Holders — by stockHoldings — by fund
Nierenberg Investment Management Company, LLC
Everything this manager disclosed owning in US-listed stocks — its complete Form 13F portfolio · as of 2026-06-30 · filed with the SEC up to 45 days after quarter end · CIK 0001282683
$201.4M
disclosed book value
35
positions
23%
largest position share
Positions, as of 2026-06-30
top 35 of 35 · 13F covers long US-listed positions only — cash, bonds, private and foreign stakes are not disclosed · PUT/CALL tags = options positions (share-equivalents), not shares held
| # | Issuer | Shares | Value | % of book |
|---|---|---|---|---|
| 1 | SGOVISHARES TR | 461,047 | $46.4M | 23% |
| 2 | EQTEQT CORP | 533,363 | $28.4M | 14.1% |
| 3 | CRTOEURCRITEO S A | 1.1M | $19.2M | 9.6% |
| 4 | LYFTLYFT INC | 1.3M | $18.9M | 9.4% |
| 5 | CARTMAPLEBEAR INC | 291,888 | $13.8M | 6.9% |
| 6 | KBRKBR INC | 386,443 | $13.3M | 6.6% |
| 7 | RVSBRIVERVIEW BANCORP INC | 2.0M | $11.0M | 5.5% |
| 8 | FCNFTI CONSULTING INC | 73,887 | $11.0M | 5.5% |
| 9 | RKTROCKET COS INC | 429,631 | $6.8M | 3.4% |
| 10 | GDOTGREEN DOT CORP | 339,110 | $4.6M | 2.3% |
| 11 | DHCDIVERSIFIED HEALTHCARE TR | 456,110 | $4.2M | 2.1% |
| 12 | BKDBROOKDALE SR LIVING INC | 255,110 | $4.1M | 2% |
| 13 | FIVNFIVE9 INC | 135,810 | $2.9M | 1.4% |
| 14 | TNDMTANDEM DIABETES CARE INC | 158,910 | $2.4M | 1.2% |
| 15 | HAEHAEMONETICS CORP MASS | 26,280 | $2.0M | 1% |
| 16 | GREENLIGHT CAP RE LTD | 102,510 | $1.7M | 0.8% |
| 17 | REIRING ENERGY INC | 1.4M | $1.5M | 0.8% |
| 18 | CNXCCONCENTRIX CORP | 64,480 | $1.4M | 0.7% |
| 19 | EXEEXPAND ENERGY CORPORATION | 15,555 | $1.4M | 0.7% |
| 20 | FORRFORRESTER RESH INC | 131,110 | $1.1M | 0.5% |
| 21 | HLXHELIX ENERGY SOLUTIONS GRP I | 124,450 | $1.1M | 0.5% |
| 22 | DXCDXC TECHNOLOGY CO | 102,510 | $907,214 | 0.5% |
| 23 | OSKOSHKOSH CORP | 5,750 | $882,510 | 0.4% |
| 24 | TTECTTEC HLDGS INC | 255,555 | $495,777 | 0.2% |
| 25 | TTGTTECHTARGET INC | 136,910 | $492,876 | 0.2% |
| 26 | FLRFLUOR CORP | 6,555 | $343,416 | 0.2% |
| 27 | DHXDHI GROUP INC | 84,555 | $313,699 | 0.2% |
| 28 | OSURORASURE TECHNOLOGIES INC | 55,555 | $247,775 | 0.1% |
| 29 | ARHSARHAUS INC | 12,310 | $103,650 | 0.1% |
| 30 | OISOIL STS INTL INC | 11,555 | $92,556 | 0% |
| 31 | TALKSPACE INC | 11,555 | $60,086 | 0% |
| 32 | NNBRNN INC | 13,555 | $48,662 | 0% |
| 33 | CTMXCYTOMX THERAPEUTICS INC. | 12,555 | $47,081 | 0% |
| 34 | WTIW & T OFFSHORE INC | 13,555 | $42,698 | 0% |
| 35 | CNDTCONDUENT INC | 17,555 | $25,630 | 0% |
Source: SEC Form 13F-HR, reporting period 2026-06-30. Values are the manager's filed June-30-style quarter-end marks, not live prices. Research, not investment advice.