Sec Form 4 Filing - Sprink Eric M @ COASTAL FINANCIAL CORP - 2020-12-28

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 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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1. Name and Address of Reporting Person Sprink Eric M 2. Issuer Name and Ticker or Trading Symbol COASTAL FINANCIAL CORP [ CCB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) C/O 5415 EVERGREEN WAY 3. Date of Earliest Transaction (MM/DD/YY) 12/28/2020 (Street) EVERETT, WA98203 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12/28/2020 S 4,691 ( 1 ) ( 2 ) D $ 21.61 0 I By 401(k) Common Stock 32,762 ( 3 ) D Common Stock 400 I By custodian for child 1 Common Stock 400 I By custodian for child 2 Common Stock 400 I By custodian for child 3

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Sprink Eric M C/O 5415 EVERGREEN WAY EVERETT, WA98203 X President & CEO Signatures /s/ Melisa Nelson, as Attorney-in-fact 01/13/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Relates to an inadvertent sale of common stock by the Administrator of the Coastal Community Bank 401(k) Plan, resulting from an administrative oversight. ( 2 )This Form reflects increases/decreases in beneficial ownership resulting from unit accounting procedures currently in use by the Administrator of the Coastal Community Bank 401(k) Plan. The Coastal Community Bank Employee 401(k) Plan uses unit accounting and the number of shares that a participant is deemed to hold varies with the price of Coastal Financial Corporation. ( 3 )Includes 18,636 time-based restricted stock units (RSUs) pursuant to the Coastal Financial Corporation 2018 Omnibus Incentive Plan. The RSUs vest in ten approximately equal installments commencing on February 3, 2021. Each restricted stock unit represents the right to receive one share of common stock upon vesting.

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 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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