BRIGHTLINE CAPITAL MANAGEMENT, LLC — 13F Holdings & Portfolio
CIK 1432450 · latest 13F-HR filed 2026-08-14
BRIGHTLINE CAPITAL MANAGEMENT, LLC manages $461.5M in 13F-reported U.S. long-equity assets across 11 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are VSAT (41.10%), CSTM (13.28%), RRX (8.41%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 5 new positions, exited 3, added to 4, and trimmed 1.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 2580
MIAMI, FL 33131
$461.5M
Long-equity book
11
Distinct positions
2026-06-30
Filed 2026-08-14
+5 / −3 / ↑4 / ↓1
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- VIASAT INC$93.5M +97.2%
- CONSTELLIUM SE$15.9M +35.0%
- REGAL REXNORD CORPORATION$15.4M +65.9%
- FLUOR CORP$9.8M +35.1%
New Positions
- HERC HLDGS INC$20.4M
- TREKOR METALS LTD$15.1M
- OWENS CORNING NEW$12.7M
- WILLSCOT HLDGS CORP$9.9M
- ALGOMA STL GROUP INC$6.7M
Exited Positions
- AMENTUM HOLDINGS INC$36.4M
- KAISER ALUMINUM CORP$21.1M
- TASEKO MINES LTD$12.9M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | VIASAT INC | VSAT | 92552V100 | $189.7M | 41.10% | 2,112,000 | SH |
| 2 | CONSTELLIUM SE | CSTM | F21107101 | $61.3M | 13.28% | 1,923,000 | SH |
| 3 | REGAL REXNORD CORPORATION | RRX | 758750103 | $38.8M | 8.41% | 163,000 | SH |
| 4 | FLUOR CORP | FLR | 343412102 | $37.9M | 8.21% | 723,000 | SH |
| 5 | ECOVYST INC | ECVT | 27923Q109 | $37.5M | 8.13% | 3,012,000 | SH |
| 6 | DANA INC | DAN | 235825205 | $31.6M | 6.84% | 1,160,000 | SH |
| 7 | HERC HLDGS INC | HRI | 42704L104 | $20.4M | 4.41% | 142,000 | SH |
| 8 | TREKOR METALS LTD | TGB | 89472Y107 | $15.1M | 3.28% | 2,200,000 | SH |
| 9 | OWENS CORNING NEW | OC | 690742101 | $12.7M | 2.76% | 80,000 | SH |
| 10 | WILLSCOT HLDGS CORP | WSC | 971378104 | $9.9M | 2.14% | 342,000 | SH |
| 11 | ALGOMA STL GROUP INC | ASTL | 015658107 | $6.7M | 1.46% | 1,660,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $461.5M | 11 | 0000919574-26-005369 |
| 2026-03-31 | 2026-05-15 | $338.1M | 9 | 0000919574-26-003269 |
| 2025-12-31 | 2026-02-13 | $247.4M | 8 | 0000919574-26-000890 |
| 2025-09-30 | 2025-11-13 | $244.0M | 10 | 0000919574-25-006647 |