13F HOLDINGS REPORT
MASON CAPITAL MANAGEMENT LLC
Quarter ended Q3 2025 · Filed November 14, 2025 · Accession 0001104659-25-111862
Total Value
$491.4M
Positions
6
Other Managers
0
Confidential Omitted
No
Holdings (6)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | ATS CORPORATION | ATS | 15,563,568 | $407.8M | 82.99% |
| 2 | KENVUE INC | KVUE | 2,595,000 | $42.1M | 8.57% |
| 3 | BROOKDALE SENIOR LIVING INC | 112463104 | 2,475,964 | $21.0M | 4.27% |
| 4 | CLEAR CHANNEL OUTDOOR HLDGS | CCO | 9,828,401 | $15.5M | 3.16% |
| 5 | MESA LABORATORIES INC | 59064R109 | 70,300 | $4.7M | 0.96% |
| 6 | SIGNATURE BANK | 82669G104 | 400,000 | $260,000 | 0.05% |