person · Reporting owner
Burke Kathleen Flaherty
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MKS INCMKSI · Entity 110 | EVP, GC & Secretary | May 11, 2026 | May 12, 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 May 11, 2026 · Filed May 12, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 49,439.485 |
Reported balance
After 2026-05-11 transaction · row 1
1 source rowRow 1 · 2026-05-11 · Sale · Disposed 4,355 · Balance 49,439.485 F1: This transaction was executed in multiple trades at prices ranging from $319.715 to $320.670. 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. |
Filing footnotes · ownership attribution and instrument terms
F1: This transaction was executed in multiple trades at prices ranging from $319.715 to $320.670. 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.
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 |
|---|---|---|---|---|---|---|
| May 11, 2026 Filed May 12, 2026 19:09 UTC | MKS INC MKSI · Entity 110 | SaleCommon Stock | 4,355 | $319.94 | $1,393,316.93 |
DisclosureSEC source: 0001049502-26-000072 · form4.xml · nonDerivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 49,439.485 F1 · price: This transaction was executed in multiple trades at prices ranging from $319.715 to $320.670. 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 20, 2026 Filed Feb 23, 2026 19:28 UTC | MKS INC MKSI · Entity 110 | SaleCommon Stock | 4,254 | $250.00 | $1,063,500.00 |
DisclosureSEC source: 0001049502-26-000032 · form4.xml · nonDerivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 53,794.485 Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 2,493 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 14 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,128.986 Underlying: Common Stock · 2,493 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. F9 · 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. F9 · 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 2,336 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 13 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,621.986 Underlying: Common Stock · 2,336 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. F8 · 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. F8 · 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,576 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 12 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,957.986 Underlying: Common Stock · 1,576 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, 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 17, 2026 Filed Feb 18, 2026 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 562.54 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 11 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,533.986 Underlying: Common Stock · 562.54 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 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 17, 2026 Filed Feb 18, 2026 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,787.735 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 10 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,096.526 Underlying: Common Stock · 1,787.735 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, 2024, 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, 2024, 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 3,450.859 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 9 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 23,884.261 Underlying: Common Stock · 3,450.859 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 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, 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 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, 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 21:55 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 3,327.755 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · derivative · entry 8 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,335.12 Underlying: Common Stock · 3,327.755 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 21:55 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 5,317.798 | $260.74 | $1,386,562.65 |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 7 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 58,048.485 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 2,493 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 6 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 63,366.283 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 2,336 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 5 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,873.283 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,576 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 4 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 58,537.283 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 562.54 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 3 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,961.283 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,787.735 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 2 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,398.743 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 21:55 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 3,450.859 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000018 · form4.xml · nonDerivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 54,611.008 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 18:56 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 7,008.628 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-26-000006 · form4.xml · derivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 24,007.365 Underlying: Common Stock · 7,008.628 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 |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 341 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · derivative · entry 11 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,998.737 Underlying: Common Stock · 341 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: Portion of 2025 RSU Award accelerated to satisfy FICA taxes. F5 · derivative.expiration_date: Portion of 2025 RSU Award accelerated to satisfy FICA taxes. Read SEC document |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 144 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · derivative · entry 10 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,339.737 Underlying: Common Stock · 144 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: Portion of 2024 RSU Award accelerated to satisfy FICA taxes. F4 · derivative.expiration_date: Portion of 2024 RSU Award accelerated to satisfy FICA taxes. Read SEC document |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 82 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · derivative · entry 9 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,483.737 Underlying: Common Stock · 82 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: Portion of 2023 RSU Award accelerated to satisfy FICA taxes. F3 · derivative.expiration_date: Portion of 2023 RSU Award accelerated to satisfy FICA taxes. Read SEC document |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 52 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · derivative · entry 8 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,565.737 Underlying: Common Stock · 52 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: Portion of 2024 RSU Award accelerated to satisfy FICA taxes. F4 · derivative.expiration_date: Portion of 2024 RSU Award accelerated to satisfy FICA taxes. Read SEC document |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 158 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · derivative · entry 7 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,617.737 Underlying: Common Stock · 158 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: Portion of 2023 RSU Award accelerated to satisfy FICA taxes. F3 · derivative.expiration_date: Portion of 2023 RSU Award accelerated to satisfy FICA taxes. Read SEC document |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 777 | $143.71 | $111,662.67 |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · nonDerivative · entry 6 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,074.509 F2 · kind: Shares used to satisfy FICA taxes. Read SEC document |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 341 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · nonDerivative · entry 5 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,851.509 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 |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 144 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · nonDerivative · entry 4 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,510.509 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 |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 82 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · nonDerivative · entry 3 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,366.509 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 |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 52 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · nonDerivative · entry 2 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,284.509 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 |
