PDF SOLUTIONS INC (PDFS)

Latest Insider Confidence Score

2026Q1

49.7
Bearish

Company insider confidence (by quarter)

2006Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Joseph David Chief Strategy Officer 264,174 May 18, 2010
Melman P Steven VP Investor Relations 156,878 May 19, 2009
Lanza Lucio Director 121,720 Jun 1, 2011
Michaels Kimon EVP of Products and Solutions 105,169 Feb 25, 2022
Strojwas Andrzej Chief Technology Officer 91,966 Aug 4, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Jan 1, 2026 Jan 5, 2026 Strojwas Andrzej Chief Technology Officer Sell 42.5 -2,762 -3.00% ✗ $78.8K
Jan 1, 2026 Jan 5, 2026 Raza Adnan CFO Sell 42.5 -5,498 -5.56% ✗ $156.9K
Dec 9, 2025 Dec 11, 2025 MICHAELS KIMON EVP of Products and Solutions Neutral 45.0 -5,070 -0.32% ✗ -
Aug 1, 2025 Aug 4, 2025 Raza Adnan CFO Neutral 90.0 +35,000 54.79% ✗ -
Aug 1, 2025 Aug 4, 2025 Strojwas Andrzej Chief Technology Officer Neutral 85.0 +8,000 9.53% ✗ -
Jul 1, 2025 Jul 3, 2025 MICHAELS KIMON EVP of Products and Solutions Sell 51.3 -798 -0.05% ✗ $17.5K
Jul 1, 2025 Jul 3, 2025 Raza Adnan CFO Sell 42.5 -4,921 -7.15% ✗ $107.6K
Jul 1, 2025 Jul 3, 2025 Strojwas Andrzej Chief Technology Officer Sell 42.5 -2,497 -2.90% ✗ $54.6K
Jul 1, 2025 Jul 2, 2025 BRONSON JOSEPH R Director Neutral 90.0 +7,429 24.09% ✗ -
Jul 1, 2025 Jul 2, 2025 CHAN CHI-FOON Director Neutral 90.0 +7,429 52.88% ✗ -
Jul 1, 2025 Jul 2, 2025 Erba Nancy Director Neutral 90.0 +7,429 22.05% ✗ -
Jul 1, 2025 Jul 2, 2025 GUSTAFSON MICHAEL B Director Neutral 90.0 +7,429 24.70% ✗ -
Jul 1, 2025 Jul 2, 2025 Li Ye Jane Director Neutral 90.0 +7,429 44.99% ✗ -
Jul 1, 2025 Jul 2, 2025 Zhang Shuo Director Neutral 90.0 +7,429 50.32% ✗ -
May 13, 2025 May 14, 2025 GUSTAFSON MICHAEL B Director Buy 95.0 +7,500 33.22% ✗ $145.9K
Feb 24, 2025 Feb 25, 2025 GUSTAFSON MICHAEL B Director Buy 95.0 +4,000 21.54% ✗ $92.2K
Feb 24, 2025 Feb 25, 2025 KIBARIAN JOHN KACHIG CEO Buy 87.5 +50,000 1.99% ✗ $1.1M
Nov 25, 2024 Feb 12, 2025 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Neutral 37.5 -8,500 -0.53% ✗ -
Jan 1, 2025 Jan 3, 2025 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Neutral 52.5 -870 -0.05% ✗ -
Jan 1, 2025 Jan 3, 2025 Raza Adnan CFO Neutral 47.5 -5,258 -7.18% ✗ -
Jan 1, 2025 Jan 3, 2025 Strojwas Andrzej CTO Neutral 47.5 -2,833 -3.20% ✗ -
Dec 17, 2024 Dec 19, 2024 Strojwas Andrzej CTO Sell 22.5 -6,253 -6.60% ✗ $190K
Dec 16, 2024 Dec 17, 2024 Strojwas Andrzej CTO Sell 22.5 -5,030 -5.04% ✗ $155.2K
Dec 11, 2024 Dec 12, 2024 Erba Nancy Director Sell 22.5 -2,000 -5.60% ✗ $61.6K
Aug 1, 2024 Aug 2, 2024 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -22 0.00% ✗ $728.9
Aug 1, 2024 Aug 2, 2024 Strojwas Andrzej CTO Sell 51.3 -357 -0.36% ✗ $11.8K
Jul 1, 2024 Jul 3, 2024 Erba Nancy Director Neutral 90.0 +4,382 14.00% ✗ -
Jul 1, 2024 Jul 3, 2024 Li Ye Jane Director Neutral 90.0 +4,382 36.12% ✗ -
Jul 1, 2024 Jul 2, 2024 Raza Adnan CFO Sell 95.0 +25,052 51.96% ✗ $176.8K
