Pdf Solutions Inc (PDFS) Insider Ownership

Historic Insider Ownership Trends

Pdf Solutions's top three insider shareholders as of April 11, 2026 are John Kachig Kibarian (President And Ceo, 2.52Mn shares), Kimon Michaels (Evp Of Products And Solutions, 1.54Mn shares), Andrzej Strojwas (Chief Technology Officer, 89.20K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
John Kachig Kibarian President And Ceo 0 2,522,756 25 Feb, 2025
Kimon Michaels Evp Of Products And Solutions 0 1,542,072 11 Dec, 2025
Andrzej Strojwas Chief Technology Officer 89,204 0 05 Jan, 2026
Adnan Raza Evp, Finance And Cfo 71,010 0 05 Jan, 2026
Marco Iansiti - 39,465 0 05 Jul, 2022
Joseph R Bronson - 38,267 0 02 Jul, 2025
Michael B Gustafson - 37,503 0 02 Jul, 2025
Kimon Michaels Evp Of Products And Solutions 0 28,298 03 Jul, 2025
Nancy Erba - 27,383 0 02 Jul, 2025
Ye Jane Li - 23,943 0 02 Jul, 2025
Shuo Zhang - 22,192 0 02 Jul, 2025
Chi-Foon Chan - 21,479 0 02 Jul, 2025
Nancy Erba - 0 13,739 12 Dec, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Jan, 2026 Adnan Raza Common Stock D 5,498 $28.53 71,010 D F
01 Jan, 2026 Andrzej Strojwas Common Stock D 2,762 $28.53 89,204 D F
09 Dec, 2025 Kimon Michaels Common Stock D 5,070 $0.00 1,542,072 I G
01 Aug, 2025 Adnan Raza Common Stock A 35,000 - 76,508 D A
01 Aug, 2025 Andrzej Strojwas Common Stock A 8,000 - 91,966 D A
01 Jul, 2025 Andrzej Strojwas Common Stock D 2,497 $21.87 83,613 D F
01 Jul, 2025 Adnan Raza Common Stock D 4,921 $21.87 63,880 D F
01 Jul, 2025 Kimon Michaels Common Stock D 798 $21.87 28,298 I F
01 Jul, 2025 Michael B Gustafson Common Stock A 7,429 - 37,503 D A
01 Jul, 2025 Chi-Foon Chan Common Stock A 7,429 - 21,479 D A
01 Jul, 2025 Ye Jane Li Common Stock A 7,429 - 23,943 D A
01 Jul, 2025 Joseph R Bronson Common Stock A 7,429 - 38,267 D A
01 Jul, 2025 Shuo Zhang Common Stock A 7,429 - 22,192 D A
01 Jul, 2025 Nancy Erba Common Stock A 7,429 - 27,383 D A
13 May, 2025 Michael B Gustafson Common Stock A 7,500 $19.45 30,074 D P
24 Feb, 2025 John Kachig Kibarian Common Stock A 34,356 $22.80 2,507,112 I P
24 Feb, 2025 Michael B Gustafson Common Stock A 4,000 $23.06 22,574 D P
25 Feb, 2025 John Kachig Kibarian Common Stock A 15,644 $22.11 2,522,756 I P
01 Jan, 2025 Kimon Michaels Common Stock D 870 - 33,394 I F
01 Jan, 2025 Andrzej Strojwas Common Stock D 2,833 - 85,631 D F