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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 18, 2025 Filed Feb 19, 2025 23:21 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 14,041.44 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-25-005631 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,729.9897

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

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

Read SEC document
February 18, 2025 Filed Feb 20, 2025 22:32 UTC COGNEX CORP CGNX · Entity 3527 GrantRestricted Stock Unit · Derivative 8,324 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001721515-25-000020 · edgardoc.xml · derivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,324

Underlying: Common Stock · 8,324 shares

Expires 2026-02-18

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 100% on the first anniversary of the grant date (February 18, 2025).

Read SEC document
February 10, 2025 Filed Feb 11, 2025 22:55 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 12,106.58 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-25-004210 · form4.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,991.032

Underlying: Common Stock · 12,106.58 shares

Expires not disclosed

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

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

F2 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F2 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 10, 2025, and thereafter vest in three equal annual installments beginning on February 15, 2025, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
December 06, 2024 Filed Dec 10, 2024 20:06 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 984 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-028957 · form4.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,884.452

Underlying: Common Stock · 984 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: Portion of 2024 RSU Award accelerated to satisfy FICA taxes.

F4 · derivative.expiration_date: Portion of 2024 RSU Award accelerated to satisfy FICA taxes.

Read SEC document
December 06, 2024 Filed Dec 10, 2024 20:06 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,010 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-028957 · form4.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,868.452

Underlying: Common Stock · 2,010 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: Portion of 2023 RSU Award accelerated to satisfy FICA taxes.

F3 · derivative.expiration_date: Portion of 2023 RSU Award accelerated to satisfy FICA taxes.

Read SEC document
December 06, 2024 Filed Dec 10, 2024 20:06 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 2,994 $114.60 $343,112.40
Disclosure

SEC source: 0001127602-24-028957 · form4.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,688.5497

F2 · kind: Shares used to satisfy FICA taxes.

Read SEC document
December 06, 2024 Filed Dec 10, 2024 20:06 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 984 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-028957 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,682.5497

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
December 06, 2024 Filed Dec 10, 2024 20:06 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 2,010 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-028957 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,698.5497

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

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

Read SEC document
May 09, 2024 Filed May 10, 2024 20:06 UTC COGNEX CORP CGNX · Entity 3527 Exercise / conversionRestricted Stock Unit · Derivative 1,109 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001773704-24-000005 · edgardoc.xml · derivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,848

Underlying: Common Stock · 1,109 shares

Expires 2025-05-09

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 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
May 09, 2024 Filed May 10, 2024 20:06 UTC COGNEX CORP CGNX · Entity 3527 Exercise / conversionCommon Stock 1,109 $0.00 $0.00
Disclosure

SEC source: 0001773704-24-000005 · edgardoc.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,015

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.

Read SEC document
February 21, 2024 Filed Feb 23, 2024 00:16 UTC COGNEX CORP CGNX · Entity 3527 Exercise / conversionRestricted Stock Unit · Derivative 1,166 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001199723-24-000030 · edgardoc.xml · derivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,660

Underlying: Common Stock · 1,166 shares

Expires 2026-02-21

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.

F3 · derivative.exercise_date: 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.

Read SEC document
February 21, 2024 Filed Feb 23, 2024 00:16 UTC COGNEX CORP CGNX · Entity 3527 Exercise / conversionCommon Stock 1,166 $0.00 $0.00
Disclosure

SEC source: 0001199723-24-000030 · edgardoc.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,906

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.

Read SEC document
February 20, 2024 Filed Feb 23, 2024 00:16 UTC COGNEX CORP CGNX · Entity 3527 GrantRestricted Stock Unit · Derivative 6,973 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001199723-24-000030 · edgardoc.xml · derivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,973

Underlying: Common Stock · 6,973 shares

Expires 2025-02-20

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 100% on the first anniversary of the grant date (February 20, 2024).

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 7,653 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 14

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,878.452

Underlying: Common Stock · 7,653 shares

Expires not disclosed

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

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

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

F9 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F9 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 23,093 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 13

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,531.452

Underlying: Common Stock · 23,093 shares

Expires not disclosed

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

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

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

F8 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F8 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 6,734 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 12

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,624.452

Underlying: Common Stock · 6,734 shares

Expires not disclosed

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

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

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

F7 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F7 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 14,041 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 11

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,358.452

Underlying: Common Stock · 14,041 shares

Expires not disclosed

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

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

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

F6 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2023, and thereafter vest in three equal annual installments beginning on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F6 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2023, and thereafter vest in three equal annual installments beginning on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,777.847 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 10

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,399.452

Underlying: Common Stock · 3,777.847 shares

Expires not disclosed

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

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

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

F5 · derivative.exercise_date: These RSUs vest in three equal annual installments commencing on February 15, 2022, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F5 · derivative.expiration_date: These RSUs vest in three equal annual installments commencing on February 15, 2022, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 9,235.403 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 9

