Director Share Dealings - MKS Inc (MKSI)

Director deals

Listed below are trades carried out by directors and other individuals which are required to be notified to the market.

≈ Figures for the value of trade may not add up due to rounding.

Recent deals

Date	Name and position (if held)	Deal type	Number of shares dealt	Price per share	Value of trade ≈	Shares remaining
1 September 2026	Elizabeth A. MoraIndependent Director	Sell Regular sell transaction (market)	300	$250.96	$75,288.00	18,845
14 August 2026	John Tseng-Chung LeePresident/CEO	Sell Regular sell transaction (market)	10,000	$302.01	$3,020,100.00	134,776
3 August 2026	John Edward WilliamsExecutive Vice President	Sell Regular sell transaction (market)	457	$288.31	$131,757.67	4,098
12 June 2026	James Alan (Jim) SchreinerCOO	Sell Regular sell transaction (market)	2,471	$345.52	$853,789.56	20,230
12 June 2026	James Alan (Jim) SchreinerCOO	Sell Regular sell transaction (market)	812	$346.41	$281,281.51	19,418
12 June 2026	James Alan (Jim) SchreinerCOO	Sell Regular sell transaction (market)	217	$347.00	$75,299.00	19,201
10 June 2026	James Alan (Jim) SchreinerCOO	Sell Regular sell transaction (market)	781	$317.42	$247,905.02	22,701
5 June 2026	Michelle M. McCarthyChief Accounting Officer	Sell Regular sell transaction (market)	2,434	$315.23	$767,269.82	2
1 June 2026	Elizabeth A. MoraIndependent Director	Sell Regular sell transaction (market)	300	$318.02	$95,406.00	19,145
1 June 2026	David Philip (Dave) HenryExecutive Vice President	Sell Regular sell transaction (market)	6,000	$314.43	$1,886,583.00	10,422

5 most significant deals

Date	Name and position (if held)	Deal type	Number of shares dealt	Price per share	Value of trade ≈	Shares remaining
17 February 2026	John Tseng-Chung LeePresident/CEO	Sell Tax related	32,548	$260.74	$8,486,565.52	184,696
20 February 2026	John Tseng-Chung LeePresident/CEO	Sell Option/Award related	13,310	$256.05	$3,408,076.08	171,386
20 February 2026	John Tseng-Chung LeePresident/CEO	Sell Option/Award related	12,812	$256.93	$3,291,803.82	158,574
22 May 2026	John Tseng-Chung LeePresident/CEO	Sell Regular sell transaction (market)	10,000	$315.48	$3,154,800.00	144,696
14 August 2026	John Tseng-Chung LeePresident/CEO	Sell Regular sell transaction (market)	10,000	$302.01	$3,020,100.00	134,776

Data policy - All information should be used for indicative purposes only. You should independently check data before making any investment decision. HL cannot guarantee that the data is accurate or complete, and accepts no responsibility for how it may be used. Director deal information provided by Factset.