UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G/A
Under the Securities Exchange Act of 1934
(Amendment No. 1)*
Chinook Therapeutics, Inc.
(Name of Issuer)
Common Stock, $0.0001 par value per share
(Title of Class of Securities)
16961L 106
(CUSIP Number)
December 31, 2021
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
☐ Rule 13d-1(b)
☒ Rule 13d-1(c)
☐ Rule 13d-1(d)
| * | The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. |
The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).
| 1 |
NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
ATP Life Science Ventures, L.P. | |||||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) ☐ (b) ☐
| |||||
| 3 | SEC USE ONLY
| |||||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands | |||||
| NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: |
5 | SOLE VOTING POWER
0 | ||||
| 6 | SHARED VOTING POWER
0 | |||||
| 7 | SOLE DISPOSITIVE POWER
0 | |||||
| 8 | SHARED DISPOSITIVE POWER
0 | |||||
| 9 |
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0 | |||||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
☐ | |||||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0% | |||||
| 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
PN | |||||
| 1 |
NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
ATP III GP, Ltd. | |||||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) ☐ (b) ☐
| |||||
| 3 | SEC USE ONLY
| |||||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands | |||||
| NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: |
5 | SOLE VOTING POWER
0 | ||||
| 6 | SHARED VOTING POWER
0 | |||||
| 7 | SOLE DISPOSITIVE POWER
0 | |||||
| 8 | SHARED DISPOSITIVE POWER
0 | |||||
| 9 |
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0 | |||||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
☐ | |||||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0% | |||||
| 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
CO | |||||
| 1 |
NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Seth L. Harrison | |||||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) ☐ (b) ☐
| |||||
| 3 | SEC USE ONLY
| |||||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
United States citizen | |||||
| NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: |
5 | SOLE VOTING POWER
0 | ||||
| 6 | SHARED VOTING POWER
0 | |||||
| 7 | SOLE DISPOSITIVE POWER
0 | |||||
| 8 | SHARED DISPOSITIVE POWER
0 | |||||
| 9 |
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0 | |||||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
☐ | |||||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0% | |||||
| 12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
IN | |||||
| Item 1(a). | Name of Issuer: |
Chinook Therapeutics, Inc.
| Item 1(b). | Address of Issuer’s Principal Executive Offices: |
1600 Fairview Avenue East, Suite 100, Seattle, WA 98102
| Item 2(a). | Names of Persons Filing: |
ATP Life Science Ventures, L.P. (“ATP Life Science Ventures”)
ATP III GP, Ltd (“ATP GP”)
Seth L. Harrison (together with ATP Life Science Ventures and ATP GP, the “Reporting Persons”)
| Item 2(b). | Address of Principal Business Office or, if None, Residence: |
The address of the principal place of business and principal office of each of the Reporting Persons is: 230 Park Avenue, 28th Floor, New York, NY 10169
| Item 2(c). | Citizenship: |
ATP Life Science Ventures is a Cayman Islands exempted limited partnership.
ATP GP is a Cayman Islands exempted company.
Seth Harrison is a citizen of the United States.
| Item 2(d). | Title of Class of Securities: |
Common Stock, $0.0001 par value per share (“Common Stock”)
| Item 2(e). | CUSIP Number: |
16961L 106.
| Item 3. | If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: |
Not applicable.
| Item 4. | Ownership. |
The information required by this item with respect to each Reporting Person is set forth in Rows 5 through 9 and 11 of the cover pages to this Schedule 13G.
| Item 5. | Ownership of Five Percent or Less of a Class. |
If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owner of more than five percent of the class of securities, check the following ☒.
| Item 6. | Ownership of More than Five Percent on Behalf of Another Person. |
Not applicable.
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. |
Not applicable.
| Item 8. | Identification and Classification of Members of the Group. |
Not applicable.
| Item 9. | Notice of Dissolution of Group. |
Not applicable.
| Item 10. | Certification. |
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.
Date: January 21, 2022
| ATP Life Science Ventures, L.P. | ||||
| By: | ATP III GP, Ltd. | |||
| General Partner | ||||
| By: | /s/ Seth L. Harrison | |||
| Name: | Seth L. Harrison | |||
| Title: | Director | |||
| ATP III GP, Ltd. | ||||
| By: | /s/ Seth L. Harrison | |||
| Name: | Seth L. Harrison | |||
| Title: | Director | |||
| /s/ Seth L. Harrison | ||||
| Seth L. Harrison | ||||