Institutions / Mason Capital Management LLC / Activity
Activity — Mason Capital Management LLC
9 moves.
| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Q1 2026 as of | New | ENVIRI Corp Common stock | $88.18M | +4.5M | 4,494,536 14.39% of portfolio | high |
| Q1 2026 as of | Exit | Solstice Advanced Materials Inc. Common stock | $-30.79M | -634K -100.00% | 0 | medium |
| Q1 2026 as of | Add | ATS Corp /ATS Common stock | $23.70M | +841K +5.40% | 16,404,170 75.48% of portfolio | medium |
| Q1 2026 as of | Exit | N4732M103 Common stock | $-18.83M | -1.3M -100.00% | 0 | medium |
| Q1 2026 as of | Trim | Brookdale Senior Living Inc. Common stock | $-18.50M | -1.4M -37.71% | 2,233,741 4.99% of portfolio | medium |
| Q1 2026 as of | Exit | G1466R173 Common stock | $-8.79M | -2.2M -100.00% | 0 | medium |
| Q1 2026 as of | Exit | Mesa Laboratories Inc /Co Common stock | $-5.52M | -70K -100.00% | 0 | medium |
| Q1 2026 as of | New | JELD-WEN Holding, Inc. Common stock | $963.3K | +777K | 776,885 0.16% of portfolio | low |
| Q1 2026 as of | Add | Ready Capital Corporation Common stock | $880.9K | +544K +14.40% | 4,319,933 1.14% of portfolio | low |