Who owns PDF SOLUTIONS INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of PDFS from SEC Form 13F filings across 283 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 283 institutions disclosed 38.9M shares of PDF SOLUTIONS INC worth $2.75B — about 95.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
283
13F holders
$2.75B
value, 2026 filers
95.1%
of shares outstanding (38.9M sh)
98
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of PDFS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.6M | $392.9M | 0.0% | 13.6% | +14.1% |
| 2 | NEEDHAM INVESTMENT MANAGEMENT LLC | 2.1M | $146.2M | 4.4% | 5% | +2.1% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.7M | $117.8M | 0.0% | 4.1% | +19.9% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | $103.2M | 0.0% | 3.6% | +4.1% |
| 5 | STATE STREET CORP | 1.4M | $98.2M | 0.0% | 3.4% | +16.3% |
| 6 | WASATCH ADVISORS LP | 1.4M | $97.7M | 0.6% | 3.4% | +171.9% |
| 7 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 1.3M | $93.4M | 0.3% | 3.2% | +15.7% |
| 8 | Ranger Investment Management, L.P. | 1.1M | $81.4M | 5.1% | 2.8% | -10.2% |
| 9 | SNYDER CAPITAL MANAGEMENT L P | 1.0M | $73.2M | 1.3% | 2.5% | -2.5% |
| 10 | Jupiter Topco LLCNEW | 927,781 | $65.7M | 0.0% | 2.3% | new |
| 11 | JPMORGAN CHASE & CO | 927,267 | $61.1M | 0.0% | 2.3% | +6221.7% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 917,962 | $65.0M | 0.0% | 2.2% | +14.4% |
| 13 | EMERALD ADVISERS, LLC | 884,294 | $62.6M | 1.5% | 2.2% | +2.7% |
| 14 | DIMENSIONAL FUND ADVISORS LP | 841,186 | $59.5M | 0.0% | 2.1% | -0.5% |
| 15 | JENNISON ASSOCIATES LLCNEW | 716,075 | $50.7M | 0.0% | 1.7% | new |
| 16 | Atreides Management, LPNEW | 658,536 | $46.6M | 0.3% | 1.6% | new |
| 17 | LOOMIS SAYLES & CO L P | 643,268 | $45.5M | 0.1% | 1.6% | -22.2% |
| 18 | Ophir Asset Management Pty Ltd | 607,343 | $43.0M | 3.5% | 1.5% | -46.6% |
| 19 | Point72 Asset Management, L.P.NEW | 598,902 | $42.4M | 0.0% | 1.5% | new |
| 20 | EMERALD MUTUAL FUND ADVISERS TRUST | 566,429 | $40.1M | 1.4% | 1.4% | -4.7% |
| 21 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 554,226 | $39.2M | 0.1% | 1.4% | -55.9% |
| 22 | Samjo Management, LLC | 548,285 | $38.8M | 13.2% | 1.3% | -40.4% |
| 23 | Silverberg Bernstein Capital Management LLC | 465,823 | $33.0M | 12.6% | 1.1% | -1.5% |
| 24 | OBERWEIS ASSET MANAGEMENT INC/NEW | 426,400 | $30.2M | 0.6% | 1% | new |
| 25 | Invesco Ltd. | 422,931 | $29.9M | 0.0% | 1% | +193.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.