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CIK: 0001218735
Total reported value
$607.0M
$607.0M
7 檔
100.8%
In Q1 2026, Mason Capital Management LLC's U.S. equity holdings reached a combined market value of $607.0M, distributed across 7 disclosed stock positions.
In Q1 2026, Mason Capital Management LLC adopted a defensive or profit-taking posture, trimming 1 positions and completely liquidating 4 holdings to manage risk exposure.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | ATS | Ats CORP | Stock-Other | 75.48% | +2.30% | +5.40% | |
| 2 | HA7 | Enviri CORP | Stock-Other | 14.39% | -7.99% | — | |
| 3 | BKD | Brookdale Senior Living Inc | Stock-Other | 4.99% | +1.84% | -37.71% | |
| 4 | CCO | Clear Channel Outdoor Holdin | Stock-Other | 3.80% | +0.12% | — | |
| 5 | RC | Ready Capital CORP | Stock-Other | 1.14% | +0.11% | +14.40% | |
| 6 | JELD | Jeld-wen Holding Inc | Stock-Other | 0.16% | +0.61% | — | |
| 7 | SBNY | Signature Bank | Stock-Financials | 0.04% | -0.01% | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | SBNY | Signature Bank | 0% | — | Unchanged |
| 2 | CCO | Clear Channel Outdoor Holdin | -0.1% | — | Unchanged |
| 3 | RC | Ready Capital CORP | -0.3% | +14.40% | Add |
| 4 | ATS | Ats CORP | -0.8% | +5.40% | Add |
| 5 | BKD | Brookdale Senior Living Inc | -1.9% | -37.71% | Trim |
| 6 | HA7 | Enviri CORP | — | NEW | New buy |
| 7 | SOLS | Solstice Adv Materials Inc | — | EXIT | Sold out |
| 8 | JBS | Jbs N.v. | — | EXIT | Sold out |
| 9 | BORR | Borr Drilling Limited | — | EXIT | Sold out |
| 10 | MLAB | Mesa Laboratories Inc | — | EXIT | Sold out |
| 11 | JELD | Jeld-wen Holding Inc | — | NEW | New buy |
According to official SEC Form 13F filings, Mason Capital Management LLC reported a total U.S. public equity portfolio value of $607.0M across 7 disclosed positions in Q1 2026.
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In terms of portfolio concentration, the top 5 core holdings (including ATS, HA7, BKD) accounted for 100.8% of total reported equity market value during Q1 2026.
Top New Position Initiated
HA7
市值: $88.2M
Top Position Liquidated / Trimmed
SOLS
前期市值: $30.8M
During Q1 2026, Mason Capital Management LLC's top holdings by market value included ATS (75.5%)、HA7 (14.4%)、BKD (5.0%). The largest single position, ATS, represented 75.5% of total portfolio value.
In Q1 2026, Mason Capital Management LLC made 9 total portfolio adjustments, initiating 2 new buys, adding to 2 positions, trimming 1 holdings, and fully liquidating 4 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
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