SEC 13F Intelligence

Managers / Q1 2026

BRIGHTLINE CAPITAL MANAGEMENT, LLC

CIK 0001432450 · 2 S. BISCAYNE BOULEVARD, SUITE 2580, MIAMI, FL, 33131 · 305-423-0834

Reported Value
$338M
Q1 2026
Positions
9
Filings on Record
30
2019–present window
Filed
May 15, 2026
original filing

Summary

Brightline Capital Management, LLC reported $338M in U.S.-listed holdings across 9 positions for Q1 2026.

The portfolio is heavily concentrated: VSAT alone accounts for 28.4% of reported value.

Compared with Q4 2025, the fund opened 2 new positions and exited 1.

Portfolio Metrics

Turnover
+5.3%
vs prior filed quarter
Largest Position
+28.4%
Viasat
New / Exited
2 / 1
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $18MQ4 ’18Q1 ’19: $63MQ2 ’19: $95MQ1 ’20: $0Q2 ’20: $26.4BQ2 ’20Q4 ’20: $132MQ1 ’21: $148MQ2 ’21: $149MQ3 ’21: $140MQ3 ’21Q4 ’21: $163MQ1 ’22: $143MQ2 ’22: $43MQ3 ’22: $50MQ3 ’22Q4 ’22: $45MQ1 ’23: $0Q2 ’23: $9MQ3 ’23: $24MQ3 ’23Q4 ’23: $92MQ1 ’24: $166MQ2 ’24: $201MQ3 ’24: $237MQ3 ’24Q4 ’24: $146MQ1 ’25: $115MQ2 ’25: $232MQ3 ’25: $244MQ3 ’25Q4 ’25: $247MQ1 ’26: $338Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 86.6%Other: 13.4%
  • Common Stock · 86.6% · $293M
  • Other · 13.4% · $45M

Quarter-over-Quarter Changes full breakdown →

vs Q4 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
RRXREGAL REXNORD CORPORATIONNEW+125.0K125.0K+$23M$23M
TKOEURTASEKO MINES LTDNEW+2.00M2.00M+$13M$13M
SEISOLARIS ENERGY INFRAS INCSOLD OUT250.0K0$11M$0
ECVTECOVYST INCADDED+750.0K2.80M+$16M$36M
FLRFLUOR CORP NEWADDED+42.0K601.0K+$6M$28M
KALUKAISER ALUMINUM CORPHELD+7.0K175.0K+$2M$21M
4DHDANA INCHELD+4.0K1.15M+$11M$39M
VSATVIASAT INCHELD+6.0K2.10M+$24M$96M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q1 2026

9 positions
#IssuerClass% PortfolioValueShares
1VSATVIASAT INChistory →COM28.44%$96M2.10M
2CONSTELLIUM SECL A SHS13.43%$45M1.85M
34DHDANA INChistory →COM11.44%$39M1.15M
4AMTMAMENTUM HOLDINGS INChistory →COM10.77%$36M1.40M
5ECVTECOVYST INChistory →COM10.65%$36M2.80M
6FLRFLUOR CORP NEWhistory →COM8.29%$28M601.0K
7RRXREGAL REXNORD CORPORATIONhistory →COM6.92%$23M125.0K
8KALUKAISER ALUMINUM CORPhistory →COM PAR $0.016.24%$21M175.0K
9TKOEURTASEKO MINES LTDhistory →COM3.82%$13M2.00M

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$338M9May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$247M8Feb 13, 202613F-HRchanges · EDGAR ↗
Q3 2025$244M10Nov 13, 202513F-HRchanges · EDGAR ↗
Q2 2025$232M15Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$115M12May 14, 202513F-HRchanges · EDGAR ↗
Q4 2024$146M13Feb 13, 202513F-HRchanges · EDGAR ↗
Q3 2024$237M20Nov 13, 202413F-HRchanges · EDGAR ↗
Q2 2024$201M19Aug 13, 202413F-HRchanges · EDGAR ↗
Q1 2024$166M15May 14, 202413F-HRchanges · EDGAR ↗
Q4 2023$92M10Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$24M4Oct 31, 202313F-HRchanges · EDGAR ↗
Q2 2023$9M1Aug 11, 202313F-HRchanges · EDGAR ↗
Q1 2023$01May 5, 202313F-HRchanges · EDGAR ↗
Q4 2022$45M5Feb 3, 202313F-HRchanges · EDGAR ↗
Q3 2022$50M5Nov 9, 202213F-HRchanges · EDGAR ↗
Q2 2022$43M4Aug 3, 202213F-HRchanges · EDGAR ↗
Q1 2022$143M9May 12, 202213F-HRchanges · EDGAR ↗
Q4 2021$163M13Feb 7, 202213F-HRchanges · EDGAR ↗
Q3 2021$140M12Nov 8, 202113F-HRchanges · EDGAR ↗
Q2 2021$149M11Aug 9, 202113F-HRchanges · EDGAR ↗
Q1 2021$148M13May 12, 202113F-HRchanges · EDGAR ↗
Q4 2020$132M15Feb 9, 202113F-HRchanges · EDGAR ↗
Q3 2020Under review11Nov 10, 202013F-HRchanges · EDGAR ↗
Q2 2020$26.4B6Aug 4, 202013F-HRchanges · EDGAR ↗
Q1 2020$01May 5, 202013F-HRchanges · EDGAR ↗
Q4 2019Under review10Feb 6, 202013F-HRchanges · EDGAR ↗
Q3 2019Under review13Nov 12, 201913F-HRchanges · EDGAR ↗
Q2 2019$95M11Aug 12, 201913F-HRchanges · EDGAR ↗
Q1 2019$63M11May 9, 201913F-HRchanges · EDGAR ↗
Q4 2018$18M2Feb 8, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.