Institutional
Nierenberg Investment Management Company, LLC
CIK 0001282683
$201.5M
Reported AUM
44
Positions
Q1 2026
Period
2026-05-13
Filed
The Brief · Nierenberg Investment Management Company, LLC · Q1 2026
AI · grounded in 13F
Nierenberg Investment Management Company, LLC established a new position in CART valued at $10.9M. The fund also opened new stakes in FIVN for $2.1M and CCRN for $1.4M. On the sell side, the manager closed its position in GEV, resulting in a $5.0M reduction. Other notable exits included ECVT and SEB.
Portfolio · Q1 2026
Top holdings
| # | Stock | Issuer | Price | Day % | 1Y Gr. | 5Y Gr. | Value | % of book | Δ shares (QoQ) | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SGOV | ISHARES TR | $100.69 | 0.01% | 3.80% | 19.64% | $55.4M | 27.51% | — | HELD |
| 2 | EQT | EQT CORP | $52.71 | 0.27% | 1.62% | 207.04% | $33.9M | 16.85% | — | HELD |
| 3 | CRTO | CRITEO S A | $21.94 | -3.05% | -6.64% | -41.54% | $18.9M | 9.37% | — | HELD |
| 4 | LYFT | LYFT INC | $15.55 | 0.71% | 13.40% | -67.56% | $17.2M | 8.55% | — | HELD |
| 5 | KBR | KBR INC | $34.37 | -4.34% | -27.10% | -9.39% | $14.2M | 7.07% | — | HELD |
| 6 | RVSB | RIVERVIEW BANCORP INC | $5.29 | 0.00% | 11.42% | -17.10% | $11.2M | 5.55% | — | HELD |
| 7 | CART | MAPLEBEAR INC | $44.75 | -1.95% | -2.91% | 85.30% | $10.9M | 5.43% | — | HELD |
| 8 | RKT | ROCKET COS INC | $13.26 | -3.21% | -17.17% | -10.18% | $6.1M | 3.04% | — | HELD |
| 9 | GDOT | GREEN DOT CORP | $13.11 | -0.98% | 34.01% | -74.66% | $3.8M | 1.89% | — | HELD |
| 10 | BKD | BROOKDALE SR LIVING INC | $14.62 | -1.62% | 95.27% | 103.56% | $3.5M | 1.73% | — | HELD |
| 11 | DHC | DIVERSIFIED HEALTHCARE TR | $8.97 | 0.90% | 175.50% | 161.23% | $3.0M | 1.50% | — | HELD |
| 12 | CNXC | CONCENTRIX CORP | $24.90 | -6.25% | -43.53% | -84.03% | $2.3M | 1.15% | — | HELD |
| 13 | FIVN | FIVE9 INC | $27.66 | 1.82% | 14.91% | -82.37% | $2.1M | 1.02% | — | HELD |
| 14 | GLRE | GREENLIGHT CAPITAL RE LTD | $16.65 | -4.58% | 30.68% | 97.81% | $1.8M | 0.88% | — | HELD |
| 15 | FCN | FTI CONSULTING INC | $164.05 | -3.74% | -2.78% | 15.18% | $1.7M | 0.86% | — | HELD |
| 16 | EXE | EXPAND ENERGY CORPORATION | $92.42 | -0.04% | -6.41% | 107.93% | $1.7M | 0.85% | — | HELD |
| 17 | TNDM | TANDEM DIABETES CARE INC | $19.01 | 2.26% | 18.31% | -83.76% | $1.5M | 0.76% | — | HELD |
| 18 | CCRN | CROSS CTRY HEALTHCARE INC | $13.25 | 0.00% | 1.61% | -39.08% | $1.4M | 0.67% | — | HELD |
| 19 | DXC | DXC TECHNOLOGY CO | $11.24 | -4.50% | -13.49% | -69.70% | $1.3M | 0.64% | — | HELD |
| 20 | HLX | HELIX ENERGY SOLUTIONS GRP I | $9.20 | 1.43% | 56.46% | 144.68% | $1.2M | 0.61% | — | HELD |
| 21 | ADTN | ADTRAN HOLDINGS INC | $8.42 | 1.08% | -3.88% | -57.24% | $1.2M | 0.58% | — | HELD |
| 22 | OSK | OSHKOSH CORP | $142.92 | 0.07% | 11.12% | 35.00% | $846K | 0.42% | — | HELD |
| 23 | TTGT | TECHTARGET INC | $4.49 | -0.66% | -34.07% | -94.69% | $787K | 0.39% | — | HELD |
| 24 | FORR | FORRESTER RESH INC | $9.74 | -5.07% | -10.97% | -79.52% | $742K | 0.37% | — | HELD |
| 25 | OCFC | OCEANFIRST FINL CORP | $19.64 | -0.46% | 26.65% | 14.69% | $714K | 0.35% | — | HELD |
| 26 | HOPE | HOPE BANCORP INC | $14.03 | -0.64% | 49.77% | 27.91% | $710K | 0.35% | — | HELD |
| 27 | TTEC | TTEC HLDGS INC | $2.58 | 1.57% | -16.67% | -97.40% | $639K | 0.32% | — | HELD |
| 28 | CLFD | CLEARFIELD INC | $30.89 | 4.68% | -24.31% | -31.83% | $437K | 0.22% | — | HELD |
| 29 | FLR | FLUOR CORP NEW | $50.07 | 6.92% | 17.49% | 192.11% | $306K | 0.15% | — | HELD |
| 30 | PLAB | PHOTRONICS INC | $29.58 | 5.87% | 49.47% | 96.28% | $256K | 0.13% | — | HELD |
| 31 | BFH | BREAD FINANCIAL HOLDINGS INC | $110.62 | 3.39% | — | — | $253K | 0.13% | — | HELD |
| 32 | DHX | DHI GROUP INC | $4.08 | -0.24% | — | — | $238K | 0.12% | — | HELD |
| 33 | PTLO | PORTILLOS INC | $4.62 | -2.94% | — | — | $178K | 0.09% | — | HELD |
| 34 | ACH | ACCENDRA HEALTH INC | $3.34 | 0.60% | — | — | $177K | 0.09% | — | HELD |
| 35 | OSUR | ORASURE TECHNOLOGIES INC | $3.97 | 0.00% | — | — | $167K | 0.08% | — | HELD |
| 36 | OIS | OIL STS INTL INC | $7.58 | -2.19% | — | — | $135K | 0.07% | — | HELD |
| 37 | WNC | WABASH NATL CORP | $12.40 | 0.00% | — | — | $108K | 0.05% | — | HELD |
| 38 | ARHS | ARHAUS INC | $7.34 | -3.29% | — | — | $83K | 0.04% | — | HELD |
| 39 | SCYX | SCYNEXIS INC | $3.73 | -1.06% | — | — | $69K | 0.03% | — | HELD |
| 40 | TALK | TALKSPACE INC | $5.21 | -0.19% | — | — | $60K | 0.03% | — | HELD |
| 41 | CTMX | CYTOMX THERAPEUTICS INC | $3.28 | 3.47% | — | — | $59K | 0.03% | — | HELD |
| 42 | WTI | W & T OFFSHORE INC | $3.46 | -1.98% | — | — | $46K | 0.02% | — | HELD |
| 43 | OLPX | OLAPLEX HLDGS INC | — | — | — | — | $25K | 0.01% | — | HELD |
| 44 | NNBR | NN INC | $3.34 | 8.44% | — | — | $20K | 0.01% | — | HELD |
Source: SEC EDGAR · accession 0001941040-26-000327. 13F discloses long positions only — shorts, foreign equities, and options are excluded.