Latest MASON CAPITAL MANAGEMENT LLC Stock Portfolio
About MASON CAPITAL MANAGEMENT LLC and 13F Hedge Fund Stock Holdings
MASON CAPITAL MANAGEMENT LLC is a hedge fund based in New York, NY. On 2026-02-17, the fund reported it's updated stock portfolio. In the 13F Holdings report, MASON CAPITAL MANAGEMENT LLC reported an equity portfolio of $561.6 Millions as of 31 Dec, 2025.
The top stock holdings of MASON CAPITAL MANAGEMENT LLC are , BKD, . The fund has invested 76.3% of it's portfolio in ATS CORPORATION and 6.9% of portfolio in BROOKDALE SENIOR LIVING INC.
The fund managers got completely rid off KENVUE INC stocks. MASON CAPITAL MANAGEMENT LLC opened new stock positions in SOLSTICE ADV MATERIALS INC, BORR DRILLING LTD (BORR) and READY CAPITAL CORP (RC). The fund showed a lot of confidence in some stocks as they added substantially to BROOKDALE SENIOR LIVING INC (BKD).
The top stock holdings of MASON CAPITAL MANAGEMENT LLC are , BKD, . The fund has invested 76.3% of it's portfolio in ATS CORPORATION and 6.9% of portfolio in BROOKDALE SENIOR LIVING INC.
The fund managers got completely rid off KENVUE INC stocks. MASON CAPITAL MANAGEMENT LLC opened new stock positions in SOLSTICE ADV MATERIALS INC, BORR DRILLING LTD (BORR) and READY CAPITAL CORP (RC). The fund showed a lot of confidence in some stocks as they added substantially to BROOKDALE SENIOR LIVING INC (BKD).
MASON CAPITAL MANAGEMENT LLC Annual Return Estimates Vs S&P 500
- Performance
New Buys
| Ticker | $ Bought |
|---|---|
| solstice adv materials inc | 30,790,100 |
| jbs n.v. | 18,832,500 |
| borr drilling ltd | 8,794,010 |
| ready capital corp | 8,231,980 |
New stocks bought by MASON CAPITAL MANAGEMENT LLC
Additions
| Ticker | % Inc. |
|---|---|
| brookdale senior living inc | 44.83 |
Additions to existing portfolio by MASON CAPITAL MANAGEMENT LLC
Reductions
Sold off
| Ticker | $ Sold |
|---|---|
| kenvue inc | -42,116,800 |
MASON CAPITAL MANAGEMENT LLC got rid off the above stocks
Sector Distribution
- Others
- Healthcare
- Communication Services
- Real Estate
| Sector | % |
|---|---|
| Others | 86.8 |
| Healthcare | 6.9 |
| Communication Services | 3.9 |
| Real Estate | 1.5 |
Market Cap. Distribution
- UNALLOCATED
- MID-CAP
- SMALL-CAP
- MICRO-CAP
| Category | % |
|---|---|
| UNALLOCATED | 86.8 |
| MID-CAP | 6.9 |
| SMALL-CAP | 4.9 |
| MICRO-CAP | 1.5 |
Stocks belong to which Index?
- Others
- RUSSELL 2000
| Index | % |
|---|---|
| Others | 85.2 |
| RUSSELL 2000 | 14.8 |
MASON CAPITAL MANAGEMENT LLC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of MASON CAPITAL MANAGEMENT LLC
Last Reported on: 17 Feb, 2026| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| BKD | brookdale senior living inc | 6.89 | 3,585,940 | 38,692,300 | added | 44.83 | ||
| BORR | borr drilling ltd | 1.57 | 2,182,140 | 8,794,010 | new | |||
| CCO | clear channel outdoor hldgs | 3.87 | 9,828,400 | 21,720,800 | unchanged | 0.00 | ||
| MLAB | mesa laboratories inc | 0.98 | 70,300 | 5,518,550 | unchanged | 0.00 | ||
| RC | ready capital corp | 1.47 | 3,776,140 | 8,231,980 | new | |||
| ats corporation | 76.32 | 15,563,600 | 428,621,000 | unchanged | 0.00 | |||
| solstice adv materials inc | 5.48 | 633,801 | 30,790,100 | new | ||||
| jbs n.v. | 3.35 | 1,306,000 | 18,832,500 | new | ||||
| signature bank | 0.07 | 400,000 | 404,000 | unchanged | 0.00 | |||
| kenvue inc | 0.00 | 0.00 | 0.00 | sold off | -100 | |||