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 * REID CAROL L   2. Issuer Name and Ticker or Trading Symbol ENTERPRISE BANCORP INC /MA/ [EBTC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ENTERPRISE BANCORP, 222 MERRIMACK STREET 3. Date of Earliest Transaction (Month/Day/Year) 03/19/2019 (Street) LOWELL, MA 01852 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 08/20/2018   S   0.2276 D $ 36.62 29,545 (1) (2) (3) I By Trust Common Stock 03/19/2019   A   523 A $ 0 1,206.3986 (1) (4) (5) (6) (7) D

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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
REID CAROL L C/O ENTERPRISE BANCORP 222 MERRIMACK STREET LOWELL, MA 01852	X

Signatures

/s/ John P. Clancy, Jr. as attorney-in-fact for Carol L. Reid		03/21/2019
**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)	Report includes transfer of shares from direct ownership to indirect ownership by trust.
(2)	Sale of fractional shares by transfer agent in connection with transfer of shares of common stock from the Company's dividend reinvestment plan.
(3)	Includes 106.6881 shares acquired through the Issuer's dividend reinvestment plan on 6/1/2018.
(4)	Includes 2.4354 shares acquired through the Issuer's dividend reinvestment plan on 6/1/2018.
(5)	Includes 2.7635 shares acquired through the Issuer's dividend reinvestment plan on 9/4/2018.
(6)	Includes 2.826 shares acquired through the Issuer's dividend reinvestment plan on 12/3/2018.
(7)	Includes 3.3737 shares acquired through the Issuer's dividend reinvestment plan on 3/4/2019.

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