Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MKS INCMKSI · Entity 110 | EVP & GM, PSD | August 03, 2026 | August 04, 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.
MKS INC
Report date August 03, 2026 · Filed August 04, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 4,097.844 |
Reported balance
After 2026-08-03 transaction · row 1
1 source rowRow 1 · 2026-08-03 · Sale · Disposed 457 · Balance 4,097.844 F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
ELECTRO SCIENTIFIC INDUSTRIES INC
Report date February 01, 2019 · Filed February 01, 2019
Section 16 reporting ended · disclosed 2019-02-01. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 0 |
Ending reported balance
After 2019-02-01 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2019-02-01 · Disposition to issuer · Disposed 12,231 · Balance 45,900 F1: 12,231 shares of Issuer common stock were cancelled and disposed of at the effective time of the merger of EAS Equipment, Inc. ("Merger Sub"), a wholly owned subsidiary of MKS Instruments, Inc. ("MKS"), with and into the Issuer (the "Merger"), pursuant to that certain Agreement and Plan of Merger dated October 29, 2018, among the Issuer, MKS and Merger Sub (the "Merger Agreement") as a result of which Issuer became a wholly owned subsidiary of MKS, in exchange for a cash payment of $30.00 per share. Row 2 · 2019-02-01 · Disposition to issuer · Disposed 45,900 · Balance 0 F2: Restricted stock units representing the right to receive a total of 45,900 shares of Issuer's common stock were assumed by MKS at the effective time of the Merger and converted into restricted stock units representing the right to receive 17,447 shares of MKS's common stock, in accordance with the terms of the Merger Agreement. |
Filing footnotes · ownership attribution and instrument terms
F1: 12,231 shares of Issuer common stock were cancelled and disposed of at the effective time of the merger of EAS Equipment, Inc. ("Merger Sub"), a wholly owned subsidiary of MKS Instruments, Inc. ("MKS"), with and into the Issuer (the "Merger"), pursuant to that certain Agreement and Plan of Merger dated October 29, 2018, among the Issuer, MKS and Merger Sub (the "Merger Agreement") as a result of which Issuer became a wholly owned subsidiary of MKS, in exchange for a cash payment of $30.00 per share.
F2: Restricted stock units representing the right to receive a total of 45,900 shares of Issuer's common stock were assumed by MKS at the effective time of the Merger and converted into restricted stock units representing the right to receive 17,447 shares of MKS's common stock, in accordance with the terms of the Merger Agreement.
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 03, 2026 Filed Aug 4, 2026 16:21 UTC | MKS INC MKSI · Entity 110 | SaleCommon Stock | 457 | $288.31 | $131,757.67 |
DisclosureSEC source: 0001049502-26-000111 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 4,097.844 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026. Read SEC document |
| April 17, 2026 Filed Apr 20, 2026 15:31 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,740.714 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000061 · form4.xml · derivative · entry 3 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,812.003 Underlying: Common Stock · 1,740.714 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F3 · derivative.exercise_date: These RSUs vest in two equal annual installments commencing on April 17, 2025, provided that if, in any vesting year, April 17th is not a business day, such vesting shall occur on the next business day. F3 · derivative.expiration_date: These RSUs vest in two equal annual installments commencing on April 17, 2025, provided that if, in any vesting year, April 17th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| April 17, 2026 Filed Apr 20, 2026 15:31 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 825.969 | $269.89 | $222,920.77 |
DisclosureSEC source: 0001049502-26-000061 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,554.844 F2 · kind: These shares were withheld by MKS Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person. Read SEC document |
| April 17, 2026 Filed Apr 20, 2026 15:31 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,740.714 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000061 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,380.813 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. Read SEC document |
| February 20, 2026 Filed Feb 23, 2026 19:30 UTC | MKS INC MKSI · Entity 110 | SaleCommon Stock | 2,042.625 | $256.41 | $523,744.37 |
DisclosureSEC source: 0001049502-26-000034 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,640.099 F1 · price: This transaction was executed in multiple trades at prices ranging from $256.3902 to $257.150. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,106 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · derivative · entry 10 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,552.717 Underlying: Common Stock · 1,106 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F7 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F7 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 990.72 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · derivative · entry 9 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,658.717 Underlying: Common Stock · 990.72 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F6 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2026, and thereafter vest in three equal annual installments beginning on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F6 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2026, and thereafter vest in three equal annual installments beginning on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 841 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · derivative · entry 8 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,649.437 Underlying: Common Stock · 841 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F5 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F5 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 300.39 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · derivative · entry 7 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,490.437 Underlying: Common Stock · 300.39 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F4 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F4 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 1,473.72 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · derivative · entry 6 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,790.827 Underlying: Common Stock · 1,473.72 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F3 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2027, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F3 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2027, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 1,195.485 | $260.74 | $311,710.76 |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · nonDerivative · entry 5 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,682.724 F2 · kind: These shares were withheld by MKS Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,106 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · nonDerivative · entry 4 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,878.209 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 990.72 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · nonDerivative · entry 3 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,772.209 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 841 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,781.489 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 22:00 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 300.39 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000022 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,940.489 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. Read SEC document |
