[Form 4] WATERS CORP /DE/ Insider Trading Activity

Rhea-AI Filing Summary

Waters Corp director Heather Knight reported a compensation-related equity award rather than a market trade. She acquired 63.03 common stock units of Waters common stock at a stated price of $0.00 per unit, bringing her direct holdings to 1,280.54 common stock units.

According to the disclosure, these common stock units were received in lieu of cash payment of director fees under the company’s 1996 Non-Employee Director Deferred Compensation Plan. The units are convertible into an equal number of Waters common shares upon distribution, which is scheduled to occur on January 1, 2027, based on a prior election.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Knight Heather

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	63.03	$0.00	--

Holdings After Transaction: Common Stock — 1,280.54 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Common stock units granted: 63.03 units Holdings after transaction: 1,280.54 units Unit price: $0.00 per unit +2 more

5 metrics

Common stock units granted 63.03 units Compensation award on June 30, 2026

Holdings after transaction 1,280.54 units Total direct common stock units following grant

Unit price $0.00 per unit Compensation grant, not market purchase

Conversion ratio 1 unit = 1 share Common stock units convertible into Waters common stock

Distribution date January 1, 2027 Scheduled conversion/distribution of common stock units

Key Terms

1996 Non-Employee Director Deferred Compensation Plan, common stock units, distribution

3 terms

1996 Non-Employee Director Deferred Compensation Plan financial

"pursuant to the Issuer's 1996 Non-Employee Director Deferred Compensation Plan"

common stock units financial

"Represents common stock units received in lieu of cash payment of director fees"

A common stock unit is a tradable ownership interest that represents one or more ordinary shares in a company, giving the holder a stake in profits, a claim on assets after creditors, and usually voting rights on corporate matters. For investors it matters because these units determine how much of the company you own, how much influence you have, and how returns or losses are shared—think of owning slices of a pie that can be increased or diluted by the company’s actions.

distribution financial

"convertible into shares ... upon distribution, which will occur on January 1, 2027"

A distribution is a payment or transfer of value from a company, fund, or trust to its shareholders or unit holders, commonly made in cash, additional shares, or other assets. Investors care because distributions provide income, reflect how much cash a business or fund can return to owners, can influence yield and taxable income, and often affect the share price much like a store handing out a portion of its profits to customers.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/02/2026 - 04:27 PM Accepted by SEC EDGAR 07/02/2026 - 04:27 PM Learn about SEC filing dates

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^*

Knight Heather

(Last) (First) (Middle)

34 MAPLE STREET

(Street)

MILFORD MASSACHUSETTS 01757

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026

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

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

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

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	06/30/2026		A		63.03(1)	A	$0	1,280.54	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

Explanation of Responses:

1. Represents common stock units received in lieu of cash payment of director fees pursuant to the Issuer's 1996 Non-Employee Director Deferred Compensation Plan. Common stock units are convertible into shares of the Issuer's common stock on a one-for-one basis upon distribution, which will occur on January 1, 2027, pursuant to an election previously made by the Reporting Person.

	/s/ Kimberly Larie, attorney-in-fact for Heather Knight	07/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)