Statement of Changes in Beneficial Ownership (4)

FORM 4

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

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3235-0287

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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 * Bruss William F	2. Issuer Name and Ticker or Trading Symbol Waterstone Financial, Inc. [ WSBF ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) COO / General Counsel
(Last)          (First)          (Middle) 11200 W PLANK COURT	3. Date of Earliest Transaction (MM/DD/YYYY) 6/3/2021
(Street) WAUWATOSA, WI 53226 (City)        (State)        (Zip)	4. 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	6/3/2021		M		24331	A	$12.75	50457	D
Common Stock	6/3/2021		S		9344	D	$20.00	41113	D
Common Stock	6/3/2021		S		2147	D	$20.01	38966	D
Commons Stock	6/3/2021		S		100	D	$20.03	38866	D
Common Stock	6/3/2021		S		400	D	$20.035	38466	D
Common Stock	6/3/2021		S		125	D	$20.04	38341	D
Common Stock	6/3/2021		S		100	D	$20.045	38241	D
Common Stock	6/3/2021		S		597	D	$20.05	37644	D
Common Stock	6/3/2021		S		8370	D	$20.06	29274	D
Common Stock	6/3/2021		S		300	D	$20.065	28974	D
Common Stock	6/3/2021		S		1339	D	$20.07	27635	D
Common Stock	6/3/2021		S		200	D	$20.075	27435	D
Common Stock	6/3/2021		S		609	D	$20.08	26826	D
Common Stock	6/3/2021		S		100	D	$20.13	26726	D
Common Stock	6/3/2021		S		500	D	$20.18	26226	D
Common Stock	6/3/2021		S		100	D	$20.2	26126	D
Common Stock								47170	I	By ESOP
Common Stock								14397	I	By 401k
Common Stock								21	I	By Custodian

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: 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 Options	$12.75	6/3/2021		M			24331	3/4/2016	3/4/2025	Common Stock	24331	$0	0	D

Explanation of Responses:

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Bruss William F 11200 W PLANK COURT WAUWATOSA, WI 53226			COO / General Counsel

Signatures
/s/ Mark R. Gerke, Attorney-in-Fact		6/7/2021
**Signature of Reporting Person		Date