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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ANIKA THERAPEUTICS INC COM 035255108   9,749,605 1,037,192 SH   SOLE   1,037,192 0 0
ANIKA THERAPEUTICS INC COM 035255108   4,658,631 495,599 SH   OTR   0 495,599 0
ANIKA THERAPEUTICS INC COM 035255108   831,186 88,424 SH   OTR   0 0 88,424
BARRETT BUSINESS SVCS INC COM 068463108   16,340,607 368,696 SH   SOLE   368,696 0 0
BARRETT BUSINESS SVCS INC COM 068463108   1,373,476 30,990 SH   OTR   0 0 30,990
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   1,206,576 2,400 SH   OTR   0 0 2,400
CORE & MAIN INC CL A 21874C102   1,120,687 20,819 SH   SOLE   20,819 0 0
CORE & MAIN INC CL A 21874C102   91,834 1,706 SH   OTR   0 0 1,706
ENPRO INC COM 29355X107   37,659,736 166,636 SH   SOLE   166,636 0 0
ENPRO INC COM 29355X107   2,804,886 12,411 SH   OTR   0 0 12,411
EXTREME NETWORKS COM 30226D106   41,741,972 2,021,403 SH   SOLE   2,021,403 0 0
EXTREME NETWORKS COM 30226D106   3,531,109 170,998 SH   OTR   0 0 170,998
GENTHERM INC COM 37253A103   47,067,003 1,381,885 SH   SOLE   1,381,885 0 0
GENTHERM INC COM 37253A103   8,411,287 246,955 SH   OTR   0 246,955 0
GENTHERM INC COM 37253A103   4,108,556 120,627 SH   OTR   0 0 120,627
HACKETT GROUP INC COM 404609109   13,952,618 733,962 SH   SOLE   733,962 0 0
HACKETT GROUP INC COM 404609109   1,187,003 62,441 SH   OTR   0 0 62,441
HARMONIC INC COM 413160102   30,325,864 2,978,965 SH   SOLE   2,978,965 0 0
HARMONIC INC COM 413160102   2,467,998 242,436 SH   OTR   0 0 242,436
HAYWARD HLDGS INC COM 421298100   26,243,572 1,735,686 SH   SOLE   1,735,686 0 0
HAYWARD HLDGS INC COM 421298100   2,171,625 143,626 SH   OTR   0 0 143,626
MATERION CORP COM 576690101   55,321,798 457,924 SH   SOLE   457,924 0 0
MATERION CORP COM 576690101   4,808,842 39,805 SH   OTR   0 0 39,805
MIMEDX GROUP INC COM 602496101   39,571,937 5,669,332 SH   SOLE   5,669,332 0 0
MIMEDX GROUP INC COM 602496101   10,947,230 1,568,371 SH   OTR   0 1,568,371 0
MIMEDX GROUP INC COM 602496101   3,234,009 463,325 SH   OTR   0 0 463,325
OOMA INC COM 683416101   21,894,220 1,826,040 SH   SOLE   1,826,040 0 0
OOMA INC COM 683416101   2,968,472 247,579 SH   OTR   0 247,579 0
OOMA INC COM 683416101   1,865,560 155,593 SH   OTR   0 0 155,593
RED VIOLET INC COM 75704L104   29,713,112 568,672 SH   SOLE   568,672 0 0
RED VIOLET INC COM 75704L104   2,501,835 47,882 SH   OTR   0 0 47,882
SONOS INC COM 83570H108   43,383,150 2,745,769 SH   SOLE   2,745,769 0 0
SONOS INC COM 83570H108   4,060,047 256,965 SH   OTR   0 0 256,965
SYNAPTICS INC COM 87157D109   41,202,801 602,909 SH   SOLE   602,909 0 0
SYNAPTICS INC COM 87157D109   3,999,804 58,528 SH   OTR   0 0 58,528
TECHTARGET INC COM NEW 87874R308   18,081,109 3,112,067 SH   SOLE   3,112,067 0 0
TECHTARGET INC COM NEW 87874R308   9,038,478 1,555,676 SH   OTR   0 1,555,676 0
TECHTARGET INC COM NEW 87874R308   2,010,986 346,125 SH   OTR   0 0 346,125