Institutional shares held 28.2 Million
752K calls
536K puts
Total value of holdings $266M
$7.09M calls
$5.06M puts
Market Cap $402M
42,675,800 Shares Out.
Institutional ownership 66.11%
# of Institutions 178


Latest Institutional Activity in PUBM

Top Purchases

Q3 2025
Center Book Partners LP Shares Held: 748K ($7.06M)
Q3 2025
Ubs Group Ag Shares Held: 423K ($3.99M)
Q3 2025
Roubaix Capital, LLC Shares Held: 271K ($2.56M)
Q3 2025
S Squared Technology, LLC Shares Held: 261K ($2.46M)
Q3 2025
Two Sigma Investments, LP Shares Held: 385K ($3.63M)

Top Sells

Q3 2025
Trexquant Investment LP Shares Held: 57.2K ($540K)
Q3 2025
Citadel Advisors LLC Shares Held: 313K ($2.95M)
Q3 2025
Vanguard Group Inc Shares Held: 2.5M ($23.6M)
Q3 2025
Jane Street Group, LLC Shares Held: 68.9K ($650K)
Q3 2025
Ubs Asset Management Americas Inc Shares Held: 54.4K ($513K)

About PUBM

PubMatic, Inc. provides a cloud infrastructure platform that enables real-time programmatic advertising transactions for Internet content creators and advertisers worldwide. The company's solutions include Openwrap, a header bidding solution that provides enterprise-grade management and analytics tools; Openwrap OTT, a header bidding management solution for OTT; Openwrap SDK, a header bidding solution for in-app developers; private marketplace solutions; and media buyer consoles. In addition, it offers Real-Time Bidding (RTB) programmatic technologies, which provides various selling options across screens and ad formats; digital advertising inventory quality solutions to detect and filter out invalid traffic and other nefarious activity; Ad quality solutions targeting the reduction of security issues, quality issues, and performance issues; Identity Hub, an identity solution that allows for the use of any advertiser preferred user identifier in a scaled and privacy-compliant fashion; Audience Encore, an audience data platform; and cross-platform video, a sell side platform, which connects trusted video buyers to premium publishers. The company's platform supports an array of ad formats and digital device types, including mobile app, mobile web, desktop, display, video, over-the-top (OTT), connected television, and media. PubMatic, Inc. was incorporated in 2006 and is based in Redwood City, California.


Insider Transactions at PUBM

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
1.24M Shares
From 10 Insiders
Exercise of conversion of derivative security 600K shares
Conversion of derivative security 642K shares
Sell / Disposition
1.13M Shares
From 7 Insiders
Open market or private sale 1.13M shares

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