DEMSKI MARTHA J (CIK 1198230) reported 5 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-07-16). Recent activity: Sell TKNO (12,000 shares), Buy TKNO (12,000 shares), Sell TKNO (8,000 shares), Buy TKNO (54,300 shares), Sell CMRX (72,055 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-16 | Alpha Teknova, Inc. (TKNO) | Director | Sell | 12,000 | $0 |
| 2026-07-16 | Alpha Teknova, Inc. (TKNO) | Director | Buy | 12,000 | $0 |
| 2025-07-01 | Alpha Teknova, Inc. (TKNO) | Director | Sell | 8,000 | $40,480 |
| 2025-06-25 | Alpha Teknova, Inc. (TKNO) | Director | Buy | 54,300 | $0 |
| 2025-04-21 | CHIMERIX INC (CMRX) | Director | Sell | 72,055 | $616,070 |
Source: SEC Form 4 filings · as of 2026-07-16