Nierenberg Investment Management Company, Ll
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$201.5M
Q ending 2026-03-31
Prior quarter
$206.0M
Q ending 2025-12-31
Change
-2.2% QoQ · +10.0% YoY
Positions
46
reported holdings
Largest positions
All 46 reported positions, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Ishares Tr | SGOV | Shares | $55.4M | 551K |
| Eqt Corp | EQT | Shares | $33.9M | 533K |
| Criteo S A | CRTO | Shares | $18.9M | 1.1M |
| Lyft Inc | LYFT | Shares | $17.2M | 1.3M |
| Kbr Inc | KBR | Shares | $14.2M | 386K |
| Riverview Bancorp Inc | RVSB | Shares | $11.2M | 2.0M |
| Maplebear Inc | CART | Shares | $10.9M | 292K |
| Rocket Cos Inc | RKT | Shares | $6.1M | 430K |
| Green Dot Corp | GDOT | Shares | $3.8M | 339K |
| Brookdale Sr Living Inc | BKD | Shares | $3.5M | 255K |
| Diversified Healthcare Tr | DHC | Shares | $3.0M | 456K |
| Five9 Inc | FIVN | Shares | $2.1M | 136K |
| Greenlight Capital Re Ltd | Shares | $1.8M | 103K | |
| Concentrix Corp | CNXC | Shares | $1.8M | 64K |
| Fti Consulting Inc | FCN | Shares | $1.7M | 10K |
| Expand Energy Corporation | EXE | Shares | $1.7M | 16K |
| Tandem Diabetes Care Inc | TNDM | Shares | $1.5M | 80K |
| Cross Ctry Healthcare Inc | CCRN | Shares | $1.4M | 145K |
| Dxc Technology Co | DXC | Shares | $1.3M | 103K |
| Helix Energy Solutions Grp I | HLX | Shares | $1.2M | 124K |
| Adtran Holdings Inc | ADTN | Shares | $1.2M | 93K |
| Oshkosh Corp | OSK | Shares | $846K | 6K |
| Techtarget Inc | TTGT | Shares | $787K | 203K |
| Forrester Resh Inc | FORR | Shares | $742K | 131K |
| Oceanfirst Finl Corp | OCFC | Shares | $714K | 40K |
| Hope Bancorp Inc | HOPE | Shares | $710K | 64K |
| Ttec Hldgs Inc | TTEC | Shares | $639K | 256K |
| Concentrix Corp | CNXC | Call | $547K | 20K |
| Clearfield Inc | CLFD | Shares | $437K | 17K |
| Fluor Corp New | FLR | Shares | $306K | 7K |
| Photronics Inc | PLAB | Shares | $256K | 6K |
| Bread Financial Holdings Inc | BFH | Shares | $253K | 3K |
| Dhi Group Inc | DHX | Shares | $238K | 85K |
| Portillos Inc | PTLO | Shares | $178K | 34K |
| Orasure Technologies Inc | OSUR | Shares | $167K | 56K |
| Oil Sts Intl Inc | OIS | Shares | $135K | 12K |
| Accendra Health Inc | ACH | Call | $114K | 50K |
| Wabash Natl Corp | WNC | Shares | $108K | 13K |
| Arhaus Inc | ARHS | Shares | $83K | 12K |
| Scynexis Inc | SCYXEUR | Shares | $69K | 76K |
| Accendra Health Inc | ACH | Shares | $63K | 28K |
| Talkspace Inc | TALK | Shares | $60K | 12K |
| Cytomx Therapeutics Inc | CTMX | Shares | $59K | 13K |
| W & T Offshore Inc | WTI | Shares | $46K | 14K |
| Olaplex Hldgs Inc | Shares | $25K | 13K | |
| Nn Inc | NNBR | Shares | $20K | 14K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.