3 Form 4 filings for COSO between 2026-08-13 and 2026-08-26, from 1 filer. 3 discretionary (3 sales, 0 purchases). None state a filing-level total — that aggregate began on 2026-08-17 — so each row below shows only its largest transaction. Prices ran $28 to $28.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-26 | Bruderer Ernst W. | sold | 2,000 | $27.50 | — | — | |
| 2026-08-18 | Bruderer Ernst W. | sold | 1,000 | $27.89 | — | — | |
| 2026-08-13 | Bruderer Ernst W. | sold | 1,000 | $27.56 | — | — | |
| 3 filings · 1 filers · disclosed totals only | $0 (0/3) | — | |||||