Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Aleman Keeley A	2. Date of Event Requiring Statement (MM/DD/YYYY) 10/1/2019	3. Issuer Name and Ticker or Trading Symbol WATERS CORP /DE/ [WAT]
(Last)        (First)        (Middle) 34 MAPLE STREET	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                          _____ 10% Owner ___X___ Officer (give title below)        _____ Other (specify below) SVP General Counsel & Corp Sec /
(Street) MILFORD, MA 01757       (City)              (State)              (Zip)	5. If Amendment, Date Original Filed(MM/DD/YYYY)	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)
Common Stock (1)	1963	D
Common Stock	112	I	by Spouse

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: 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
Stock Option (Right to Buy)	2/17/2018 (2)	2/17/2027	Common Stock	5722	$154.33	D
Stock Option (Right to Buy)	2/23/2019 (3)	2/23/2028	Common Stock	4569	$208.47	D
Stock Option (Right to Buy)	2/26/2020 (4)	2/26/2029	Common Stock	4693	$238.52	D

Explanation of Responses:
(1)	Common stock and equity awards included in this Form 3 are issued and held in Ms. Aleman's married name.
(2)	These options vest 20% per annum for a 5 year period beginning on February 17, 2018.
(3)	These options vest 20% per annum for a 5 year period beginning on February 23, 2019.
(4)	These options vest 20% per annum for a 5 year period beginning February 26, 2020.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Aleman Keeley A 34 MAPLE STREET MILFORD, MA 01757			SVP General Counsel & Corp Sec

Signatures
/s/ Keeley A. Aleman		10/1/2019
**Signature of Reporting Person		Date