Beaconlight Capital, LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 14, 2026), Beaconlight Capital, LLC reported 33 stock positions worth $177.3 million. Its top holding was Constellium (CSTM) at 16.2% of the portfolio, followed by Resideo Technologies (REZI, 11.3%) and Stmicroelectronics NV-NY SHS (STM, 7.5%). Compared with Q4 2025, it opened 15 new positions, sold out of 5, added to 4 and reduced 13. The biggest buy was a new position in Stmicroelectronics NV-NY SHS (STM) and the biggest sale an exit from Carpenter Technology (CRS).

Most Recent 13F
Q2 2026
Location
New York, NY
CIK
0001569537
Portfolio Value
$177.3M (Q1 2026)
SEC Filing
0000919574-26-003095 ↗ filed May 14, 2026

Holdings Value

0$100.0M$200.0M$300.0M Q1 2024: $222.9M Q1 2024 Q2 2024: $197.3M Q2 2024 Q3 2024: $243.0M Q3 2024 Q4 2024: $250.1M Q4 2024 Q1 2025: $146.3M Q1 2025 Q2 2025: $170.9M Q2 2025 Q3 2025: $202.7M Q3 2025 Q4 2025: $171.2M Q4 2025 Q1 2026: $177.3M $177.3M Q1 2026 Q2 2026: $227.2M Q2 2026

Holdings 33 stocks · $177.3M
CSTM Constellium SE 16.24% 1,171,812 $28.8M Reduce -12.6%
REZI Resideo Technologies Inc. 11.30% 594,234 $20.0M Reduce -14.3%
STM Stmicroelectronics NV-NY SHS 7.49% 384,477 $13.3M New
SXT Sensient Technologies Corp. 6.05% 124,182 $10.7M Reduce -10.0%
TECK Teck Resources Ltd.-CLS B 5.35% 183,299 $9.5M Reduce -4.2%
LNG Cheniere Energy Inc. 4.77% 29,799 $8.5M Reduce -16.8%
U Unity Software Inc. 4.27% 345,309 $7.6M Add +102.5%
GPOR Gulfport Energy Corp. 4.05% 33,981 $7.2M Reduce -27.0%
NTRA Natera Inc. 3.79% 33,589 $6.7M Add +44.3%
CELH Celsius Holdings Inc. 3.13% 156,391 $5.5M New
FDX FedEx Corp. 3.05% 15,201 $5.4M New
TNDM Tandem Diabetes Care Inc. 2.74% 253,877 $4.9M New
SGI Somnigroup International Inc. 2.47% 59,199 $4.4M Reduce -37.3%
TMDX Transmedics Group Inc. 2.38% 42,478 $4.2M Add +44.8%
EQT Eqt Corp. 2.25% 62,760 $4.0M Reduce -32.4%
SOLS Solstice Adv Materials Inc. 1.99% 46,433 $3.5M New
NOW ServiceNow Inc. 1.69% 28,682 $3.0M New
JHX James Hardie Ind PLC 1.64% 153,863 $2.9M Add +31.9%
SNOW Snowflake Inc. 1.56% 18,317 $2.8M Reduce -33.8%
CE Celanese Corp. 1.52% 41,055 $2.7M New
AVGO Broadcom Inc. 1.49% 8,516 $2.6M New
QDEL Quidelortho Corp. 1.41% 152,057 $2.5M Reduce -36.4%
VICR Vicor Corp. 1.22% 13,477 $2.2M Reduce -53.9%
RIG Transocean Ltd. 1.22% 326,947 $2.2M New
DMRC Digimarc Corp. 1.20% 431,772 $2.1M No change
SNDK Sandisk Corp. 1.05% 2,942 $1.9M Reduce -90.8%
CP Canadian Pacific Kansas City 0.90% 20,314 $1.6M New
LYB Lyondellbasell Indu Class A 0.78% 17,202 $1.4M New
GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD 0.73% 31,989 $1.3M Reduce -76.5%
VG Venture Global Inc. Class A 0.67% 75,636 $1.2M New
MEOH Methanex Corp. 0.58% 17,308 $1.0M New
CF CF Industries Holdings Inc. 0.53% 7,195 $934K New
ONTO Onto Innovation Inc. 0.46% 3,941 $808K New

Options reported separately and not counted above: SPY puts ($12.5M).

