Last 12 months
Inside the activity.
0 purchase rows · 45 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 1 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 15 |
| Mar 2026 | 0 | 3 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 16 |
| Jun 2026 | 0 | 7 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 2 |
| Sep 2026 | 0 | 1 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
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 date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| February 10, 2017 Filed Feb 14, 2017 23:23 UTC |
Abrams John RSr. VP, Global Sales & Service
|
Exercise / conversionCommon Stock | 1,148.526 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-17-006135 · form4.xml · nonDerivative · entry 2 Abrams John R · CIK 0001600505 · Sr. VP, Global Sales & Service 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 7,813.602 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 14, 2017 23:23 UTC |
Abrams John RSr. VP, Global Sales & Service
|
Exercise / conversionCommon Stock | 1,722.289 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-17-006135 · form4.xml · nonDerivative · entry 1 Abrams John R · CIK 0001600505 · Sr. VP, Global Sales & Service 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,665.076 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 14, 2017 23:20 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
Exercise / conversionRestricted Stock Unit · Derivative | 8,035.683 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-17-006132 · form4.xml · derivative · entry 5 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 52,025.377 Underlying: Common Stock · 8,035.683 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 14, 2017 23:20 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
Exercise / conversionRestricted Stock Unit · Derivative | 12,053.235 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-17-006132 · form4.xml · derivative · entry 4 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 88,098.19 Underlying: Common Stock · 12,053.235 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 14, 2017 23:20 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
Tax withholdingCommon Stock | 7,296 | $66.95 | $488,467.20 |
DisclosureSEC source: 0001127602-17-006132 · form4.xml · nonDerivative · entry 3 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 48,192.984 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 14, 2017 23:20 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
Exercise / conversionCommon Stock | 8,035.683 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-17-006132 · form4.xml · nonDerivative · entry 2 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 55,488.984 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 14, 2017 23:20 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
Exercise / conversionCommon Stock | 12,053.235 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001127602-17-006132 · form4.xml · nonDerivative · entry 1 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 47,453.301 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 01, 2017 Filed Feb 2, 2017 22:31 UTC |
Mora ElizabethDirector
|
SaleCommon Stock | 200 | $66.60 | $13,320.00 |
DisclosureSEC source: 0001127602-17-003694 · form4.xml · nonDerivative · entry 1 Mora Elizabeth · CIK 0001548935 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,965.29 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. Read SEC document |
| February 01, 2017 Filed Feb 2, 2017 22:28 UTC |
Quirk Brian CharlesSr. VP, Global Operations
|
SaleCommon Stock | 1,000 | $66.60 | $66,600.00 |
DisclosureSEC source: 0001127602-17-003688 · form4.xml · nonDerivative · entry 1 Quirk Brian Charles · CIK 0001600515 · Sr. VP, Global Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,209.518 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. Read SEC document |
| December 02, 2016 Filed Dec 5, 2016 18:59 UTC |
Abrams John RSr. VP, Global Sales & Service
|
SaleCommon Stock | 302 | $54.05 | $16,323.10 |
DisclosureSEC source: 0001127602-16-069078 · form4.xml · nonDerivative · entry 1 Abrams John R · CIK 0001600505 · Sr. VP, Global Sales & Service 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,942.787 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. Read SEC document |
| December 01, 2016 Filed Dec 5, 2016 18:55 UTC |
Quirk Brian CharlesSr. VP, Global Operations
|
SaleCommon Stock | 1,000 | $57.40 | $57,400.00 |
DisclosureSEC source: 0001127602-16-069076 · form4.xml · nonDerivative · entry 1 Quirk Brian Charles · CIK 0001600515 · Sr. VP, Global Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,209.518 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. Read SEC document |
| November 30, 2016 Filed Jan 11, 2017 22:07 UTC |
ANDERSON ROBERT RDirector
|
