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   18,696,569 1,243,950 SH   SOLE   1,243,950 0 0
ANIKA THERAPEUTICS INC COM 035255108   10,450,479 695,308 SH   OTR   0 695,308 0
ANIKA THERAPEUTICS INC COM 035255108   1,542,003 102,595 SH   OTR   0 0 102,595
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   1,677,627 3,150 SH   OTR   0 0 3,150
ENPRO INC COM 29355X107   28,319,398 175,038 SH   SOLE   175,038 0 0
ENPRO INC COM 29355X107   14,492,663 89,577 SH   OTR   0 89,577 0
ENPRO INC COM 29355X107   2,205,359 13,631 SH   OTR   0 0 13,631
EXTREME NETWORKS COM 30226D106   26,956,760 2,037,548 SH   SOLE   2,037,548 0 0
EXTREME NETWORKS COM 30226D106   11,887,975 898,562 SH   OTR   0 898,562 0
EXTREME NETWORKS COM 30226D106   2,253,545 170,336 SH   OTR   0 0 170,336
GENTHERM INC COM 37253A103   35,400,311 1,323,871 SH   SOLE   1,323,871 0 0
GENTHERM INC COM 37253A103   20,687,428 773,651 SH   OTR   0 773,651 0
GENTHERM INC COM 37253A103   3,018,037 112,866 SH   OTR   0 0 112,866
HACKETT GROUP INC COM 404609109   14,215,179 486,488 SH   SOLE   486,488 0 0
HACKETT GROUP INC COM 404609109   7,286,504 249,367 SH   OTR   0 249,367 0
HACKETT GROUP INC COM 404609109   1,249,447 42,760 SH   OTR   0 0 42,760
HARMONIC INC COM 413160102   26,642,171 2,778,120 SH   SOLE   2,778,120 0 0
HARMONIC INC COM 413160102   10,395,080 1,083,950 SH   OTR   0 1,083,950 0
HARMONIC INC COM 413160102   2,201,845 229,598 SH   OTR   0 0 229,598
HAYWARD HLDGS INC COM 421298100   23,750,388 1,706,206 SH   SOLE   1,706,206 0 0
HAYWARD HLDGS INC COM 421298100   2,997,728 215,354 SH   OTR   0 215,354 0
HAYWARD HLDGS INC COM 421298100   1,984,101 142,536 SH   OTR   0 0 142,536
MATERION CORP COM 576690101   38,827,320 475,825 SH   SOLE   475,825 0 0
MATERION CORP COM 576690101   22,788,840 279,275 SH   OTR   0 279,275 0
MATERION CORP COM 576690101   3,236,664 39,665 SH   OTR   0 0 39,665
MIMEDX GROUP INC COM 602496101   35,256,012 4,638,949 SH   SOLE   4,638,949 0 0
MIMEDX GROUP INC COM 602496101   19,686,880 2,590,379 SH   OTR   0 2,590,379 0
MIMEDX GROUP INC COM 602496101   2,813,740 370,229 SH   OTR   0 0 370,229
N-ABLE INC COMMON STOCK 62878D100   4,591,009 647,533 SH   SOLE   647,533 0 0
N-ABLE INC COMMON STOCK 62878D100   372,204 52,497 SH   OTR   0 0 52,497
OOMA INC COM 683416101   27,322,404 2,087,273 SH   SOLE   2,087,273 0 0
OOMA INC COM 683416101   13,638,877 1,041,931 SH   OTR   0 1,041,931 0
OOMA INC COM 683416101   2,261,991 172,803 SH   OTR   0 0 172,803
RED VIOLET INC COM 75704L104   29,192,244 776,596 SH   SOLE   776,596 0 0
RED VIOLET INC COM 75704L104   13,675,881 363,817 SH   OTR   0 363,817 0
RED VIOLET INC COM 75704L104   2,572,359 68,432 SH   OTR   0 0 68,432
SONOS INC COM 83570H108   33,757,426 3,163,770 SH   SOLE   3,163,770 0 0
SONOS INC COM 83570H108   19,298,498 1,808,669 SH   OTR   0 1,808,669 0
SONOS INC COM 83570H108   2,950,212 276,496 SH   OTR   0 0 276,496
SYNAPTICS INC COM 87157D109   43,120,981 676,726 SH   SOLE   676,726 0 0
SYNAPTICS INC COM 87157D109   25,311,177 397,225 SH   OTR   0 397,225 0
SYNAPTICS INC COM 87157D109   3,618,149 56,782 SH   OTR   0 0 56,782
TECHTARGET INC COM NEW 87874R308   39,199,271 2,646,811 SH   SOLE   2,646,811 0 0
TECHTARGET INC COM NEW 87874R308   24,446,512 1,650,676 SH   OTR   0 1,650,676 0
TECHTARGET INC COM NEW 87874R308   3,396,659 229,349 SH   OTR   0 0 229,349