Jul 1, 2024 Jul 2, 2024 Strojwas Andrzej CTO Sell 90.0 +7,320 7.93% ✗ $95.8K
Jul 1, 2024 Jul 2, 2024 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 56.3 +1,743 0.11% ✗ $23.5K
Jul 1, 2024 Jul 2, 2024 Zhang Shuo Director Neutral 90.0 +4,382 42.21% ✗ -
Jul 1, 2024 Jul 2, 2024 GUSTAFSON MICHAEL B Director Neutral 90.0 +4,382 30.88% ✗ -
Jul 1, 2024 Jul 2, 2024 BRONSON JOSEPH R Director Neutral 90.0 +4,382 16.56% ✗ -
Jul 1, 2024 Jul 2, 2024 CHAN CHI-FOON Director Neutral 90.0 +4,382 45.32% ✗ -
Jun 3, 2024 Jun 4, 2024 Zhang Shuo Director Sell 22.5 -5,500 -34.63% ✗ $190.6K
May 15, 2024 May 17, 2024 Raza Adnan CFO Sell 20.0 -27,494 -36.31% ✗ $932K
Feb 23, 2024 Feb 26, 2024 Li Ye Jane Director Sell 20.0 -11,184 -47.97% ✗ $373.2K
Feb 21, 2024 Feb 22, 2024 BRONSON JOSEPH R Director Sell 20.0 -15,000 -36.18% ✗ $519.5K
Jan 1, 2024 Feb 2, 2024 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -25 0.00% ✗ $792.3
Feb 1, 2024 Feb 2, 2024 Raza Adnan CFO Sell 42.5 -5,353 -6.60% ✗ $169.6K
Feb 1, 2024 Feb 2, 2024 Strojwas Andrzej CTO Sell 51.3 -357 -0.39% ✗ $11.3K
Jan 1, 2024 Jan 3, 2024 CHAN CHI-FOON Director Neutral 90.0 +9,668 100.00% ✗ -
Jan 1, 2024 Jan 3, 2024 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 51.3 -745 -0.05% ✗ $23.9K
Jan 1, 2024 Jan 3, 2024 Strojwas Andrzej CTO Sell 42.5 -2,409 -2.54% ✗ $77.4K
Jan 1, 2024 Jan 3, 2024 Raza Adnan CFO Sell 42.5 -3,839 -4.55% ✗ $123.4K
Dec 18, 2023 CHAN CHI-FOON Director Neutral 52.5 - 0.00% ✗ -
Dec 12, 2023 Dec 14, 2023 GUSTAFSON MICHAEL B Director Sell 22.5 -5,750 -28.83% ✗ $177.8K
Dec 5, 2023 Dec 6, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Neutral 52.5 -1,653 -0.10% ✗ -
Nov 29, 2023 Nov 30, 2023 Erba Nancy Director Sell 22.5 -1,800 -5.44% ✗ $55K
Nov 27, 2023 Nov 28, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Neutral 52.5 -1,653 -0.10% ✗ -
Nov 16, 2023 Nov 17, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Neutral 45.0 -4,875 -0.31% ✗ -
Aug 18, 2023 Aug 21, 2023 Zhang Shuo Director Sell 22.5 -3,047 -16.10% ✗ $102.8K
Aug 1, 2023 Aug 3, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -22 0.00% ✗ $1K
Aug 1, 2023 Aug 3, 2023 Raza Adnan CFO Sell 40.0 -7,438 -8.10% ✗ $340.9K
Aug 1, 2023 Aug 3, 2023 Strojwas Andrzej CTO Sell 51.3 -357 -0.38% ✗ $16.4K
Jul 1, 2023 Jul 5, 2023 Strojwas Andrzej CTO Sell 90.0 +7,860 9.12% ✗ $96.5K
Jul 1, 2023 Jul 5, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 56.3 +1,903 0.12% ✗ $26.9K
Mar 3, 2023 Jul 5, 2023 Raza Adnan CFO Sell 95.0 +16,624 22.17% ✗ $152.3K
Jul 1, 2023 Jul 5, 2023 Li Ye Jane Director Neutral 90.0 +3,354 16.80% ✗ -
Jul 1, 2023 Jul 5, 2023 Zhang Shuo Director Neutral 90.0 +3,354 21.54% ✗ -
Jul 1, 2023 Jul 5, 2023 BRONSON JOSEPH R Director Neutral 85.0 +3,354 8.80% ✗ -
Jul 1, 2023 Jul 5, 2023 Erba Nancy Director Neutral 90.0 +3,354 11.27% ✗ -
Jul 1, 2023 Jul 5, 2023 GUSTAFSON MICHAEL B Director Neutral 90.0 +3,354 20.22% ✗ -