| October 31, 2025 Filed Nov 4, 2025 22:01 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 158 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001049502-25-000037 · form4.xml · nonDerivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,232.509 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 18, 2025 Filed Feb 19, 2025 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,648 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 14 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,775.737 Underlying: Common Stock · 1,648 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. F9 · 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. F9 · 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 588.03 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 13 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,423.737 Underlying: Common Stock · 588.03 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. F8 · 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. F8 · 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,870 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 12 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 20,011.767 Underlying: Common Stock · 1,870 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, 2024, 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, 2024, 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 3,608 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 11 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,881.767 Underlying: Common Stock · 3,608 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 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, 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 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,645.076 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 10 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,489.767 Underlying: Common Stock · 1,645.076 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 2,286.756 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 9 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,134.843 Underlying: Common Stock · 2,286.756 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 23:24 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 7,822.13 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · derivative · entry 8 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,421.599 Underlying: Common Stock · 7,822.13 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 23:24 UTC | MKS INC MKSI · Entity 110 | Tax withholdingCommon Stock | 3,970 | $103.67 | $411,569.90 |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 7 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,922.422 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,648 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 6 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 54,892.422 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 588.03 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 5 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 53,244.422 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,870 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 4 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 52,656.392 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 3,608 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 3 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,786.392 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 1,645.076 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 2 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 47,178.392 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 23:24 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionCommon Stock | 2,286.756 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-005633 · form4.xml · nonDerivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 45,533.316 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 22:58 UTC | MKS INC MKSI · Entity 110 | GrantRestricted Stock Unit · Derivative | 1,765.543 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-25-004215 · form4.xml · derivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,599.469 Underlying: Common Stock · 1,765.543 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 |
| March 01, 2024 Filed Mar 4, 2024 16:39 UTC | MKS INC MKSI · Entity 110 | SaleCommon Stock | 7,411 | $122.89 | $910,737.79 |
DisclosureSEC source: 0001127602-24-007993 · form4.xml · nonDerivative · entry 1 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 42,999.021 Read SEC document |
| February 15, 2024 Filed Feb 16, 2024 20:05 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,869 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-005323 · form4.xml · derivative · entry 14 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,833.926 Underlying: Common Stock · 1,869 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. F9 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F9 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2024, 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 15, 2024 Filed Feb 16, 2024 20:05 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 3,608 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-005323 · form4.xml · derivative · entry 13 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,702.926 Underlying: Common Stock · 3,608 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. F8 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. F8 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, 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 15, 2024 Filed Feb 16, 2024 20:05 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,645 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-005323 · form4.xml · derivative · entry 12 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,310.926 Underlying: Common Stock · 1,645 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, 2023, 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, 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 15, 2024 Filed Feb 16, 2024 20:05 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 2,287 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-005323 · form4.xml · derivative · entry 11 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,955.926 Underlying: Common Stock · 2,287 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 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. F6 · 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 15, 2024 Filed Feb 16, 2024 20:05 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 1,016.78 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-005323 · form4.xml · derivative · entry 10 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,242.926 Underlying: Common Stock · 1,016.78 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, 2022, 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, 2022, 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 15, 2024 Filed Feb 16, 2024 20:05 UTC | MKS INC MKSI · Entity 110 | Exercise / conversionRestricted Stock Unit · Derivative | 2,032.561 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-24-005323 · form4.xml · derivative · entry 9 Burke Kathleen Flaherty · CIK 0001775435 · EVP, GC & Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,259.706 Underlying: Common Stock · 2,032.561 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 January 21, 2022, and thereafter vest in three equal annual installments beginning on February 15, 2022, 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 January 21, 2022, and thereafter vest in three equal annual installments beginning on February 15, 2022, 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.