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,177.299

Underlying: Common Stock · 9,235.403 shares

Expires not disclosed

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

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

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

F4 · derivative.exercise_date: These RSUs were subject to performance criteria, the achievement of which was determined on January 21, 2022, and thereafter vest in three equal annual installments beginning on February 15, 2022, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

F4 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on January 21, 2022, and thereafter vest in three equal annual installments beginning on February 15, 2022, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 22,607.994 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · derivative · entry 8

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,412.702

Underlying: Common Stock · 22,607.994 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.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 30,231 $122.15 $3,692,716.65
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 7

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,441.0107

F2 · kind: These shares were withheld by MKS Instruments, Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 7,653 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,672.0107

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, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 23,093 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,019.0107

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, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 6,734 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,926.0107

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, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 14,041 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,192.0107

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, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,777.847 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,151.0107

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, 2024 Filed Feb 16, 2024 19:58 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 9,235.403 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-005319 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,373.1637

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 05, 2024 Filed Feb 6, 2024 19:39 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 69,279.091 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-24-003524 · form4.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,804.708

Underlying: Common Stock · 69,279.091 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.

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December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 970 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · derivative · entry 11

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,525.118

Underlying: Common Stock · 970 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: Portion of 2023 RSU Award accelerated to satisfy FICA taxes.

F5 · derivative.expiration_date: Portion of 2023 RSU Award accelerated to satisfy FICA taxes.

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December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 569 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · derivative · entry 10

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,495.118

Underlying: Common Stock · 569 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: Portion of 2022 RSU Award accelerated to satisfy FICA taxes.

F4 · derivative.expiration_date: Portion of 2022 RSU Award accelerated to satisfy FICA taxes.

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December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 160 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · derivative · entry 9

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,064.118

Underlying: Common Stock · 160 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: Portion of 2021 RSU Award accelerated to satisfy FICA taxes.

F3 · derivative.expiration_date: Portion of 2021 RSU Award accelerated to satisfy FICA taxes.

Read SEC document
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 1,186 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · derivative · entry 8

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,224.118

Underlying: Common Stock · 1,186 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: Portion of 2022 RSU Award accelerated to satisfy FICA taxes.

F4 · derivative.expiration_date: Portion of 2022 RSU Award accelerated to satisfy FICA taxes.

Read SEC document
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 390 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · derivative · entry 7

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,410.118

Underlying: Common Stock · 390 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: Portion of 2021 RSU Award accelerated to satisfy FICA taxes.

F3 · derivative.expiration_date: Portion of 2021 RSU Award accelerated to satisfy FICA taxes.

Read SEC document
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 3,275 $84.19 $275,722.25
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · nonDerivative · entry 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,138.607

F2 · kind: Shares used to satisfy FICA taxes.

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December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 970 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · nonDerivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,413.607

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
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 569 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,443.607

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
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 160 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,874.607

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
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 1,186 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,714.607

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
December 01, 2023 Filed Dec 5, 2023 19:36 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 390 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-028820 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,528.607

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

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

Read SEC document
May 09, 2023 Filed May 11, 2023 20:01 UTC COGNEX CORP CGNX · Entity 3527 Exercise / conversionRestricted Stock Unit · Derivative 740 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001806043-23-000003 · edgardoc.xml · derivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,957

Underlying: Common Stock · 740 shares

Expires 2025-05-09

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 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.

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May 09, 2023 Filed May 11, 2023 20:01 UTC COGNEX CORP CGNX · Entity 3527 Exercise / conversionCommon Stock 740 $0.00 $0.00
Disclosure

SEC source: 0001806043-23-000003 · edgardoc.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 740

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.

Read SEC document
February 21, 2023 Filed Feb 23, 2023 21:27 UTC COGNEX CORP CGNX · Entity 3527 GrantRestricted Stock Unit · Derivative 5,826 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001963684-23-000010 · edgardoc.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,826

Underlying: Common Stock · 5,826 shares

Expires 2026-02-21

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 (February 21, 2023), respectively.

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February 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 7,018 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 14

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,800.118

Underlying: Common Stock · 7,018 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, 2023, 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, 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, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 14,634 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 13

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,818.118

Underlying: Common Stock · 14,634 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 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.

F8 · derivative.expiration_date: These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2023, and thereafter vest in three equal annual installments beginning on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,937 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 12

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,452.118

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.

F7 · 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.

F7 · 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, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 9,624 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,389.118

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.

F6 · 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.

F6 · 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.

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

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,013.118

Underlying: Common Stock · 4,281.594 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, 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 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, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 7,535.724 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,294.712

Underlying: Common Stock · 7,535.724 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 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.

F4 · 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, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 23,930.601 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,830.436

Underlying: Common Stock · 23,930.601 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, 2024, 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, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.

Read SEC document
February 15, 2023 Filed Feb 16, 2023 19:52 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 20,862 $100.29 $2,092,249.98
Disclosure

SEC source: 0001127602-23-005502 · form4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,862.439

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

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.