Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

Nierenberg Investment Management Company, Inc. 13F Holdings -- Portfolio & Top Positions (2026-03-31)

Nierenberg Investment Management Company, Inc. (CIK 1282683) reported $201.5M across 42 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: SGOV ($55.4M, 27.51%), EQT ($33.9M, 16.85%), CRTO ($18.9M, 9.37%), LYFT ($17.2M, 8.55%), KBR ($14.2M, 7.07%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1SGOVISHARES TR$55.4M27.51%550,597Trimmed
2EQTEQT CORP$33.9M16.85%533,363Hold
3CRTOCRITEO S A$18.9M9.37%1.1MAdded
4LYFTLYFT INC$17.2M8.55%1.3MAdded
5KBRKBR INC$14.2M7.07%386,443Added
6RVSBRIVERVIEW BANCORP INC$11.2M5.55%2.0MHold
7CARTMAPLEBEAR INC$10.9M5.43%291,888New
8RKTROCKET COS INC$6.1M3.04%429,631Trimmed
9GDOTGREEN DOT CORP$3.8M1.89%339,110Hold
10BKDBROOKDALE SR LIVING INC$3.5M1.73%255,110Trimmed
11DHCDIVERSIFIED HEALTHCARE TR$3.0M1.50%456,110Hold
12CNXCCONCENTRIX CORP$2.3M1.15%84,480Hold
13FIVNFIVE9 INC$2.1M1.02%135,810New
14GLREGREENLIGHT CAPITAL RE LTD$1.8M0.88%102,510Added
15FCNFTI CONSULTING INC$1.7M0.86%9,780Added
16CHKEXPAND ENERGY CORPORATION$1.7M0.85%15,555Trimmed
17TNDMTANDEM DIABETES CARE INC$1.5M0.76%79,510Added
18CCRNCROSS CTRY HEALTHCARE INC$1.4M0.67%144,555New
19DXCDXC TECHNOLOGY CO$1.3M0.64%102,510Hold
20HLXHELIX ENERGY SOLUTIONS GRP I$1.2M0.61%124,450Hold
21ADTNADTRAN HOLDINGS INC$1.2M0.58%93,110Hold
22OSKOSHKOSH CORP$846,4580.42%5,750Hold
23TTGTTECHTARGET INC$787,2910.39%202,910Added
24FORRFORRESTER RESH INC$742,0830.37%131,110Added
25OCFCOCEANFIRST FINL CORP$713,5720.35%39,555New

Source: SEC Form 13F filings · as of 2026-03-31