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.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Versant Capital Management, Inc | Buy | +148 | +9.2% | 1,758 | $89.75K | Q3 2026 | Oct 02, 2026 |
| Envestnet Asset Management Inc | Sell | -96,826 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 23, 2026 |
| State Street Corp | Sell | -1,386,498 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 22, 2026 |
| Manufacturers Life Insurance Company, The | Sell | -15,392 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Sell | -64 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Sell | -84,419 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 02, 2026 |
| Brown, Lisle/Cummings, Inc. | Sell | -35 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Sell | -36,126 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Sell | -4,901 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Sell | -5,355 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 19, 2026 |
| Pure Financial Advisors, Llc | Sell | -2,959 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 17, 2026 |
| Needham Investment Management Llc | Sell | -2,065,000 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Atreides Management, Lp | Sell | -658,536 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Loomis Sayles & Co L P | Sell | -643,268 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Ophir Asset Management Pty Ltd | Sell | -607,343 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Sell | -598,902 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Samjo Management, Llc | Sell | -548,285 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Oberweis Asset Management Inc/ | Sell | -426,400 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Invesco Ltd. | Sell | -422,931 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -371,392 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Sell | -367,090 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Df Dent & Co Inc | Sell | -354,951 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Divisar Capital Management Llc | Sell | -307,879 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | Sell | -203,163 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -126,387 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -121,307 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Sell | -120,966 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Pillsbury Lake Capital Llc | Sell | -117,854 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -102,116 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Sell | -95,294 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
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.
Related PDFS Institutional Insights
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