Zagorski Mark
SEC insider (Form 3/4/5 filer). CIK 0001709574. Chief Executive Officer at DoubleVerify Holdings, Inc. (DV) and 1 other issuer. 91 reported Form 4/5 transactions since Sep 2024; latest on Sep 30, 2026. Located in NEW YORK, NY.
Companies Zagorski Mark has filed insider reports for
- DoubleVerify Holdings, Inc. (DV): Director, Officer, Chief Executive Officer
- Teads Holding Co. (TEAD): Director
Zagorski Mark
CIK: 0001709574
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (91 total)
- Sep 30, 2026DV
DoubleVerify Holdings, Inc.
ExerciseDirect13.5K shares- - Sep 30, 2026DV
DoubleVerify Holdings, Inc.
Tax PaymentDirect6.9K shares at avg. $13.49$93K - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
ExerciseDirect2.8K shares- - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
ExerciseDirect12.1K shares- - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
ExerciseDirect15.2K shares- - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
Tax PaymentDirect7.8K shares at avg. $13.50$105K - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
Tax PaymentDirect6.2K shares at avg. $13.50$84K - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
ExerciseDirect22.9K shares- - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
Tax PaymentDirect11.7K shares at avg. $13.50$158K - Sep 15, 2026DV
DoubleVerify Holdings, Inc.
Tax PaymentDirect1.4K shares at avg. $13.50$19K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 30, 2026 |  DV DoubleVerify Holdings, Inc. | Exercise | 13,476 | - | $0 | Direct |
| Sep 30, 2026 | DV DoubleVerify Holdings, Inc. | Tax Payment | 6,880 | $13.49 | $92,811 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Exercise | 2,757 | - | $0 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Exercise | 12,122 | - | $0 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Exercise | 15,219 | - | $0 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Tax Payment | 7,770 | $13.50 | $104,895 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Tax Payment | 6,189 | $13.50 | $83,552 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Exercise | 22,919 | - | $0 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Tax Payment | 11,701 | $13.50 | $157,964 | Direct |
| Sep 15, 2026 | DV DoubleVerify Holdings, Inc. | Tax Payment | 1,408 | $13.50 | $19,008 | Direct |
1-10 of 91 transactions