Key facts
- This page summarizes Peter Cannone III's Form 4 filing for MKS INC (MKSI).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 19 May 2026, 10:46.
Peter Cannone III - 18 May 2026 Form 4 Insider Report for MKS INC (MKSI)
- Reporting relationship
- Director
- Issuer ticker
- MKSI
- Reported as of
- 18 May 2026
- Net transaction value
- -$409,590
- SEC form
- 4
- Accepted by SEC
- 19 May 2026, 10:46:32 UTC
- Prior SEC filing
- 12 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ James Kruger, attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Peter Cannone III filed Form 4 for MKS INC (MKSI) on 19 May 2026.
Change
- Previous filing in this sequence was filed on 12 May 2026.
- Current net transaction value: -$409,590.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001276985
Primary reporting owner
CANNONE PETER III
- Relationship
- Director
- Address
- C/O MKS INC., 2 TECH DRIVE, ANDOVER
- Signature
- /s/ James Kruger, attorney-in-fact
- Signature date
- 19 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MKSI
transaction
Common Stock
Sale
- Transaction value
- $409,590
- Shares
- -1,350
- Change %
- -15%
- Price
- $303.40
- Shares after
- 7,794
- Date
- 18 May 2026
- Ownership
- Direct
* marks a reported price that did not pass the local price check.