Grigorios Siokas
Chief Executive Officer at Cosmos Health Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Cosmos Health Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Cosmos Health Inc. July 15, 202679.1%
-
Cosmos Health Inc. September 30, 202586.3%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 30, 2026 | Cosmos Health Inc. | Open-market purchase | +349,825 | $0.20 | $70,000 |
| Jul 29, 2026 | Cosmos Health Inc. | Open-market purchase | +766,284 | $0.18 | $140,000 |
| Jun 11, 2026 | Cosmos Health Inc. | Open-market purchase | +218,447 | $0.21 | $45,874 |
| Jun 10, 2026 | Cosmos Health Inc. | Open-market purchase | +701,447 | $0.23 | $161,333 |
| May 19, 2026 | Cosmos Health Inc. | Grant or award | +2,350,000 | $0.28 | $658,000 |
| Feb 12, 2026 | Cosmos Health Inc. | Open-market purchase | +388,532 | $0.37 | $143,757 |
| Feb 11, 2026 | Cosmos Health Inc. | Open-market purchase | +291,262 | $0.41 | $119,417 |
| Jan 23, 2026 | Cosmos Health Inc. | Open-market purchase | +90,325 | $0.50 | $45,163 |
| Jan 20, 2026 | Cosmos Health Inc. | Open-market purchase | +353,321 | $0.50 | $176,661 |
| Jan 14, 2026 | Cosmos Health Inc. | Open-market purchase | +493,495 | $0.45 | $222,073 |
| Jan 12, 2026 | Cosmos Health Inc. | Open-market purchase | +113,185 | $0.50 | $56,593 |
| Jan 8, 2026 | Cosmos Health Inc. | Open-market purchase | +156,190 | $0.52 | $81,219 |
| Jan 7, 2026 | Cosmos Health Inc. | Open-market purchase | +124,880 | $0.52 | $64,938 |
| Jan 6, 2026 | Cosmos Health Inc. | Open-market purchase | +133,953 | $0.54 | $72,335 |
| Dec 31, 2025 | Cosmos Health Inc. | Other | +1,350,000 | — | — |
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