Waters Corp (WAT) director reports 307 restricted shares and 828 options

Rhea-AI Filing Summary

Waters Corp director reports new stock and option awards. A director of Waters Corp (WAT) acquired 307 shares of common stock on 01/02/2026 at a price of $0, increasing direct beneficial ownership to 3,253.3 shares. These 307 shares are restricted and will fully vest on January 2, 2027.

The director also received a stock option for 828 shares of common stock with an exercise price of $381.96 per share, granted on 01/02/2026. All 828 option shares will vest and become exercisable on January 2, 2027 and will expire on January 2, 2036, if not exercised.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Huang Pearl S

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	828	$0.00	--
Grant/Award	Common Stock	307	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 828 shares (Direct); Common Stock — 3,253.3 shares (Direct)

Footnotes (1)

1. Represents shares of common stock subject to restrictions that lapse with respect to 100% of the shares on January 2, 2027. All of the shares of common stock underlying this stock option will vest and become exercisable on January 2, 2027.

Form 4 Insider Transactions: What Each Field Means →

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^*

Huang Pearl S

(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	3,253.3	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 Pearl S. Huang	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) disclose in this filing?

The filing shows a director of Waters Corp acquired 307 shares of common stock and received a stock option for 828 shares on 01/02/2026.

How many Waters Corp (WAT) shares does the director own after this transaction?

Following the reported transaction, the director beneficially owns 3,253.3 shares of Waters Corp common stock in direct form.

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

The director received a stock option for 828 shares of common stock with an exercise price of $381.96 per share, granted on 01/02/2026, expiring on 01/02/2036.

When do the restricted shares granted to the Waters Corp (WAT) director vest?

The 307 restricted shares of Waters Corp common stock will fully vest when restrictions lapse on January 2, 2027.

When do the Waters Corp (WAT) stock options become exercisable?

All 828 shares underlying the stock option will vest and become exercisable on January 2, 2027, according to the filing.

What is the expiration date of the Waters Corp (WAT) director stock options?

The stock option for 828 shares of Waters Corp common stock will expire on January 2, 2036 if not exercised earlier.