Zagorski Mark's Form 4 filing
DoubleVerify Holdings, Inc. (DV) · filed Sep 17, 2026
- Accession no.
- 0001819928-26-000096
- Filed
- Sep 17, 2026, 4:08 PM ET
- Trade date
- Sep 15, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Not checked
This filing lists 10 non-derivative transactions and 6 derivative transactions. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Zagorski MarkCIK 0001709574 | Director, Officer (Chief Executive Officer) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Common Stock | MOption exerciseAcquired | +22,919 | $0.00F1 | $0 | 603,283 | Direct | |
| Sep 15, 2026 | Common Stock | FTax withholdingDisposed | −11,701 | $13.50 | −$157,963.5 | 591,582 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseAcquired | +12,122 | $0.00F3 | $0 | 603,704 | Direct | |
| Sep 15, 2026 | Common Stock | FTax withholdingDisposed | −6,189 | $13.50 | −$83,551.5 | 597,515 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseAcquired | +15,219 | $0.00F5 | $0 | 612,734 | Direct | |
| Sep 15, 2026 | Common Stock | FTax withholdingDisposed | −7,770 | $13.50 | −$104,895 | 604,964 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseAcquired | +2,757 | $0.00F6 | $0 | 607,721 | Direct | |
| Sep 15, 2026 | Common Stock | FTax withholdingDisposed | −1,408 | $13.50 | −$19,008 | 606,313 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseAcquired | +7,802 | $0.00F7 | $0 | 614,115 | Direct | |
| Sep 15, 2026 | Common Stock | FTax withholdingDisposed | −3,983 | $13.50 | −$53,770.5 | 610,132 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Common Stock | MOption exerciseDisposed | −22,919 | $0.00 | $0 | 206,243 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseDisposed | −12,122 | $0.00 | $0 | 60,605 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseDisposed | −15,219 | $0.00 | $0 | 136,971 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseDisposed | −2,757 | $0.00 | $0 | 2,757 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseDisposed | −7,802 | $0.00 | $0 | 39,005 | Direct | |
| Sep 15, 2026 | Common Stock | MOption exerciseDisposed | −9,375 | $0.00 | $0 | 9,375 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F1
Each restricted stock unit was granted on March 12, 2026. 8.33% of the restricted stock units vested and were settled on March 15, 2026 (the "2026 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 8.33% on each quarterly anniversary of the 2026 Vesting Date.
Referenced by the price of 1 transaction in Table I.
- F3
Each performance stock unit was granted on March 13, 2025. 41.67% of the earned shares vested and were settled on the 2026 Vesting Date, and the remainder of the earned shares vest and settle at a rate of 8.33% on each quarterly anniversary of the 2026 Vesting Date.
Referenced by the price of 1 transaction in Table I.
- F5
Each restricted stock unit was granted on March 13, 2025. 6.25% of the restricted stock units vested and were settled on March 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.
Referenced by the price of 1 transaction in Table I.
- F6
Each performance stock unit was granted on December 19, 2023. 41.67% of the earned shares vested and were settled on the 2025 Vesting Date, and the remainder of the earned shares vest and settle at a rate of 8.33% on each quarterly anniversary of the 2025 Vesting Date.
Referenced by the price of 1 transaction in Table I.
- F7
Each restricted stock unit was granted on December 19, 2023. 6.25% of the restricted stock units vested and were settled on March 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.
Referenced by the price of 1 transaction in Table I.