Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| PDF SOLUTIONS INCPDFS · Entity 4596 | Director | August 12, 2026 | August 13, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
PDF SOLUTIONS INC
Report date August 12, 2026 · Filed August 13, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 23,380 |
Reported balance
After 2026-08-12 transaction · row 1
1 source rowRow 1 · 2026-08-12 · Sale · Disposed 1,501 · Balance 23,380 |
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 12, 2026 Filed Aug 13, 2026 01:32 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | SaleCommon Stock | 1,501 | $51.47 | $77,256.47 |
DisclosureSEC source: 0001437749-26-027449 · rdgdoc.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 23,380 Read SEC document |
| July 01, 2026 Filed Jul 2, 2026 20:44 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 2,689 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001437749-26-022547 · rdgdoc.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 24,881 F1 · shares: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. RSU shall vest in four (4) equal installments of twenty-five percent (25%) of the Total RSUs, with vesting occurring on the first day of each calendar quarter following the Grant Effective Date until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · price: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. RSU shall vest in four (4) equal installments of twenty-five percent (25%) of the Total RSUs, with vesting occurring on the first day of each calendar quarter following the Grant Effective Date until fully vested, subject to the Recipient's continued service through each applicable vesting date. Read SEC document |
| July 01, 2025 Filed Jul 2, 2025 20:11 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 7,429 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001437749-25-021964 · rdgdoc.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,192 F1 · shares: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · price: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. Read SEC document |
| July 01, 2024 Filed Jul 2, 2024 12:05 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 4,382 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001415889-24-018716 · form4-07022024_120745.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,763 F1 · kind: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · shares: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · price: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation Program. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. Read SEC document |
| June 03, 2024 Filed Jun 4, 2024 22:07 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | SaleCommon Stock | 5,500 | $34.66 | $190,630.00 |
DisclosureSEC source: 0001415889-24-015448 · form4-06042024_100609.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,381 F1 · price: These shares were sold in multiple transactions at prices ranging from $34.49 to $34.81 per share, resulting in a weighted average sale price of $34.6561 per share. Read SEC document |
| August 18, 2023 Filed Aug 21, 2023 23:45 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | SaleCommon Stock | 3,047 | $33.75 | $102,836.25 |
DisclosureSEC source: 0001415889-23-012446 · form4-08212023_110801.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,881 Read SEC document |
| July 01, 2023 Filed Jul 5, 2023 18:41 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 3,354 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001415889-23-010698 · form4-07052023_060758.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,928 F1 · kind: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation P rogram. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · shares: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation P rogram. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · price: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation P rogram. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. Read SEC document |
| November 16, 2022 Filed Nov 17, 2022 21:04 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | SaleCommon Stock | 2,000 | $29.84 | $59,680.00 |
DisclosureSEC source: 0001415889-22-011486 · form4-11172022_091157.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,574 F1 · price: Average weighted price for shares disposed in the reported transaction. The shares were sold in multiple brokers' transaction at various market prices per share ranging between $29.83 and $29.86 Read SEC document |
| July 01, 2022 Filed Jul 6, 2022 00:16 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 7,212 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001415889-22-007428 · form4-07052022_050719.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 17,574 F1 · kind: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation P rogram. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · shares: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation P rogram. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. F1 · price: These shares represent an award of Restricted Stock Units (Total RSU) under the Company's Director Compensation P rogram. 1/12th of the Total RSU shall vest on the grant effective date and 1/12th of the Total RSU shall vest monthly thereafter until fully vested, subject to the Recipient's continued service through each applicable vesting date. Read SEC document |
| March 15, 2022 Filed Mar 17, 2022 17:29 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | SaleCommon Stock | 11,017 | $25.50 | $280,933.50 |
DisclosureSEC source: 0001415889-22-003093 · form4-03172022_100324.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,362 F1 · price: Average weighted price for shares disposed in the reported transaction. The shares were sold in multiple brokers' transaction at various market prices per share ranging between $25.2 and $25.68 Read SEC document |
| July 01, 2021 Filed Jul 2, 2021 20:57 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 4,688 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-21-088946 · tm2121343-3_4seq1.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,379 F1 · kind: These shares represent an award of restricted stock units granted under the Company's Director Compensation Program (Total Shares). 25% of the Total Shares vested on July 1, 2021, the Vesting Start Date, and 25% of the Total Shares shall vest on each anniversary of the Vesting Start Date thereafter until fully vested, subject to the recipient's continued service through each applicable vesting date. F1 · shares: These shares represent an award of restricted stock units granted under the Company's Director Compensation Program (Total Shares). 25% of the Total Shares vested on July 1, 2021, the Vesting Start Date, and 25% of the Total Shares shall vest on each anniversary of the Vesting Start Date thereafter until fully vested, subject to the recipient's continued service through each applicable vesting date. F1 · price: These shares represent an award of restricted stock units granted under the Company's Director Compensation Program (Total Shares). 25% of the Total Shares vested on July 1, 2021, the Vesting Start Date, and 25% of the Total Shares shall vest on each anniversary of the Vesting Start Date thereafter until fully vested, subject to the recipient's continued service through each applicable vesting date. Read SEC document |
| August 01, 2020 Filed Aug 4, 2020 23:17 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 4,688 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-20-016544 · rdgdoc.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,691 F1 · kind: These shares represent an award of restricted stock units granted under the Company's Director Compensation Program. 25% of the total shares vested on August 1, 2020 (Vesting Start Date) and 25% of the total shares shall vest on each anniversary of the Vesting Start Date thereafter until fully vested, provided that the reporting person continues to serve as a Director on the Board of Directors. F1 · shares: These shares represent an award of restricted stock units granted under the Company's Director Compensation Program. 25% of the total shares vested on August 1, 2020 (Vesting Start Date) and 25% of the total shares shall vest on each anniversary of the Vesting Start Date thereafter until fully vested, provided that the reporting person continues to serve as a Director on the Board of Directors. F1 · price: These shares represent an award of restricted stock units granted under the Company's Director Compensation Program. 25% of the total shares vested on August 1, 2020 (Vesting Start Date) and 25% of the total shares shall vest on each anniversary of the Vesting Start Date thereafter until fully vested, provided that the reporting person continues to serve as a Director on the Board of Directors. Read SEC document |
| August 01, 2019 Filed Aug 2, 2019 18:39 UTC | PDF SOLUTIONS INC PDFS · Entity 4596 | GrantCommon Stock | 12,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-015298 · rdgdoc.xml · nonDerivative · entry 1 Zhang Shuo · CIK 0001782026 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,003 F1 · kind: These shares represent an award of restricted stock units under the Company's Director Compensation Program. 12.5% of the total shares will vest every 6 months after the grant effective date until fully vested, provided that the reporting person continues to serve as a Director on the Board of Directors F1 · shares: These shares represent an award of restricted stock units under the Company's Director Compensation Program. 12.5% of the total shares will vest every 6 months after the grant effective date until fully vested, provided that the reporting person continues to serve as a Director on the Board of Directors F1 · price: These shares represent an award of restricted stock units under the Company's Director Compensation Program. 12.5% of the total shares will vest every 6 months after the grant effective date until fully vested, provided that the reporting person continues to serve as a Director on the Board of Directors Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.