BEACONLIGHT CAPITAL, LLC

Portfolio Overview

BEACONLIGHT CAPITAL, LLC disclosed 34 positions worth $189.8M in its Form 13F-HR for Q1 2026 — $177.3M in common stock plus $12.5M of put/call option positions (reported at underlying notional value, not premium at risk), led by $CSTM (CONSTELLIUM SE) at 16.2% of the equity portfolio, followed by $REZI and $STM. During the quarter the fund opened 16 new positions and exited 5 — including a new stake in $STM and a full exit from $CRS. The portfolio is most concentrated in Materials (32.7% of disclosed assets). All figures are sourced directly from BEACONLIGHT CAPITAL, LLC’s Form 13F-HR filing with the SEC under CIK 1569537.

• 

  CONSTELLIUM SE

  $CSTM

  69.7#353

  Quality

  $28.8M1,171,812 sh
• 

  RESIDEO TECHNOLOGIES, INC.

  $REZI

  40.1#1,947

  Quality

  $20.0M594,234 sh
• 

  STMicroelectronics N.V.

  $STM

  —

  Quality

  $13.3M384,477 sh
• 

  SPDR S&P 500 ETF TRUST

  $SPY PUT

  —

  Quality

  $12.5M19,200 sh
• 

  SENSIENT TECHNOLOGIES CORP

  $SXT

  57.3

  Quality

  $10.7M124,182 sh
• 

  TECK RESOURCES LTD

  $TECK

  —

  Quality

  $9.5M183,299 sh
• 

  Cheniere Energy, Inc.

  $LNG

  48.4

  Quality

  $8.5M29,799 sh
• 

  Unity Software Inc.

  $U

  35.1

  Quality

  $7.6M345,309 sh
• 

  GULFPORT ENERGY CORP

  $GPOR

  64.3

  Quality

  $7.2M33,981 sh
• 

  Natera, Inc.

  $NTRA

  46.4

  Quality

  $6.7M33,589 sh

Company	Quality	Value	Shares
CONSTELLIUM SE$CSTM	69.7#353	$28.8M	1,171,812
RESIDEO TECHNOLOGIES, INC.$REZI	40.1#1,947	$20.0M	594,234
STMicroelectronics N.V.$STM	—	$13.3M	384,477
SPDR S&P 500 ETF TRUST$SPYPUT	—	$12.5M	19,200
SENSIENT TECHNOLOGIES CORP$SXT	57.3	$10.7M	124,182
TECK RESOURCES LTD$TECK	—	$9.5M	183,299
Cheniere Energy, Inc.$LNG	48.4	$8.5M	29,799
Unity Software Inc.$U	35.1	$7.6M	345,309
GULFPORT ENERGY CORP$GPOR	64.3	$7.2M	33,981
Natera, Inc.$NTRA	46.4	$6.7M	33,589

Showing top 10 of 34 holdings.

Full Holdings — BEACONLIGHT CAPITAL, LLC (Q1 2026)

All 34 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#	Ticker	Company	Value	Weight	QoQ	Quality
1	$CSTM	CONSTELLIUM SE	$28.8M	16.2%	-13%	69.7
2	$REZI	RESIDEO TECHNOLOGIES, INC.	$20.0M	11.3%	-14%	40.1
3	$STM	STMicroelectronics N.V.	$13.3M	7.5%	NEW	—
4	$SPYPUT	SPDR S&P 500 ETF TRUST	$12.5M	—	NEW	—
5	$SXT	SENSIENT TECHNOLOGIES CORP	$10.7M	6.0%	-10%	57.3
6	$TECK	TECK RESOURCES LTD	$9.5M	5.3%	-4%	—
7	$LNG	Cheniere Energy, Inc.	$8.5M	4.8%	-17%	48.4
8	$U	Unity Software Inc.	$7.6M	4.3%	+103%	35.1
9	$GPOR	GULFPORT ENERGY CORP	$7.2M	4.0%	-27%	64.3
10	$NTRA	Natera, Inc.	$6.7M	3.8%	+44%	46.4
11	$CELH	Celsius Holdings, Inc.	$5.5M	3.1%	NEW	63
12	$FDX	FEDEX CORP	$5.4M	3.0%	NEW	60.3
13	$TNDM	TANDEM DIABETES CARE INC	$4.9M	2.7%	NEW	34.8
14	$SGI	SOMNIGROUP INTERNATIONAL INC.	$4.4M	2.5%	-37%	64.6
15	$TMDX	TransMedics Group, Inc.	$4.2M	2.4%	+45%	70.1
16	$EQT	EQT Corp	$4.0M	2.3%	-32%	83.3
17	$SOLS	Solstice Advanced Materials Inc.	$3.5M	2.0%	NEW	—
18	$NOW	ServiceNow, Inc.	$3.0M	1.7%	NEW	76
19	$JHX	James Hardie Industries plc	$2.9M	1.6%	+32%	—
20	$SNOW	Snowflake Inc.	$2.8M	1.6%	-34%	49.6
21	$CE	Celanese Corp	$2.7M	1.5%	NEW	38.3
22	$AVGO	Broadcom Inc.	$2.6M	1.5%	NEW	86.4
23	$QDEL	QuidelOrtho Corp	$2.5M	1.4%	-36%	26.4
24	$VICR	VICOR CORP	$2.2M	1.2%	-54%	63.6
25	$RIG	Transocean Ltd.	$2.2M	1.2%	NEW	—
26	$DMRC	Digimarc CORP	$2.1M	1.2%	+0%	14.1
27	$SNDK	Sandisk Corp	$1.9M	1.1%	-91%	88.8
28	$CP	CANADIAN PACIFIC KANSAS CITY LTD/CN	$1.6M	0.9%	NEW	—
29	$LYB	LyondellBasell Industries N.V.	$1.4M	0.8%	NEW	—
30	$GDS	GDS Holdings Ltd	$1.3M	0.7%	-76%	—
31	$VG	Venture Global, Inc.	$1.2M	0.7%	NEW	69
32	$MEOH	METHANEX CORP	$1.0M	0.6%	NEW	—
33	$CF	CF Industries Holdings, Inc.	$934,199	0.5%	NEW	76.8
34	$ONTO	ONTO INNOVATION INC.	$808,181	0.5%	NEW	66.5