PDF Solutions, Inc. (PDFS) has 20 known insider and institutional holders on record. The largest holder is KIBARIAN JOHN KACHIG with 2,507,112 shares. Other notable holders include MICHAELS KIMON and LANZA LUCIO.
Over the last 12 months, insiders have made 15 transactions in PDFS stock — 9 buys (valued at $145.88K) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
PDFS Insider Ownership
Top Holder
KIBARIAN JOHN KACHIG
2,507,112 shares
Buys (12 mo)
9
$145.88K value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Kibarian John Kachig |
President and CEO |
2,507,112 |
2025-02-25 |
|
| 2 |
Michaels Kimon |
EVP of Products and Solutions |
1,542,072 |
2025-12-11 |
|
| 3 |
Lanza Lucio |
Director |
318,967 |
2017-08-21 |
|
| 4 |
Joseph David |
Chief Strategy Officer |
264,174 |
2010-05-18 |
|
| 5 |
Melman P Steven |
VP Investor Relations |
156,878 |
2009-05-19 |
|
| 6 |
Strojwas Andrzej |
Chief Technology Officer |
89,204 |
2026-01-05 |
|
| 7 |
Raza Adnan |
EVP, Finance and CFO |
71,010 |
2026-01-05 |
|
| 8 |
Christine Russell |
EVP, Finance and CFO |
69,225 |
2020-02-03 |
|
| 9 |
Jones Keith A |
VP Finance & CFO |
64,134 |
2010-03-17 |
|
| 10 |
Leo Joy E |
Exe.vp/chief Administration |
50,000 |
2009-11-02 |
|
| 11 |
Jensen James D |
VP, Yield Aware - Fdc |
49,704 |
2009-08-28 |
|
| 12 |
Hartgring Cornelis |
Vice President, Css |
46,082 |
2018-07-02 |
|
| 13 |
Iansiti Marco |
Director |
39,465 |
2022-07-05 |
|
| 14 |
Bronson Joseph R |
Director |
38,267 |
2025-07-02 |
|
| 15 |
Gustafson Michael B |
Director |
37,503 |
2025-07-02 |
|
| 16 |
Caulfield Thomas |
Director |
30,714 |
2013-09-11 |
|
| 17 |
Heinrichs R Stephen |
Director |
29,968 |
2016-07-05 |
|
| 18 |
Erba Nancy |
Director |
27,383 |
2025-07-02 |
|
| 19 |
Li Ye Jane |
Director |
23,943 |
2025-07-02 |
|
| 20 |
Zhang Shuo |
Director |
22,192 |
2025-07-02 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-01-01 |
Strojwas Andrzej |
Chief Technology Officer |
Tax Withholding of RSU |
2,762 |
$28.53 |
$78.8K |
| 2026-01-01 |
Raza Adnan |
EVP, Finance and CFO |
Tax Withholding of RSU |
5,498 |
$28.53 |
$156.86K |
| 2025-12-09 |
Michaels Kimon |
EVP of Products and Solutions |
Gift (Given) |
5,070 |
- |
- |
| 2025-08-01 |
Strojwas Andrzej |
Chief Technology Officer |
RSU Award |
8,000 |
- |
- |
| 2025-08-01 |
Raza Adnan |
EVP, Finance and CFO |
RSU Award |
35,000 |
- |
- |
| 2025-07-01 |
Strojwas Andrzej |
Chief Technology Officer |
Tax Withholding of RSU |
2,497 |
$21.87 |
$54.61K |
| 2025-07-01 |
Raza Adnan |
EVP, Finance and CFO |
Tax Withholding of RSU |
4,921 |
$21.87 |
$107.62K |
| 2025-07-01 |
Michaels Kimon |
EVP of Products and Solutions |
Tax Withholding of RSU |
798 |
$21.87 |
$17.45K |
| 2025-07-01 |
Zhang Shuo |
Director |
RSU Award |
7,429 |
- |
- |
| 2025-07-01 |
Erba Nancy |
Director |
RSU Award |
7,429 |
- |
- |
| 2025-07-01 |
Li Ye Jane |
Director |
RSU Award |
7,429 |
- |
- |
| 2025-07-01 |
Chan Chi-foon |
Director |
RSU Award |
7,429 |
- |
- |
| 2025-07-01 |
Gustafson Michael B |
Director |
RSU Award |
7,429 |
- |
- |
| 2025-07-01 |
Bronson Joseph R |
Director |
RSU Award |
7,429 |
- |
- |
| 2025-05-13 |
Gustafson Michael B |
Director |
Informative Buy |
7,500 |
$19.45 |
$145.88K |
