MHR FUND MANAGEMENT LLC — 13F Holdings & Portfolio
CIK 1277742 · latest 13F-HR filed 2026-05-15
MHR FUND MANAGEMENT LLC manages $1.37B in 13F-reported U.S. long-equity assets across 10 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are TSAT (47.72%), LION (26.39%), HAFN (10.28%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 1 new position, exited 1, added to 5, and trimmed 3.
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.
$1.37B
Long-equity book
10
Distinct positions
2026-03-31
Filed 2026-05-15
+1 / −1 / ↑5 / ↓3
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- TELESAT CORP$128.0M +24.4%
- HAFNIA LTD$42.0M +42.6%
- IOVANCE BIOTHERAPEUTICS INC$22.6M +28.6%
- LIONSGATE STUDIOS CORP$17.3M +5.0%
- GRIFFON CORP$8.2M +89.0%
Top Trims
- APOLLO GLOBAL MGMT INC-$13.3M -23.0%
- PATRIA INVESTMENTS LIMITED-$1.4M -10.8%
- OPTIMUM COMMUNICATIONS INC-$374.8K -21.2%
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 | TELESAT CORP | TSAT | 879512309 | $652.9M | 47.72% | 18,035,092 | SH |
| 2 | LIONSGATE STUDIOS CORP | LION | 53626N102 | $361.0M | 26.39% | 37,648,498 | SH |
| 3 | HAFNIA LTD | HAFN | Y2990R101 | $140.6M | 10.28% | 18,496,652 | SH |
| 4 | IOVANCE BIOTHERAPEUTICS INC | IOVA | 462260100 | $101.7M | 7.43% | 28,967,103 | SH |
| 5 | APOLLO GLOBAL MGMT INC | APO | 03769M106 | $44.5M | 3.25% | 399,505 | SH |
| 6 | STARZ ENTERTAINMENT CORP. | STRZ | 855919106 | $32.9M | 2.41% | 2,863,232 | SH |
| 7 | GRIFFON CORP | GFF | 398433102 | $17.4M | 1.27% | 239,392 | SH |
| 8 | PATRIA INVESTMENTS LIMITED | PAX | G69451105 | $11.3M | 0.83% | 900,000 | SH |
| 9 | TERAWULF INC | WULF | 88080T104 | $4.3M | 0.32% | 300,000 | SH |
| 10 | OPTIMUM COMMUNICATIONS INC | OPTU | 02156K103 | $1.4M | 0.10% | 1,070,800 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $1.37B | 10 | 0001011438-26-000344 |
| 2025-12-31 | 2026-02-17 | $1.16B | 10 | 0001011438-26-000142 |
| 2025-09-30 | 2025-11-14 | $1.02B | 10 | 0001011438-25-000575 |