Nierenberg Investment Management Company, LLC
CIK 1282683 · Holdings on Dec 31, 2025 · First reported Feb 13, 2026
Top ten holdings
Q4 2025- SGOV32.44%
- EQT14.42%
- RKT13.06%
- CRTO9.24%
- LYFT7.95%
- RVSB5.15%
- BKD2.23%
- GDOT2.19%
- KBR1.50%
- CNXC1.35%
Share classes counted separately89.53%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- CRTOWeight increased · +3.93 pp5.31% → 9.24%Shares +463.93K (+109.17%)
- LYFTWeight decreased · -1.95 pp9.90% → 7.95%Shares 0 (0.00%)
- EQTWeight decreased · -1.73 pp16.15% → 14.42%Shares -3.33K (-0.62%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 26
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | SGOVISHARES 0-3 MONTH TREASURY B0-3 MNTH TREASRY View history and evidence | $64.30M | 32.44% | 640.60K shares | Prior unavailable +640.60K | New | ↗▾ |
| 02 | EQTEQT CORP View history and evidence | $28.59M | 14.42% | 533.36K shares | 16.15% → 14.42%-1.73 pp -3.33K (-0.62%) | Reduced | ↗▾ |
| 03 | RKTROCKET COS INC-CLASS ACOM CL A View history and evidence | $25.88M | 13.06% | 1.34M shares | Prior unavailable +1.34M | New | ↗▾ |
| 04 | CRTOCRITEO SA-SPONSPONS ADS View history and evidence | $18.32M | 9.24% | 888.89K shares | 5.31% → 9.24%+3.93 pp +463.93K (+109.17%) | Added | ↗▾ |
| 05 | LYFTLYFT INC-ACL A COM View history and evidence | $15.76M | 7.95% | 813.55K shares | 9.90% → 7.95%-1.95 pp 0 (0.00%) | Unchanged | ↗▾ |
| 06 | RVSBRIVERVIEW BANCORP INC View history and evidence | $10.20M | 5.15% | 2.03M shares | 6.03% → 5.15%-0.88 pp 0 (0.00%) | Unchanged | ↗▾ |
| 07 | BKDBROOKDALE SENIOR LIVING INC View history and evidence | $4.43M | 2.23% | 410.11K shares | 1.92% → 2.23%+0.31 pp 0 (0.00%) | Unchanged | ↗▾ |
| 08 | GDOTGREEN DOT CORP-CLASS ACL A View history and evidence | $4.34M | 2.19% | 339.11K shares | 2.52% → 2.19%-0.33 pp 0 (0.00%) | Unchanged | ↗▾ |
| 09 | KBRKBR INC View history and evidence | $2.96M | 1.50% | 73.71K shares | 1.40% → 1.50%+0.10 pp +20.00K (+37.24%) | Added | ↗▾ |
| 10 | CNXCCONCENTRIX CORP View history and evidence | $2.68M | 1.35% | 64.48K shares | 1.29% → 1.35%+0.06 pp +14.00K (+27.73%) | Added | ↗▾ |
Options overlay 4
$7.76M notionalPut and Call positions are separate. Notional is based on underlying securities, not option premium, market value or net exposure. Quantities are underlying shares.
| Security | Put / Call | Underlying shares | Notional | Quantity change | |
|---|---|---|---|---|---|
GEVGE VERNOVA INC View history and evidence | Put | 7.60K | $4.97M | -3.60K (-32.14%) | ▾ |
EXEEXPAND ENERGY CORP View history and evidence | Call | 14.00K | $1.55M | 0 (0.00%) | ▾ |
CNXCCONCENTRIX CORP View history and evidence | Call | 20.00K | $831.60K | +20.00K | ▾ |
3 / 4 options · preview only
Exited positions 15
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| PTB POTBELLY CORP | Non-derivative | -2,980,564 | -$50.79M | SEC filing ↗ | SEC filing ↗ |
| 62482R107 MR COOPER GROUP INC | Non-derivative | -126,121 | -$26.59M | SEC filing ↗ | SEC filing ↗ |
| SPY SS SPDR S&P 500 ETF TRUST-US | Put | -25,000 | -$16.65M | SEC filing ↗ | SEC filing ↗ |
3 / 15 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1282683 · Period 2025-12-31
Data loaded 2026-09-23 · First reported 2026-02-13
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 205958657
}Research all 47 reported holdings.
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