AI Portfolio Summary
In 2026 Q1, BEACONLIGHT CAPITAL, LLC maintained a portfolio of 39 distinct positions. The most significant new addition to the portfolio was STMICROELECTRONICS N, which now represents 7.00% of the total fund value. Conversely, BEACONLIGHT CAPITAL, LLC completely exited their position in ADVANCE AUTO PARTS I.
Total Positions
39
Quarter
2026 Q1
Top Holding
CSTM (15.2%)
Top 10 Concentration
65.7%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-39 of 39
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
CSTM
CONSTELLIUM SE
|
Basic Materials | 15.18% | 14.75% |
#1
Prev: #1
|
6.5 | -168,122 | -12.5% |
P
S
|
1,171,812 | $28,803,139 |
$9.86
+180.3%
|
2020 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | ||
|
REZI
RESIDEO TECHNOL...
|
Industrials | 10.55% | 14.22% |
#2
Prev: #2
|
6.0 | -99,077 | -14.3% |
P
S
|
594,234 | $20,031,628 |
$17.41
+98.9%
|
2020 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | ||
|
STM
STMICROELECTRON...
|
Technology | 7.00% | — |
#3
Prev: #—
|
7.3 | 384,477 | no change |
NEW
|
384,477 | $13,283,680 |
$30.16
+13.8%
|
2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | ||
|
SPY
PUT
STATE STR SPDR ...
|
PUT Option | 6.58% | — |
#4
Prev: #—
|
6.6 | 19,200 | no change |
NEW
|
19,200 | $12,486,528 | 2013 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SXT
SENSIENT TECHNO...
|
Basic Materials | 5.66% | 7.57% |
#5
2
Prev: #3
|
3.3 | -13,851 | -10.0% |
P
S
|
124,182 | $10,734,292 | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TECK
TECK RESOURCES ...
|
Basic Materials | 5.00% | 5.35% |
#6
1
Prev: #5
|
2.5 | -7,936 | -4.1% |
P
S
|
183,299 | $9,485,723 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
LNG
CHENIERE ENERGY...
|
Energy | 4.46% | 4.07% |
#7
3
Prev: #10
|
2.3 | -6,036 | -16.8% |
P
S
|
29,799 | $8,455,764 | 2016 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
U
UNITY SOFTWARE ...
|
Technology | 3.99% | 4.40% |
#8
1
Prev: #9
|
4.6 | 174,788 | 102.5% |
P
S
|
345,309 | $7,576,079 | 2022 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GPOR
GULFPORT ENERGY...
|
Energy | 3.79% | 5.66% |
#9
5
Prev: #4
|
1.5 | -12,591 | -27.0% |
P
S
|
33,981 | $7,189,360 | 2022 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
NTRA
NATERA INC
|
Healthcare | 3.54% | 3.12% |
#10
4
Prev: #14
|
3.9 | 10,303 | 44.2% |
P
S
|
33,589 | $6,717,464 | 2022 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CELH
CELSIUS HLDGS I...
|
Consumer Defensive | 2.92% | — |
#11
Prev: #—
|
4.7 | 156,391 | no change |
NEW
|
156,391 | $5,548,753 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
FDX
FEDEX CORP
|
Industrials | 2.85% | — |
#12
Prev: #—
|
4.6 | 15,201 | no change |
NEW
|
15,201 | $5,414,292 | 2020 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TNDM
TANDEM DIABETES...
|
Healthcare | 2.56% | — |
#13
Prev: #—
|
4.5 | 253,877 | no change |
NEW
|
253,877 | $4,866,822 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SGI
SOMNIGROUP INTE...
|
Consumer Cyclical | 2.31% | 4.92% |
#14
8
Prev: #6
|
0.9 | -35,158 | -37.3% |
P
S
|
59,199 | $4,375,990 | 2020 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TMDX
TRANSMEDICS GRO...
|
Healthcare | 2.22% | 2.08% |
#15
2
Prev: #17
|
3.4 | 13,134 | 44.8% |
P
S
|
42,478 | $4,222,738 | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
EQT
EQT CORP
|
Energy | 2.10% | 2.91% |
#16
1
Prev: #15
|
0.8 | -30,129 | -32.4% |
P
S
|
62,760 | $3,994,046 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SOLS
SOLSTICE ADVANC...
|
Basic Materials | 1.86% | — |
#17
Prev: #—
|
4.2 | 46,433 | no change |
NEW
|
46,433 | $3,536,337 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
NOW
SERVICENOW INC
|
Technology | 1.58% | — |
#18
Prev: #—
|
4.1 | 28,682 | no change |
NEW
|
28,682 | $2,998,703 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
N/A
JAMES HARDIE IN...
