Insider · SEC Forms 3, 4, 5
CIK 1494730
All transactions
Every Form 4 row this person reported, newest first
Insider · SEC Forms 3, 4, 5
Every Form 4 row this person reported, newest first
Zagorski Mark (CIK 1709574) reported 65 SEC Form 4 insider transactions across 3 companies over the past 18 months (most recent 2026-09-17). Recent activity: Buy DV (22,919 shares), Sell DV (11,701 shares), Buy DV (12,122 shares), Sell DV (6,189 shares), Buy DV (15,219 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 22,919 | $0 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 11,701 | $157,964 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 12,122 | $0 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 6,189 | $83,552 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 15,219 | $0 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 7,770 | $104,895 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 2,757 | $0 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 1,408 | $19,008 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 7,802 | $0 |
| 2026-09-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 3,983 | $53,770 |
| 2026-07-01 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 13,476 | $0 |
| 2026-07-01 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 7,453 | $80,791 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 22,919 | $0 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 12,675 | $129,919 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 12,122 | $0 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 6,704 | $68,716 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 15,219 | $0 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 8,417 | $86,274 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 2,757 | $0 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 1,525 | $15,631 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 7,802 | $0 |
| 2026-06-17 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Sell | 4,315 | $44,229 |
| 2026-06-03 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 416 | $3,432 |
| 2026-05-18 | Teads Holding Co. (TEAD) | Director | Buy | 20,000 | $0 |
| 2026-04-03 | DoubleVerify Holdings, Inc. (DV) | Chief Executive Officer | Buy | 13,476 | $0 |
Source: SEC Form 4 filings · as of 2026-09-17