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MKS INC
MKSINasdaqCIK: 0001049502
Recent Form 4 activity at MKS INC (MKSI) spans 50 filings across 16 insiders (all of them on the sell side). Purchases total $0 against $43.0M in sales — heavily weighted toward selling, for net sales of $43.0M. Lee John Tseng-Chung (President & CEO, Director) is the most active by dollar volume, and the single largest transaction was $8.5M by Lee John Tseng-Chung. All figures are drawn from official SEC Form 3, 4, and 5 disclosures and update as new filings arrive.
Total Volume
$54.5M
Purchases
$0
Sales
$43.0M
Unique Insiders
16
Recent Insider Trades
50 loaded
| Aug 18 | MKSI MKS INC | Donlan Renee Martel | EVP, GC & CCO | Award | $0 |
| Aug 17 | MKSI MKS INC | Lee John Tseng-Chung | President & CEO, Director | Sell | $3.0M |
| Aug 4 | MKSI MKS INC | Williams John Edward | EVP & GM, PSD | Sell | $131.8K |
| Jun 16 | MKSI MKS INC | Schreiner James Alan | EVP & COO | Sell | $1.2M |
| Jun 11 | MKSI MKS INC | Schreiner James Alan | EVP & COO | Sell | $247.9K |
| Jun 8 | MKSI MKS INC | McCarthy Michelle M | SVP & Chief Accounting Officer | Sell | $767.3K |
| Jun 2 | MKSI MKS INC | Mora Elizabeth | Director | Sell | $95.4K |
| Jun 2 | MKSI MKS INC | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Sell | $1.9M |
| Jun 4 | MKSI MKS INC | Donlan Renee Martel | EVP, GC & CCO | Other | $0 |
| May 28 | MKSI MKS INC | Donahue Joseph B | Director | Sell | $688.7K |
| May 28 | MKSI MKS INC | COLELLA GERALD G | Director | Sell | $6.7M |
| May 27 | MKSI MKS INC | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Sell | $826.3K |
| May 26 | MKSI MKS INC | Mayampurath Ramakumar | EVP & CFO | Sell | $2.8M |
| May 26 | MKSI MKS INC | Lee John Tseng-Chung | President & CEO, Director | Sell | $3.2M |
| May 19 | MKSI MKS INC | CANNONE PETER III | Director | Sell | $409.6K |
| May 15 | MKSI MKS INC | Moloney Jacqueline F | Director | Sell | $312.2K |
| May 14 | MKSI MKS INC | Moloney Jacqueline F | Director | Sell | $446.6K |
| May 12 | MKSI MKS INC | Moloney Jacqueline F | Director | Grant | $0 |
| May 12 | MKSI MKS INC | Batra Raj | Director | Grant | $0 |
| May 12 | MKSI MKS INC | CANNONE PETER III | Director | Grant | $0 |
| May 12 | MKSI MKS INC | COLELLA GERALD G | Director | Grant | $0 |
| May 12 | MKSI MKS INC | Taranto Eric Robert | EVP & GM, VSD | Sell | $911.3K |
| May 12 | MKSI MKS INC | Burke Kathleen Flaherty | EVP, GC & Secretary | Sell | $1.4M |
| May 12 | MKSI MKS INC | Donahue Joseph B | Director | Grant | $0 |
| May 12 | MKSI MKS INC | Mora Elizabeth | Director | Grant | $0 |
| May 12 | MKSI MKS INC | JABRE WISSAM G | Director | Grant | $0 |
| Apr 20 | MKSI MKS INC | Williams John Edward | EVP & GM, PSD | Exercise | $222.9K |
| Apr 16 | MKSI MKS INC | McCarthy Michelle M | SVP & Chief Accounting Officer | Exercise | $377.1K |
| Mar 13 | MKSI MKS INC | Moloney Jacqueline F | Director | Sell | $72.7K |
| Mar 9 | MKSI MKS INC | Taranto Eric Robert | EVP & GM, VSD | Sell | $1.0M |
| Mar 3 | MKSI MKS INC | Mora Elizabeth | Director | Sell | $71.8K |
| Feb 25 | MKSI MKS INC | Schreiner James Alan | EVP & COO | Sell | $1.0M |
| Feb 23 | MKSI MKS INC | Moloney Jacqueline F | Director | Sell | $205.2K |
| Feb 23 | MKSI MKS INC | Burke Kathleen Flaherty | EVP, GC & Secretary | Sell | $1.1M |
| Feb 23 | MKSI MKS INC | Taranto Eric Robert | EVP & GM, VSD | Sell | $359.6K |
| Feb 24 | MKSI MKS INC | COLELLA GERALD G | Director | Sell | $5.1M |
| Feb 23 | MKSI MKS INC | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Sell | $523.1K |
| Feb 23 | MKSI MKS INC | Lee John Tseng-Chung | President & CEO, Director | Sell | $7.7M |
| Feb 23 | MKSI MKS INC | Williams John Edward | EVP & GM, PSD | Sell | $523.7K |
| Feb 23 | MKSI MKS INC | McCarthy Michelle M | VP & Chief Accounting Officer | Sell | $366.5K |
| Feb 18 | MKSI MKS INC | Mayampurath Ramakumar | EVP & CFO | Exercise | $656.0K |
| Feb 18 | MKSI MKS INC | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Exercise | $1.1M |
| Feb 18 | MKSI MKS INC | Lee John Tseng-Chung | President & CEO, Director | Exercise | $8.5M |
| Feb 18 | MKSI MKS INC | Taranto Eric Robert | EVP & GM, VSD | Exercise | $707.1K |
| Feb 9 | MKSI MKS INC | Burke Kathleen Flaherty | EVP, GC & Secretary | Award | $0 |
| Feb 9 | MKSI MKS INC | Lee John Tseng-Chung | President & CEO, Director | Award | $0 |
| Feb 9 | MKSI MKS INC | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Award | $0 |
| Feb 9 | MKSI MKS INC | Mayampurath Ramakumar | EVP & CFO | Award | $0 |
| Feb 9 | MKSI MKS INC | Taranto Eric Robert | EVP & GM, VSD | Award | $0 |
| Feb 9 | MKSI MKS INC | Schreiner James Alan | EVP & COO | Award | $0 |
50 filings+