Ownership Submission
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

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Reizman Elizabeth
   2. Issuer Name and Ticker or Trading Symbol
Bank of Marin Bancorp [BMRC] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
504 REDWOOD BOULEVARD, SUITE 100		 3. Date of Earliest Transaction (Month/Day/Year)
12/31/2017
(Street)

NOVATO, CA 94947		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
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 12/31/2017   J(1)   230.003 A $ 0 6,954.0173 I By ESOP
Common Stock 02/09/2018   J(2)   29.0101 A $ 0 6,983.0274 I By ESOP
Common Stock 05/11/2018   J(2)   28.4417 A $ 0 7,011.4691 I By ESOP
Common Stock 02/09/2018   J(2)   1.6718 A $ 0 399.4909 I By 401(k) Plan
Common Stock 05/11/2018   J(2)   1.6211 A $ 0 401.112 I By 401(k) Plan
Common Stock               10,977 I By Family Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 (Right to buy) $ 22.25               (3) 04/01/2019 Common Stock 700   700 D  
Stock Options (Right to buy) $ 33.1               (3) 04/01/2020 Common Stock 700   700 D  
Stock Options (Right to buy) $ 38               (3) 04/01/2021 Common Stock 700   700 D  
Stock Options (Right to buy) $ 38.18               (3) 04/02/2022 Common Stock 1,100   1,100 D  
Stock Options (Right to buy) $ 39.35               (3) 04/01/2023 Common Stock 700   700 D  
Stock Options (Right to Buy) $ 45.88               (3) 04/01/2024 Common Stock 1,550   1,550 D  
Stock Options (Right to buy) $ 50.75               (3) 03/02/2025 Common Stock 2,600   2,600 D  
Stock Options (Right to buy) $ 49.65               (4) 03/01/2026 Common Stock 2,750   2,750 D  
Stock Options (Right to buy) $ 69.6               (4) 03/01/2027 Common Stock 1,850   1,850 D  
Stock Options (Right to buy) $ 67.15               (4) 03/01/2028 Common Stock 2,060   2,060 D  
Stock Options (Right to buy) $ 67.15               (5) 03/01/2028 Common Stock 920   920 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Reizman Elizabeth
504 REDWOOD BOULEVARD, SUITE 100
NOVATO, CA 94947		       Executive Vice President  

Signatures

 Nancy R. Boatright, Attorney-in-Fact   07/24/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Represents the 2017 ESOP allocation reflected in reporting owner's account as of 12/31/2017.
(2) Exempt under Rule 16A-11 Additional shares resulting from dividend reinvestments
(3) Exercisable 20% per year beginning on first anniversary date of grant
(4) Exercisable 33% per year beginning on first anniversary date of grant
(5) Exercisable 33% immediately, then 33% per year on first anniversary date of grant.

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