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PDF Solutions Inc. 13F holders

Of the 44 funds followed here, 9 reported a position in PDF Solutions Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 917,962 shares worth $65.0 million, 0.0% of its reported book. New this quarter: Atreides Management, Point72 Asset Management, Baillie Gifford, Millennium Management.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
Geode Capital Management917,962$65.0 million0.0%+115,739added30 June 202613F
Atreides Management658,536$46.6 million0.3%+658,536new30 June 202613F
Point72 Asset Management598,902$42.4 million0.0%+598,902new30 June 202613F
Baillie Gifford345,472$24.5 million0.0%+345,472new30 June 202613F
FMR LLC310,389$22.0 million0.0%+8,180added30 June 202613F
Citadel Advisors113,519$8.0 million0.0%+67,531added30 June 202613F
Millennium Management45,944$3.3 million0.0%+45,944new30 June 202613F
Two Sigma Investments5,600$396,4240.0%+5,600new30 June 202613F
Bridgewater Associates4,807$340,2880.0%+4,807new30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
9 October 202613GWasatch Advisors LP and 1 other2.6 million6.3%30 September 2026passive, institutional (13d-1(b))EDGAR
27 May 202613G/AAdvantest America, Inc. and 3 others00.0%15 May 2026passive, under 20% (13d-1(c))EDGAR
14 May 202613GNeedham Investment Management L.L.C. and 5 others2.0 million5.1%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
17 February 202613G/AKibarian John Kachig and 1 other2.6 million6.5%31 December 2025passive, other (13d-1(d))EDGAR
13 February 202613G/ANeedham Investment Management L.L.C. and 11 others2.0 million4.9%31 December 2025passive, institutional (13d-1(b))EDGAR
13 November 202513GNeedham Investment Management L.L.C. and 11 others2.0 million5.1%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
9 September 2026380$47.84SEC
28 August 20261,104$46.15SEC
27 August 20261,107$44.93SEC
26 August 202694$44.28SEC
24 August 20263,310$45.65SEC
14 August 2026184$50.35SEC
11 August 202651$47.63SEC
10 August 2026206$49.45SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 3,310 on 24 August 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to PDFS by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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