Senior insider sale
President & COO at MKS INC — senior position signals high conviction
$3.15M
10K shares
What this filing means
LEE JOHN TSENG-CHUNG plans to sell 10K shares of MKS INC valued at approximately $3.15M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 5/22/2026ACC: 0001959173-26-003917
Officer· President & COO
Since Jan 2019
10K
Shares to sell
$3.15M
Approx. market value
10K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months2
Restricted Stock Vesting
Compensation
2/15/2026
7.34KRestricted Stock Vesting
Compensation
2/15/2021
2.66KTotal acquired10K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
2/15/2026 | Restricted Stock Vesting Compensation | 7.34K | — |
2/15/2021 | Restricted Stock Vesting Compensation | 2.66K | — |
| Total | 10K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
10K
Market value
$3.15M
5/22/2026
Total
Units
10K
Value
$3.15M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
5/22/2026 | 10K | $3.15M | NASDAQ | Planned |
| Total | 10K | $3.15M | ||