Waters director Heather Knight receives 57.41 stock units

The common stock units are convertible into shares one-for-one upon distribution scheduled for January 1, 2027.

Rhea-AI Filing Summary

Waters Corporation director Heather Knight acquired 57.4100 common stock units on September 30, 2026, in lieu of cash payment of director fees under the company’s 1996 Non-Employee Director Deferred Compensation Plan. The units are convertible into Waters common shares on a one-for-one basis upon distribution on January 1, 2027, pursuant to an election Knight previously made. Her reported direct holdings following the transaction were 1,338 shares.

Insider Trade Summary

Grant/Award: 57.41 shares

Grant/Award 1 txn

Insider Knight Heather

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	57.41	$0.00	$0.00

Holdings After Transaction: Common Stock — 1,337.95 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Common stock units received: 57.4100 units Reported direct holdings after transaction: 1,338 shares Conversion ratio: One-for-one +1 more

4 metrics

Common stock units received 57.4100 units Received in lieu of cash director fees on September 30, 2026

Reported direct holdings after transaction 1,338 shares Following the September 30, 2026 transaction

Conversion ratio One-for-one Common stock units convertible into shares upon distribution

Distribution date January 1, 2027 Distribution pursuant to Knight’s previously made election

Key Terms

Deferred Compensation Plan, common stock units, one-for-one basis

3 terms

Deferred Compensation Plan financial

"1996 Non-Employee Director Deferred Compensation Plan"

A deferred compensation plan is an arrangement where an employer agrees to pay part of an employee’s pay or bonus at a later date instead of immediately, often to reduce current tax bills or to tie rewards to long-term performance. For investors it matters because these promises create future cash obligations and influence executive incentives and retention; they can affect a company’s reported liabilities, cash flow planning and the risk profile if the business faces financial trouble.

common stock units financial

"Common stock units are convertible into shares of the Issuer’s common stock"

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.

one-for-one basis technical

"on a one-for-one basis upon distribution"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many common stock units did WAT director Heather Knight receive?

Heather Knight received 57.4100 common stock units on September 30, 2026, in lieu of cash payment of director fees under Waters Corporation’s 1996 Non-Employee Director Deferred Compensation Plan.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 10/02/2026 - 05:11 PM Accepted by SEC EDGAR 10/02/2026 - 05:11 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)
09/30/2026

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	09/30/2026		A		57.41(1)	A	$0	1,337.95	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	10/02/2026
	** 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)