COSM Cosmos Health Inc.: institutional ownership and insider trading
24 funds reported holding $552K of Cosmos Health Inc. in their latest 13F filings; in Q2 2026 funds net bought $102K, with 5 new positions and 4 funds selling out; over the last 12 months insiders bought $1.75M and sold $0 on the open market.
Famous investors holding COSM
- Ken Griffin (Citadel Advisors): $39.6K, 0.0% of the portfolio
Largest institutional holders of COSM
- VANGUARD GROUP INC — $117K
- UBS Group AG (UBS) — $110K
- VANGUARD FIDUCIARY TRUST CO — $61.8K
- JANE STREET GROUP, LLC — $53.4K
- GEODE CAPITAL MANAGEMENT, LLC — $52.1K
- BlackRock, Inc. (BLK) — $49.5K
- CITADEL ADVISORS LLC — $39.6K
- VANGUARD CAPITAL MANAGEMENT LLC — $32.2K
- NORTHERN TRUST CORP (NTRS, NTRSO) — $9.95K
- STATE STREET CORP (STT, STT-PG) — $8.36K
Recent COSM insider trades
- Jul 30, 2026: Siokas Grigorios bought 349,825 shares ($70.0K)
- Jul 29, 2026: Siokas Grigorios bought 766,284 shares ($138K)
- Jun 16, 2026: Terzis Georgios bought 168,135 shares ($42.0K)
- Jun 11, 2026: Siokas Grigorios bought 218,447 shares ($45.9K)
5%+ owners
- Grigorios Siokas: 22.9% (Schedule 13D/A, filed May 27, 2025)
- Siokas Grigorios: 17.0% (Schedule 13D/A, filed Jan 29, 2025)
- Andreas D Bovopoulos: 7.0% (Schedule 13G, filed Mar 6, 2025)
- Bovopoulos Andreas: 6.5% (Schedule 13G/A, filed Oct 16, 2026)