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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 12, 2018 Filed Feb 13, 2018 17:56 UTC MKS INC MKSI · Entity 110 OtherRestricted Stock Unit · Derivative 2,141.802 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-18-005394 · form4.xml · derivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,152.631

Underlying: Common Stock · 2,141.802 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.

F2 · kind: This transaction reflects the forfeiture of RSUs due to performance criteria.

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

F3 · 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.

F3 · 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
November 13, 2017 Filed Nov 14, 2017 17:23 UTC MKS INC MKSI · Entity 110 SaleCommon Stock 2,113 $104.02 $219,783.70
Disclosure

SEC source: 0001127602-17-031987 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0.772

F1 · price: This transaction was executed in multiple trades at prices ranging from $103.75 to $104.05. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
May 11, 2017 Filed May 12, 2017 20:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,557.874 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-017922 · form4.xml · derivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,294.433

Underlying: Common Stock · 3,557.874 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.

F3 · derivative.exercise_date: These RSUs originally were scheduled to vest in two equal installments based on the Company's achievement of certain performance criteria for the period ending June 30, 2017 and June 30, 2018. On May 10, 2017, the Compensation Committee accelerated in full the vesting of these RSUs to May 11, 2017 as a result of the Company's 100% achievement of the performance criteria.

F3 · derivative.expiration_date: These RSUs originally were scheduled to vest in two equal installments based on the Company's achievement of certain performance criteria for the period ending June 30, 2017 and June 30, 2018. On May 10, 2017, the Compensation Committee accelerated in full the vesting of these RSUs to May 11, 2017 as a result of the Company's 100% achievement of the performance criteria.

Read SEC document
May 11, 2017 Filed May 12, 2017 20:35 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 1,674 $80.50 $134,757.00
Disclosure

SEC source: 0001127602-17-017922 · form4.xml · nonDerivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,884.627

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

Read SEC document
May 11, 2017 Filed May 12, 2017 20:35 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,557.874 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-017922 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,558.627

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Read SEC document
February 22, 2017 Filed Feb 23, 2017 18:06 UTC MKS INC MKSI · Entity 110 SaleCommon Stock 14,734 $67.99 $1,001,764.66
Disclosure

SEC source: 0001127602-17-007958 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0.753

F1 · price: This transaction was executed in multiple trades at prices ranging from $67.96 to $68.05. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
February 15, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 4,013 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · derivative · entry 11

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,237.321

Underlying: Common Stock · 4,013 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 vest in three equal annual installments commencing on February 15, 2017, 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, 2017, 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, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 5,217 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · derivative · entry 10

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,852.307

Underlying: Common Stock · 5,217 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 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, 2017, 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 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, 2017, 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, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,073 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · derivative · entry 9

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,250.321

Underlying: Common Stock · 3,073 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 vest in three equal annual installments commencing on February 15, 2016, 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, 2016, 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, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 3,780 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · derivative · entry 8

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,069.307

Underlying: Common Stock · 3,780 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 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, 2016, 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 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, 2016, 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, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 7,385.524 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · derivative · entry 7

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,323.321

Underlying: Common Stock · 7,385.524 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.

F4 · 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.

F4 · 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 15, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 GrantRestricted Stock Unit · Derivative 11,078.287 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · derivative · entry 6

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,849.307

Underlying: Common Stock · 11,078.287 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.

F3 · 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.

F3 · 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
February 15, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 6,449 $67.70 $436,597.30
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · nonDerivative · entry 5

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,734.753

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, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 4,013 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · nonDerivative · entry 4

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,183.753

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Read SEC document
February 15, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 5,217 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · nonDerivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,170.753

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Read SEC document
February 15, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,073 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · nonDerivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,953.753

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Read SEC document
February 15, 2017 Filed Feb 16, 2017 22:03 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 3,780 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006642 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,880.753

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Read SEC document
February 13, 2017 Filed Feb 15, 2017 00:21 UTC MKS INC MKSI · Entity 110 OtherRestricted Stock Unit · Derivative 2,408.188 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006165 · form4.xml · derivative · entry 6

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,771.02

Underlying: Common Stock · 2,408.188 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.

F5 · kind: This transaction reflects the forfeiture of RSUs due to performance criteria.

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, 2017, 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, 2017, 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 10, 2017 Filed Feb 15, 2017 00:21 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 2,869.815 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006165 · form4.xml · derivative · entry 5

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,937.797

Underlying: Common Stock · 2,869.815 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: The RSUs vest in equal annual installments over three years from the respective original grant date.

F4 · derivative.expiration_date: The RSUs vest in equal annual installments over three years from the respective original grant date.

Read SEC document
February 10, 2017 Filed Feb 15, 2017 00:21 UTC MKS INC MKSI · Entity 110 Exercise / conversionRestricted Stock Unit · Derivative 4,305.223 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006165 · form4.xml · derivative · entry 4

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,179.208

Underlying: Common Stock · 4,305.223 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.

F3 · derivative.exercise_date: These RSUs are subject to the achievement of performance criteria determined in the first year of the grant and thereafter vest in equal annual installments over three years.

F3 · derivative.expiration_date: These RSUs are subject to the achievement of performance criteria determined in the first year of the grant and thereafter vest in equal annual installments over three years.

Read SEC document
February 10, 2017 Filed Feb 15, 2017 00:21 UTC MKS INC MKSI · Entity 110 Tax withholdingCommon Stock 2,377 $66.95 $159,140.15
Disclosure

SEC source: 0001127602-17-006165 · form4.xml · nonDerivative · entry 3

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,100.753

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

Read SEC document
February 10, 2017 Filed Feb 15, 2017 00:21 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 2,869.815 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006165 · form4.xml · nonDerivative · entry 2

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,477.753

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Read SEC document
February 10, 2017 Filed Feb 15, 2017 00:21 UTC MKS INC MKSI · Entity 110 Exercise / conversionCommon Stock 4,305.223 Not disclosed Not disclosed
Disclosure

SEC source: 0001127602-17-006165 · form4.xml · nonDerivative · entry 1

Lee John Tseng-Chung · CIK 0001414656 · Sr. VP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,607.938

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 represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

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.