Lee John Tseng-Chung's Form 4 filing
MKS Inc (MKSI) · filed Feb 23, 2026
- Accession no.
- 0001049502-26-000030
- Filed
- Feb 23, 2026
- Trade date
- Feb 20, 2026
- Filing delay
- 3 days
- Rule 10b5-1 plan
- Not checked
This filing lists 4 non-derivative transactions. Open-market sales total $7.70M. It was filed 3 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Lee John Tseng-ChungCIK 0001414656 | Director, Officer (President & CEO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Feb 20, 2026 | Common Stock | SSaleDisposed | −13,310 | $256.05F1 | −$3,408,025.5 | 171,386.11 | Direct | |
| Feb 20, 2026 | Common Stock | SSaleDisposed | −12,812 | $256.93F2 | −$3,291,787.16 | 158,574.11 | Direct | |
| Feb 20, 2026 | Common Stock | SSaleDisposed | −1,988 | $257.81F3 | −$512,526.28 | 156,586.11 | Direct | |
| Feb 20, 2026 | Common Stock | SSaleDisposed | −1,890 | $259.70F4 | −$490,833 | 154,696.11 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F1
This transaction was executed in multiple trades at prices ranging from $255.425 to $256.415. 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.
Referenced by the price of 1 transaction in Table I.
- F2
This transaction was executed in multiple trades at prices ranging from $256.4275 to $257.275. 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.
Referenced by the price of 1 transaction in Table I.
- F3
This transaction was executed in multiple trades at prices ranging from $257.445 to $258.320. 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.
Referenced by the price of 1 transaction in Table I.
- F4
This transaction was executed in multiple trades at prices ranging from $259.170 to $259.920. 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.
Referenced by the price of 1 transaction in Table I.