Henry David Philip

SEC source: 0001049502-26-000100 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,421.527

F1 · price: This transaction was executed in multiple trades at prices ranging from $314.2425 to $314.955. 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.

SEC source: 0001049502-26-000092 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,341.368

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026.

SEC source: 0001049502-26-000040 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,841.368

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 14

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,093.416

Underlying: Common Stock · 2,054 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.

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 13

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,147.416

Underlying: Common Stock · 1,840.64 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.

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 12

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,988.056

Underlying: Common Stock · 1,278 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.

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 11

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,266.056

Underlying: Common Stock · 456.45 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.

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 10

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,722.506

Underlying: Common Stock · 1,247.156 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.

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 9

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,969.662

Underlying: Common Stock · 2,405.571 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.

SEC source: 0001049502-26-000026 · form4.xml · derivative · entry 8

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,375.233

Underlying: Common Stock · 2,567.126 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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 7

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,841.368

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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 6

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,938.637

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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 5

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,884.637

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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 4

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,043.997

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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 3

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,765.997

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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 2

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,309.547

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.

SEC source: 0001049502-26-000026 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,062.391

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.

SEC source: 0001049502-26-000012 · form4.xml · derivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,808.107

Underlying: Common Stock · 5,521.949 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.

SEC source: 0001049502-25-000027 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Global Str Mktg & GM, MSD

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,571.18

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

SEC source: 0001127602-25-018975 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,571.18

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 14

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,286.158

Underlying: Common Stock · 1,278 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.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 13

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,564.158

Underlying: Common Stock · 455.94 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.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 12

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,020.098

Underlying: Common Stock · 1,246 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.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 11

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,266.098

Underlying: Common Stock · 2,406 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.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 10

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,672.098

Underlying: Common Stock · 1,099.369 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.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 9

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,771.467

Underlying: Common Stock · 1,528.342 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.

SEC source: 0001127602-25-005635 · form4.xml · derivative · entry 8

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,299.809

Underlying: Common Stock · 6,162.89 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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 7

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,419.093

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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 6

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,791.093

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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 5

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,513.093

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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 4

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,057.153

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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 3

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,811.153

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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 2

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,405.153

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.

SEC source: 0001127602-25-005635 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,305.784

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.

SEC source: 0001127602-25-004219 · form4.xml · derivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,136.919

Underlying: Common Stock · 1,369.196 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 14

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,767.723

Underlying: Common Stock · 1,246 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 13

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,013.723

Underlying: Common Stock · 2,405 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 12

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,418.723

Underlying: Common Stock · 1,100 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 11

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,518.723

Underlying: Common Stock · 1,528 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 10

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,046.723

Underlying: Common Stock · 581.16 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 9

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,627.883

Underlying: Common Stock · 1,162.321 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.

SEC source: 0001127602-24-005327 · form4.xml · derivative · entry 8

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,790.204

Underlying: Common Stock · 3,835.285 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, 2025, 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, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 7

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,529.903

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.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 6

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,221.903

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.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 5

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,975.903

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.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 4

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,570.903

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.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 3

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,470.903

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.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 2

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,942.903

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.

SEC source: 0001127602-24-005327 · form4.xml · nonDerivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,361.743

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 Instruments, Inc.

SEC source: 0001127602-24-003533 · form4.xml · derivative · entry 1

Henry David Philip · CIK 0001842459 · EVP, Operations & Corp Mktg

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,954.919

Underlying: Common Stock · 7,216.571 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 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.

F2 · 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.