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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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 * Chen Yun-Lung 2. Issuer Name and Ticker or Trading Symbol AMBARELLA INC [ AMBA ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
VP, Business Development
(Last)          (First)          (Middle)
3101 JAY STREET		 3. Date of Earliest Transaction (MM/DD/YYYY)
3/15/2023
(Street)
SANTA CLARA, CA 95054
(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
Ordinary Shares  3/15/2023    M    7344  A  (1) 53685  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
Performance Stock Units   (1) 3/15/2023    M        8538    (2)  (2) Ordinary Shares  8538  $0.0  0  D   
Restricted Stock Units   (1) 3/15/2023    M        712    (3) 3/15/2023 (3) Ordinary Shares  712  $0.0  0  D   
Restricted Stock Units   (1) 3/15/2023    M        294    (4) 3/15/2024 (4) Ordinary Shares  294  $0.0  1174  D   
Restricted Stock Units   (1) 3/15/2023    M        380    (5) 3/15/2025 (5) Ordinary Shares  380  $0.0  3034  D   

Explanation of Responses:
(1)  Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.
(2)  On March 25, 2020, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2023, subject to continued service requirements through such date. In addition, the number of shares subject to the award could be increased or decreased by up to 100% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return over the period of February 1, 2020 through January 31, 2023 (the "TSR Period"). As a result of the Company's TSR performance over the TSR Period, the number of shares eligible to vest was 69.78% of the Target RSU Number.
(3)  The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2020.
(4)  The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2021.
(5)  The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2022.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Chen Yun-Lung
3101 JAY STREET
SANTA CLARA, CA 95054

VP, Business Development

Signatures
By: /s/ Michael Morehead, Attorney-in-Fact For: Yun-Lung Chen 3/17/2023
**Signature of Reporting Person Date

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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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