Grigorios Siokas
CIK 1660125 · Chief Executive Officer · last filed 2026-06-11
Grigorios Siokas is a Chief Executive Officer who has filed 92 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing, for COSM, was dated Jun 11, 2026. Across all open-market trades the lifetime net is +$12.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $2.6M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.64M
1
92
$12.41M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| COSM | Chief Executive Officer | 12,561,914 | $0.21 | $2.64M | $12.41M | 54 | 2026-06-11 |
Recent Filings
92 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | COSM | Mixed | +2,350,000 | $665.0K | EDGAR |
| 2026-02-13 | COSM | Buy (P) | +388,532 | $145.0K | EDGAR |
| 2026-02-12 | COSM | Buy (P) | +291,262 | $120.0K | EDGAR |
| 2026-01-26 | COSM | Buy (P) | +90,325 | $45.0K | EDGAR |
| 2026-01-21 | COSM | Buy (P) | +353,321 | $175.0K | EDGAR |
| 2026-01-15 | COSM | Buy (P) | +493,495 | $220.0K | EDGAR |
| 2026-01-13 | COSM | Buy (P) | +113,185 | $57.0K | EDGAR |
| 2026-01-09 | COSM | Buy (P) | +156,190 | $81.0K | EDGAR |
| 2026-01-08 | COSM | Buy (P) | +124,880 | $65.0K | EDGAR |
| 2026-01-07 | COSM | Buy (P) | +133,953 | $72.0K | EDGAR |