PDF SOLUTIONS INC (PDFS) Institutional Ownership Changes & 13F Activity

PDF SOLUTIONS INC (PDFS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q3 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Needham Investment Management Llc, State Street Corp, Atreides Management, Lp, Loomis Sayles & Co L P, and Ophir Asset Management Pty Ltd.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Versant Capital Management, IncBuy+148+9.2%1,758$89.75KQ3 2026Oct 02, 2026
Envestnet Asset Management IncSell-96,826-100.0%0$0.00Q3 2026Sep 23, 2026
State Street CorpSell-1,386,498-100.0%0$0.00Q3 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheSell-15,392-100.0%0$0.00Q3 2026Sep 09, 2026
Parkside Financial Bank & TrustSell-64-100.0%0$0.00Q3 2026Sep 04, 2026
Citadel Advisors LlcSell-84,419-100.0%0$0.00Q3 2026Sep 02, 2026
Brown, Lisle/Cummings, Inc.Sell-35-100.0%0$0.00Q3 2026Sep 02, 2026
California State Teachers Retirement SystemSell-36,126-100.0%0$0.00Q3 2026Aug 24, 2026
Assenagon Asset Management S.A.Sell-4,901-100.0%0$0.00Q3 2026Aug 21, 2026
Mercer Global Advisors IncSell-5,355-100.0%0$0.00Q3 2026Aug 19, 2026
Pure Financial Advisors, LlcSell-2,959-100.0%0$0.00Q3 2026Aug 17, 2026
Needham Investment Management LlcSell-2,065,000-100.0%0$0.00Q3 2026Aug 14, 2026
Atreides Management, LpSell-658,536-100.0%0$0.00Q3 2026Aug 14, 2026
Loomis Sayles & Co L PSell-643,268-100.0%0$0.00Q3 2026Aug 14, 2026
Ophir Asset Management Pty LtdSell-607,343-100.0%0$0.00Q3 2026Aug 14, 2026
Point72 Asset Management, L.P.Sell-598,902-100.0%0$0.00Q3 2026Aug 14, 2026
Samjo Management, LlcSell-548,285-100.0%0$0.00Q3 2026Aug 14, 2026
Oberweis Asset Management Inc/Sell-426,400-100.0%0$0.00Q3 2026Aug 14, 2026
Invesco Ltd.Sell-422,931-100.0%0$0.00Q3 2026Aug 14, 2026
Goldman Sachs Group IncSell-371,392-100.0%0$0.00Q3 2026Aug 14, 2026
Charles Schwab Investment Management IncSell-367,090-100.0%0$0.00Q3 2026Aug 14, 2026
Df Dent & Co IncSell-354,951-100.0%0$0.00Q3 2026Aug 14, 2026
Divisar Capital Management LlcSell-307,879-100.0%0$0.00Q3 2026Aug 14, 2026
T. Rowe Price Investment Management, Inc.Sell-203,163-100.0%0$0.00Q3 2026Aug 14, 2026
Susquehanna International Group, LlpSell-126,387-100.0%0$0.00Q3 2026Aug 14, 2026
Sei Investments CoSell-121,307-100.0%0$0.00Q3 2026Aug 14, 2026
Ameriprise Financial IncSell-120,966-100.0%0$0.00Q3 2026Aug 14, 2026
Pillsbury Lake Capital LlcSell-117,854-100.0%0$0.00Q3 2026Aug 14, 2026
Jane Street Group, LlcSell-102,116-100.0%0$0.00Q3 2026Aug 14, 2026
Squarepoint Ops LlcSell-95,294-100.0%0$0.00Q3 2026Aug 14, 2026
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Frequently asked questions about PDFS activity

  • Which institutional owners are buying PDFS?

    Institutional owners buying PDFS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in PDFS activity?

    "Buy" means an investor increased their reported position in PDFS compared to the prior reporting period. This reflects growing exposure to PDF SOLUTIONS INC (PDFS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in PDFS increasing?

    Institutional interest in PDFS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.