The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete. | |||||||||||||||||
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F INFORMATION TABLE |
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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 | (x$1000) | PRN AMT | PRN | CALL | DISCRETION | MANAGER | SOLE | SHARED | NONE |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | 9,189 | 44,172 | SH | SOLE | 44,172 | 0 | 0 | ||
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | 1,190 | 5,720 | SH | OTR | 0 | 0 | 5,720 | ||
| BRIGHTCOVE INC | COM | 10921T101 | 25,162 | 2,400,935 | SH | SOLE | 2,400,935 | 0 | 0 | ||
| BRIGHTCOVE INC | COM | 10921T101 | 11,872 | 1,132,850 | SH | OTR | 0 | 0 | 1,132,850 | ||
| CECO ENVIRONMENTAL CORP | COM | 125141101 | 26,010 | 3,723,628 | SH | SOLE | 3,723,628 | 0 | 0 | ||
| CECO ENVIRONMENTAL CORP | COM | 125141101 | 11,748 | 1,681,900 | SH | OTR | 0 | 0 | 1,681,900 | ||
| DOLBY LABORATORIES INC | COM | 25659T107 | 14,797 | 228,914 | SH | SOLE | 228,914 | 0 | 0 | ||
| DOLBY LABORATORIES INC | COM | 25659T107 | 6,588 | 101,921 | SH | OTR | 0 | 0 | 101,921 | ||
| ENERGY RECOVERY INC | COM | 29270J100 | 24,342 | 2,627,322 | SH | SOLE | 2,627,322 | 0 | 0 | ||
| ENERGY RECOVERY INC | COM | 29270J100 | 10,549 | 1,138,568 | SH | OTR | 0 | 0 | 1,138,568 | ||
| FARMER BROS CO | COM | 307675108 | 17,588 | 1,358,122 | SH | SOLE | 1,358,122 | 0 | 0 | ||
| FARMER BROS CO | COM | 307675108 | 7,954 | 614,197 | SH | OTR | 0 | 0 | 614,197 | ||
| GENTHERM INC | COM | 37253A103 | 34,731 | 845,334 | SH | SOLE | 845,334 | 0 | 0 | ||
| GENTHERM INC | COM | 37253A103 | 15,505 | 377,381 | SH | OTR | 0 | 0 | 377,381 | ||
| HACKETT GROUP INC | COM | 404609109 | 18,588 | 1,129,291 | SH | SOLE | 1,129,291 | 0 | 0 | ||
| HACKETT GROUP INC | COM | 404609109 | 8,656 | 525,857 | SH | OTR | 0 | 0 | 525,857 | ||
| LUXFER HOLDINGS PLC | SHS | G5698W116 | 3,827 | 245,658 | SH | SOLE | 245,658 | 0 | 0 | ||
| LUXFER HOLDINGS PLC | SHS | G5698W116 | 1,569 | 100,714 | SH | OTR | 0 | 0 | 100,714 | ||
| MODEL N INC | COM | 607525102 | 20,800 | 749,284 | SH | SOLE | 749,284 | 0 | 0 | ||
| MODEL N INC | COM | 607525102 | 9,740 | 350,870 | SH | OTR | 0 | 0 | 350,870 | ||
| MONOTYPE IMAGING HOLDINGS IN | COM | 61022P100 | 11,207 | 565,735 | SH | SOLE | 565,735 | 0 | 0 | ||
| MONOTYPE IMAGING HOLDINGS IN | COM | 61022P100 | 4,842 | 244,425 | SH | OTR | 0 | 0 | 244,425 | ||
| PANHANDLE OIL AND GAS INC | CL A | 698477106 | 22,928 | 1,640,053 | SH | SOLE | 1,640,053 | 0 | 0 | ||
| PANHANDLE OIL AND GAS INC | CL A | 698477106 | 10,555 | 754,975 | SH | OTR | 0 | 0 | 754,975 | ||
| PURECYCLE CORP | COM NEW | 746228303 | 11,492 | 1,117,896 | SH | SOLE | 1,117,896 | 0 | 0 | ||
| PURECYCLE CORP | COM NEW | 746228303 | 4,861 | 472,908 | SH | OTR | 0 | 0 | 472,908 | ||
| QUOTIENT TECHNOLOGY INC | COM | 749119103 | 16,035 | 2,050,555 | SH | SOLE | 2,050,555 | 0 | 0 | ||
| QUOTIENT TECHNOLOGY INC | COM | 749119103 | 6,818 | 871,886 | SH | OTR | 0 | 0 | 871,886 | ||
| SIERRA WIRELESS INC | COM | 826516106 | 26,570 | 2,483,178 | SH | SOLE | 2,483,178 | 0 | 0 | ||
| SIERRA WIRELESS INC | COM | 826516106 | 11,850 | 1,107,432 | SH | OTR | 0 | 0 | 1,107,432 | ||
| SONOS INC | COM | 83570H108 | 8,352 | 622,817 | SH | SOLE | 622,817 | 0 | 0 | ||
| SONOS INC | COM | 83570H108 | 3,444 | 256,824 | SH | OTR | 0 | 0 | 256,824 | ||
| SURMODICS INC | COM | 868873100 | 34,477 | 753,750 | SH | SOLE | 753,750 | 0 | 0 | ||
| SURMODICS INC | COM | 868873100 | 14,517 | 317,381 | SH | OTR | 0 | 0 | 317,381 | ||
| VISTEON CORP | COM | 92839U206 | 42,775 | 518,232 | SH | SOLE | 518,232 | 0 | 0 | ||
| VISTEON CORP | COM | 92839U906 | 18,135 | 219,716 | SH | OTR | 0 | 0 | 219,716 | ||