Who owns Pdf Solutions Inc (PDFS)?
140 US mutual funds and ETFs from 84 fund families reported a position in PDFS for the quarter ending 2026-06-30. Against their own report a quarter earlier, 70 raised shares, 26 opened a new position, 29 cut and 5 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Ishares Trust | 8 | 28.7% |
| Needham Funds Inc | 3 | 15.4% |
| Vanguard Index Funds | 2 | 12.1% |
| Wasatch Funds Trust | 5 | 5.9% |
| Janus Investment Fund | 1 | 5.6% |
| Spdr Series Trust | 5 | 4.2% |
Tracked managers holding PDFS
None of the managers Prior Moves tracks on 13F reports PDFS in its latest filing.
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about PDFS. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
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