0000919574-25-006912.txt : 20251114 0000919574-25-006912.hdr.sgml : 20251114 20251114133304 ACCESSION NUMBER: 0000919574-25-006912 CONFORMED SUBMISSION TYPE: SCHEDULE 13G/A PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20251114 DATE AS OF CHANGE: 20251114 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Kezar Life Sciences, Inc. CENTRAL INDEX KEY: 0001645666 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 473366145 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SCHEDULE 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-90539 FILM NUMBER: 251484062 BUSINESS ADDRESS: STREET 1: 4000 SHORELINE COURT, SUITE 300 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 BUSINESS PHONE: 650-822-5600 MAIL ADDRESS: STREET 1: 4000 SHORELINE COURT, SUITE 300 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Avidity Partners Management LP CENTRAL INDEX KEY: 0001791827 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SCHEDULE 13G/A BUSINESS ADDRESS: STREET 1: 2828 N HARWOOD STREET STREET 2: SUITE 1220 CITY: DALLAS STATE: TX ZIP: 75201 BUSINESS PHONE: 214-550-1822 MAIL ADDRESS: STREET 1: 2828 N HARWOOD STREET STREET 2: SUITE 1220 CITY: DALLAS STATE: TX ZIP: 75201 SCHEDULE 13G/A 1 primary_doc.xml SCHEDULE 13G/A 0001791827 XXXXXXXX LIVE 4 Common Stock, par value $0.001 per share 09/30/2025 0001645666 Kezar Life Sciences, Inc. 49372L209 4000 Shoreline Court, Suite 300 South San Francisco CA 94080 Rule 13d-1(c) Avidity Partners Management LP b DE 0.00 0.00 0.00 0.00 0.00 N 0.0 IA PN Avidity Partners Management (GP) LLC b DE 0.00 0.00 0.00 0.00 0.00 N 0.0 OO Avidity Capital Partners Fund (GP) LP b DE 0.00 0.00 0.00 0.00 0.00 N 0.0 PN Avidity Capital Partners (GP) LLC b DE 0.00 0.00 0.00 0.00 0.00 N 0.0 OO Avidity Master Fund LP b E9 0.00 0.00 0.00 0.00 0.00 N 0.0 PN Michael Gregory b X1 0.00 0.00 0.00 0.00 0.00 N 0.0 HC IN Kezar Life Sciences, Inc. 4000 Shoreline Court, Suite 300, South San Francisco, California 94080, United States of America Avidity Partners Management LP Avidity Partners Management (GP) LLC Avidity Capital Partners Fund (GP) LP Avidity Capital Partners (GP) LLC Avidity Master Fund LP Michael Gregory Avidity Partners Management LP 2828 N Harwood Street, Suite 1220 Dallas, Texas 75201 United States of America Avidity Partners Management (GP) LLC 2828 N Harwood Street, Suite 1220 Dallas, Texas 75201 United States of America Avidity Capital Partners Fund (GP) LP 2828 N Harwood Street, Suite 1220 Dallas, Texas 75201 United States of America Avidity Capital Partners (GP) LLC 2828 N Harwood Street, Suite 1220 Dallas, Texas 75201 United States of America Avidity Master Fund LP 2828 N Harwood Street, Suite 1220 Dallas, Texas 75201 United States of America Michael Gregory c/o Avidity Partners Management LP 2828 N Harwood Street, Suite 1220 Dallas, Texas 75201 United States of America Avidity Partners Management LP - Delaware Avidity Partners Management (GP) LLC - Delaware Avidity Capital Partners Fund (GP) LP - Delaware Avidity Capital Partners (GP) LLC - Delaware Avidity Master Fund LP - Cayman Islands Michael Gregory - United States Y Avidity Partners Management LP - 0 Avidity Partners Management (GP) LLC - 0 Avidity Capital Partners Fund (GP) LP - 0 Avidity Capital Partners (GP) LLC - 0 Avidity Master Fund LP - 0 Michael Gregory - 0 Avidity Partners Management LP - 0.0% Avidity Partners Management (GP) LLC - 0.0% Avidity Capital Partners Fund (GP) LP - 0.0% Avidity Capital Partners (GP) LLC - 0.0% Avidity Master Fund LP - 0.0% Michael Gregory - 0.0% Avidity Partners Management LP - 0 Avidity Partners Management (GP) LLC - 0 Avidity Capital Partners Fund (GP) LP - 0 Avidity Capital Partners (GP) LLC - 0 Avidity Master Fund LP - 0 Michael Gregory - 0 Avidity Partners Management LP - 0 Avidity Partners Management (GP) LLC - 0 Avidity Capital Partners Fund (GP) LP - 0 Avidity Capital Partners (GP) LLC - 0 Avidity Master Fund LP - 0 Michael Gregory - 0 Avidity Partners Management LP - 0 Avidity Partners Management (GP) LLC - 0 Avidity Capital Partners Fund (GP) LP - 0 Avidity Capital Partners (GP) LLC - 0 Avidity Master Fund LP - 0 Michael Gregory - 0 Avidity Partners Management LP - 0 Avidity Partners Management (GP) LLC - 0 Avidity Capital Partners Fund (GP) LP - 0 Avidity Capital Partners (GP) LLC - 0 Avidity Master Fund LP - 0 Michael Gregory - 0 N Y Y N Please see Exhibit B attached hereto. Y Y N 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. [Exhibit A - Joint Filing Agreement] [Exhibit B - Control Person Identification] Avidity Partners Management LP By: Avidity Partners Management (GP) LLC, its general partner, By: /s/ Michael Gregory Michael Gregory / Managing Member 11/14/2025 Avidity Partners Management (GP) LLC /s/ Michael Gregory Michael Gregory / Managing Member 11/14/2025 Avidity Capital Partners Fund (GP) LP By: Avidity Capital Partners (GP) LLC, its general partner, By: /s/ Michael Gregory Michael Gregory / Managing Member 11/14/2025 Avidity Capital Partners (GP) LLC /s/ Michael Gregory Michael Gregory / Managing Member 11/14/2025 Avidity Master Fund LP By: Avidity Capital Partners Fund (GP) LP, its general partner, By: Avidity Capital Partners (GP) LLC, its general partner, By: /s/ Michael Gregory Michael Gregory / Managing Member 11/14/2025 Michael Gregory /s/ Michael Gregory Michael Gregory 11/14/2025 * Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. EX-35 2 d12040025_ex99-a.htm

 

Exhibit A

JOINT FILING AGREEMENT

The undersigned agree that this Schedule 13G Amendment No. 4 dated November 14, 2025 relating to the Common Stock, par value $0.001 per share, of Kezar Life Sciences, Inc. shall be filed on behalf of the undersigned.

 

AVIDITY PARTNERS MANAGEMENT LP

 By: Avidity Partners Management (GP) LLC, its general partner

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY PARTNERS MANAGEMENT (GP) LLC

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY CAPITAL PARTNERS FUND (GP) LP

 By: Avidity Capital Partners (GP) LLC, its general partner

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY CAPITAL PARTNERS (GP) LLC

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY MASTER FUND LP

 By: Avidity Capital Partners Fund (GP) LP, its general partner

By: Avidity Capital Partners (GP) LLC, its general partner

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

MICHAEL GREGORY

 

By: /s/ Michael Gregory

 

 EX-99 3 d12040025_ex99-b.htm

 

 

Exhibit B

CONTROL PERSON IDENTIFICATION

Avidity Partners Management LP is the relevant entity for which Michael Gregory may be considered a control person.