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
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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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
AMBAC Financial Group COM 023139884   218,820 14,000 SH   SOLE   0 0 14,000
AT&T Inc. COM 00206R102   20,251,743 1,150,667 SH   SOLE   0 0 1,150,667
Abbott Laboratories COM 002824100   1,126,938 9,915 SH   SOLE   0 0 9,915
Abbvie Inc. COM 00287y109   4,459,382 24,489 SH   SOLE   0 0 24,489
Accenture PLC COM G1151C101   412,119 1,189 SH   SOLE   0 0 1,189
Adobe Inc. COM 00724f101   1,047,045 2,075 SH   SOLE   0 0 2,075
Advanced Micro Devices Inc. COM 007903107   2,308,106 12,788 SH   SOLE   0 0 12,788
Agnico Eagle Mines Ltd. COM 008474108   597,574 10,018 SH   SOLE   0 0 10,018
Allegheny Technologies Inc. COM 01741r102   30,852,184 602,935 SH   SOLE   0 0 602,935
Alliant Energy Corp. COM 018802108   472,263 9,370 SH   SOLE   0 0 9,370
Alphabet Inc. Cl A COM 02079k305   2,048,875 13,575 SH   SOLE   0 0 13,575
Alphabet Inc. Cl C COM 02079k107   3,121,482 20,501 SH   SOLE   0 0 20,501
Altria Group Inc. COM 02209S103   782,205 17,932 SH   SOLE   0 0 17,932
Amazon Inc. COM 023135106   2,505,478 13,890 SH   SOLE   0 0 13,890
American Express Co. COM 025816109   325,081 1,428 SH   SOLE   0 0 1,428
Amgen Inc. COM 031162100   244,800 861 SH   SOLE   0 0 861
Analog Devices COM 032654105   294,312 1,488 SH   SOLE   0 0 1,488
Ansys Inc. COM 03662q105   315,221 908 SH   SOLE   0 0 908
Apache Corp. COM 037411105   310,451 9,030 SH   SOLE   0 0 9,030
Apple Inc. COM 037833100   12,479,484 72,775 SH   SOLE   0 0 72,775
Applied Materials Inc. COM 038222105   708,881 3,437 SH   SOLE   0 0 3,437
Ares Capital Corp. COM 04010l103   215,903 10,370 SH   SOLE   0 0 10,370
Arthur J. Gallagher & Co. COM 363576109   216,175 865 SH   SOLE   0 0 865
Associated Banc-Corp. COM 045487105   969,692 45,081 SH   SOLE   0 0 45,081
BCE Inc. COM 05534B760   316,626 9,318 SH   SOLE   0 0 9,318
BP PLC COM 055622104   428,747 11,379 SH   SOLE   0 0 11,379
Bald Eagle Energy COM 057690109   0 14,000 SH   SOLE   0 0 14,000
Bank of America Corp. COM 060505104   22,361,859 589,711 SH   SOLE   0 0 589,711
Bank of Montreal COM 063671101   357,802 3,663 SH   SOLE   0 0 3,663
Berkley W R Corp. COM 084423102   3,214,706 36,349 SH   SOLE   0 0 36,349
Berkshire Hathaway Cl B COM 084670702   2,982,748 7,093 SH   SOLE   0 0 7,093
Boeing Co. COM 097023105   24,639,414 127,672 SH   SOLE   0 0 127,672
Bristol-Myers Squibb Corp. COM 110122108   21,176,996 390,503 SH   SOLE   0 0 390,503
Broadcom Inc. COM 11135F101   593,784 448 SH   SOLE   0 0 448
CVS Health Corp. COM 126650100   376,822 4,724 SH   SOLE   0 0 4,724
Caterpillar Inc. COM 149123101   1,078,690 2,944 SH   SOLE   0 0 2,944
Charles Schwab COM 808513105   328,279 4,538 SH   SOLE   0 0 4,538
Chevron Corp. COM 166764100   3,942,878 24,996 SH   SOLE   0 0 24,996
Cisco Systems Inc. COM 17275r102   14,595,852 292,443 SH   SOLE   0 0 292,443