| February 08, 2026 Filed Feb 9, 2026 19:00 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 2,973.357 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000008 · form4.xml · derivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,317.107 Underlying: Common Stock · 2,973.357 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F2 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2026, and thereafter vest in three equal annual installments beginning on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F2 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2026, and thereafter vest in three equal annual installments beginning on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| August 15, 2025 Filed Aug 18, 2025 17:49 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 947.285 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000021 · form4.xml · derivative · entry 3 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,343.75 Underlying: Common Stock · 947.285 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. F3 · derivative.exercise_date: These RSUs vest in two equal annual installments commencing on August 15, 2024, provided that if, in any vesting year, August 15th is not a business day, such vesting shall occur on the next business day. F3 · derivative.expiration_date: These RSUs vest in two equal annual installments commencing on August 15, 2024, provided that if, in any vesting year, August 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| August 15, 2025 Filed Aug 18, 2025 17:49 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 308 | $104.73 | $32,256.84 |
DisclosureSEC source: 0001049502-25-000021 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,640.099 F2 · kind: These shares were withheld by MKS Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person. Read SEC document |
| August 15, 2025 Filed Aug 18, 2025 17:49 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 947.285 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000021 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,948.099 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc. Read SEC document |
| April 17, 2025 Filed Apr 18, 2025 15:04 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,740 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-012375 · form4.xml · derivative · entry 3 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,291.035 Underlying: Common Stock · 1,740 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F3 · derivative.exercise_date: These RSUs vest in two equal annual installments commencing on April 17, 2025, provided that if, in any vesting year, April 17th is not a business day, such vesting shall occur on the next business day. F3 · derivative.expiration_date: These RSUs vest in two equal annual installments commencing on April 17, 2025, provided that if, in any vesting year, April 17th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| April 17, 2025 Filed Apr 18, 2025 15:04 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 565 | $63.69 | $35,984.85 |
DisclosureSEC source: 0001127602-25-012375 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,000.814 F2 · kind: These shares were withheld by MKS Instruments, Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person. Read SEC document |
| April 17, 2025 Filed Apr 18, 2025 15:04 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,740 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-012375 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,565.814 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 841 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · derivative · entry 10 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,031.035 Underlying: Common Stock · 841 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F7 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F7 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 299.88 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · derivative · entry 9 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,872.035 Underlying: Common Stock · 299.88 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F6 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F6 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 658.031 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · derivative · entry 8 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,171.915 Underlying: Common Stock · 658.031 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F5 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F5 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 914.903 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · derivative · entry 7 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,829.946 Underlying: Common Stock · 914.903 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F4 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2023, and thereafter vest in three equal annual installments beginning on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F4 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2023, and thereafter vest in three equal annual installments beginning on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 3,318.479 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · derivative · entry 6 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,744.849 Underlying: Common Stock · 3,318.479 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F3 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F3 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2026, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 901 | $103.67 | $93,406.67 |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · nonDerivative · entry 5 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,825.814 F2 · kind: These shares were withheld by MKS Instruments, Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 841 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · nonDerivative · entry 4 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,726.814 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 299.88 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · nonDerivative · entry 3 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,885.814 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 658.031 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,585.934 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 23:47 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 914.903 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005655 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 927.903 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. Read SEC document |
