BEACONLIGHT CAPITAL, LLC — 13F Holdings & Portfolio
CIK 1569537 · latest 13F-HR filed 2026-08-14
BEACONLIGHT CAPITAL, LLC manages $283.3M in 13F-reported U.S. long-equity assets across 33 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SPY (15.66%), SXT (9.65%), CSTM (8.78%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 12 new positions, exited 14, added to 9, and trimmed 10.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
27TH FLOOR
NEW YORK, NY 10019
$283.3M
Long-equity book
33
Distinct positions
2026-06-30
Filed 2026-08-14
+12 / −14 / ↑9 / ↓10
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- SENSIENT TECHNOLOGIES CORP$16.6M +154.8%
- SNOWFLAKE INC$10.8M +389.9%
- NATERA INC$7.8M +115.4%
- SOMNIGROUP INTERNATIONAL INC$5.7M +129.9%
- JAMES HARDIE INDS PLC$5.6M +193.0%
Top Trims
- STMICROELECTRONICS N V-$10.2M -76.7%
- RESIDEO TECHNOLOGIES INC-$10.0M -49.9%
- GULFPORT ENERGY CORP-$4.6M -63.8%
- CONSTELLIUM SE-$3.9M -13.7%
- CELSIUS HLDGS INC-$3.8M -68.6%
New Positions
- WERNER ENTERPRISES INC$12.0M
- COMPASS INC$8.0M
- DELTA AIR LINES INC$7.7M
- KNIGHT-SWIFT TRANSN HLDGS IN$6.9M
- TWILIO INC$6.1M
Exited Positions
- FEDEX CORP$5.4M
- EQT CORP$4.0M
- SOLSTICE ADVANCED MATLS INC$3.5M
- SERVICENOW INC$3.0M
- CELANESE CORP DEL$2.7M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $44.4M | 15.66% | 59,400 | SH |
| 2 | SENSIENT TECHNOLOGIES CORP | SXT | 81725T100 | $27.3M | 9.65% | 221,811 | SH |
| 3 | CONSTELLIUM SE | CSTM | F21107101 | $24.9M | 8.78% | 779,899 | SH |
| 4 | NATERA INC | NTRA | 632307104 | $14.5M | 5.11% | 53,312 | SH |
| 5 | SNOWFLAKE INC | SNOW | 833445109 | $13.5M | 4.78% | 53,180 | SH |
| 6 | CHENIERE ENERGY INC | LNG | 16411R208 | $13.3M | 4.69% | 55,621 | SH |
| 7 | WERNER ENTERPRISES INC | WERN | 950755108 | $12.0M | 4.25% | 276,026 | SH |
| 8 | INVESCO QQQ TR Put | QQQ | 46090E103 | $11.7M | 4.13% | 15,900 | SH |
| 9 | SOMNIGROUP INTERNATIONAL INC | SGI | 88023U101 | $10.1M | 3.55% | 128,310 | SH |
| 10 | RESIDEO TECHNOLOGIES INC | REZI | 76118Y104 | $10.0M | 3.55% | 322,960 | SH |
| 11 | JAMES HARDIE INDS PLC | JHX | G4253H101 | $8.5M | 3.01% | 326,195 | SH |
| 12 | COMPASS INC | COMP | 20464U100 | $8.0M | 2.83% | 649,901 | SH |
| 13 | TECK RESOURCES LTD | TECK | 878742204 | $8.0M | 2.81% | 133,807 | SH |
| 14 | DELTA AIR LINES INC | DAL | 247361702 | $7.7M | 2.71% | 81,820 | SH |
| 15 | KNIGHT-SWIFT TRANSN HLDGS IN | KNX | 499049104 | $6.9M | 2.42% | 88,047 | SH |
| 16 | UNITY SOFTWARE INC | U | 91332U101 | $6.1M | 2.14% | 212,475 | SH |
| 17 | TWILIO INC | TWLO | 90138F102 | $6.1M | 2.14% | 29,366 | SH |
| 18 | BROOKDALE SR LIVING INC | BKD | 112463104 | $5.9M | 2.07% | 364,976 | SH |
| 19 | SCHOLAR ROCK HLDG CORP | SRRK | 80706P103 | $4.8M | 1.71% | 87,893 | SH |
| 20 | UNITED AIRLS HLDGS INC | UAL | 910047109 | $4.8M | 1.69% | 35,175 | SH |
| 21 | TRANSOCEAN LTD | RIG | H8817H100 | $4.8M | 1.69% | 977,964 | SH |
| 22 | TANDEM DIABETES CARE INC | TNDM | 875372203 | $4.0M | 1.42% | 266,009 | SH |
| 23 | HUMANA INC | HUM | 444859102 | $3.3M | 1.15% | 8,220 | SH |
| 24 | VICOR CORP | VICR | 925815102 | $3.1M | 1.10% | 8,218 | SH |
| 25 | STMICROELECTRONICS N V | STM | 861012102 | $3.1M | 1.09% | 41,332 | SH |
| 26 | CHAMPION HOMES INC | SKY | 830830105 | $3.0M | 1.06% | 34,056 | SH |
| 27 | DIGIMARC CORP | DMRC | 25382K100 | $2.8M | 0.98% | 338,948 | SH |
| 28 | GULFPORT ENERGY CORP | GPOR | 402635502 | $2.6M | 0.92% | 15,325 | SH |
| 29 | ELEVANCE HEALTH INC FORMERLY | ELV | 036752103 | $2.3M | 0.81% | 5,946 | SH |
| 30 | QUIDELORTHO CORP | QDEL | 219798105 | $1.8M | 0.64% | 102,800 | SH |
| 31 | CELSIUS HLDGS INC | CELH | 15118V207 | $1.7M | 0.62% | 59,576 | SH |
| 32 | VENTURE GLOBAL INC | VG | 92333F101 | $1.4M | 0.48% | 122,022 | SH |
| 33 | TRANSMEDICS GROUP INC | TMDX | 89377M109 | $1.0M | 0.36% | 15,406 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $283.3M | 33 | 0000919574-26-005460 |
| 2026-03-31 | 2026-05-14 | $189.8M | 34 | 0000919574-26-003095 |
| 2025-12-31 | 2026-02-17 | $171.2M | 23 | 0000919574-26-001169 |
| 2025-09-30 | 2025-11-14 | $202.7M | 28 | 0000919574-25-006888 |