4 institutions reported holding $261,205 of SIGNATURE BANK (SBNY) in SEC 13F filings for 2026-03-31. Largest institutional holders: MASON CAPITAL MANAGEMENT LLC ($260,000), TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY ($1,000), HUNTINGTON NATIONAL BANK ($196), NBC SECURITIES, INC. ($9). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | MASON CAPITAL MANAGEMENT LLC | $260,000 | 400,000 | Hold |
| 2 | TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | $1,000 | 1,191 | Hold |
| 3 | HUNTINGTON NATIONAL BANK | $196 | 302 | Hold |
| 4 | NBC SECURITIES, INC. | $9 | 15 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31