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person · Reporting owner

Lee John Tseng-Chung

Disclosed activity across 2 companies

Tapewire entity
23033
SEC CIK
0001414656

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
COGNEX CORPCGNX · Entity 3527DirectorFebruary 21, 2026February 24, 2026
MKS INCMKSI · Entity 110Director · President & CEOAugust 14, 2026August 17, 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.

COGNEX CORP

Report date February 21, 2026 · Filed February 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect24,820 Reported balance After 2026-02-21 transaction · row 1
1 source row

Row 1 · 2026-02-21 · Exercise / conversion · Acquired 2,913 · Balance 24,820

Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 · Expires 2026-02-21Direct0 Reported balance After 2026-02-21 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-02-21 · Exercise / conversion · Disposed 2,913 · Balance 0

F1: Each restricted stock unit represents a contingent right to receive one share of Cognex Corporation common stock.

F2: The restricted stock units vest approximately 20%, 30%, and 50% on the first, second, and third anniversaries of the grant date (February 21, 2023), respectively.

Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 · Expires 2027-02-17Direct4,817 Reported balance Holding disclosure · report date 2026-02-21 · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · Balance 4,817

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to receive one share of Cognex Corporation common stock.

F2: The restricted stock units vest approximately 20%, 30%, and 50% on the first, second, and third anniversaries of the grant date (February 21, 2023), respectively.

MKS INC

Report date August 14, 2026 · Filed August 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect134,776.2667 Reported balance After 2026-08-14 transaction · row 1
1 source row

Row 1 · 2026-08-14 · Sale · Disposed 10,000 · Balance 134,776.2667

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 20, 2026.

Filing footnotes · ownership attribution and instrument terms

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 20, 2026.

Transaction history

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 7,018 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 6

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,724.439

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 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 14,634 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 5

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,706.439

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 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,937 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 4

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,072.439

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 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 9,624 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,135.439

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 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 4,281.594 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,511.439

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 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 7,535.724 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,229.845

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 08, 2023 Filed Feb 9, 2023 20:30 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 43,902.44 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-004168 · form4.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,899.835

Underlying: Common Stock · 43,902.44 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 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.

F2 · 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
May 09, 2022 Filed May 10, 2022 17:52 UTC COGNEX CORP CGNX · Entity 3527 GrantRestricted Stock Unit · Derivative 3,697 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001806043-22-000043 · edgardoc.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,697

Underlying: Common Stock · 3,697 shares

Expires 2025-05-09

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Cognex Corporation common stock.

F2 · derivative.exercise_date: The restricted stock units vest approximately 20%, 30%, and 50% on the first, second, and third anniversaries of the grant date (May 9, 2022), respectively.

Read SEC document
April 29, 2022 Filed May 2, 2022 20:14 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 21,056.326 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-012828 · form4.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,997.395

Underlying: Common Stock · 21,056.326 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F2 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F2 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 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, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,937 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · derivative · entry 13

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,941.069

Underlying: Common Stock · 3,937 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 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.

F8 · 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, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 9,624 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · derivative · entry 12

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,878.069

Underlying: Common Stock · 9,624 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 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.

F7 · 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
February 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 4,281 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · derivative · entry 11

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,502.069

Underlying: Common Stock · 4,281 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 vest in three equal annual installments commencing on February 15, 2021, 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 vest in three equal annual installments commencing on February 15, 2021, 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, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 7,535 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · derivative · entry 10

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,783.069

Underlying: Common Stock · 7,535 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 were subject to performance criteria, the achievement of which was determined on January 25, 2021, and thereafter vest in three equal annual installments beginning on February 15, 2021, 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 were subject to performance criteria, the achievement of which was determined on January 25, 2021, and thereafter vest in three equal annual installments beginning on February 15, 2021, 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, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,754.821 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · derivative · entry 9

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,318.069

Underlying: Common Stock · 2,754.821 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 vest in three equal annual installments commencing on February 15, 2020, 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 vest in three equal annual installments commencing on February 15, 2020, 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, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,065.722 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · derivative · entry 8

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,072.89

Underlying: Common Stock · 3,065.722 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F3 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on January 27, 2020, and thereafter vest in three equal annual installments beginning on February 15, 2020, 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 were subject to performance criteria, the achievement of which was determined on January 27, 2020, and thereafter vest in three equal annual installments beginning on February 15, 2020, 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, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 13,839 $152.55 $2,111,139.45
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 7

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,516.221

F2 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.