| February 10, 2025 Filed Feb 11, 2025 23:14 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 901.165 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-004225 · form4.xml · derivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,426.37 Underlying: Common Stock · 901.165 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F2 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F2 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| August 16, 2024 Filed Aug 19, 2024 15:59 UTC | MKS INC MKSI · Entity 110 | SaleCommon Stock | 1,800 | $118.71 | $213,678.00 |
DisclosureSEC source: 0001127602-24-022410 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13 Read SEC document |
| August 15, 2024 Filed Aug 16, 2024 15:46 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 946 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-022323 · form4.xml · derivative · entry 3 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,525.205 Underlying: Common Stock · 946 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F2 · derivative.exercise_date: These RSUs vest in two equal annual installments commencing on August 15, 2024, provided that if, in any vesting year, August 15th is not a business day, such vesting shall occur on the next business day. F2 · derivative.expiration_date: These RSUs vest in two equal annual installments commencing on August 15, 2024, provided that if, in any vesting year, August 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| August 15, 2024 Filed Aug 16, 2024 15:46 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 307 | $113.91 | $34,970.37 |
DisclosureSEC source: 0001127602-24-022323 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,813 Read SEC document |
| August 15, 2024 Filed Aug 16, 2024 15:46 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 946 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-022323 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,120 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. Read SEC document |
| May 15, 2024 Filed May 16, 2024 19:32 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 2,524.272 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-015595 · form4.xml · derivative · entry 1 Williams John Edward · CIK 0001710173 · EVP & GM, PSD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,471.205 Underlying: Common Stock · 2,524.272 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. F2 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F2 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. Read SEC document |
| February 01, 2019 Filed Feb 1, 2019 17:44 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | Disposition to issuerCommon Stock | 45,900 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-19-002321 · form4.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · VICE PRESIDENT OF MARKETING 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · price: Restricted stock units representing the right to receive a total of 45,900 shares of Issuer's common stock were assumed by MKS at the effective time of the Merger and converted into restricted stock units representing the right to receive 17,447 shares of MKS's common stock, in accordance with the terms of the Merger Agreement. Read SEC document |
| February 01, 2019 Filed Feb 1, 2019 17:44 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | Disposition to issuerCommon Stock | 12,231 | $30.00 | $366,930.00 |
DisclosureSEC source: 0001140361-19-002321 · form4.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · VICE PRESIDENT OF MARKETING 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,900 F1 · price: 12,231 shares of Issuer common stock were cancelled and disposed of at the effective time of the merger of EAS Equipment, Inc. ("Merger Sub"), a wholly owned subsidiary of MKS Instruments, Inc. ("MKS"), with and into the Issuer (the "Merger"), pursuant to that certain Agreement and Plan of Merger dated October 29, 2018, among the Issuer, MKS and Merger Sub (the "Merger Agreement") as a result of which Issuer became a wholly owned subsidiary of MKS, in exchange for a cash payment of $30.00 per share. Read SEC document |
| May 11, 2018 Filed May 15, 2018 18:46 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | Tax withholdingCommon Stock | 401 | $19.52 | $7,827.52 |
DisclosureSEC source: 0000726514-18-000019 · edgardoc.xml · nonDerivative · entry 3 Williams John Edward · CIK 0001710173 · Vice President of Marketing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 58,131 F1 · kind: Payment of tax liability by delivering shares incident to the vesting of restricted stock units in accordance with Rule 16b-3. Read SEC document |
| May 09, 2018 Filed May 11, 2018 19:28 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | GrantCommon Stock | 7,300 | $0.00 | $0.00 |
DisclosureSEC source: 0000726514-18-000016 · edgardoc.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · Vice President of Marketing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 67,100 F1 · shares: Time-Based Restricted Stock Units vest 25% of the total shares on the first four anniversaries of the grant date. Read SEC document |
| February 28, 2018 Filed Mar 2, 2018 19:00 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | SaleCommon Stock | 5,000 | $18.05 | $90,273.50 |
DisclosureSEC source: 0000726514-18-000009 · edgardoc.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · Vice President of Marketing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 59,800 F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2017. F2 · price: The price indicated is the weighted average sale price for the shares sold. The individual sale prices for the shares indicated range from $17.89 to $18.12. Read SEC document |
| February 27, 2018 Filed May 15, 2018 18:46 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | Tax withholdingCommon Stock | 6,635 | $17.77 | $117,903.95 |
DisclosureSEC source: 0000726514-18-000019 · edgardoc.xml · nonDerivative · entry 2 Williams John Edward · CIK 0001710173 · Vice President of Marketing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 56,232 F1 · kind: Payment of tax liability by delivering shares incident to the vesting of restricted stock units in accordance with Rule 16b-3. Read SEC document |
| February 27, 2018 Filed May 15, 2018 18:46 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | Tax withholdingCommon Stock | 1,933 | $17.77 | $34,349.41 |
DisclosureSEC source: 0000726514-18-000019 · edgardoc.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · Vice President of Marketing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 62,867 F1 · kind: Payment of tax liability by delivering shares incident to the vesting of restricted stock units in accordance with Rule 16b-3. Read SEC document |
| May 11, 2017 Filed Sep 12, 2017 18:17 UTC | ELECTRO SCIENTIFIC INDUSTRIES INC ESIO · Entity 160720 | GrantCommon Stock | 4,800 | $0.00 | $0.00 |
DisclosureSEC source: 0000726514-17-000065 · edgardoc.xml · nonDerivative · entry 1 Williams John Edward · CIK 0001710173 · Vice President of Marketing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 64,800 F1 · shares: Time-Based Restricted Stock Units vest 25% of the total shares on the first four anniversaries of the grant date. 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.