Form4insider filings, from the source

Insider holders · CIK 0001120914

PDF SOLUTIONS INC · PDFS

Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity

InsiderDirect sharesIndirect sharesTotal reportedLast report (ET)From
Kimon MichaelsVP of Products and Solutions1,466,95989,1751,556,134Dec 4, 2018 · 7:16 pm ESTForm 4
Lucio LanzaDirector318,967121,720440,687Aug 21, 2017 · 1:55 pm EDTForm 4
Adnan RazaEVP, Finance and CFO80,69731,250111,947Jul 2, 2026 · 4:13 pm EDTForm 4
Andrzej StrojwasChief Technology Officer90,965—90,965Sep 1, 2026 · 2:09 pm EDTForm 4
Russell ChristineVP, Finance and CFO80,000—80,000Aug 16, 2018 · 8:09 pm EDTForm 3
R Stephen HeinrichsDirector29,96819,43149,399Jul 5, 2016 · 6:51 pm EDTForm 4
Cornelis HartgringVice President, CSS46,082—46,082Jul 2, 2018 · 7:26 pm EDTForm 4
Nancy ErbaDirector11,94331,86843,811Jul 2, 2026 · 4:29 pm EDTForm 4
Joseph R BronsonDirector40,956—40,956Jul 2, 2026 · 4:35 pm EDTForm 4
Michael B GustafsonDirector40,192—40,192Jul 2, 2026 · 4:42 pm EDTForm 4
Ye Jane LiDirector26,632—26,632Jul 2, 2026 · 4:33 pm EDTForm 4
Chi-Foon ChanDirector24,168—24,168Jul 2, 2026 · 4:40 pm EDTForm 4
Shuo ZhangDirector23,380—23,380Aug 12, 2026 · 9:32 pm EDTForm 4
Gregory C WalkerCFO, VP Finance21,468—21,468Jul 2, 2018 · 7:16 pm EDTForm 4
Marco IansitiDirector18,189—18,189Nov 2, 2018 · 7:47 pm EDTForm 4
Gerald Zheyao YinDirector10,325—10,325Aug 3, 2018 · 2:00 pm EDTForm 4
KwangH KimVP of Business Development4,463—4,463Jun 5, 2017 · 1:58 pm EDTForm 4

Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.