Beaconlight Capital, LLC
In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), Beaconlight Capital, LLC reported 23 stock positions worth $171.2 million. Its top holding was Constellium (CSTM) at 14.8% of the portfolio, followed by Resideo Technologies (REZI, 14.2%) and Sensient Technologies (SXT, 7.6%). Compared with Q3 2025, it opened 4 new positions, sold out of 9, added to 7 and reduced 12. The biggest buy was Constellium (CSTM, shares +5%) and the biggest sale Advance Auto Parts (AAP, shares −92%).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001569537
- Portfolio Value
- $171.2M (Q4 2025)
- SEC Filing
- 0000919574-26-001169 ↗ filed Feb 17, 2026
Holdings Value
Holdings 23 stocks · $171.2M
| CSTM Constellium SE | 14.75% | 1,339,934 | $25.3M | Add +5.2% |
| REZI Resideo Technologies Inc. | 14.22% | 693,311 | $24.3M | Add +7.5% |
| SXT Sensient Technologies Corp. | 7.57% | 138,033 | $13.0M | Add +20.8% |
| GPOR Gulfport Energy Corp. | 5.66% | 46,572 | $9.7M | Reduce -6.2% |
| TECK Teck Resources Ltd.-CLS B | 5.35% | 191,235 | $9.2M | Reduce -18.2% |
| SGI Somnigroup International Inc. | 4.92% | 94,357 | $8.4M | Reduce -4.1% |
| CRS Carpenter Technology | 4.68% | 25,445 | $8.0M | New |
| SNDK Sandisk Corp. | 4.42% | 31,864 | $7.6M | Reduce -57.4% |
| U Unity Software Inc. | 4.40% | 170,521 | $7.5M | Add +45.4% |
| LNG Cheniere Energy Inc. | 4.07% | 35,835 | $7.0M | Reduce -40.4% |
| QDEL Quidelortho Corp. | 3.99% | 239,049 | $6.8M | Add +20.1% |
| TWLO Twilio Inc. Class A | 3.83% | 46,060 | $6.6M | Add +96.7% |
| SNOW Snowflake Inc. | 3.55% | 27,675 | $6.1M | Add +17.4% |
| NTRA Natera Inc. | 3.12% | 23,286 | $5.3M | Reduce -0.6% |
| EQT Eqt Corp. | 2.91% | 92,889 | $5.0M | Reduce -26.6% |
| GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD | 2.77% | 136,043 | $4.7M | Reduce -15.9% |
| TMDX Transmedics Group Inc. | 2.08% | 29,344 | $3.6M | Reduce -33.6% |
| STX Seagate Technology Holdings | 2.03% | 12,651 | $3.5M | Reduce -51.8% |
| VICR Vicor Corp. | 1.87% | 29,257 | $3.2M | New |
| DMRC Digimarc Corp. | 1.65% | 431,772 | $2.8M | Reduce -0.3% |
| JHX James Hardie Ind PLC | 1.41% | 116,640 | $2.4M | New |
| FICO Fair Isaac Corp. | 0.50% | 502 | $849K | New |
| AAP Advance Auto Parts Inc. | 0.25% | 10,920 | $429K | Reduce -91.9% |
Portfolio Sells Q3 2025 → Q4 2025
| AAP Advance Auto Parts Inc. | Reduce -91.9% | 0.25% | −3.85 |
| STM Stmicroelectronics NV-NY SHS | Sold out | 0.00% | −3.64 |
| YMM Full Truck Alliance -SPN ADR | Sold out | 0.00% | −2.93 |
| LNG Cheniere Energy Inc. | Reduce -40.4% | 4.07% | −2.90 |
| CP Canadian Pacific Kansas City | Sold out | 0.00% | −2.08 |
| MBC Masterbrand Inc. | Sold out | 0.00% | −1.90 |
| BABA Alibaba Group Holding-SP ADR | Sold out | 0.00% | −1.89 |
| TOL Toll Brothers Inc. | Sold out | 0.00% | −1.88 |
| CCOI Cogent Communications Holdin | Sold out | 0.00% | −1.76 |
| ADPT Adaptive Biotechnologies | Sold out | 0.00% | −1.27 |
| STX Seagate Technology Holdings | Reduce -51.8% | 2.03% | −1.02 |
| DV Doubleverify Holdings Inc. | Sold out | 0.00% | −0.55 |
| EQT Eqt Corp. | Reduce -26.6% | 2.91% | −0.49 |
| DMRC Digimarc Corp. | Reduce -0.3% | 1.65% | −0.43 |
| TMDX Transmedics Group Inc. | Reduce -33.6% | 2.08% | −0.36 |
| GDS GDS Holdings Ltd. - ADR | Reduce -15.9% | 2.77% | −0.32 |
| SNDK Sandisk Corp. | Reduce -57.4% | 4.42% | +0.28 |
| TECK Teck Resources Ltd.-CLS B | Reduce -18.2% | 5.35% | +0.29 |
| SGI Somnigroup International Inc. | Reduce -4.1% | 4.92% | +0.83 |
| GPOR Gulfport Energy Corp. | Reduce -6.2% | 5.66% | +1.23 |
| NTRA Natera Inc. | Reduce -0.6% | 3.12% | +1.26 |
Portfolio Buys Q3 2025 → Q4 2025
| CSTM Constellium SE | Add +5.2% | 14.75% | +5.40 |
| CRS Carpenter Technology | New | 4.68% | +4.68 |
| TWLO Twilio Inc. Class A | Add +96.7% | 3.83% | +2.67 |
| SXT Sensient Technologies Corp. | Add +20.8% | 7.57% | +2.29 |
| U Unity Software Inc. | Add +45.4% | 4.40% | +2.08 |
| VICR Vicor Corp. | New | 1.87% | +1.87 |
| JHX James Hardie Ind PLC | New | 1.41% | +1.41 |
| QDEL Quidelortho Corp. | Add +20.1% | 3.99% | +1.09 |
| SNOW Snowflake Inc. | Add +17.4% | 3.55% | +0.92 |
| FICO Fair Isaac Corp. | New | 0.50% | +0.50 |
| REZI Resideo Technologies Inc. | Add +7.5% | 14.22% | +0.48 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 31 | $227.2M | SXT, CSTM, NTRA, SNOW, LNG |
| Q1 2026 | 33 | $177.3M | CSTM, REZI, STM, SXT, TECK |
| Q4 2025 | 23 | $171.2M | CSTM, REZI, SXT, GPOR, TECK |
| Q3 2025 | 28 | $202.7M | REZI, CSTM, LNG, SXT, TECK |
| Q2 2025 | 29 | $170.9M | REZI, LNG, SXT, STX, SABR |
| Q1 2025 | 21 | $146.3M | REZI, CCOI, LNG, SABR, QDEL |
| Q4 2024 | 28 | $250.1M | DMRC, CCOI, QDEL, REZI, LNG |
| Q3 2024 | 27 | $243.0M | REZI, CCOI, DMRC, QDEL, SABR |
| Q2 2024 | 29 | $197.3M | DMRC, CSTM, LNG, CCOI, REZI |
| Q1 2024 | 26 | $222.9M | CSTM, CCOI, DMRC, GM, REZI |