Citigroup Inc. COM 172967424   31,699,974 501,265 SH   SOLE   0 0 501,265
Coastalsouth Bancshares, Inc. COM 19058x207   620,520 37,046 SH   SOLE   0 0 37,046
Colgate-Palmolive Co. COM 194162103   449,079 4,987 SH   SOLE   0 0 4,987
ConocoPhillips COM 20825c104   417,478 3,280 SH   SOLE   0 0 3,280
Constellation Energy Corp. COM 21037T109   351,585 1,902 SH   SOLE   0 0 1,902
Coresite Realty Corp. COM 21870q105   328,036 1,350 SH   SOLE   0 0 1,350
Costco Wholesale Corp. COM 22160k105   1,186,071 1,619 SH   SOLE   0 0 1,619
Coterra Energy Inc. COM 127097103   11,137,186 399,469 SH   SOLE   0 0 399,469
Crowdstrike Holdings Inc. COM 22788c105   836,740 2,610 SH   SOLE   0 0 2,610
D R Horton Inc. COM 23331a109   342,099 2,079 SH   SOLE   0 0 2,079
Deere & Co. COM 244199105   487,138 1,186 SH   SOLE   0 0 1,186
Dotz Nano Ltde COM q3254m100   1,075 10,000 SH   SOLE   0 0 10,000
Dow Inc. COM 260557103   14,765,334 254,882 SH   SOLE   0 0 254,882
Duke Energy Corp. COM 26441c204   501,055 5,181 SH   SOLE   0 0 5,181
Eaton Corp. COM g29183103   1,225,393 3,919 SH   SOLE   0 0 3,919
Elevance Health Inc. COM 036752103   285,902 551 SH   SOLE   0 0 551
Eli Lilly & Co. COM 532457108   5,579,529 7,172 SH   SOLE   0 0 7,172
Emerson Electric Co. COM 291011104   484,721 4,274 SH   SOLE   0 0 4,274
Exact Sciences Corp. COM 30063p105   275,342 3,987 SH   SOLE   0 0 3,987
Exelon Corp. COM 30161n101   272,495 7,253 SH   SOLE   0 0 7,253
Exxon Mobil Corp. COM 30231g102   21,958,591 188,907 SH   SOLE   0 0 188,907
Fastenal Co. COM 311900104   1,299,038 16,840 SH   SOLE   0 0 16,840
Fidelity National Information COM 31620m106   659,683 8,893 SH   SOLE   0 0 8,893
Fiserv Inc. COM 337738108   3,072,220 19,223 SH   SOLE   0 0 19,223
Ford Motor Co. COM 345370860   754,554 56,819 SH   SOLE   0 0 56,819
Gates Industrial Corp. COM g39108108   19,082,614 1,077,505 SH   SOLE   0 0 1,077,505
General Electric Co. COM 369604301   1,493,936 8,511 SH   SOLE   0 0 8,511
General Motors Co. COM 37045v100   9,864,495 217,519 SH   SOLE   0 0 217,519
Goodyear Tire & Rubber COM 382550101   11,131,872 810,770 SH   SOLE   0 0 810,770
Halliburton Co. COM 406216101   18,739,637 475,384 SH   SOLE   0 0 475,384
HanesBrands Inc. COM 410345102   8,449,571 1,456,823 SH   SOLE   0 0 1,456,823
Heartland Financial Inc. COM 42234q102   488,585 13,900 SH   SOLE   0 0 13,900
Helmerich & Payne Inc. COM 423452101   546,780 13,000 SH   SOLE   0 0 13,000
Hershey Co. COM 427866108   207,531 1,067 SH   SOLE   0 0 1,067
Home Depot Inc. COM 437076102   937,259 2,443 SH   SOLE   0 0 2,443
Honeywell Inc. COM 438516106   213,665 1,041 SH   SOLE   0 0 1,041
IBM Corp. COM 459200101   1,029,688 5,392 SH   SOLE   0 0 5,392
Illinois Tool Works Inc. COM 452308109   954,181 3,556 SH   SOLE   0 0 3,556
Intel Corp. COM 458140100   1,489,596 33,724 SH   SOLE   0 0 33,724
International Paper Co. COM 460146103   3,176,618 81,410 SH   SOLE   0 0 81,410
JP Morgan Chase & Co. COM 46625H100   2,822,837 14,093 SH   SOLE   0 0 14,093
