SEC Form 4 · accession 0001819928-26-000097
DoubleVerify Holdings, Inc. · DV
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Steven John Mougis
Officer — Global Chief Comm. Officer
Period of report
Sep 15, 2026
Accepted (ET)
Sep 17, 2026 · 4:09 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001819928
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Sep 15, 2026 | M | 9,376 | $0.00 | A | 104,536 | D | |
| Common Stock | Sep 15, 2026 | F | 4,787 | $13.50 | D | 99,749 | D | |
| Common StockF3 | Sep 15, 2026 | M | 841 | $0.00 | A | 100,590 | D | |
| Common Stock | Sep 15, 2026 | F | 430 | $13.50 | D | 100,160 | D | |
| Common StockF5 | Sep 15, 2026 | M | 3,171 | $0.00 | A | 103,331 | D | |
| Common Stock | Sep 15, 2026 | F | 1,619 | $13.50 | D | 101,712 | D | |
| Common StockF6 | Sep 15, 2026 | M | 27,056 | $0.00 | A | 128,768 | D | |
| Common Stock | Sep 15, 2026 | F | 13,813 | $13.50 | D | 114,955 | D | |
| Common StockF7 | Sep 15, 2026 | M | 251 | $0.00 | A | 115,206 | D | |
| Common Stock | Sep 15, 2026 | F | 129 | $13.50 | D | 115,077 | D | |
| Common StockF8 | Sep 15, 2026 | M | 2,125 | $0.00 | A | 117,202 | D | |
| Common Stock | Sep 15, 2026 | F | 1,085 | $13.50 | D | 116,117 | D | |
| Common StockF9 | Sep 15, 2026 | M | 1,143 | $0.00 | A | 117,260 | D | |
| Common Stock | Sep 15, 2026 | F | 584 | $13.50 | D | 116,676 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF10,F1 | — | Sep 15, 2026 | M | 9,376 | D | — | — | Common Stock | 9,376 | 84,372 | D |
| Performance Stock UnitsF11,F3 | — | Sep 15, 2026 | M | 841 | D | — | — | Common Stock | 841 | 4,208 | D |
| Restricted Stock UnitsF10,F5 | — | Sep 15, 2026 | M | 3,171 | D | — | — | Common Stock | 3,171 | 31,705 | D |
| Restricted Stock UnitsF10,F6 | — | Sep 15, 2026 | M | 27,056 | D | — | — | Common Stock | 27,056 | 54,112 | D |
| Performance Stock UnitsF11,F7 | — | Sep 15, 2026 | M | 251 | D | — | — | Common Stock | 251 | 251 | D |
| Restricted Stock UnitsF10,F8 | — | Sep 15, 2026 | M | 2,125 | D | — | — | Common Stock | 2,125 | 12,748 | D |
| Restricted Stock UnitsF10,F9 | — | Sep 15, 2026 | M | 1,143 | D | — | — | Common Stock | 1,143 | 2,286 | D |
Explanation of responses
- F1Each 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.
- F10Restricted stock units convert into common stock on a one-for-one basis.
- F11Performance stock units convert into common stock on a one-for-one basis.
- F2Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
- F3Each performance stock unit was granted on March 31, 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.
- F4Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.
- F5Each restricted stock unit was granted on March 31, 2025. 6.25% of the restricted stock units vested and settled on June 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.
- F6Each restricted stock unit was granted on March 13, 2025. 12.5% of the restricted stock units vested and were settled on the 2025 Vesting Date, and the remainder of the restricted stock units vest and settle at a rate of 12.5% on each quarterly anniversary of the 2025 Vesting Date.
- F7Each performance stock unit was granted on March 15, 2024. 41.67% of the earned shares vested and were settled on March 15, 2025 (the "2025 PSU 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 PSU Vesting Date.
- F8Each restricted stock unit was granted on March 15, 2024. 6.25% of the restricted stock units vested and settled on June 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.
- F9Each restricted stock unit was granted on March 15, 2023. 6.25% of the restricted stock units vested and settled on June 15, 2023 (the "2023 Vesting Date") and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2023 Vesting Date.