# EDGAR Filing Document

**Accession Number:** 0001846253
**File Stem:** 9999999995-23-000369
**Filing Date:** 2023-2
**Character Count:** 1410
**Document Hash:** 4e564d0fc3cd200c4d05d12cecc56932
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-23-000369.hdr.sgml**: 20230213

**ACCESSION NUMBER**: 9999999995-23-000369

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230210

**DATE AS OF CHANGE**: 20230213

**EFFECTIVENESS DATE**: 20230210

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OmniAb, Inc.
- **CENTRAL INDEX KEY:** 0001846253
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-268613
- **FILM NUMBER:** 23614382

**BUSINESS ADDRESS:**
- **STREET 1:** 5980 HORTON STREET
- **STREET 2:** SUITE 600
- **CITY:** EMERYVILLE
- **STATE:** CA
- **ZIP:** 94608
- **BUSINESS PHONE:** 510-250-7800

**MAIL ADDRESS:**
- **STREET 1:** 5980 HORTON STREET
- **STREET 2:** SUITE 600
- **CITY:** EMERYVILLE
- **STATE:** CA
- **ZIP:** 94608

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Avista Public Acquisition Corp. II
- **DATE OF NAME CHANGE:** 20210212

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

## Notice of Effectiveness

**Date:** February 10, 2023

**Time:** 16:00:00

**Form Type:** S-1

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**CIK:** 0001846253

**Company Name:** OmniAb, Inc.

**File Number:** 333-268613