Who owns OCTAVE SPECIALTY GROUP INC (AMBC)? Elite investor 13F holders
4 tracked elite investors reported holding OCTAVE SPECIALTY GROUP INC as of 2026-06-30, including Third Avenue Management, Tudor Investment, Renaissance Technologies LLC, D.E. Shaw. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.
4 tracked investors currently reported holding · Latest report period: 2026-06-30 · Financials · Insurance
Reported holders and securities, including exits (up to 20)
| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|---|---|---|---|---|---|---|---|---|---|
| Third Avenue Management | OCTAVE SPECIALTY GROUP INC | SHARE | 2026-06-30 | 2026-08-12 00:00:00 | 8373325.00 USD | 1341879.000000 | Shares | add | Original filing |
| Tudor Investment | OCTAVE SPECIALTY GROUP INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 1350099.00 USD | 216362.000000 | Shares | add | Original filing |
| Renaissance Technologies LLC | OCTAVE SPECIALTY GROUP INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 731328.00 USD | 117200.000000 | Shares | reduce | Original filing |
| D.E. Shaw | OCTAVE SPECIALTY GROUP INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 76172.00 USD | 12207.000000 | Shares | reduce | Original filing |
Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.
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