May 30, 2023 May 31, 2023 Strojwas Andrzej CTO Neutral 27.5 -1,000 -1.15% ✗ -
Mar 8, 2023 Mar 8, 2023 Strojwas Andrzej CTO Sell 22.5 -2,520 -2.81% ✗ $96.9K
Mar 3, 2023 Mar 6, 2023 Raza Adnan CFO Sell 20.0 -15,547 -17.17% ✗ $585.2K
Feb 28, 2023 Mar 2, 2023 GUSTAFSON MICHAEL B Director Sell 20.0 -13,316 -44.53% ✗ $496.2K
Feb 22, 2023 Feb 24, 2023 BRONSON JOSEPH R Director Sell 20.0 -12,500 -24.70% ✗ $455.8K
Feb 1, 2023 Feb 3, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -25 0.00% ✗ $816.3
Feb 1, 2023 Feb 3, 2023 Raza Adnan CFO Sell 42.5 -5,188 -5.42% ✗ $169.4K
Feb 1, 2023 Feb 3, 2023 Strojwas Andrzej CTO Sell 51.3 -357 -0.40% ✗ $11.7K
Nov 21, 2022 Feb 1, 2023 Strojwas Andrzej CTO Neutral 27.5 -1,400 -1.54% ✗ -
Jan 1, 2023 Jan 3, 2023 Strojwas Andrzej CTO Sell 42.5 -2,424 -2.60% ✗ $69.1K
Jan 1, 2023 Jan 3, 2023 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 51.3 -712 -0.04% ✗ $20.3K
Jan 1, 2023 Jan 3, 2023 Raza Adnan CFO Sell 42.5 -2,928 -3.00% ✗ $83.5K
Nov 30, 2022 Dec 2, 2022 Strojwas Andrzej CTO Sell 20.0 -19,926 -17.59% ✗ $617.6K
Nov 25, 2022 Nov 29, 2022 Raza Adnan CFO Sell 20.0 -12,224 -11.14% ✗ $369.4K
Nov 15, 2022 Nov 17, 2022 GUSTAFSON MICHAEL B Director Sell 22.5 -5,000 -14.33% ✗ $149.6K
Nov 16, 2022 Nov 17, 2022 Zhang Shuo Director Sell 22.5 -2,000 -11.38% ✗ $59.7K
Nov 1, 2022 Nov 2, 2022 Strojwas Andrzej CTO Sell 51.3 -499 -0.44% ✗ $12.1K
Aug 1, 2022 Aug 3, 2022 Raza Adnan CFO Sell 42.5 -5,460 -4.74% ✗ $147.9K
Aug 1, 2022 Aug 3, 2022 Strojwas Andrzej CTO Sell 52.5 -344 -0.30% ✗ $9.3K
Aug 1, 2022 Aug 3, 2022 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -22 0.00% ✗ $595.8
Jul 1, 2022 Jul 5, 2022 Strojwas Andrzej CTO Sell 86.3 +8,281 7.91% ✗ $35.7K
Jul 1, 2022 Jul 5, 2022 Raza Adnan CFO Sell 91.3 +28,703 33.28% ✗ $26.9K
Jul 1, 2022 Jul 5, 2022 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 60.0 +4,612 0.29% ✗ $8.1K
Jul 1, 2022 Jul 5, 2022 Zhang Shuo Director Neutral 90.0 +7,212 69.60% ✗ -
Jul 1, 2022 Jul 5, 2022 Li Ye Jane Director Neutral 90.0 +7,212 56.56% ✗ -
Jul 1, 2022 Jul 5, 2022 Iansiti Marco Director Neutral 90.0 +7,212 22.36% ✗ -
Jul 1, 2022 Jul 5, 2022 GUSTAFSON MICHAEL B Director Neutral 90.0 +7,212 26.04% ✗ -
Jul 1, 2022 Jul 5, 2022 Erba Nancy Director Neutral 90.0 +7,212 31.99% ✗ -
Jul 1, 2022 Jul 5, 2022 BRONSON JOSEPH R Director Neutral 90.0 +7,212 16.62% ✗ -
Jun 14, 2022 Jun 16, 2022 Raza Adnan CFO Sell 20.0 -39,387 -31.35% ✗ $796.6K
Jun 9, 2022 Jun 13, 2022 Raza Adnan CFO Sell 22.5 -6,156 -4.67% ✗ $134.7K
May 1, 2022 May 4, 2022 Strojwas Andrzej CTO Sell 51.3 -481 -0.46% ✗ $11.2K
Mar 15, 2022 Mar 17, 2022 Zhang Shuo Director Sell 20.0 -11,017 -51.53% ✗ $280.9K
Feb 23, 2022 Feb 25, 2022 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Neutral 50.0 -8,850 -0.55% ✗ -
Jan 1, 2021 Feb 25, 2022 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -100 -0.09% ✗ $2.2K
Feb 1, 2022 Feb 3, 2022 MICHAELS KIMON EVP OF PRODUCTS AND SOLUTIONS Sell 52.5 -25 0.00% ✗ $743.3