Activist & passive stakes
Investors crossing the 5% ownership line, from SEC Schedule 13D (activist) and 13G (passive) filings. Newest first.
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New filings only, amendments hidden. Show all filings →1–4 of 4
- ActivistNewOct 30, 2026YA II PN, Ltd.9.4% · 2,500,000 shSEC
- PassiveNewOct 30, 2026Vanguard Capital Management5.04% · 954,282 shSEC
- PassiveNewOct 29, 2026Bain Capital Life Sciences Opportunities IV, L.P.9.99% · 14,825,625 shSEC
- ActivistNewOct 28, 2026HoldCo Opportunities Fund V, L.P.5% · 3,535,282 shSEC
| Filing | Symbol | Holder | % Owned | Shares | Filed | SEC filing |
|---|---|---|---|---|---|---|
ActivistNew | IVAI | YA II PN, Ltd. in Ives Ultra AI Opportunities Inc. | 9.4% | 2,500,000 | Oct 30, 2026 | SEC |
PassiveNew | KOP | Vanguard Capital Management in Koppers Holdings Inc | 5.04% | 954,282 | Oct 30, 2026 | SEC |
PassiveNew | ADCT | Bain Capital Life Sciences Opportunities IV, L.P. in ADC Therapeutics SA | 9.99% | 14,825,625 | Oct 29, 2026 | SEC |
ActivistNew | BKU | HoldCo Opportunities Fund V, L.P. in BankUnited, Inc. | 5% | 3,535,282 | Oct 28, 2026 | SEC |