Insider files Form 144 to sell 1,453 MKSI shares

Eric Taranto reported a proposed sale of 1,453 common shares on 02/20/2026, with proceeds of $359,623.31 under a Form 144 notice.

Rhea-AI Filing Summary

Eric Taranto reported a proposed sale of 1,453 common shares on 02/20/2026, with proceeds of $359,623.31 under a Form 144 notice. The filing lists prior acquisitions of common stock via restricted stock vesting and ESPP purchases on 04/13/2021, 05/28/2021, 11/30/2021, 02/15/2022, and 02/15/2024, with amounts 442, 89, 68, 819, and 3,150 shares respectively.

Insights

Insider Transactions Analyst

Form 144 reports a proposed sale of 1,453 shares for $359,623.31 by an insider.

The notice documents a proposed sale of 1,453 common shares on 02/20/2026 with proceeds of $359,623.31. Form 144 is a regulatory notification of intent to sell restricted or control securities under Rule 144.

Prior acquisitions shown include restricted stock vesting and ESPP purchases (442; 89; 68; 819; 3,150 shares on the listed dates). Timing and method of actual market sales depend on compliance with Rule 144 conditions and transfer mechanics; subsequent filings would show completed transactions.

FAQ

What does the MKSI Form 144 filed by Eric Taranto report?

It reports a proposed sale of 1,453 common shares with proceeds of $359,623.31. The notice lists acquisition dates and amounts for prior restricted and ESPP shares held by the reporting person.

When was the reported transaction in the MKSI Form 144 dated?

The filing shows the proposed sale date as 02/20/2026. The document also lists acquisition dates of prior grants on 04/13/2021, 05/28/2021, 11/30/2021, 02/15/2022, and 02/15/2024.

How much cash is shown for the shares reported in the MKSI Form 144?

The proceeds reported are $359,623.31 for the 1,453 shares listed under Securities Sold During The Past 3 Months. The filing shows that dollar amount alongside the share count.

Do the acquisition entries on the MKSI Form 144 affect the reported sale amount?

The acquisition entries list prior grants and ESPP purchases (442; 89; 68; 819; 3,150 shares) and are presented as historical acquisitions. The sale amount is reported separately as 1,453 shares for $359,623.31.

Does the Form 144 indicate whether MKSI receives proceeds from the sale?

The filing reflects a sale by the reporting person; it does not state that the issuer (MKSI) receives proceeds. The entry shows proceeds tied to the insider's shares, not issuer proceeds.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/06/2026 - 01:09 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001842235
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MKS INC
SEC File Number	000-23621
Address of Issuer	2 TECH DRIVE ANDOVER MASSACHUSETTS 01810
Phone	978-645-5500
Name of Person for Whose Account the Securities are To Be Sold	Taranto Eric Robert
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	4568	1007317.82	67248357	03/06/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	04/13/2021	Restricted Stock Vesting	Issuer			442	04/13/2021	Compensation
Common	05/28/2021	ESPP Purchase	Issuer			89	05/28/2021	Cash
Common	11/30/2021	ESPP Purchase	Issuer			68	11/30/2021	Cash
Common	02/15/2022	Restricted Stock Vesting	Issuer			819	02/15/2022	Compensation
Common	02/15/2024	Restricted Stock Vesting	Issuer			3150	02/15/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Eric Taranto 2 Tech Drive Andover MA 01810	Common	02/20/2026	1453	359623.31

144: Remarks and Signature

Remarks
Date of Notice	03/06/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric Taranto
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)