Brightline Capital Management, LLC
Brightline Capital Management, LLC reported 11 US-listed holdings worth $461.5 million in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Viasat Inc. (41.1%), Constellium SE (13.3%) and Regal Rexnord Corp. (8.4%). Against the quarter before, it opened 5 positions, added to 6, trimmed 0 and sold out of 3.
The 11 largest of its 11 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.
What the fund reported holding at each quarter's end; hover a bar for the number of positions
What its reported holdings returned
Held through each quarter, the holdings it reported returned +162.2% over the 7 quarters to 30 June 2026, against +30.2% for the S&P 500.
Not the fund's own return: each 13F's holdings are kept unchanged until the next one, so trades inside a quarter, dividends, cash and fees are left out. A rough guide to how its picks have done over time.
What it did on the quarter
Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held
Opened 5
- Herc Hldgs Inc. HRI$20.4 million
- Trekor Metals Ltd Com TGB$15.1 million
- Owens Corning OC$12.7 million
- WillScot Holdings Corp. WSC$9.9 million
- Algoma STL Group Inc. ASTL$6.7 million
Added to 6
- Regal Rexnord Corp. RRX+38,000 shares · +30%
- Fluor Corp. FLR+122,000 shares · +20%
- Ecovyst Inc. ECVT+212,000 shares · +8%
- Constellium SE CSTM+76,000 shares · +4%
- Viasat Inc. VSAT+12,000 shares · +1%
- Dana Inc. DAN+10,000 shares · +1%
Sold out of 3
- Amentum Holdings, Inc. AMTM$36.4 million last quarter
- Kaiser Aluminum Corp. KALU$21.1 million last quarter
- Taseko Mines Ltd TGB$12.9 million last quarter
What it holds
| Company | Shares | Value | Of its book | Change in shares |
|---|---|---|---|---|
| Viasat Inc. VSAT | 2.1M | $189.7 million | 41.10% | +12.0K |
| Constellium SE CSTM | 1.9M | $61.3 million | 13.28% | +76.0K |
| Regal Rexnord Corp. RRX | 163.0K | $38.8 million | 8.41% | +38.0K |
| Fluor Corp. FLR | 723.0K | $37.9 million | 8.21% | +122.0K |
| Ecovyst Inc. ECVT | 3.0M | $37.5 million | 8.13% | +212.0K |
| Dana Inc. DAN | 1.2M | $31.6 million | 6.84% | +10.0K |
| Herc Hldgs Inc. HRI | 142.0K | $20.4 million | 4.41% | new |
| Trekor Metals Ltd Com TGB | 2.2M | $15.1 million | 3.28% | new |
| Owens Corning OC | 80.0K | $12.7 million | 2.76% | new |
| WillScot Holdings Corp. WSC | 342.0K | $9.9 million | 2.14% | new |
| Algoma STL Group Inc. ASTL | 1.7M | $6.7 million | 1.46% | new |