Johnson & Johnson COM 478160104   1,149,809 7,269 SH   SOLE   0 0 7,269
Johnson Controls Intl. COM g51502105   1,665,007 25,490 SH   SOLE   0 0 25,490
KLA-Tencor Corp. COM 482480100   261,964 375 SH   SOLE   0 0 375
Kellanova COM 487836108   2,491,009 43,481 SH   SOLE   0 0 43,481
Kenvue Inc. COM 49177J102   18,565,926 865,141 SH   SOLE   0 0 865,141
Kimberly-Clark Corp. COM 494368103   2,224,820 17,200 SH   SOLE   0 0 17,200
Kinder Morgan Inc. COM 49456b101   3,808,692 207,671 SH   SOLE   0 0 207,671
Kohls Corp. COM 500255104   1,689,128 57,946 SH   SOLE   0 0 57,946
Kraft Heinz Co. COM 500754106   2,526,026 68,456 SH   SOLE   0 0 68,456
Lockheed Martin Corp. COM 539830109   429,209 944 SH   SOLE   0 0 944
Louisiana Pacific Corp. COM 546347105   11,766,951 140,233 SH   SOLE   0 0 140,233
Lowes Companies Inc. COM 548661107   258,234 1,014 SH   SOLE   0 0 1,014
MGE Energy Inc. COM 55277p104   1,021,392 12,975 SH   SOLE   0 0 12,975
MGIC Investment Corp. COM 552848103   2,581,395 115,447 SH   SOLE   0 0 115,447
Malachite Innovations Com COM 56089m107   27,750 74,000 SH   SOLE   0 0 74,000
Manpower Inc. COM 56418h100   8,257,480 106,356 SH   SOLE   0 0 106,356
Marathon Bancorp Inc COM 565759107   233,750 25,000 SH   SOLE   0 0 25,000
Marcus Corp. COM 566330106   7,961,201 558,289 SH   SOLE   0 0 558,289
Masco Corp. COM 574599106   227,174 2,880 SH   SOLE   0 0 2,880
Mastercard Inc. COM 57636q104   903,425 1,876 SH   SOLE   0 0 1,876
McDonalds Corp. COM 580135101   1,000,883 3,550 SH   SOLE   0 0 3,550
McKesson Corp. COM 58155q103   567,667 1,057 SH   SOLE   0 0 1,057
Medtronic PLC COM G5960L103   18,887,758 216,727 SH   SOLE   0 0 216,727
Merck & Co. Inc. COM 58933Y105   1,696,669 12,858 SH   SOLE   0 0 12,858
MetLife Inc. COM 59156R108   368,266 4,969 SH   SOLE   0 0 4,969
Meta Platforms Inc. COM 30303M102   1,132,373 2,332 SH   SOLE   0 0 2,332
Microsoft Corp. COM 594918104   6,764,737 16,079 SH   SOLE   0 0 16,079
Mondelez International Inc. COM 609207105   591,920 8,456 SH   SOLE   0 0 8,456
Morgan Stanley COM 617446448   822,581 8,736 SH   SOLE   0 0 8,736
Motorola Solutions Inc. COM 620076307   434,064 1,223 SH   SOLE   0 0 1,223
Nano Dimension Ltd. COM 63008g203   27,850 10,000 SH   SOLE   0 0 10,000
Netflix Inc. COM 64110l106   993,998 1,637 SH   SOLE   0 0 1,637
Newmont Corp. COM 651639106   23,284,329 649,674 SH   SOLE   0 0 649,674
Nicolet Bankshares Inc. COM 65406E102   265,537 3,088 SH   SOLE   0 0 3,088
Nokia Corp. COM 654902204   44,013 12,433 SH   SOLE   0 0 12,433
Norfolk Southern Corp. COM 655844108   771,015 3,025 SH   SOLE   0 0 3,025
Novo-Nordisk ADR COM 670100205   220,951 1,721 SH   SOLE   0 0 1,721
Nvidia Corp. COM 67066g104   148,824,324 164,709 SH   SOLE   0 0 164,709
O-I Glass Inc. COM 67098h104   218,988 13,200 SH   SOLE   0 0 13,200
OPKO Health Inc. COM 68375n103   12,000 10,000 SH   SOLE   0 0 10,000
Occidental Petroleum Corp. COM 674599105   317,766 4,889 SH   SOLE   0 0 4,889
