# EDGAR Filing Document

**Accession Number:** 0001496671
**File Stem:** 9999999995-23-000597
**Filing Date:** 2023-3
**Character Count:** 1302
**Document Hash:** e3ef8f9a23292acbb5227ac0785b5e00
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-23-000597.hdr.sgml**: 20230320

**ACCESSION NUMBER**: 9999999995-23-000597

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230317

**DATE AS OF CHANGE**: 20230320

**EFFECTIVENESS DATE**: 20230317

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Calithera Biosciences, Inc.
- **CENTRAL INDEX KEY:** 0001496671
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 272366329
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-243731
- **FILM NUMBER:** 23744809

**BUSINESS ADDRESS:**
- **STREET 1:** 343 OYSTER POINT BLVD #200
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080
- **BUSINESS PHONE:** 650-870-1000

**MAIL ADDRESS:**
- **STREET 1:** 343 OYSTER POINT BLVD #200
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** March 17, 2023

**Accession Number:** 0001193125-23-070124

**Form Type:** POS AM

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**CIK:** 0001496671

**Company Name:** Calithera Biosciences, Inc.

**File Number:** 333-243731