Director Jiang Wei awarded Waters (NYSE: WAT) stock and options

Rhea-AI Filing Summary

Waters Corporation director Jiang Wei reported receiving new equity awards. He acquired 23 shares of common stock at no cost, which are subject to restrictions that lapse in full on February 9, 2027. He was also granted a stock option for 57 shares that becomes fully exercisable on February 9, 2027. Both positions are held as direct ownership.

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

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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^*

Jiang Wei

(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)
02/25/2026

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	02/25/2026		A		23(1)	A	$0	2,941.27	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)	$319.44	02/25/2026		A		57(2)		02/09/2027	02/25/2036	Common Stock	57	$0	57	D

Explanation of Responses:

1. Represents shares of common stock subject to restrictions that lapse with respect to 100% of the shares on February 9, 2027.

2. All of the shares of common stock underlying this stock option will vest and become exercisable on February 9, 2027.

	/s/ Michael Lynn, attorney-in-fact for Wei Jiang	02/27/2026
	** 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 Jiang Wei report at WAT on this Form 4?

Jiang Wei reported receiving equity awards from Waters, including restricted common stock and a stock option. These are non-cash grants, increasing his direct ownership through additional shares and future option rights, rather than through open-market purchases or sales.

How many Waters (WAT) shares did Jiang Wei acquire in this filing?

Jiang Wei acquired 23 shares of Waters common stock as a grant and a stock option covering 57 shares. Both awards were reported as direct ownership and were granted at no cash cost per share, reflecting typical director equity compensation.

When do Jiang Wei’s new Waters (WAT) equity awards vest?

The 23 restricted common shares fully vest when restrictions lapse on February 9, 2027. The stock option for 57 common shares also vests and becomes fully exercisable on February 9, 2027, aligning both equity awards to the same vesting date.

Are Jiang Wei’s Waters (WAT) equity awards direct or indirect holdings?

Both the restricted shares and the stock option are reported as directly owned by Jiang Wei. The filing does not attribute them to any trust, partnership, or other entity, so they are treated as his personal direct holdings for reporting purposes.

Did Jiang Wei buy or sell any Waters (WAT) shares for cash in this Form 4?

No cash purchases or sales were reported. The Form 4 shows grant or award acquisitions only, with a transaction code of “A” and a price per share of 0.0000, indicating non-cash equity compensation rather than open-market trading activity.