|
—
|
Unknown | 1.54% | 1.41% |
#19
2
Prev: #21
|
3.1 | 37,223 | 31.9% |
P
S
|
153,863 | $2,914,165 | — | 13F Filing | 2026-03-31 | 2026-05-14 | ||
|
SNOW
SNOWFLAKE INC
|
Technology | 1.46% | 3.55% |
#20
7
Prev: #13
|
0.6 | -9,358 | -33.8% |
P
S
|
18,317 | $2,762,570 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CE
CELANESE CORP D...
|
Basic Materials | 1.42% | — |
#21
Prev: #—
|
4.1 | 41,055 | no change |
NEW
|
41,055 | $2,700,187 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
AVGO
BROADCOM INC
|
Technology | 1.39% | — |
#22
Prev: #—
|
4.1 | 8,516 | no change |
NEW
|
8,516 | $2,635,787 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
QDEL
QUIDELORTHO COR...
|
Healthcare | 1.32% | 3.99% |
#23
12
Prev: #11
|
0.5 | -86,992 | -36.4% |
P
S
|
152,057 | $2,498,297 | 2024 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
VICR
VICOR CORP
|
Technology | 1.14% | 1.87% |
#24
5
Prev: #19
|
0.5 | -15,780 | -53.9% |
P
S
|
13,477 | $2,169,797 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
RIG
TRANSOCEAN LTD
|
Energy | 1.14% | — |
#25
Prev: #—
|
4.0 | 326,947 | no change |
NEW
|
326,947 | $2,167,659 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
DMRC
DIGIMARC CORP N...
|
Technology | 1.12% | 1.65% |
#26
6
Prev: #20
|
1.4 | no change | no change |
P
S
|
431,772 | $2,120,001 | 2021 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
SNDK
SANDISK CORP
|
Technology | 0.98% | 4.42% |
#27
19
Prev: #8
|
0.4 | -28,922 | -90.8% |
P
S
|
2,942 | $1,869,170 | 2012 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CP
CANADIAN PACIFI...
|
Industrials | 0.84% | — |
#28
Prev: #—
|
3.8 | 20,314 | no change |
NEW
|
20,314 | $1,597,899 | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
LYB
LYONDELLBASELL ...
|
Basic Materials | 0.73% | — |
#29
Prev: #—
|
3.8 | 17,202 | no change |
NEW
|
17,202 | $1,385,793 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
GDS
GDS HLDGS LTD
|
Technology | 0.68% | 2.77% |
#30
14
Prev: #16
|
0.3 | -104,054 | -76.5% |
P
S
|
31,989 | $1,288,837 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
VG
VENTURE GLOBAL ...
|
Energy | 0.63% | — |
#31
Prev: #—
|
3.8 | 75,636 | no change |
NEW
|
75,636 | $1,192,023 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
MEOH
METHANEX CORP
|
Basic Materials | 0.54% | — |
#32
Prev: #—
|
3.7 | 17,308 | no change |
NEW
|
17,308 | $1,030,518 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CF
CF INDUSTRIES H...
|
Basic Materials | 0.49% | — |
#33
Prev: #—
|
3.7 | 7,195 | no change |
NEW
|
7,195 | $934,199 | 2021 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
ONTO
ONTO INNOVATION...
|
Technology | 0.43% | — |
#34
Prev: #—
|
3.7 | 3,941 | no change |
NEW
|
3,941 | $808,181 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
AAP
ADVANCE AUTO PA...
|
Consumer Cyclical | 0.00% | 0.25% |
Sold All 😨
(Was: #23) |
0.0 | -10,920 | -100.0% |
CLOSED
|
— | $— | 2017 Q3 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
FICO
FAIR ISAAC CORP
|
Technology | 0.00% | 0.50% |
Sold All 😨
(Was: #22) |
0.0 | -502 | -100.0% |
CLOSED
|
— | $— | 2014 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
STX
SEAGATE TECHNOL...
|
Technology | 0.00% | 2.03% |
Sold All 😨
(Was: #18) |
0.0 | -12,651 | -100.0% |
CLOSED
|
— | $— | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
TWLO
TWILIO INC
|
Technology | 0.00% | 3.83% |
Sold All 😨
(Was: #12) |
0.0 | -46,060 | -100.0% |
CLOSED
|
— | $— | 2025 Q1 | 13F Filing | 2026-03-31 | 2026-05-14 | |||
|
CRS
CARPENTER TECHN...
|
Industrials | 0.00% | 4.68% |
Sold All 😨
(Was: #7) |
0.0 | -25,445 | -100.0% |
CLOSED
|
— | $— | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-14 |
Showing 1-39 of 39 holdings