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
Aspen Aerogels, Inc. Common 04523Y105 64,423 3,167,322 SH   SOLE n/a 3,167,322 0 0
BigCommerce Holdings, Inc. Common 08975P108 16,258 281,284 SH   SOLE n/a 281,284 0 0
BOK Financial Corp Common 05561Q201 258,751 2,896,899 SH   SOLE n/a 2,896,899 0 0
Callaway Golf Company Common 131193104 10,056 375,932 SH   SOLE n/a 375,932 0 0
Boston Omaha Corp - CL A Common 101044105 5,529 187,056 SH   OTR n/a 140,932 0 46,124
Accenture PLC Common G1151C101 2,585 9,359 SH   OTR n/a 0 0 9,359
Adobe Inc. Common 00724F101 1,792 3,770 SH   OTR n/a 0 0 3,770
Alphabet, Inc. - CL A Common 02079K305 588 285 SH   OTR n/a 0 0 285
Alphabet Inc. - CL C Common 02079K107 3,531 1,712 SH   OTR n/a 0 0 1,712
Analog Devices, Inc. Common 032654105 1,207 7,782 SH   OTR n/a 0 0 7,782
Aon PLC Common G0403H108 1,519 6,603 SH   SOLE   0 0 6,603
Autodesk, Inc. Common 052769106 1,987 7,170 SH   OTR n/a 0 0 7,170
Berkshire Hathaway Inc. - CL B Common 084670702 3,573 13,985 SH   OTR n/a 0 0 13,985
Comcast Corp - CL A Common 20030N101 1,942 35,890 SH   OTR n/a 0 0 35,890
Copart, Inc. Common 217204106 4,481 41,259 SH   OTR n/a 0 0 41,259
CoStar Group, Inc. Common 22160N109 595 724 SH   OTR n/a 0 0 724
Costco Wholesale Corp New Common 22160K105 223 632 SH   OTR n/a 0 0 632
Descartes Systems Group Inc Common 249906108 2,065 33,909 SH   OTR n/a 0 0 33,909
Facebook, Inc. - CL A Common 30303M102 2,769 9,402 SH   OTR n/a 0 0 9,402
Heico Corporation Common 422806109 1,533 12,186 SH   OTR n/a 0 0 12,186
JPMorgan Chase & Co. Common 46625H100 4,319 28,373 SH   OTR n/a 0 0 28,373
Liberty Broadband Corp - Series C Common 530307305 5,318 35,419 SH   OTR n/a 0 0 35,419
Masonite International Corporation Common 575385109 8,137 70,612 SH   OTR n/a 0 0 70,612
Microsoft Corp Common 594918104 5,107 21,663 SH   OTR n/a 0 0 21,663
Mohawk Industries, Inc. Common 608190104 2,014 10,474 SH   OTR n/a 0 0 10,474
Moodys Corp Common 615369105 2,363 7,913 SH   OTR n/a 0 0 7,913
PayPal Holdings, Inc. Common 70450Y103 1,145 4,716 SH   OTR n/a 0 0 4,716
Pegasystems Inc. Common 705573103 6,904 60,381 SH   OTR n/a 0 0 60,381
Primo Water Corporation Common 74167P108 4,810 295,802 SH   OTR n/a 0 0 295,802
PTC Inc. Common 69366J200 9,925 72,105 SH   OTR n/a 0 0 72,105
R1 RCM Inc. Common 749397105 1,555 63,026 SH   OTR n/a 0 0 63,026
Resideo Technologies, Inc. Common 76118Y104 8,775 310,635 SH   OTR n/a 0 0 310,635
Richardson Electronics, Ltd. Common 763165107 511 80,237 SH   OTR n/a 0 0 80,237
Ryanair Holdings PLC Common 783513203 2,830 24,609 SH   OTR n/a 0 0 24,609
S&P Global Inc. Common 78409V104 2,377 6,736 SH   OTR n/a 0 0 6,736
SAP SE Common 803054204 1,408 11,464 SH   OTR n/a 0 0 11,464
ServiceNow, Inc. Common 81762P102 7,577 15,150 SH   OTR n/a 0 0 15,150
Talend S.A. Common 874224207 3,290 51,695 SH   OTR n/a 0 0 51,695
Telefonaktiebolaget LM Ericsson - Series B Common 294821608 2,818 213,642 SH   OTR n/a 0 0 213,642
Tyler Technologies, Inc. Common 902252105 4,112 9,687 SH   OTR n/a 0 0 9,687
Visa Inc. - CL A Common 92826C839 2,485 11,739 SH   OTR n/a 0 0 11,739
Wix.com Ltd. Common M98068105 2,966 10,623 SH   OTR n/a 0 0 10,623
Workiva Inc. Common 98139A105 3,434 38,909 SH   OTR n/a 0 0 38,909