Waters names Wu Tong as SEC-reporting insider

WATERS CORP (WAT) filed an initial ownership report for Wu Tong, who serves as SVP Waters Analytical Sciences.

Rhea-AI Filing Summary

WATERS CORP (WAT) filed an initial ownership report for Wu Tong, who serves as SVP Waters Analytical Sciences. This Form 3 establishes Wu Tong as a reporting officer for securities ownership disclosure purposes. The filing reports no transactions or specific holdings at this time and includes a Power of Attorney authorization.

FAQ

What does this Form 3 filing mean for WATERS CORP (WAT)?

It identifies Wu Tong, SVP Waters Analytical Sciences, as an officer subject to securities ownership reporting. The Form 3 is an initial statement of beneficial ownership and, in this case, reports no transactions or specific holdings.

Who is the reporting person in this WAT Form 3?

The reporting person is Wu Tong, who is an officer of WATERS CORP with the title SVP Waters Analytical Sciences. The filing records this status for SEC ownership reporting purposes.

Does this WAT Form 3 report any stock transactions?

No. The transaction summary shows no buy, sell, acquisition, or disposition transactions and no derivative transactions reported in this Form 3.

Are any share holdings disclosed for Wu Tong in this WAT Form 3?

No specific share holdings are listed. The filing’s transaction and holding summaries show zero entries, so it functions mainly to establish reporting status rather than disclose positions.

What is the significance of the Power of Attorney mentioned in the WAT Form 3?

The remark "Ex. 24 - Power of Attorney" indicates a Power of Attorney authorizing another party to sign SEC ownership reports on Wu Tong’s behalf, a common administrative arrangement for insider reporting.

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

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Available on EDGAR 08/31/2026 - 06:10 PM Accepted by SEC EDGAR 08/31/2026 - 06:09 PM Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Wu Tong (NMN)

(Last) (First) (Middle)

C/O WATERS CORPORATION

34 MAPLE STREET

(Street)

MILFORD MASSACHUSETTS 01757

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/21/2026

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

3a. Foreign Trading Symbol

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP Waters Analytical Sciences

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Ex. 24 - Power of Attorney

No securities are beneficially owned.

	/s/ Kimberly Larie, attorney-in-fact for Tong Wu	08/31/2026
	** 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 5 (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 3: SEC 1473 (03-26)