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BCM

Brightline Capital Management Portfolio holdings

AUM $462M
1-Year Est. Return 226.03%
This Fund
S&P 500
This Quarter Est. Return
+19.25%
1 Year Est. Return
+226.03%
3 Year Est. Return
+810.36%
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$247M
AUM Growth
+$3.37M
Cap. Flow
-$36.7M
Cap. Flow %
-14.85%
Top 10 Hldgs %
100%
Holding
12
New
2
Increased
5
Reduced
1
Closed
4

Top Buys

Rank Stock Value
1
ECVT icon
Ecovyst
ECVT
+$17.9M
2
KALU icon
Kaiser Aluminum
KALU
+$16M
3
AMTM
Amentum Holdings
AMTM
+$4.91M
4
CSTM icon
Constellium
CSTM
+$3.6M
5
VSAT icon
Viasat
VSAT
+$2.05M

Top Sells

Rank Stock Value
1
SEI
Solaris Energy Infrastructure
SEI
+$36.4M
2
EOSE icon
Eos Energy Enterprises
EOSE
+$20M
3
NVRI icon
Enviri
NVRI
+$17.8M
4
MAGN
Magnera Corp
MAGN
+$6.56M
5
TSE
Trinseo
TSE
+$2.49M

Sector Composition

Rank Sector Weight
1 Materials 29.9%
2 Technology 29.17%
3 Industrials 25.27%
4 Consumer Discretionary 11.01%
5 Energy 4.65%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
VSAT icon
1
Viasat
VSAT
$10.7B
$72.2M 29.17%
2,094,000
+58,000
+3% +$2.05M
AMTM
2
Amentum Holdings
AMTM
$4.92B
$40.4M 16.32%
1,392,000
+192,000
+16% +$4.91M
CSTM icon
3
Constellium
CSTM
$3.72B
$34.7M 14.04%
1,842,000
+217,000
+13% +$3.6M
DAN icon
4
Dana Inc
DAN
$3.37B
$27.2M 11.01%
1,146,000
+66,000
+6% +$1.4M
FLR icon
5
Fluor
FLR
$7.57B
$22.2M 8.96%
559,000
+15,000
+3% +$664K
ECVT icon
6
Ecovyst
ECVT
$1.11B
$19.9M 8.06%
+2,050,000
New +$17.9M
KALU icon
7
Kaiser Aluminum
KALU
$2.74B
$19.3M 7.8%
+168,000
New +$16M
SEI
8
Solaris Energy Infrastructure
SEI
$4.21B
$11.5M 4.65%
250,000
-753,000
-75% -$36.4M
EOSE icon
9
Eos Energy Enterprises
EOSE
$1.57B
– –
-1,754,000
Closed -$20M
NVRI icon
10
Enviri
NVRI
$657M
– –
-1,400,000
Closed -$17.8M
TSE
11
DELISTED
Trinseo
TSE
– –
-1,060,000
Closed -$2.49M
MAGN
12
Magnera Corp
MAGN
$425M
– –
-560,000
Closed -$6.56M

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MAG
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HIP
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PC
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MW
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PAA
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FCG
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IAG
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Brightline Capital Management's Q4 2025 Portfolio in Review

As of Q4 2025, Brightline Capital Management held 12 positions worth $247M, up 1.4% from $244M the previous quarter. Its ten largest holdings account for 100% of the portfolio.

Brightline Capital Management withdrew a net $36.7M in Q4 2025, closing 4 positions and reducing 1 holding. Its most notable exit was Eos Energy Enterprises, an estimated $20M position sold in full.

By sector, the portfolio is most concentrated in Materials at 30% of assets, up from 11% a quarter earlier, followed by Technology and Industrials.

Against the trend, Brightline Capital Management opened a new position in Ecovyst worth $19.9M.

  • Brightline Capital Management's largest Q4 2025 buy was Ecovyst: 2,050,000 shares worth $19.9M.
  • Brightline Capital Management added most to Amentum Holdings in Q4 2025, an estimated $4.91M increase.
  • Brightline Capital Management's biggest Q4 2025 reduction was Solaris Energy Infrastructure, cutting an estimated $36.4M.
  • Brightline Capital Management fully exited Eos Energy Enterprises in Q4 2025, selling an estimated $20M.
  • Brightline Capital Management's ten largest holdings make up 100% of its $247M portfolio in Q4 2025.
  • Brightline Capital Management opened 2 new positions and closed 4 in Q4 2025.
  • Brightline Capital Management's portfolio value rose 1.4% quarter-over-quarter to $247M.

Based on Brightline Capital Management's 13F filing for Q4 2025, filed 13 Feb 2026.