Institutional Manager · CIK 0001277742
MHR FUND MANAGEMENT LLC
NEW YORK, NY · File #028-10786
Latest AUM
$1.16B
Positions
10
Top-10 Concentration
100.0%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | HAFNIA LTD | HAFN | +1,309,938 | +$7.0M | -$11.3M |
| ADD | OPTIMUM COMMUNICATIONS INC | OPTU | +903,000 | +$1.5M | -$127,528 |
| REDUCE | APOLLO GLOBAL MGMT INC | 03769M106 | 0 | $0 | +$4.6M |
| REDUCE | DYNAVAX TECHNOLOGIES CORP | 268158201 | 0 | $0 | +$242,520 |
| REDUCE | GRIFFON CORP | GFF | 0 | $0 | -$312,500 |
| REDUCE | IOVANCE BIOTHERAPEUTICS INC | IOVA | 0 | $0 | +$16.2M |
| REDUCE | LIONSGATE STUDIOS CORP | LION | 0 | $0 | +$84.0M |
| REDUCE | PATRIA INVESTMENTS LIMITED | PAX | 0 | $0 | +$1.0M |
| REDUCE | STARZ ENTERTAINMENT CORP. | 855919106 | 0 | $0 | -$8.7M |
| REDUCE | TELESAT CORP | TSAT | 0 | $0 | +$46.9M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202510 pos · $1.16B
- 13F HOLDINGS REPORTQ/E Sep 202510 pos · $1.02B
- 13F HOLDINGS REPORTQ/E Jun 20259 pos · $901.6M
- 13F HOLDINGS REPORTQ/E Mar 20259 pos · $832.0M
- 13F HOLDINGS REPORTQ/E Dec 20249 pos · $904.4M
- 13F HOLDINGS REPORTQ/E Sep 20249 pos · $917.0M
- 13F HOLDINGS REPORTQ/E Jun 20249 pos · $820.6M
- 13F HOLDINGS REPORTQ/E Mar 202410 pos · $1.03B
- 13F HOLDINGS REPORTQ/E Dec 202310 pos · $815.7M
Top 10 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | TELESAT CORP | TSAT | 18,035,092 | $524.8M | 45.17% |
| 2 | LIONSGATE STUDIOS CORP | LION | 37,648,498 | $343.7M | 29.58% |
| 3 | HAFNIA LTD | HAFN | 18,496,652 | $98.6M | 8.48% |
| 4 | IOVANCE BIOTHERAPEUTICS INC | IOVA | 28,967,103 | $79.1M | 6.81% |
| 5 | APOLLO GLOBAL MGMT INC | 03769M106 | 399,505 | $57.8M | 4.98% |
| 6 | STARZ ENTERTAINMENT CORP. | 855919106 | 2,863,232 | $33.5M | 2.88% |
| 7 | PATRIA INVESTMENTS LIMITED | PAX | 800,000 | $12.7M | 1.09% |
| 8 | GRIFFON CORP | GFF | 125,000 | $9.2M | 0.79% |
| 9 | OPTIMUM COMMUNICATIONS INC | OPTU | 1,070,800 | $1.8M | 0.15% |
| 10 | DYNAVAX TECHNOLOGIES CORP | 268158201 | 44,499 | $684,395 | 0.06% |