FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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 *   van Elsas Andrea 2. Date of Event Requiring Statement (Month/Day/Year) 08/31/2017 3. Issuer Name and Ticker or Trading Symbol ADURO BIOTECH, INC. [ADRO] (Last) (First) (Middle) KLOOSTERSTRAAT 9 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Scientific Officer 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) OSS, P7 5349 AB 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 90,528 (1) D   Common Stock 37,300 (2) D   Common Stock 51,700 (3) D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	  (4)	11/09/2025	Common Stock	100,000	$ 29.88	D	Â
Employee Stock Option (right to buy)	  (5)	06/09/2026	Common Stock	28,100	$ 11.99	D	Â
Employee Stock Option (right to buy)	  (6)	12/11/2026	Common Stock	27,800	$ 11.15	D	Â
Employee Stock Option (right to buy)	  (7)	06/11/2027	Common Stock	27,975	$ 10.75	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
van Elsas Andrea KLOOSTERSTRAAT 9 OSS, P7 5349 AB	Â	Â	  Chief Scientific Officer	Â

Signatures

/s/ Jennifer Lew, Attorney-in-Fact		09/06/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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 shares acquired in connection with the Issuer's acquisition of BioNovion Holding B.V. The shares were granted to the Reporting Person to be held in escrow, subject to certain vesting and forfeiture provisions. The shares vest in equal quarterly installments over a four year period beginning October 30, 2015.
(2)	Represents grant of restricted stock units payable in common stock that vest in four equal annual installments from the vesting commencement date of September 12, 2016.
(3)	Represents grant of restricted stock units payable in common stock that vest in four equal annual installments from the vesting commencement date of February 23, 2017.
(4)	The shares subject to the Option vest over a four-year period as follows: 25% of the shares vest on the one year anniversary of the vesting commencement date of October 30, 2015 and thereafter the remaining shares vest in a series of equal monthly installments at a rate of one thirty-sixth (1/36th) per month.
(5)	The shares subject to the Option vest in a series of equal monthly installments at a rate of one forty-eighth (1/48th) per month upon the Reporting Person's completion of each month of service measured from June 10, 2016.
(6)	The shares subject to the Option vest in a series of equal monthly installments at a rate of one forty-eighth (1/48th) per month upon the Reporting Person's completion of each month of service measured from December 12, 2016.
(7)	The shares subject to the Option vest in a series of equal monthly installments at a rate of one forty-eighth (1/48th) per month upon the Reporting Person's completion of each month of service measured from June 12, 2017.

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