OCTAVE SPECIALTY GROUP INC - OSG
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Jul 31, 2026 | SCHEDULE 13G | Vanguard Capital Management | 5.04% | 2,269,979 | View |
| May 11, 2026 | SCHEDULE 13G/A | Western Standard LLC | 4.99% | 2,247,591 | View |
| May 11, 2026 | SCHEDULE 13G/A | JANE STREET GROUP, LLC | 1.7% | 771,384 | View |
| May 11, 2026 | SCHEDULE 13G/A | Jane Street Capital, LLC | 0.9% | 420,679 | View |
| May 11, 2026 | SCHEDULE 13G/A | Jane Street Options, LLC | 0.0% | 102 | View |
| May 11, 2026 | SCHEDULE 13G/A | Jane Street Global Trading, LLC | 0.8% | 350,603 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.