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PubMatic, Inc. (PUBM) Institutional Ownership & Insider Trading

153 institutions reported holding PubMatic, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 94 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

PUBMPubMatic, Inc.Follow PUBM — free
Software - Application · Technology
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Price chart with a free account
Market cap
785.3M
P/E TTM
—
Dividend yield
—
52-week
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Next earnings
9 Nov, in 16 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

153 institutions held 66.9% of the shares. Across filers that reported both quarters, shares held changed +5.7%.

Increased+56New+19Decreased-41Closed-13

Largest moves, shares (millions)

Highbridge Capital…+0.6MAmerican Century Companies+0.5MWhitefort Capital Management+0.4MCenterBook Partners-1.3MD. E. Shaw-0.4MTudor Investment Corp Et Al-0.4M

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters
-0.7Sep 24+0.8Dec 24-0.2Mar 25-0.2Jun 25+1.2Sep 25-0.3Dec 25+1.3Mar 26+1.6Jun 26
QuarterHoldersShares held, MChangeIncreasedNewDecreasedClosed
Jun 2615330+5.7%56194113
Mar 2615329+5.1%54264126
Dec 2515128-1.1%52265221
Sep 2514928+4.4%45234621
Jun 2514826-0.7%50234327
Mar 2515526-0.7%37304938
Dec 2415926+3.2%43214929
Sep 2416525-3.2%55244549

PubMatic, Inc. — questions

Who owns PubMatic, Inc. stock?
153 institutions reported PubMatic, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: Graham Holdings Co (7.5%), BlackRock, Inc. (7.2%), VANGUARD CAPITAL MANAGEMENT LLC (3.6%).
Are PubMatic, Inc. insiders buying or selling?
94 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from PubMatic, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.