Brightline Capital Management, LLC

Institutional manager·CIK 0001432450
Latest Qtr return
+143.8%
SPY latest qtr
+17.6%
Alpha
+126.2ptsvs SPY
Invested
$338.1M
Holdings
9
Trades YTD
0

Performance · Fund vs SPY

Cumulative return · quarterly snapshots
-25%+0%+85%Brightline +84.0%SPY +72.2%Q1 '25Q2 '25Q3 '25Q4 '25

Coverage 97%. 4 quarters of 2025 measured against SPY adj-close benchmark.

EDITORIAL BRIEF · refreshed Jul 2, 2026

Why follow Brightline Capital Management, LLC right now?

Brightline Capital Management's Q1 2026 13F-HR discloses $338M across 9 positions, with Viasat commanding 28.4% of the portfolio at 2,100,000 shares. The concentration is notable: the top five holdings — Viasat, Constellium, Dana, Amentum, and Ecovyst — account for roughly 75% of reported assets. Ecovyst saw the largest quarter-over-quarter share increase, up 37% to 2,800,000 shares.

The portfolio spans satellite communications, aluminum processing, specialty chemicals, engineered components, and government services. Reported quarterly returns show +143.8% for Q1 2026 against SPY's +17.6%, following +63.7% in Q4 2025 and +33.9% in Q3 2025; Q2 2025 trailed SPY by 4.7 percentage points. Past performance is not indicative of future results.

Generated from public SEC filings. Not investment advice.…

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Top holdings · current snapshot

Source: 13F-HR
01
$VSAT
VIASAT INC
Q4 2025: Increased +0.3% (2.09M → 2.10M shares)
28.4%
+53.2%
~$45.80 Mar 2026
02
$CSTM
CONSTELLIUM SE
Q4 2025: Increased +0.3% (1.84M → 1.85M shares)
13.4%
+12.4%
~$24.58 Mar 2026
03
$DAN
DANA INC
Q4 2025: Increased +0.3% (1.15M → 1.15M shares)
11.4%
-20.3%
~$33.65 Mar 2026
04
$AMTM
AMENTUM HOLDINGS INC
Q4 2025: Increased +0.3% (1.39M → 1.40M shares)
10.8%
-16.4%
~$26.08 Mar 2026
05
$ECVT
ECOVYST INC
Q4 2025: Increased +36.6% (2.05M → 2.80M shares)
10.6%
-6.5%
~$12.86 Mar 2026
06
$FLR
FLUOR CORP NEW
Q4 2025: Increased +7.5% (559.0k → 601.0k shares)
8.3%
+0.4%
~$46.65 Mar 2026
07
$RRX
REGAL REXNORD CORPORATION
Held since at least Q1 2024
6.9%
+0.2%
~$187.26 Mar 2026
08
$KALU
KAISER ALUMINUM CORP
Q4 2025: Increased +4.2% (168.0k → 175.0k shares)
6.2%
+25.7%
~$120.51 Mar 2026
09
$TGB
TASEKO MINES LTD
Held since at least Q1 2024
3.8%
+4.0%
~$6.45 Mar 2026
See all 9 holdings · Pro →

Recent trades · Last 90 days

No Form 4 / 13D / 13G trade events on file in the recent window. 13F filers report position snapshots quarterly rather than per-trade events, so this section is most useful for managers who also file Form 4 or 13D/G.

Convergence · Brightline Capital Management, LLC

Pattern cards reflect public SEC EDGAR and Congressional filing data only. Detection uses filing dates; trade execution dates may differ. Past convergence patterns do not predict future returns. Nothing here is investment advice.

Source data: SEC EDGAR · 13F-HR filings · Performance through 2026-03-31 · Last refreshed 11:04 UTC.