Read SEC document
February 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,937 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 6

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,355.221

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 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 9,624 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 5

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,418.221

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 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 4,281 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 4

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,794.221

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 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 7,535 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,513.221

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 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 2,754.821 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,978.221

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 15, 2022 Filed Feb 16, 2022 21:33 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,065.722 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-005302 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,223.4

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
January 21, 2022 Filed Jan 24, 2022 21:27 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 28,873.403 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-22-001949 · form4.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,138.612

Underlying: Common Stock · 28,873.403 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, 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.

F2 · derivative.expiration_date: These RSUs were subject to performance criteria, 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
February 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 4,281 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 18

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,265.209

Underlying: Common Stock · 4,281 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, 2021, 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, 2021, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 7,534 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 17

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,546.209

Underlying: Common Stock · 7,534 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 January 25, 2021, and thereafter vest in three equal annual installments beginning on February 15, 2021, 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 January 25, 2021, and thereafter vest in three equal annual installments beginning on February 15, 2021, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,754.821 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 16

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,080.209

Underlying: Common Stock · 2,754.821 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, 2020, 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, 2020, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,065.722 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 15

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,835.03

Underlying: Common Stock · 3,065.722 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 January 27, 2020, and thereafter vest in three equal installments beginning on February 15, 2020, 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 January 27, 2020, and thereafter vest in three equal installments beginning on February 15, 2020, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 257.605 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 14

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,900.752

Underlying: Common Stock · 257.605 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, 2019, 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, 2019, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 263.037 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 13

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,158.357

Underlying: Common Stock · 263.037 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 28, 2019, and thereafter vest in three equal annual installments beginning on February 15, 2019, 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 28, 2019, and thereafter vest in three equal annual installments beginning on February 15, 2019, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 1,950.585 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 12

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,421.394

Underlying: Common Stock · 1,950.585 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, 2019, 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, 2019, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 1,989.597 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 11

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,371.979

Underlying: Common Stock · 1,989.597 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 28, 2019, and thereafter vest in three equal annual installments beginning on February 15, 2019, 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 28, 2019, and thereafter vest in three equal annual installments beginning on February 15, 2019, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 11,811.847 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · derivative · entry 10

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,361.576

Underlying: Common Stock · 11,811.847 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, 2022, 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, 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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 9,804 $172.20 $1,688,248.80
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 9

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,001.021

F2 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.

Read SEC document
February 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 4,281 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 8

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,805.021

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 7,534 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 7

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,524.021

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 2,754.821 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 6

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,990.021

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,065.722 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 5

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,235.2

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 257.605 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 4

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,169.478

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 263.037 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,911.873

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 1,950.585 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,648.836

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 16, 2021 Filed Feb 17, 2021 23:48 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 1,989.597 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-006345 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,698.251

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
January 25, 2021 Filed Jan 26, 2021 19:00 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 22,604.724 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-21-002514 · form4.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,549.729

Underlying: Common Stock · 22,604.724 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit 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, achievement of which was determined on January 25, 2021 and thereafter vest in three equal annual installments beginning on February 15, 2021, 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, achievement of which was determined on January 25, 2021 and thereafter vest in three equal annual installments beginning on February 15, 2021, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,754.821 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 18

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,945.005

Underlying: Common Stock · 2,754.821 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit 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, 2020, 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, 2020, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,065.722 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 17

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,699.826

Underlying: Common Stock · 3,065.722 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F8 · derivative.exercise_date: These RSUs are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2020, 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 are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2020, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 257 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 16

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,765.548

Underlying: Common Stock · 257 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit 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, 2019, 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, 2019, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 262 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 15

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,022.548

Underlying: Common Stock · 262 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F6 · derivative.exercise_date: These RSUs are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2019, 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 are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2019, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 1,950 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 14

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,284.548

Underlying: Common Stock · 1,950 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit 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, 2019, 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, 2019, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 1,989 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 13

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,234.548

Underlying: Common Stock · 1,989 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F6 · derivative.exercise_date: These RSUs are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2019, 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 are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2019, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,462.524 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 12

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,223.548

Underlying: Common Stock · 2,462.524 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit 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, 2018, 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, 2018, 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, 2020 Filed Feb 19, 2020 22:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,979.485 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-20-006520 · form4.xml · derivative · entry 11

Lee John Tseng-Chung · CIK 0001414656 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,686.072

Underlying: Common Stock · 2,979.485 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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F4 · derivative.exercise_date: These RSUs are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2018, 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 are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2018, 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.