SEC 13F Intelligence

Managers / Q3 2025 · view latest →

BRIGHTLINE CAPITAL MANAGEMENT, LLC

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

Reported Value
$244M
Q3 2025
Positions
10
Filings on Record
30
2019–present window
Filed
Nov 13, 2025
original filing

Summary

Brightline Capital Management, LLC reported $244M in U.S.-listed holdings across 10 positions for Q3 2025.

The portfolio is heavily concentrated: VSAT alone accounts for 24.4% of reported value.

Compared with Q2 2025, the fund opened 1 new position and exited 6.

Portfolio Metrics

Turnover
+34.2%
vs prior filed quarter
Top-10 Concentration
+100.0%
share of reported value
Largest Position
+24.4%
Viasat
New / Exited
1 / 6
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, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. 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: 99.0%Other: 1.0%
  • Common Stock · 99.0% · $242M
  • Other · 1.0% · $2M

Quarter-over-Quarter Changes full breakdown →

vs Q2 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
DANDANA INCNEW+1.08M1.08M+$22M$22M
TPCTUTOR PERINI CORPSOLD OUT705.0K0$33M$0
TOLTOLL BROTHERS INCSOLD OUT160.0K0$18M$0
NEXTNEXTDECADE CORPSOLD OUT1.45M0$13M$0
TTITETRA TECHNOLOGIES INC DELSOLD OUT2.65M0$9M$0
TPI COMPOSITES INCSOLD OUT1.74M0$1M$0
BWBABCOCK & WILCOX ENTERPRISESSOLD OUT1.55M0$1M$0
CSTMCONSTELLIUM SEADDED+625.0K1.63M+$11M$24M

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

Holdings — Q3 2025

10 positions
#IssuerClass% PortfolioValueShares
1VSATVIASAT INChistory →COM24.45%$60M2.04M
2SEISOLARIS ENERGY INFRAS INChistory →COM CL A16.43%$40M1.00M
3AMTMAMENTUM HOLDINGS INChistory →COM11.78%$29M1.20M
4CSTMCONSTELLIUM SEhistory →CL A SHS9.91%$24M1.63M
5FLRFLUOR CORP NEWhistory →COM9.38%$23M544.0K
6DANDANA INChistory →COM8.87%$22M1.08M
7EOSEEOS ENERGY ENTERPRISES INChistory →COM CL A8.19%$20M1.75M
8NVRIENVIRI CORPhistory →COM7.28%$18M1.40M
9MAGNMAGNERA CORPhistory →COM SHS2.69%$7M560.0K
10TRINSEO PLCSHS1.02%$2M1.06M

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 ↗.