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
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,375 32,982 SH   SOLE   32,982 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 338 2,075 SH   OTR   2,075 0 0
CECO ENVIRONMENTAL CORP COM 125141101 13,665 979,543 SH   SOLE   979,543 0 0
CECO ENVIRONMENTAL CORP COM 125141101 5,957 426,995 SH   OTR   426,995 0 0
DOLBY LABORATORIES INC COM 25659T107 504 11,162 SH   SOLE   11,162 0 0
DOLBY LABORATORIES INC COM 25659T107 216 4,780 SH   OTR   4,780 0 0
FARMER BROS CO COM 307675108 23,180 631,612 SH   SOLE   631,612 0 0
FARMER BROS CO COM 307675108 10,199 277,901 SH   OTR   277,901 0 0
GENTHERM INC COM 37253A103 10,398 307,169 SH   SOLE   307,169 0 0
GENTHERM INC COM 37253A103 5,590 165,132 SH   OTR   165,132 0 0
INOVALON HLDGS INC COM CL A 45781D101 2,098 203,642 SH   SOLE   203,642 0 0
INOVALON HLDGS INC COM CL A 45781D101 886 85,973 SH   OTR   85,973 0 0
INTEGRATED DEVICE TECHNOLOGY COM 458118106 16,470 699,063 SH   SOLE   699,063 0 0
INTEGRATED DEVICE TECHNOLOGY COM 458118106 7,074 300,256 SH   OTR   300,256 0 0
KMG CHEMICALS INC COM 482564101 38,957 1,001,724 SH   SOLE   1,001,724 0 0
KMG CHEMICALS INC COM 482564101 17,931 461,082 SH   OTR   461,082 0 0
MODEL N INC COM 607525102 4,766 538,529 SH   SOLE   538,529 0 0
MODEL N INC COM 607525102 2,055 232,204 SH   OTR   232,204 0 0
MONOTYPE IMAGING HOLDINGS IN COM 61022P100 13,460 678,091 SH   SOLE   678,091 0 0
MONOTYPE IMAGING HOLDINGS IN COM 61022P100 5,885 296,487 SH   OTR   296,487 0 0
NVE CORP COM NEW 629445206 9,655 135,170 SH   SOLE   135,170 0 0
NVE CORP COM NEW 629445206 2,571 35,993 SH   OTR   35,993 0 0
PANHANDLE OIL AND GAS INC CL A 698477106 28,149 1,195,295 SH   SOLE   1,195,295 0 0
PANHANDLE OIL AND GAS INC CL A 698477106 12,343 524,121 SH   OTR   524,121 0 0
PROGRESS SOFTWARE CORP COM 743312100 18,976 594,298 SH   SOLE   594,298 0 0
PROGRESS SOFTWARE CORP COM 743312100 8,419 263,680 SH   OTR   263,680 0 0
PURECYCLE CORP COM NEW 746228303 8,551 1,554,785 SH   SOLE   1,554,785 0 0
PURECYCLE CORP COM NEW 746228303 3,439 625,289 SH   OTR   625,289 0 0
SURMODICS INC COM 868873100 12,466 490,785 SH   SOLE   490,785 0 0
SURMODICS INC COM 868873100 5,372 211,502 SH   OTR   211,502 0 0
TECHTARGET INC COM 87874R100 15,684 1,838,633 SH   SOLE   1,838,633 0 0
TECHTARGET INC COM 87874R100 6,735 789,598 SH   OTR   789,598 0 0
TESSERA HLDG CORP COM 88166T101 38,460 870,143 SH   SOLE   870,143 0 0
TESSERA HLDG CORP COM 88166T101 18,071 408,838 SH   OTR   408,838 0 0