Brightline Capital Management, LLC 13F holdings, Q4 2025
Holdings as of December 31, 2025 · filings on SEC EDGAR · latest filing →
Brightline Capital Management, LLC disclosed 8 US equity positions worth $247.4m in its Q4 2025 13F filing. The largest position was VSAT at 29.2% of the reported book, followed by AMTM and CSTM. Against the Q3 2025 filing, it opened 2 new positions, added to 5 and reduced 1 among the top 8 holdings.
What did Brightline Capital Management, LLC own in Q4 2025? Top 8 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q3 2025 |
|---|---|---|---|---|---|---|---|
| 1 | VSAT VIASAT INC | Technology | 29.2% | $72.2m | 2,094,000 | 3% | added |
| 2 | AMTM AMENTUM HOLDINGS INC | Industrials | 16.3% | $40.4m | 1,392,000 | 16% | added |
| 3 | CSTM CONSTELLIUM SE | Basic Materials | 14.0% | $34.7m | 1,842,000 | 13% | added |
| 4 | DAN DANA INC | Consumer Cyclical | 11.0% | $27.2m | 1,146,000 | 6% | added |
| 5 | FLR FLUOR CORP NEW | Industrials | 9.0% | $22.2m | 559,000 | 3% | added |
| 6 | ECVT ECOVYST INC | Basic Materials | 8.1% | $19.9m | 2,050,000 | – | new |
| 7 | KALU KAISER ALUMINUM CORP | Basic Materials | 7.8% | $19.3m | 168,000 | – | new |
| 8 | SEI SOLARIS ENERGY INFRAS INC | Energy | 4.6% | $11.5m | 250,000 | -75% | reduced |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.