Grizzlyrock Capital, LLC
In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 14, 2025), Grizzlyrock Capital, LLC reported 21 stock positions worth $133.0 million. Its top holding was Magnite (MGNI) at 17.7% of the portfolio, followed by Ferroglobe (GSM, 12.5%) and Driven Brands (DRVN, 8.9%). Compared with Q1 2025, it opened 6 new positions, sold out of 6, added to 10 and reduced 4. The biggest buy was Magnite (MGNI, shares +8%) and the biggest sale Driven Brands (DRVN, shares −21%).
- Most Recent 13F
- Q2 2026
- Location
- CHICAGO, IL
- CIK
- 0002011732
- Portfolio Value
- $133.0M (Q2 2025)
- SEC Filing
- 0001214659-25-012216 ↗ filed Aug 14, 2025
Holdings Value
Holdings 21 stocks · $133.0M
| MGNI Magnite Inc. | 17.67% | 974,323 | $23.5M | Add +8.4% |
| GSM Ferroglobe PLC | 12.53% | 4,540,272 | $16.7M | Add +4.3% |
| DRVN Driven Brands Holdings Inc. | 8.95% | 677,631 | $11.9M | Reduce -20.8% |
| GEL Genesis Energy L.P. | 8.17% | 630,346 | $10.9M | Reduce -1.1% |
| DAR Darling Ingredients Inc. | 7.50% | 262,700 | $10.0M | Add +29.1% |
| PRGO Perrigo Co. PLC | 6.06% | 301,745 | $8.1M | Add +4.8% |
| XPER Xperi Inc. | 5.56% | 934,027 | $7.4M | Add +4.9% |
| TDW Tidewater Inc. | 4.66% | 134,190 | $6.2M | Add +6.3% |
| AMTM Amentum Holdings Inc. | 4.50% | 253,363 | $6.0M | Add +54.3% |
| LFCR Lifecore Biomedical Inc. | 4.49% | 734,533 | $6.0M | New |
| AMN Amn Healthcare Services Inc. | 4.43% | 285,218 | $5.9M | Add +177.1% |
| IAS Integral Ad Science Holding | 3.27% | 523,139 | $4.3M | New |
| GPRE Green Plains Inc. | 2.54% | 559,082 | $3.4M | Add +3.2% |
| MATW Matthews Intl Corp. Class A | 1.89% | 105,325 | $2.5M | New |
| OEC Orion SA | 1.63% | 206,280 | $2.2M | Add +6.5% |
| OPAL Opal Fuels Inc. Class A | 1.54% | 844,739 | $2.0M | Reduce -18.9% |
| HOS Hornbeck Offshore Services I filed as HELIX ENERGY SOLUTIONS GRP I | 1.53% | 325,537 | $2.0M | New |
| GRFS Grifols SA-ADR | 1.13% | 166,000 | $1.5M | New |
| ROG Rogers Corp. | 1.11% | 21,500 | $1.5M | New |
| AMBP Ardagh Metal Packaging SA | 0.72% | 224,162 | $959K | Reduce -87.3% |
| EFXT Enerflex Ltd. | 0.14% | 24,000 | $189K | No change |
Options reported separately and not counted above: IWM puts ($13.8M).
Portfolio Sells Q1 2025 → Q2 2025
| DRVN Driven Brands Holdings Inc. | Reduce -20.8% | 8.95% | −4.35 |
| AMBP Ardagh Metal Packaging SA | Reduce -87.3% | 0.72% | −4.11 |
| CZR Caesars Entertainment Inc. | Sold out | 0.00% | −3.88 |
| EVRI Everi Holdings Inc. | Sold out | 0.00% | −2.48 |
| HDSN Hudson Technologies Inc. | Sold out | 0.00% | −2.43 |
| CLW Clearwater Paper Corp. | Sold out | 0.00% | −2.29 |
| SHLS Shoals Technologies Group -A | Sold out | 0.00% | −1.49 |
| GEL Genesis Energy L.P. | Reduce -1.1% | 8.17% | −0.90 |
| CASH Pathward Financial Inc. | Sold out | 0.00% | −0.57 |
| OPAL Opal Fuels Inc. Class A | Reduce -18.9% | 1.54% | −0.20 |
Portfolio Buys Q1 2025 → Q2 2025
| MGNI Magnite Inc. | Add +8.4% | 17.67% | +8.38 |
| LFCR Lifecore Biomedical Inc. | New | 4.49% | +4.49 |
| IAS Integral Ad Science Holding | New | 3.27% | +3.27 |
| AMN Amn Healthcare Services Inc. | Add +177.1% | 4.43% | +2.15 |
| MATW Matthews Intl Corp. Class A | New | 1.89% | +1.89 |
| AMTM Amentum Holdings Inc. | Add +54.3% | 4.50% | +1.79 |
| DAR Darling Ingredients Inc. | Add +29.1% | 7.50% | +1.73 |
| HOS Hornbeck Offshore Services I | New | 1.53% | +1.53 |
| GRFS Grifols SA-ADR | New | 1.13% | +1.13 |
| ROG Rogers Corp. | New | 1.11% | +1.11 |
| GPRE Green Plains Inc. | Add +3.2% | 2.54% | +0.15 |
| TDW Tidewater Inc. | Add +6.3% | 4.66% | −0.19 |
| OEC Orion SA | Add +6.5% | 1.63% | −0.65 |
| XPER Xperi Inc. | Add +4.9% | 5.56% | −0.68 |
| PRGO Perrigo Co. PLC | Add +4.8% | 6.06% | −1.26 |
| GSM Ferroglobe PLC | Add +4.3% | 12.53% | −2.12 |
Options Activity Q1 2025 → Q2 2025
| IWM iShares Russell 2000 ETF | put | New | 64,000 | $13.8M |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 20 | $143.0M | MGNI, EEFT, AMN, GSM, REAL BROKERAGE INC/THE |
| Q1 2026 | 18 | $126.3M | GSM, DRVN, MGNI, AMN, OLN |
| Q4 2025 | 22 | $133.6M | GSM, GEL, EEFT, MGNI, AMN |
| Q3 2025 | 23 | $128.8M | GSM, GEL, AMN, DRVN, MGNI |
| Q2 2025 | 21 | $133.0M | MGNI, GSM, DRVN, GEL, DAR |
| Q1 2025 | 21 | $110.3M | GSM, DRVN, MGNI, GEL, PRGO |
| Q4 2024 | 17 | $95.8M | GSM, DRVN, MGNI, XPER, PRGO |
| Q3 2024 | 18 | $116.0M | GSM, DRVN, MGNI, CASH, PRGO |
| Q2 2024 | 19 | $120.3M | GSM, DRVN, MGNI, CASH, CLMT |
| Q1 2024 | 20 | $121.9M | GSM, OEC, GPRE, CASH, AMBP |