David Philip Henry

MKSI

David Philip Henry serves as officer: EVP, Global Str Mktg & GM, MSD at MKS Inc. (MKSI). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$170.9K

Total Sells

6 trades

$3.03M

Net Position

Net Seller

$2.86M

Companies Traded

MKSI

Active Period

May 2021 – Feb 2026

7 total trades

Most Recent

Sell MKSI

Feb 23, 2026 · $523.1K

David Philip Henry's Insider Trading at MKS Inc. (MKSI)

Buys

1 · $170.9K

Sells

6 · $3.03M

Total Shares Bought

2,500

Total Shares Sold

15,381

MKSI Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Feb 23, 2026	Sell	2,000	$261.56	$523.1K	18,841
Feb 20, 2026	Sell	2,000	$261.56	$523.1K	0
Feb 17, 2026	Sell	4,097	$260.76	$1.07M	0
Sep 19, 2025	Sell	5,000	$130.00	$650.0K	15,571
Jul 7, 2025	Sell	2,000	$105.00	$210.0K	20,571
Nov 8, 2023	Buy	2,500	$68.34	$170.9K	11,073
May 21, 2021	Sell	284	$186.70	$53.0K	1,806