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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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
Aspen Aerogels, Inc. Common 04523Y105 31,293 3,167,322 SH   SOLE n/a 3,167,322 0 0
BOK Financial Corp. Common 05561Q201 242,443 3,207,769 SH   SOLE n/a 3,207,769 0 0
Callaway Golf Company Common 131193104 24,518 1,201,877 SH   SOLE n/a 1,201,877 0 0
Excelerate Energy, Inc. Common 30069T101 156,455 7,854,167 SH   SOLE n/a 7,854,167 0 0
Taboola.com Ltd Common M8744T106 1,604 634,072 SH   SOLE n/a 634,072 0 0
Boston Omaha Corp - CL A Common 101044105 3,863 187,056 SH   OTR n/a 140,932 0 46,124
Adobe Inc. Common 00724F101 1,380 3,771 SH   OTR n/a 0 0 3,771
Alight, Inc. - CL A Common 01626W101 1,858 275,303 SH   OTR n/a 0 0 275,303
Alphabet, Inc. - CL A Common 02079K107 952 8,740 SH   OTR n/a 0 0 8,740
Alphabet, Inc. - CL C Common 02079K107 3,240 29,620 SH   OTR n/a 0 0 29,620
Amazon.com, Inc. Common 023135106 2,325 21,893 SH   OTR n/a 0 0 0
Analog Devices, Inc. Common 032654105 1,903 13,025 SH   OTR n/a 0 0 13,025
Aon PLC Common G0403H108 2,408 8,930 SH   OTR n/a 0 0 8,930
Autodesk, Inc. Common 052769106 1,325 7,708 SH   OTR n/a 0 0 7,708
Avalara, Inc. Common 05338G106 2,831 40,095 SH   OTR n/a 0 0 40,095
Berkshire Hathaway Inc. - CL B Common 084670702 2,153 7,885 SH   OTR n/a 0 0 7,885
Comcast Corp - CL A Common 20030N101 1,129 28,764 SH   OTR n/a 0 0 28,764
Copart, Inc. Common 217204106 2,565 23,606 SH   OTR n/a 0 0 23,606
CoStar Group, Inc. Common 22160N109 1,954 32,346 SH   OTR n/a 0 0 32,346
Coupa Software Incorporated Common 22266L106 1,084 18,979 SH   OTR n/a 0 0 18,979
CyberArk Software Ltd. Common M2682V108 3,427 26,779 SH   OTR n/a 0 0 26,779
Definitive Healthcare Corp. Common 24477E103 941 41,041 SH   OTR n/a 0 0 41,041
Dollar General Corp Common 256677105 1,408 5,738 SH   OTR n/a 0 0 5,738
Dollar Tree, Inc. Common 256746108 2,070 13,281 SH   OTR n/a 0 0 13,281
eBay Inc. Common 278642103 1,299 31,175 SH   OTR n/a 0 0 31,175
Ericsson (Telefonaktiebolaget LM Ericsson) - Series B Common 294821608 1,827 246,938 SH   OTR n/a 0 0 246,938
HEICO Corporation Common 422806109 1,598 12,186 SH   OTR n/a 0 0 12,186
JPMorgan Chase & Co. Common 46625H100 1,910 16,957 SH   OTR n/a 0 0 16,957
Liberty Broadband Corp - Series C Common 530307305 1,542 13,333 SH   OTR n/a 0 0 13,333
Masonite International Corporation Common 575385109 5,215 67,883 SH   OTR n/a 0 0 67,883
Meta Platforms, Inc. - CL A Common 30303M102 1,637 10,150 SH   OTR n/a 0 0 10,150
Microsoft Corporation Common 594918104 4,264 16,602 SH   OTR n/a 0 0 16,602
Mohawk Industries, Inc. Common 608190104 1,873 15,094 SH   OTR n/a 0 0 15,094
Moodys Corporation Common 615369105 2,032 7,473 SH   OTR n/a 0 0 7,473
Morningstar, Inc. Common 617700109 3,288 13,598 SH   OTR n/a 0 0 13,598
NICE Ltd. Common 617700110 3,072 15,961 SH   OTR n/a 0 0 15,961
Pegasystems Inc. Common 705573103 1,431 29,909 SH   OTR n/a 0 0 29,909
Primo Water Corporation Common 74167P108 3,954 295,530 SH   OTR n/a 0 0 295,530
PTC Inc. Common 69366J200 5,707 53,669 SH   OTR n/a 0 0 53,669
Resideo Technologies, Inc. Common 76118Y104 4,456 229,474 SH   OTR n/a 0 0 229,474
Ryanair Holdings PLC Common 783513203 1,921 28,566 SH   OTR n/a 0 0 28,566
S&P Global Inc. Common 78409V104 2,120 6,289 SH   OTR n/a 0 0 6,289
Salesforce Inc Common 79466L302 862 5,225 SH   OTR n/a 0 0 5,225
ServiceNow, Inc. Common 81762P102 6,715 14,122 SH   OTR n/a 0 0 14,122
Thermo Fisher Scientific Inc. Common 883556102 2,287 4,209 SH   OTR n/a 0 0 4,209
Tyler Technologies, Inc. Common 902252105 2,917 8,773 SH   OTR n/a 0 0 8,773
Visa Inc - CL A Common 92826C839 2,311 11,739 SH   OTR n/a 0 0 11,739
Workiva Inc. - CL A Common 98139A105 3,351 50,774 SH   OTR n/a 0 0 50,774