Activist & passive stakes
Investors crossing the 5% ownership line, from SEC Schedule 13D (activist) and 13G (passive) filings. Newest first.
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All filings, new and amended.1–5 of 5
- PassiveNewOct 27, 2026Universal-Investment-Gesellschaft mbH5% · 560,873 shSEC
- PassiveNewOct 26, 2026Third Rock Ventures VI, L.P.9.5% · 990,000 shSEC
- PassiveNewOct 26, 2026RA Capital Management, L.P.7.2% · 750,000 shSEC
- PassiveNewOct 23, 2026Squadron Master Fund LP5% · 650,000 shSEC
- PassiveNewOct 23, 2026Deep Track Capital, LP9.9% · 990,000 shSEC
| Filing | Symbol | Holder | % Owned | Shares | Filed | SEC filing |
|---|---|---|---|---|---|---|
PassiveNew | TCX | Universal-Investment-Gesellschaft mbH in Tucows Inc /Pa/ | 5% | 560,873 | Oct 27, 2026 | SEC |
PassiveNew | TCXB | Third Rock Ventures VI, L.P. in TCGX Acquisition Corp. II | 9.5% | 990,000 | Oct 26, 2026 | SEC |
PassiveNew | TCXB | RA Capital Management, L.P. in TCGX Acquisition Corp. II | 7.2% | 750,000 | Oct 26, 2026 | SEC |
PassiveNew | TCXB | Squadron Master Fund LP in TCGX Acquisition Corp. II | 5% | 650,000 | Oct 23, 2026 | SEC |
PassiveNew | TCXB | Deep Track Capital, LP in TCGX Acquisition Corp. II | 9.9% | 990,000 | Oct 23, 2026 | SEC |