<SEC-DOCUMENT>0002001011-24-000038.txt : 20240401
<SEC-HEADER>0002001011-24-000038.hdr.sgml : 20240401
<ACCEPTANCE-DATETIME>20240401212146
ACCESSION NUMBER:		0002001011-24-000038
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240401
DATE AS OF CHANGE:		20240401

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OmniAb, Inc.
		CENTRAL INDEX KEY:			0001846253
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-40720
		FILM NUMBER:		24811993

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GUSTAFSON KURT A
		CENTRAL INDEX KEY:			0001462354
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		11388 SORRENTO VALLEY ROAD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001462354</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001846253</issuerCik>
      <issuerName>OmniAb, Inc.</issuerName>
      <secFileNumber>001-40720</secFileNumber>
      <issuerAddress>
        <com:street1>5980 HORTON STREET</com:street1>
        <com:street2>SUITE 600</com:street2>
        <com:city>EMERYVILLE</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94608</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>510-250-7800</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>GUSTAFSON KURT A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES</name>
        <address>
          <com:street1>200 W CIVIC CENTER DR. 4TH FLOOR</com:street1>
          <com:city>SANDY</com:city>
          <com:stateOrCountry>UT</com:stateOrCountry>
          <com:zipCode>84070</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>11849</noOfUnitsSold>
      <aggregateMarketValue>64695.54</aggregateMarketValue>
      <noOfUnitsOutstanding>117145176</noOfUnitsOutstanding>
      <approxSaleDate>04/01/2024</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>04/01/2024</acquiredDate>
      <natureOfAcquisitionTransaction>RESTRICTED STOCK</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>23254</amountOfSecuritiesAcquired>
      <paymentDate>04/01/2024</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Represents a mandatory sale of shares to satisfy tax withholding obligations, upon the vesting and settlement of restricted stock units. The Reporting Person did not receive any proceeds from this mandatory sale.</remarks>
    <noticeSignature>
      <noticeDate>04/01/2024</noticeDate>
      <signature>/s/ Charles S. Berkman, as Attorney-In-Fact for Kurt A. Gustafson</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
