Mark S. Zagorski

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
New York, NY
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ Andrew E. Grimmig, as Attorney-in-Fact for Mark S. Zagorski
Source: Latest parsed Forms 3/4/5 signature
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Mark S. Zagorski

Form 4 holding Chief Executive Officer, Director

DoubleVerify Holdings, Inc.

Security class
Restricted Stock Units
Shares / value
18,750
Estimated value
$942,375
Report date
15 Jun 2026
Price
$14.36
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Chief Executive Officer, Director

DoubleVerify Holdings, Inc.

Security class
Performance Stock Units
Shares / value
5,514
Estimated value
$277,091
Report date
15 Jun 2026
Price
$14.36
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by Mark S. Zagorski

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .