Waters Corp (WAT) director Mark Vergnano receives stock and option awards

Rhea-AI Filing Summary

Waters Corp (WAT) director equity grant reported

Director Mark Vergnano reported receiving 307 shares of Waters Corp common stock on January 2, 2026, at a stated price of $0. These shares are restricted and the filing states that restrictions lapse on January 2, 2027. Following this grant, he beneficially owns 4,517 common shares directly.

On the same date, he was also granted a stock option covering 828 shares of common stock with an exercise price of $381.96 per share. The option becomes fully exercisable on January 2, 2027 and expires on January 2, 2036. After this grant, he holds 828 derivative securities (stock options) directly.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Vergnano Mark

(Last) (First) (Middle)

34 MAPLE STREET

(Street)

MILFORD MA 01757

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
WATERS CORP /DE/ [ WAT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/02/2026		A		307(1)	A	$0	4,517	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$381.96	01/02/2026		A		828(2)		01/02/2027	01/02/2036	Common Stock	828	$0	828	D

Explanation of Responses:

1. Represents shares of common stock subject to restrictions that lapse with respect to 100% of the shares on January 2, 2027.

2. All of the shares of common stock underlying this stock option will vest and become exercisable on January 2, 2027.

	/s/ Michael Lynn, attorney-in-fact for Mark Vergnano	01/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Waters Corp (WAT) report for January 2, 2026?

The filing reports that director Mark Vergnano received 307 shares of Waters Corp common stock and a stock option for 828 shares on January 2, 2026.

What are the terms of the restricted stock granted to the Waters Corp (WAT) director?

The filing states that the 307 common shares are subject to restrictions that lapse with respect to 100% of the shares on January 2, 2027.

What are the key details of the stock option granted by Waters Corp (WAT)?

The director received a stock option on January 2, 2026 to buy 828 common shares at an exercise price of $381.96 per share. The option vests and becomes fully exercisable on January 2, 2027 and expires on January 2, 2036.

How many Waters Corp (WAT) shares does the director own after the reported transactions?

After the reported transactions, the director beneficially owns 4,517 shares of Waters Corp common stock directly, plus 828 stock options.

What is the relationship of the reporting person to Waters Corp (WAT)?

The filing identifies the reporting person as a Director of Waters Corp.

Were the equity awards to the Waters Corp (WAT) director reported as direct or indirect ownership?

Both the 4,517 common shares and the 828 stock options are reported as held under direct ownership.