Mason Capital Management LLC 13F holdings, Q1 2025
Holdings as of March 31, 2025 · filings on SEC EDGAR · latest filing →
Mason Capital Management LLC disclosed 5 US equity positions worth $427.2m in its Q1 2025 13F filing. The largest position was ATS at 90.8% of the reported book, followed by 0VVB and CCO. Against the Q4 2024 filing, it opened 2 new positions, added to 1 and reduced 0 among the top 5 holdings.
What did Mason Capital Management LLC own in Q1 2025? Top 5 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q4 2024 |
|---|---|---|---|---|---|---|---|
| 1 | ATS ATS CORPORATION | 90.8% | $388.0m | 15,563,568 | 4% | added | |
| 2 | 0VVB PARAMOUNT GLOBAL | 5.7% | $24.2m | 2,027,408 | – | new | |
| 3 | CCO CLEAR CHANNEL OUTDOOR HLDGS | Communication Services | 2.6% | $10.9m | 9,828,401 | 0% | held |
| 4 | COHEN CIRCLE ACQUISITION CORP | 0.9% | $3.6m | 325,000 | – | new | |
| 5 | SBNY SIGNATURE BANK | Financial Services | 0.1% | $392.0k | 400,000 | 0% | held |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.