ANAPTYSBIO, INC — Director's Dealing 2021

Jan 14, 2021

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: ANAPTYSBIO, INC (ANAB)
CIK: 0001370053
Period of Report: 2021-01-04

Reporting Person: EcoR1 Capital, LLC (10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3813324	Indirect

Footnotes

F1: The Filers are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman, and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this report for itself, Mr. Nodelman and Qualified Fund. The Filers are filing this Form 3 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended.

F2: The Funds hold the securities reported herein directly for the benefit of their investors. Qualified Fund holds 3,212,344 shares of such securities. EcoR1 indirectly beneficially owns the securities reported herein as the investment adviser and general partner of the Funds. Mr. Nodelman indirectly beneficially owns the securities reported herein as the control person of EcoR1. The Filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.