Omnicom Group Inc. COM 681919106   207,937 2,149 SH   SOLE   0 0 2,149
Options Media Group Hldgs. COM 684008105   0 20,000 SH   SOLE   0 0 20,000
Oracle Corp. COM 68389x105   460,475 3,666 SH   SOLE   0 0 3,666
Organon & Co. COM 68622v106   23,345,738 1,241,795 SH   SOLE   0 0 1,241,795
Patterson UTI Energy COM 703481101   9,609,491 804,815 SH   SOLE   0 0 804,815
PepsiCo Inc. COM 713448108   1,056,769 6,038 SH   SOLE   0 0 6,038
Pfizer Inc. COM 717081103   4,993,299 179,939 SH   SOLE   0 0 179,939
Philip Morris International In COM 718172109   1,531,239 16,713 SH   SOLE   0 0 16,713
Phillips 66 COM 718546104   338,440 2,072 SH   SOLE   0 0 2,072
Procter & Gamble Co. COM 742718109   1,621,101 9,991 SH   SOLE   0 0 9,991
Qualcomm Inc. COM 747525103   447,968 2,646 SH   SOLE   0 0 2,646
Raytheon Technologies Inc. COM 75513E101   284,483 2,917 SH   SOLE   0 0 2,917
Rockwell Automation, Inc. COM 773903109   326,290 1,120 SH   SOLE   0 0 1,120
Schlumberger COM 806857108   565,968 10,326 SH   SOLE   0 0 10,326
Servicenow Inc. COM 81762p102   762,400 1,000 SH   SOLE   0 0 1,000
Simon Property Group COM 828806109   257,270 1,644 SH   SOLE   0 0 1,644
Sofi Technologies Inc. COM 83406F102   80,300 11,000 SH   SOLE   0 0 11,000
Sorrento Therapeutics Inc. COM 83587F202   240 30,000 SH   SOLE   0 0 30,000
Spooz Inc. COM 84915Q100   10,284 1,535,000 SH   SOLE   0 0 1,535,000
T Mobile US Inc. COM 872590104   204,025 1,250 SH   SOLE   0 0 1,250
Target Corp. COM 87612e106   397,836 2,245 SH   SOLE   0 0 2,245
Tellurian Inc. COM 87968a104   15,212 23,000 SH   SOLE   0 0 23,000
Tesla Inc. COM 88160r101   1,067,221 6,071 SH   SOLE   0 0 6,071
Texas Instruments Inc. COM 882508104   660,013 3,789 SH   SOLE   0 0 3,789
The Coca-Cola Co. COM 191216100   349,049 5,705 SH   SOLE   0 0 5,705
The Walt Disney Co. COM 254687106   11,796,670 96,410 SH   SOLE   0 0 96,410
Troy Minerals Inc. COM 897471108   2,728 10,000 SH   SOLE   0 0 10,000
US Bancorp COM 902973304   5,973,082 133,626 SH   SOLE   0 0 133,626
US Silica Holdings, Inc. COM 90346e103   434,350 35,000 SH   SOLE   0 0 35,000
Union Pacific Corp. COM 907818108   4,979,583 20,248 SH   SOLE   0 0 20,248
United Parcel Service Inc. COM 911312106   2,274,039 15,300 SH   SOLE   0 0 15,300
UnitedHealth Group Inc. COM 91324P102   1,736,397 3,510 SH   SOLE   0 0 3,510
Verizon Communications COM 92343v104   19,392,673 462,170 SH   SOLE   0 0 462,170
Visa Inc. COM 92826c839   1,053,265 3,774 SH   SOLE   0 0 3,774
Vuzix Corp. COM 92921w300   25,410 21,000 SH   SOLE   0 0 21,000
WEC Energy Group Inc. COM 92939u106   2,951,539 35,942 SH   SOLE   0 0 35,942
Walgreens Boots Alliance Inc. COM 931427108   15,951,102 735,413 SH   SOLE   0 0 735,413
Walmart Inc. COM 931142103   287,827 4,784 SH   SOLE   0 0 4,784
Waste Management Inc. COM 94106l109   586,845 2,753 SH   SOLE   0 0 2,753
Wells Fargo & Co. COM 949746101   24,496,259 422,641 SH   SOLE   0 0 422,641
Xcel Energy Inc. COM 98389b100   690,096 12,839 SH   SOLE   0 0 12,839