Mason Capital Management LLC

CIK 1218735 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Mason Capital Management LLC.

Recent SEC filings

FiledFormAccession number
Aug 19, 2026N-PX0001438934-26-000994
Aug 14, 2026SCHEDULE 13G/A0000919574-26-005381
Aug 14, 202613F-HR0001104659-26-097052
Aug 5, 2026SCHEDULE 13G0000919574-26-004813
Jul 14, 2026SCHEDULE 13G0000919574-26-004420
May 15, 202613F-HR0001104659-26-062410
Apr 6, 2026SCHEDULE 13G0000902664-26-001890
Feb 17, 202613F-HR0001104659-26-016335
Jan 29, 2026SCHEDULE 13G0000902664-26-000560
Nov 14, 202513F-HR0001104659-25-111862
Aug 26, 2025N-PX0001438934-25-001674
Aug 14, 202513F-HR0001104659-25-078546
May 15, 202513F-HR0001104659-25-049417
May 15, 2025DFAN14A0001104659-25-049300
Feb 14, 202513F-HR0001104659-25-014023
Nov 14, 202413F-HR0001104659-24-118983
Nov 13, 2024SC 13G/A0000902664-24-006451
Aug 28, 2024N-PX0001438934-24-001009
Aug 14, 202413F-HR0001104659-24-089695
May 15, 202413F-HR0001104659-24-062078
Feb 15, 202413F-HR0001104659-24-024372
Feb 14, 2024SC 13G0000902664-24-001655
Nov 14, 202313F-HR0001104659-23-118259
Aug 14, 202313F-HR0001104659-23-091289
Jul 21, 2023SC 13D/A0000902664-23-004061