Filed: 5/15/2025ACC: 0001104659-25-049417
📋 What this filing means
MASON CAPITAL MANAGEMENT LLC filed this quarterly 13F‑HR report disclosing 5 equity positions with a total reported market value of $427.19M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
5
Positions
$427.19M
Total AUM (reported)
28.14M
Total Shares
Allocation by class
COM$399.30M93.5%
CLASS B$24.25M5.7%
SHS CL A$3.64M0.9%
Portfolio Concentration
Top 3$423.16M99.1%
4–10$4.04M0.9%
Top 3 weight
99.1%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 28.14M
Sole
Full voting authority
28.14M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole5
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings5
Rows:
ATS CORPORATION
SOLEShares15.56M
TypeSH
Market value$388.00M
90.83%
Sole
15.56M
Shared
0.00
None
0.00
PARAMOUNT GLOBAL
SOLEShares2.03M
TypeSH
Market value$24.25M
5.68%
Sole
2.03M
Shared
0.00
None
0.00
CLEAR CHANNEL OUTDOOR HLDGS
SOLEShares9.83M
TypeSH
Market value$10.91M
2.55%
Sole
9.83M
Shared
0.00
None
0.00
COHEN CIRCLE ACQUISITION CORP
SOLEShares325K
TypeSH
Market value$3.64M
0.85%
Sole
325K
Shared
0.00
None
0.00
SIGNATURE BANK
SOLEShares400K
TypeSH
Market value$392.0K
0.09%
Sole
400K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ATS CORPORATIONSOLE | COM | 15.56M | SH | $388.00M 90.83% | 15.56M | 0.00 | 0.00 |
PARAMOUNT GLOBALSOLE | CLASS B | 2.03M | SH | $24.25M 5.68% | 2.03M | 0.00 | 0.00 |
CLEAR CHANNEL OUTDOOR HLDGSSOLE | COM | 9.83M | SH | $10.91M 2.55% | 9.83M | 0.00 | 0.00 |
COHEN CIRCLE ACQUISITION CORPSOLE | SHS CL A | 325K | SH | $3.64M 0.85% | 325K | 0.00 | 0.00 |
SIGNATURE BANKSOLE | COM | 400K | SH | $392.0K 0.09% | 400K | 0.00 | 0.00 |