13F-HR filed by MASON CAPITAL MANAGEMENT LLC
MASON CAPITAL MANAGEMENT LLC filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-15, with 7 holding rows worth $612,852,905.
- Accession
- 0001104659-26-062410
- Filer
- CIK 1218735
- Filed
- 2026-05-15
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q1 2026
A holdings report, 7 entries on the cover page, a total value of $612,852,905 stated on the cover page (in dollars after the unit check, H1), rows summing to $612,852,905 with VALUE read as dollars as filed, 13F file number 028-10413. The quarter's positions are built on this report. The resolved quarter.
The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).
| Issuer as filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| ATS CORPORATION | 00217Y104 | COM | 16,404,170 | $462,597,594 | dollars as filed | |
| ENVIRI CORP | 415864107 | COM | 4,494,536 | $88,182,796 | dollars as filed | |
| BROOKDALE SR LIVING INC | 112463104 | COM | 2,233,741 | $30,557,577 | dollars as filed | |
| CLEAR CHANNEL OUTDOOR HLDGS | 18453H106 | COM | 9,828,401 | $23,293,310 | dollars as filed | |
| READY CAPITAL CORP | 75574U101 | COM | 4,319,933 | $6,998,291 | dollars as filed | |
| JELD-WEN HLDG INC | 47580P103 | COM | 776,885 | $963,337 | dollars as filed | |
| SIGNATURE BANK | 82669G104 | COM | 400,000 | $260,000 | dollars as filed | Value about 1/1,000 of the price other filers imply, kept as filed and left out of ratios. |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001104659-26-062410 | this filing | 2026-05-15 | acceptance time not in the bulk data set |