PUBM

Pubmatic Inc-Class A
Information TechnologyUSCUSIP 74467Q103◍ Confluence graph
Tracked 13F Holders
147
-91 QoQ
13F Value (tracked)
$208.0M
Insider Net · 180d
-$13.8M
0↑ 7↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)32 adding · 13 trimming
Insider net (180d)-$13.8M

Who owns PUBM?

147 tracked 13F filers

147 tracked 13F filers disclose a position in PUBM as of the latest SEC 13F filings, a combined $208.0M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
1 source-reported value row is withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$25.1M
3.1M
−1.9%
Reduced · −58K sh
Q1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$13.2M
1.6M
First observed position
No prior filed position
Q1 2026
3RENAISSANCE TECHNOLOGIES LLC
$12.6M
1.5M
+26%
Added · +321K sh
Q1 2026
4DIMENSIONAL FUND ADVISORS LP
$10.2M
1.2M
−2.1%
Reduced · −27K sh
Q1 2026
5GEODE CAPITAL MANAGEMENT, LLC
$13.0M
992K
+4.3%
Added · +41K sh
Q2 2026
6JACOBS LEVY EQUITY MANAGEMENT, INC
$7.6M
932K
+0.3%
Added · +3K sh
Q1 2026
7STATE STREET CORP
$11.2M
854K
+7.9%
Added · +63K sh
Q2 2026
8ROYAL BANK OF CANADA
$6.1M
740K
−14%
Reduced · −123K sh
Q1 2026
9Simcoe Capital LLC
$9.1M
694K
+43%
Added · +208K sh
Q2 2026
10S SQUARED TECHNOLOGY, LLC
$5.5M
676K
+141%
Added · +395K sh
Q1 2026
11HIGHBRIDGE CAPITAL MANAGEMENT LLC
$8.4M
645K
New
+645K sh
Q2 2026
12VANGUARD PORTFOLIO MANAGEMENT LLC
$5.2M
639K
First observed position
No prior filed position
Q1 2026
13TWO SIGMA INVESTMENTS, LP
$4.4M
534K
+13%
Added · +60K sh
Q1 2026
14D. E. Shaw & Co., Inc.
$3.6M
445K
−19%
Reduced · −101K sh
Q1 2026
15Trexquant Investment LP
$3.5M
422K
+37%
Added · +115K sh
Q1 2026
16CenterBook Partners LP
$5.4M
414K
−76%
Reduced · −1.3M sh
Q2 2026
17GOLDMAN SACHS GROUP INC
$2.9M
354K
+42%
Added · +105K sh
Q1 2026
18TUDOR INVESTMENT CORP ET AL
$2.9M
351K
+249%
Added · +250K sh
Q1 2026
19MORGAN STANLEY
$2.8M
342K
+6.6%
Added · +21K sh
Q1 2026
20CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$2.4M
295K
−1.8%
Reduced · −5K sh
Q1 2026
21NORTHERN TRUST CORP
$2.4M
291K
+7.8%
Added · +21K sh
Q1 2026
22PANAGORA ASSET MANAGEMENT INC
$3.8M
288K
+4.2%
Added · +11K sh
Q2 2026
23JPMORGAN CHASE & CO
$2.0M
240K
+153%
Added · +146K sh
Q1 2026
24SUSQUEHANNA INTERNATIONAL GROUP, LLP
$2.0M
239K
+66%
Added · +95K sh
Q1 2026
25VANGUARD FIDUCIARY TRUST CO
$1.9M
231K
First observed position
No prior filed position
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is PUBM being bought or sold by institutions?

Last quarter, 10 funds opened a new position in PUBM and 22 added to an existing one, while 13 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
10
funds
Added
22
funds
Reduced
13
funds
Exited
0
funds

Funds that own PUBM also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT69 funds$162.0B
AMAZON.COM INCAMZN67 funds$115.6B
META PLATFORMS INC-CLASS AMETA67 funds$66.7B
NVIDIA CORPNVDA66 funds$231.7B
APPLE INCAAPL66 funds$176.4B
ALPHABET INC-CL AGOOGL66 funds$94.5B
BROADCOM INCAVGO64 funds$97.6B
ALPHABET INC-CL CGOOG64 funds$76.8B
ELI LILLY & COLLY64 funds$45.3B
VISA INC-CLASS A SHARESV64 funds$36.2B
JPMORGAN CHASE & COJPM64 funds$34.5B
BERKSHIRE HATHAWAY INC-CL BBRK/B64 funds$20.9B

Ranked by how many of PUBM's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$13.8M
7 insiders
Net
-$13.8M
42 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Sep 1, 2026Gimbel LisaCHIEF ACCOUNTING OFFICERSell (S)500$8K
Aug 20, 2026Goel Rajeev K.CHIEF EXECUTIVE OFFICER, Director, 10% OwnerSell (S)50K$824K
Aug 17, 2026Kumar MukulPRESIDENT, ENGINEERINGSell (S)8K$136K
Aug 13, 2026Pantelick StevenCHIEF FINANCIAL OFFICERSell (S)20K$341K
Aug 12, 2026Gimbel LisaCHIEF ACCOUNTING OFFICERSell (S)500$9K
Aug 12, 2026Pantelick StevenCHIEF FINANCIAL OFFICERSell (S)22K$383K
Aug 10, 2026Woods AndrewGENERAL COUNSEL & SECRETARYSell (S)38K$688K
Aug 7, 2026Goel Rajeev K.CHIEF EXECUTIVE OFFICER, Director, 10% OwnerSell (S)211K$3.7M
Jul 23, 2026Goel Rajeev K.CHIEF EXECUTIVE OFFICER, Director, 10% OwnerSell (S)50K$617K
Jul 16, 2026Woods AndrewGENERAL COUNSEL & SECRETARYSell (S)3K$45K
Jul 16, 2026Goel Rajeev K.CHIEF EXECUTIVE OFFICER, Director, 10% OwnerSell (S)9K$125K
Jul 16, 2026Kumar MukulPRESIDENT, ENGINEERINGSell (S)8K$109K

Institutional ownership over time

50 funds-72 since Q3 2024
071141Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $64.3M · 1 values withheld

Recent filings

15 shown

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Connected entities for PUBM

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Ask your agent what changed in PUBM

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/PUBM/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for PUBM.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PUBM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.