Redmile Group, LLC - Mar 31, 2025 SCHEDULE 13G/A Report for Atara Biotherapeutics, Inc. Common Stock, par value $0.0001 per share (ATRA)

Filing Manager: Redmile Group, LLC
Reporting Manager: Redmile Group, LLC
Security: Atara Biotherapeutics, Inc. Common Stock, par value $0.0001 per share
Symbol: ATRA
Shares outstanding: 6.07M shares
Disclosed Ownership: 601K shares
Ownership: 9.9%
Form type: SCHEDULE 13G/A
Date filed: 5/15/2025, 09:00 PM
Date of event: Mar 31, 2025
Next filing: May 23, 2025
SEC: View on sec.gov

Reporting Managers (4)

Name	Ownership	Shares Owned	shared voting power	Signature	Title
Redmile Group, LLC	9.9%	601K	601K	/s/ Jeremy C. Green	Managing Member
Jeremy C. Green	9.9%	601K	601K	/s/ Jeremy C. Green	Jeremy C. Green
RedCo I, L.P.	5.8%	347K	347K	/s/ Jeremy C. Green	Managing Member of RedCo I (GP), LLC, general partner of RedCo I, L.P.
Redmile Biopharma Investments II, L.P.	5%	302K	302K	/s/ Jeremy C. Green	Managing Member of Redmile Biopharma Investments II (GP), LLC, general partner of Redmile Biopharma Investments II, L.P.

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