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   13,403,273 1,266,850 SH   SOLE   1,266,850 0 0
ANIKA THERAPEUTICS INC COM 035255108   7,044,619 665,843 SH   OTR   0 665,843 0
ANIKA THERAPEUTICS INC COM 035255108   1,098,394 103,818 SH   OTR   0 0 103,818
BARRETT BUSINESS SVCS INC COM 068463108   7,000,168 167,910 SH   SOLE   167,910 0 0
BARRETT BUSINESS SVCS INC COM 068463108   530,589 12,727 SH   OTR   0 0 12,727
BERKSHIRE HATHAWAY INC DEL COM 084670108   1,214,425 2,500 SH   OTR   0 0 2,500
ENPRO INC COM 29355X107   34,633,389 180,806 SH   SOLE   180,806 0 0
ENPRO INC COM 29355X107   2,632,089 13,741 SH   OTR   0 0 13,741
EXTREME NETWORKS COM 30226D106   38,537,627 2,146,943 SH   SOLE   2,146,943 0 0
EXTREME NETWORKS COM 30226D106   3,166,883 176,428 SH   OTR   0 0 176,428
GENTHERM INC COM 37253A103   39,994,846 1,413,745 SH   SOLE   1,413,745 0 0
GENTHERM INC COM 37253A103   18,644,468 659,048 SH   OTR   0 659,048 0
GENTHERM INC COM 37253A103   3,444,788 121,767 SH   OTR   0 0 121,767
HACKETT GROUP INC COM 404609109   15,811,774 622,021 SH   SOLE   622,021 0 0
HACKETT GROUP INC COM 404609109   1,354,352 53,279 SH   OTR   0 0 53,279
HARMONIC INC COM 413160102   26,761,301 2,825,903 SH   SOLE   2,825,903 0 0
HARMONIC INC COM 413160102   5,085,712 537,034 SH   OTR   0 537,034 0
HARMONIC INC COM 413160102   2,178,640 230,057 SH   OTR   0 0 230,057
HAYWARD HLDGS INC COM 421298100   23,952,467 1,735,686 SH   SOLE   1,735,686 0 0
HAYWARD HLDGS INC COM 421298100   1,982,039 143,626 SH   OTR   0 0 143,626
MATERION CORP COM 576690101   40,648,155 512,135 SH   SOLE   512,135 0 0
MATERION CORP COM 576690101   19,419,617 244,672 SH   OTR   0 244,672 0
MATERION CORP COM 576690101   3,328,777 41,940 SH   OTR   0 0 41,940
MIMEDX GROUP INC COM 602496101   34,155,841 5,590,154 SH   SOLE   5,590,154 0 0
MIMEDX GROUP INC COM 602496101   14,318,400 2,343,437 SH   OTR   0 2,343,437 0
MIMEDX GROUP INC COM 602496101   2,791,457 456,867 SH   OTR   0 0 456,867
OOMA INC COM 683416101   26,150,738 2,027,189 SH   SOLE   2,027,189 0 0
OOMA INC COM 683416101   10,498,433 813,832 SH   OTR   0 813,832 0
OOMA INC COM 683416101   2,165,252 167,849 SH   OTR   0 0 167,849
RED VIOLET INC COM 75704L104   28,343,530 576,088 SH   SOLE   576,088 0 0
RED VIOLET INC COM 75704L104   2,454,194 49,882 SH   OTR   0 0 49,882
SONOS INC COM 83570H108   32,783,044 3,032,659 SH   SOLE   3,032,659 0 0
SONOS INC COM 83570H108   11,828,886 1,094,254 SH   OTR   0 1,094,254 0
SONOS INC COM 83570H108   3,000,543 277,571 SH   OTR   0 0 277,571
SYNAPTICS INC COM 87157D109   39,793,063 613,901 SH   SOLE   613,901 0 0
SYNAPTICS INC COM 87157D109   13,163,386 203,076 SH   OTR   0 203,076 0
SYNAPTICS INC COM 87157D109   3,966,465 61,192 SH   OTR   0 0 61,192
TECHTARGET INC COM NEW 87874R308   23,800,031 3,063,067 SH   SOLE   3,063,067 0 0
TECHTARGET INC COM NEW 87874R308   12,825,753 1,650,676 SH   OTR   0 1,650,676 0
TECHTARGET INC COM NEW 87874R308   2,025,569 260,691 SH   OTR   0 0 260,691