Portfolio Sells Q4 2025 → Q1 2026
CRS Carpenter Technology Sold out 0.00% −4.68
TWLO Twilio Inc. Class A Sold out 0.00% −3.83
SNDK Sandisk Corp. Reduce -90.8% 1.05% −3.36
REZI Resideo Technologies Inc. Reduce -14.3% 11.30% −2.92
QDEL Quidelortho Corp. Reduce -36.4% 1.41% −2.58
SGI Somnigroup International Inc. Reduce -37.3% 2.47% −2.45
GDS GDS Holdings Ltd. - ADR Reduce -76.5% 0.73% −2.05
STX Seagate Technology Holdings Sold out 0.00% −2.03
SNOW Snowflake Inc. Reduce -33.8% 1.56% −1.99
GPOR Gulfport Energy Corp. Reduce -27.0% 4.05% −1.60
SXT Sensient Technologies Corp. Reduce -10.0% 6.05% −1.52
EQT Eqt Corp. Reduce -32.4% 2.25% −0.66
VICR Vicor Corp. Reduce -53.9% 1.22% −0.65
FICO Fair Isaac Corp. Sold out 0.00% −0.50
AAP Advance Auto Parts Inc. Sold out 0.00% −0.25
TECK Teck Resources Ltd.-CLS B Reduce -4.2% 5.35% +0.00
LNG Cheniere Energy Inc. Reduce -16.8% 4.77% +0.70
CSTM Constellium SE Reduce -12.6% 16.24% +1.49

Portfolio Buys Q4 2025 → Q1 2026
STM Stmicroelectronics NV-NY SHS New 7.49% +7.49
CELH Celsius Holdings Inc. New 3.13% +3.13
FDX FedEx Corp. New 3.05% +3.05
TNDM Tandem Diabetes Care Inc. New 2.74% +2.74
SOLS Solstice Adv Materials Inc. New 1.99% +1.99
NOW ServiceNow Inc. New 1.69% +1.69
CE Celanese Corp. New 1.52% +1.52
AVGO Broadcom Inc. New 1.49% +1.49
RIG Transocean Ltd. New 1.22% +1.22
CP Canadian Pacific Kansas City New 0.90% +0.90
LYB Lyondellbasell Indu Class A New 0.78% +0.78
NTRA Natera Inc. Add +44.3% 3.79% +0.67
VG Venture Global Inc. Class A New 0.67% +0.67
MEOH Methanex Corp. New 0.58% +0.58
CF CF Industries Holdings Inc. New 0.53% +0.53
ONTO Onto Innovation Inc. New 0.46% +0.46
TMDX Transmedics Group Inc. Add +44.8% 2.38% +0.30
JHX James Hardie Ind PLC Add +31.9% 1.64% +0.23
U Unity Software Inc. Add +102.5% 4.27% −0.13

Options Activity Q4 2025 → Q1 2026
SPY SS SPDR S&P 500 ETF Trust-US put New 19,200 $12.5M

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 31$227.2MSXT, CSTM, NTRA, SNOW, LNG
Q1 2026 33$177.3MCSTM, REZI, STM, SXT, TECK
Q4 2025 23$171.2MCSTM, REZI, SXT, GPOR, TECK
Q3 2025 28$202.7MREZI, CSTM, LNG, SXT, TECK
Q2 2025 29$170.9MREZI, LNG, SXT, STX, SABR
Q1 2025 21$146.3MREZI, CCOI, LNG, SABR, QDEL
Q4 2024 28$250.1MDMRC, CCOI, QDEL, REZI, LNG
Q3 2024 27$243.0MREZI, CCOI, DMRC, QDEL, SABR
Q2 2024 29$197.3MDMRC, CSTM, LNG, CCOI, REZI
Q1 2024 26$222.9MCSTM, CCOI, DMRC, GM, REZI