM 855244109 892 9,805 SH   SOLE   9,555 0 250
STATE STR CORP COM 857477103 205 2,357 SH   SOLE   1,340 0 1,017
SUPERIOR INDS INTL INC COM 868168105 58 12,500 SH   SOLE   0 0 12,500
SURMODICS INC COM 868873100 3,246 71,604 SH   SOLE   71,604 0 0
SYSCO CORP COM 871829107 123,427 1,511,657 SH   SOLE   1,347,332 0 164,325
TARGET CORP COM 87612E106 117,471 553,535 SH   SOLE   396,729 0 156,806
TENNANT CO COM 880345103 131,376 1,667,206 SH   SOLE   1,471,739 0 195,467
TESLA INC COM 88160R101 558 518 SH   SOLE   18 0 500
TEXAS INSTRS INC COM 882508104 14,315 78,019 SH   SOLE   68,453 0 9,566
THERMO FISHER SCIENTIFIC INC COM 883556102 711 1,204 SH   SOLE   54 0 1,150
TORO CO COM 891092108 244,448 2,859,373 SH   SOLE   2,365,346 0 494,027
TRAVELERS COMPANIES INC COM 89417E109 17,107 93,619 SH   SOLE   51,337 0 42,282
UNION PAC CORP COM 907818108 2,343 8,577 SH   SOLE   3,068 0 5,509
UNITED PARCEL SERVICE INC CL B 911312106 52,282 243,783 SH   SOLE   127,920 0 115,863
UNITEDHEALTH GROUP INC COM 91324P102 449,279 880,991 SH   SOLE   764,769 0 116,222
US BANCORP DEL COM NEW 902973304 357,311 6,722,688 SH   SOLE   5,612,825 0 1,109,863
VANGUARD INDEX FDS TOTAL STK MKT 922908769 546 2,400 SH   SOLE   1,426 0 974
VANGUARD INDEX FDS GROWTH ETF 922908736 231 803 SH   SOLE   803 0 0
VANGUARD INDEX FDS REAL ESTATE ETF 922908553 413 3,813 SH   SOLE   1,163 0 2,650
VANGUARD SPECIALIZED FUNDS DIV APP ETF 921908844 453 2,791 SH   SOLE   2,659 0 132
VANGUARD WORLD FDS INF TECH ETF 92204A702 254 610 SH   SOLE   50 0 560
VERICEL CORP COM 92346J108 1,012 26,490 SH   SOLE   26,490 0 0
VERIZON COMMUNICATIONS INC COM 92343V104 4,506 88,453 SH   SOLE   27,900 0 60,553
VISA INC COM CL A 92826C839 182,096 821,101 SH   SOLE   674,092 0 147,010
WALGREENS BOOTS ALLIANCE INC COM 931427108 278 6,215 SH   SOLE   325 0 5,890
WALMART INC COM 931142103 821 5,514 SH   SOLE   3,866 0 1,648
WEC ENERGY GROUP INC COM 92939U106 711 7,119 SH   SOLE   4,153 0 2,966
WELLS FARGO CO NEW COM 949746101 173,401 3,578,234 SH   SOLE   2,983,348 0 594,886
WEYERHAEUSER CO MTN BE COM NEW 962166104 857 22,607 SH   SOLE   11,648 0 10,959
WINTRUST FINL CORP COM 97650W108 15,019 161,621 SH   SOLE   161,621 0 0
WORKIVA INC COM CL A 98139A105 56,585 479,531 SH   SOLE   450,718 0 28,813
XCEL ENERGY INC COM 98389B100 21,063 291,857 SH   SOLE   198,274 0 93,583
ZIMMER BIOMET HOLDINGS INC COM 98956P102 10,796 84,409 SH   SOLE   33,507 0 50,902
ZOETIS INC CL A 98978V103 292 1,550 SH   SOLE   1,463 0 87