Brightline Capital Management, LLC reported 10 positions worth $446.39M for the quarter ended Jun 30, 2026, up 32.0% on the prior quarter. It opened 4 new positions, added to 6, trimmed 0 and exited 3. Its largest holding is Viasat Inc at 42.5% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| HRI Herc Holdings Inc | +142.0K | – | $20.35M | 4.56% |
| OC Owens Corning | +80.0K | – | $12.72M | 2.85% |
| WSC WillScot Holdings Corp | +342.0K | – | $9.87M | 2.21% |
| RRX Regal Rexnord Corp | +38.0K | +30.4% | $9.05M | 8.7% |
| ASTL Algoma Steel Group Inc. | +1.66M | – | $6.72M | 1.51% |
| FLR Fluor Corp | +122.0K | +20.3% | $6.39M | 8.49% |
| ECVT Ecovyst Inc. | +212.0K | +7.6% | $2.64M | 8.4% |
| CSTM Constellium Se | +76.0K | +4.1% | $2.42M | 13.73% |
| VSAT Viasat Inc | +12.0K | +0.6% | $1.08M | 42.49% |
| DAN DANA Inc | +10.0K | +0.9% | $272.10K | 7.07% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | VSAT Viasat Inc | Communication Services | 2.11M | $189.68M | 42.49% | +12.0K | +0.6% | Added | 1.53% |
| 2 | CSTM Constellium Se | Industrials | 1.92M | $61.29M | 13.73% | +76.0K | +4.1% | Added | 1.42% |
| 3 | RRX Regal Rexnord Corp | Industrials | 163.0K | $38.82M | 8.7% | +38.0K | +30.4% | Added | 0.24% |
| 4 | FLR Fluor Corp | Industrials | 723.0K | $37.88M | 8.49% | +122.0K | +20.3% | Added | 0.52% |
| 5 | ECVT Ecovyst Inc. | Basic Materials | 3.01M | $37.50M | 8.4% | +212.0K | +7.6% | Added | 2.75% |
| 6 | DAN DANA Inc | Industrials | 1.16M | $31.56M | 7.07% | +10.0K | +0.9% | Added | 1.07% |
| 7 | HRI Herc Holdings Inc | Industrials | 142.0K | $20.35M | 4.56% | +142.0K | – | New | 0.43% |
| 8 | OC Owens Corning | Industrials | 80.0K | $12.72M | 2.85% | +80.0K | – | New | 0.1% |
| 9 | WSC WillScot Holdings Corp | Industrials | 342.0K | $9.87M | 2.21% | +342.0K | – | New | 0.19% |
| 10 | ASTL Algoma Steel Group Inc. | Basic Materials | 1.66M | $6.72M | 1.51% | +1.66M | – | New | 1.53% |
Tip. Select a row to see that position’s full history at Brightline Capital Management.
As of its Q2 2026 13F filing, Brightline Capital Management, LLC’s five largest positions were Viasat Inc (VSAT) at 42.5%, Constellium Se (CSTM) at 13.7%, Regal Rexnord Corp (RRX) at 8.7%, Fluor Corp (FLR) at 8.5%, Ecovyst Inc. (ECVT) at 8.4% of the reported portfolio.
Brightline Capital Management, LLC reported a 13F portfolio worth $446.39M across 10 positions for Q2 2026. That is up 32.0% from the previous quarter.
Its largest purchases by value were Herc Holdings Inc ($20.35M), Owens Corning ($12.72M), WillScot Holdings Corp ($9.87M). It opened 4 new positions.
Its largest sales by value were Amentum Holdings, Inc. ($36.41M), Kaiser Aluminum Corp ($21.09M), Trekor Metals Ltd ($12.91M). It exited 3 positions entirely.
From the Form 13F-HR reports Brightline Capital Management, LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.