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 |
| ADTRAN INC | COM | 00738A106 | 301 | 16,306 | SH | SOLE | 16,306 | 0 | 0 | ||
| ARC DOCUMENT SOLUTIONS INC | COM | 00191G103 | 2,730 | 700,119 | SH | SOLE | 700,119 | 0 | 0 | ||
| ASPEN AEROGELS INC | COM | 04523Y105 | 11,082 | 321,414 | SH | SOLE | 321,414 | 0 | 0 | ||
| ASPEN AEROGELS INC | COM | 04523Y105 | 1,738 | 50,400 | SH | Call | SOLE | 50,400 | 0 | 0 | |
| ATENTO S A | SHS | L0427L204 | 5,530 | 200,000 | SH | SOLE | 200,000 | 0 | 0 | ||
| ATN INTL INC | COM | 00215F107 | 5,391 | 135,169 | SH | SOLE | 135,169 | 0 | 0 | ||
| CONDUENT INC | COM | 206787103 | 5,160 | 1,000,000 | SH | SOLE | 1,000,000 | 0 | 0 | ||
| CVD EQUIP CORP | COM | 126601103 | 2,957 | 660,000 | SH | SOLE | 660,000 | 0 | 0 | ||
| DHI GROUP INC | COM | 23331S100 | 60 | 10,088 | SH | SOLE | 10,088 | 0 | 0 | ||
| DIGI INTL INC | COM | 253798102 | 5,565 | 258,600 | SH | Call | SOLE | 258,600 | 0 | 0 | |
| DUCOMMUN INC DEL | COM | 264147109 | 284 | 5,414 | SH | SOLE | 5,414 | 0 | 0 | ||
| ENZO BIOCHEM INC | COM | 294100102 | 87 | 30,000 | SH | SOLE | 30,000 | 0 | 0 | ||
| EYENOVIA INC | COM | 30234E104 | 37 | 12,152 | SH | SOLE | 12,152 | 0 | 0 | ||
| FIRST MERCHANTS CORP | COM | 320817109 | 869 | 20,878 | SH | SOLE | 20,878 | 0 | 0 | ||
| HARVARD BIOSCIENCE INC | COM | 416906105 | 4,821 | 776,253 | SH | SOLE | 776,253 | 0 | 0 | ||
| INFORMATION SVCS GROUP INC | COM | 45675Y104 | 920 | 135,028 | SH | SOLE | 135,028 | 0 | 0 | ||
| INTEVAC INC | COM | 461148108 | 1,338 | 250,000 | SH | SOLE | 250,000 | 0 | 0 | ||
| ISHARES SILVER TR | ISHARES | 46428Q109 | 2,288 | 100,000 | SH | SOLE | 100,000 | 0 | 0 | ||
| LANTHEUS HLDGS INC | COM | 516544103 | 830 | 15,000 | SH | SOLE | 15,000 | 0 | 0 | ||
| LUNA INNOVATIONS INC | COM | 550351100 | 267 | 34,600 | SH | Call | SOLE | 34,600 | 0 | 0 | |
| LUNA INNOVATIONS INC | COM | 550351100 | 10,131 | 1,314,031 | SH | SOLE | 1,314,031 | 0 | 0 | ||
| MATERION CORP | COM | 576690101 | 943 | 11,000 | SH | SOLE | 11,000 | 0 | 0 | ||
| MINERALS TECHNOLOGIES INC | COM | 603158106 | 1,094 | 16,532 | SH | SOLE | 16,532 | 0 | 0 | ||
| NEXTGEN HEALTHCARE INC | COM | 65343C102 | 3,137 | 150,000 | SH | SOLE | 150,000 | 0 | 0 | ||
| ORTHOFIX MED INC | COM | 68752M108 | 244 | 7,452 | SH | SOLE | 7,452 | 0 | 0 | ||
| PARTY CITY HOLDCO INC | COM | 702149105 | 608 | 169,766 | SH | SOLE | 169,766 | 0 | 0 | ||
| POWELL INDS INC | COM | 739128106 | 1,282 | 66,000 | SH | SOLE | 66,000 | 0 | 0 | ||
| REALNETWORKS INC | COM NEW | 75605L708 | 540 | 930,504 | SH | SOLE | 930,504 | 0 | 0 | ||
| SERVICESOURCE INTL INC | COM | 81763U100 | 3,080 | 2,369,290 | SH | SOLE | 2,369,290 | 0 | 0 | ||
| SIERRA WIRELESS INC | COM | 826516106 | 1,542 | 85,500 | SH | Call | SOLE | 85,500 | 0 | 0 | |
| SPARK NETWORKS SE | SPONSORED ADS | 846517100 | 1,350 | 500,000 | SH | SOLE | 500,000 | 0 | 0 | ||
| SPDR GOLD TR | GOLD SHS | 78463V107 | 4,516 | 25,000 | SH | SOLE | 25,000 | 0 | 0 | ||
| STEEL DYNAMICS INC | COM | 858119100 | 501 | 6,000 | SH | SOLE | 6,000 | 0 | 0 | ||
| STRATASYS LTD | SHS | M85548101 | 3,908 | 153,900 | SH | Call | SOLE | 153,900 | 0 | 0 | |
| TWIN DISC INC | COM | 901476101 | 11,304 | 679,335 | SH | SOLE | 679,335 | 0 | 0 | ||