Stocks/Funds/CIK 1569537

BEACONLIGHT CAPITAL, LLC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1569537
Assets
$177M
+21.2% YoY
Holdings
33
Lifetime alpha vs market
+0.83% annual
Average hold time
1.8 yr
median 1.0 yr

Quarterly history

Cum return +57% vs S&P +52% · α +5% lifetimeAUM $177M · peak $376MFlow $-11M (-6%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-17.01%
trims when stocks drop
when a holding falls −10%+
Middle response
-9.85%
baseline attrition
Rally response
-6.12%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
CSTMConstellium SE$29M16.2%+143.6%6.5 yr
REZIResideo Technologies, In$20M11.3%+90.5%6.3 yr
STMSTMicroelectronics N.V.$13M7.5%+58.7%0.5 yr
SXTSensient Technologies Co$11M6.1%+18.1%1.0 yr
TECKTeck Resources Limited$9M5.3%+43.3%2.3 yr
LNGCheniere Energy, Inc.$8M4.8%+23.8%7.0 yr
UUnity Software Inc.$8M4.3%+12.0%1.3 yr
GPORGulfport Energy Corporat$7M4.1%+14.9%3.5 yr
NTRANatera, Inc.$7M3.8%+41.4%3.8 yr
CELHCelsius Holdings, Inc.$6M3.1%-0.4%0.3 yr
FDXFedEx Corporation$5M3.1%+49.3%2.3 yr
TNDMTandem Diabetes Care, In$5M2.7%+0.1%2.0 yr
SGISomnigroup International$4M2.5%+24.4%1.5 yr
TMDXTransMedics Group, Inc.$4M2.4%+47.8%1.0 yr
EQTEQT Corporation$4M2.3%+20.5%3.3 yr

Portfolio composition (YoY)

Industry mix
Aluminum16.2%+9.6pp$29M
Security & Protection Services11.3%-5.9pp$20M
Semiconductors9.4%$17M
Chemicals - Specialty8.0%$14M
Software - Application7.5%+5.8pp$13M
Oil & Gas Exploration & Production6.3%-2.7pp$11M
Industrial Materials5.3%+2.8pp$9M
Medical - Devices5.1%+2.2pp$9M
Oil & Gas Midstream4.8%-6.0pp$8M
Medical - Diagnostics & Research3.8%+1.5pp$7M
Country
US65.2%-25.6pp
FR16.2%+9.6pp
NL7.5%
CA5.9%+3.4pp
Unknown3.2%
CH1.2%
CN0.7%
Top 5: 46.4% · Top 10: 66.5% · Top 25: 94.3%

Winners

TickerPrev $PnLYoY %
REZI$19M+0.02B90.5%
CSTM$10M+0.01B143.6%
LNG$16M+0.00B23.8%
EQT$9M+0.00B20.5%
TECK$4M+0.00B43.3%

Losers

TickerPrev $PnLYoY %
QDEL$12M-0.01B-53.0%
DMRC$9M-0.01B-61.7%

Top buys this quarter · 15

CELH Celsius Holdings, Inc.new+$6M
STM STMicroelectronics N.V.+$4M
TNDM Tandem Diabetes Care, Inc.+$4M
U Unity Software Inc.+$4M
SOLS Solstice Advanced Materials Innew+$4M
NOW ServiceNow, Inc.new+$3M
CE Celanese Corporationnew+$3M
AVGO Broadcom Inc.new+$3M
RIG Transocean Ltd.new+$2M
NTRA Natera, Inc.+$2M

Top sells this quarter · 15

SNDK Sandisk Corporation$18M
CRS Carpenter Technology Corporatiexit$10M
TWLO Twilio Inc.exit$6M
STX Seagate Technology Holdings plexit$5M
GDS GDS Holdings Limited$4M
CSTM Constellium SE$25M
CF CF Industries Holdings, Inc.$4M
REZI Resideo Technologies, Inc.$3M
GPOR Gulfport Energy Corporation$3M
SGI Somnigroup International Inc$3M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$177M33+47.08%+17.59%+29.49%-0.01B
2025-12-31$171M23+9.01%+17.72%-8.71%-0.04B
2025-09-30$203M28+8.47%+17.52%-9.05%+0.01B
2025-06-30$171M29-1.10%+14.94%-16.05%+0.01B
2025-03-31$146M21-11.99%+8.30%-20.29%-0.06B
2024-12-31$250M28+15.98%+24.89%-8.90%-0.00B
2024-09-30$243M27+21.48%+36.04%-14.56%+0.04B
2024-06-30$197M29+19.48%+24.49%-5.01%-0.02B
2024-03-31$219M25+35.87%+29.62%+6.25%-0.01B
2023-12-31$209M24+30.63%+26.18%+4.45%-0.00B
2023-09-30$191M26+24.46%+21.57%+2.89%-0.02B
2023-06-30$205M26+23.63%+19.42%+4.20%+0.00B
2023-03-31$183M23-10.56%-7.82%-2.74%+0.01B
2022-12-31$168M30+4.24%+7.56%-3.32%-0.00B
2022-09-30$162M28+2.71%-4.93%+7.63%-0.03B
2022-06-30$183M28-19.08%-16.11%-2.97%+0.03B