AlphaYouDV: Zagorski Mark discloses securities transactions
By AlphaYouPublished Form 4
Zagorski Mark
Reporting filer
Zagorski Mark reported Exercise or conversion in DoubleVerify Holdings, Inc.: 13476 units of Common Stock, dated 2026-09-30. The full Form 4 contains 3 transaction entries.
- Disclosed
- Oct 2, 2026
Reported details
3 entries| Security | Owner | Date | Code | Action | Quantity | Price | Following holdings | Reporting delay | Filed terms and references |
|---|---|---|---|---|---|---|---|---|---|
| Common Stock | Zagorski Mark | 2026-09-30 | M | Exercise or conversion | 13476 | 0 | 623,608 | 2 days | Filed terms
|
| Common Stock | Zagorski Mark | 2026-09-30 | F | Tax/exercise withholding | 6880 | 13.49 | 616,728 | 2 days | Filed terms
|
| Restricted Stock Units (derivative) | Zagorski Mark | 2026-09-30 | M | Exercise or conversion | 13476 | 0 | 107,804 | 2 days | Filed terms
|
Common Stock
- Owner
- Zagorski Mark
- Date
- 2026-09-30
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 13476
- Price
- 0
- Following holdings
- 623,608
- Reporting delay
- 2 days
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-09-30
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: 0
- transaction Timeliness:
- transaction Shares: 13476
- transaction Price Per Share: 0
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 623608
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Zagorski Mark
- Date
- 2026-09-30
- Code
- F
- Action
- Tax/exercise withholding
- Quantity
- 6880
- Price
- 13.49
- Following holdings
- 616,728
- Reporting delay
- 2 days
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-09-30
- transaction Form Type: 4
- transaction Code: F
- equity Swap Involved: 0
- id: F2
- transaction Timeliness:
- transaction Shares: 6880
- transaction Price Per Share: 13.49
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 616728
- direct Or Indirect Ownership: D
Restricted Stock Units (derivative)
- Owner
- Zagorski Mark
- Date
- 2026-09-30
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 13476
- Price
- 0
- Following holdings
- 107,804
- Reporting delay
- 2 days
- Filed terms and references
Filed terms
- security Title: Restricted Stock Units
- id: F3
- transaction Date: 2026-09-30
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: 0
- transaction Timeliness:
- transaction Shares: 13476
- transaction Price Per Share: 0
- transaction Acquired Disposed Code: D
- id: F1
- id: F1
- underlying Security Title: Common Stock
- underlying Security Shares: 13476
- shares Owned Following Transaction: 107804
- direct Or Indirect Ownership: D
Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.
Filing context
- Quantities and prices are shown in the units filed. No trade value is inferred from their product.
- Zagorski Mark: Chief Executive Officer, Director.
- F1: Each restricted stock unit was granted on August 19, 2025. 8.33% of the restricted stock units vested and were settled on December 31, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 8.33% on each quarterly anniversary of the 2025 Vesting Date, subject to Mr. Zagorski's continued employment.
- F2: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
- F3: Restricted stock units convert into common stock on a one-for-one basis.
Original sources
Prepared automatically from public filing data. Report a correction.