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
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
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 * Bennett Oliver Christian 2. Issuer Name and Ticker or Trading Symbol Sientra, Inc. [ SIEN ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
General Counsel and VP
(Last)         (First)         (Middle)
420 S. FAIRVIEW AVENUE, SUITE 200
3. Date of Earliest Transaction (MM/DD/YYYY)
10/12/2020
(Street)
SANTA BARBARA, CA 93117
(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 (RSUs)  10/12/2020    A    50000 (1) A $0.00  78069  D   

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

Explanation of Responses:
(1)  The Restricted Stock Units (RSUs) shall vest quarterly in five equal installments commencing on the first business day of Q1 2021 and ending on the first business day of Q1 2022.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Bennett Oliver Christian
420 S. FAIRVIEW AVENUE, SUITE 200
SANTA BARBARA, CA 93117


General Counsel and VP

Signatures
/s/ Oliver Christian Bennett 10/14/2020
**Signature of Reporting Person Date
Sientra (NASDAQ:SIEN)
Historical Stock Chart
From Oct 2020 to Nov 2020 Click Here for more Sientra Charts.
Sientra (NASDAQ:SIEN)
Historical Stock Chart
From Nov 2019 to Nov 2020 Click Here for more Sientra Charts.