GiftCommon Stock | 2,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-17-001558 · form4.xml · nonDerivative · entry 1 ANDERSON ROBERT R · CIK 0001202728 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Trust Disclosed balance after: 13,795.824 Read SEC document |
| November 22, 2016 Filed Nov 23, 2016 21:34 UTC |
ANDERSON ROBERT RDirector
|
SaleCommon Stock | 2,500 | $56.76 | $141,897.50 |
DisclosureSEC source: 0001127602-16-068350 · form4.xml · nonDerivative · entry 1 ANDERSON ROBERT R · CIK 0001202728 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,128.29 Read SEC document |
| November 17, 2016 Filed Nov 21, 2016 21:58 UTC |
Werth Dennis LSr. VP, Business Units
|
Exercise / conversionStock Appreciation Right · Derivative | 5,838 | $0.00 Strike: $20.32 | $0.00 |
DisclosureSEC source: 0001127602-16-067890 · form4.xml · derivative · entry 5 Werth Dennis L · CIK 0001550572 · Sr. VP, Business Units 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 5,838 shares Expires 2017-03-31 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 stock appreciation right became fully vested on March 31, 2013. Read SEC document |
| November 17, 2016 Filed Nov 21, 2016 21:58 UTC |
Werth Dennis LSr. VP, Business Units
|
Exercise / conversionCommon Stock | 5,838 | $20.32 | $118,628.16 |
DisclosureSEC source: 0001127602-16-067890 · form4.xml · nonDerivative · entry 4 Werth Dennis L · CIK 0001550572 · Sr. VP, Business Units 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,838 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 |
| November 17, 2016 Filed Nov 21, 2016 21:58 UTC |
Werth Dennis LSr. VP, Business Units
|
SaleCommon Stock | 2,333 | $56.41 | $131,604.53 |
DisclosureSEC source: 0001127602-16-067890 · form4.xml · nonDerivative · entry 3 Werth Dennis L · CIK 0001550572 · Sr. VP, Business Units 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Read SEC document |
| November 17, 2016 Filed Nov 21, 2016 21:58 UTC |
Werth Dennis LSr. VP, Business Units
|
Tax withholdingCommon Stock | 1,405 | $56.50 | $79,382.50 |
DisclosureSEC source: 0001127602-16-067890 · form4.xml · nonDerivative · entry 2 Werth Dennis L · CIK 0001550572 · Sr. VP, Business Units 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,333 F2 · kind: Shares have been withheld in satisfaction of reporting person's tax withholding obligations resulting from the exercise of stock appreciation rights. Read SEC document |
| November 17, 2016 Filed Nov 21, 2016 21:58 UTC |
Werth Dennis LSr. VP, Business Units
|
Disposition to issuerCommon Stock | 2,100 | $56.50 | $118,650.00 |
DisclosureSEC source: 0001127602-16-067890 · form4.xml · nonDerivative · entry 1 Werth Dennis L · CIK 0001550572 · Sr. VP, Business Units 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,738 F1 · kind: Reflects the disposition of shares to the issuer deemed to occur upon the exercise of a stock appreciation right. Read SEC document |
| November 16, 2016 Filed Nov 17, 2016 21:27 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
SaleCommon Stock | 2,500 | $55.86 | $139,652.50 |
DisclosureSEC source: 0001127602-16-067584 · form4.xml · nonDerivative · entry 1 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 35,400.066 F1 · price: This transaction was executed in multiple trades at prices ranging from $55.30 to $56.20. 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 |
| November 16, 2016 Filed Nov 17, 2016 21:30 UTC |
BAGSHAW SETH HVice President, CFO, Treasurer
|
SaleCommon Stock | 10,000 | $55.45 | $554,500.00 |
DisclosureSEC source: 0001127602-16-067587 · form4.xml · nonDerivative · entry 1 BAGSHAW SETH H · CIK 0001192439 · Vice President, CFO, Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 19,302.311 Read SEC document |
| November 01, 2016 Filed Nov 2, 2016 20:01 UTC |
Mora ElizabethDirector
|
SaleCommon Stock | 200 | $50.50 | $10,100.00 |
DisclosureSEC source: 0001127602-16-065854 · form4.xml · nonDerivative · entry 1 Mora Elizabeth · CIK 0001548935 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,165.29 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. Read SEC document |
| October 03, 2016 Filed Oct 4, 2016 17:57 UTC |
Quirk Brian CharlesSr. VP, Global Operations
|
SaleCommon Stock | 1,000 | $49.36 | $49,360.00 |
DisclosureSEC source: 0001127602-16-063933 · form4.xml · nonDerivative · entry 1 Quirk Brian Charles · CIK 0001600515 · Sr. VP, Global Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,209.518 F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person. Read SEC document |
| September 13, 2016 Filed Sep 14, 2016 17:56 UTC |
COLELLA GERALD GDirector · CEO, President, Director
|
SaleCommon Stock | 5,000 | $47.11 | $235,545.00 |
DisclosureSEC source: 0001127602-16-062505 · form4.xml · nonDerivative · entry 1 COLELLA GERARD G · CIK 0001256715 · Director · CEO, President, Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 37,900.066 F1 · price: This transaction was executed in multiple trades at prices ranging from $46.95 to $47.37. 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.