# EDGAR Filing Document

**Accession Number:** 0001846253
**File Stem:** 0001846253-23-000030
**Filing Date:** 2023-3
**Character Count:** 8466
**Document Hash:** 152ef6f213ef3a0925d9f0a8f6372ac6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001846253-23-000030.hdr.sgml**: 20230331

**ACCESSION NUMBER**: 0001846253-23-000030

**CONFORMED SUBMISSION TYPE**: POS EX

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230331

**DATE AS OF CHANGE**: 20230330

**EFFECTIVENESS DATE**: 20230331

**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:** POS EX
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-268613
- **FILM NUMBER:** 23782130

**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

**As filed with the Securities and Exchange Commission on March 30, 2023** 

**Registration No. 333-268613** 

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**WASHINGTON, D.C. 20549** 

**Post-Effective Amendment No. 1**

**TO** 

**FORM S-1** 

**REGISTRATION STATEMENT** 

***UNDER***

***THE SECURITIES ACT OF 1933***

**OMNIAB, INC.**

**(Exact name of registrant as specified in its charter)** 

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| | | |
|:---|:---|:---|
| **Delaware** | **8731** | **98-1584818** |
| **(State or other jurisdiction of<br>incorporation or organization)** | **(Primary Standard Industrial**<br>**Classification Code Number)** | **(I.R.S. Employer<br>Identification No.)** |

---

**5980 Horton Street, Suite 600** 

**Emeryville, California 94608** 

**(510) 250-7800** 

**(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)** 

**Matthew W. Foehr** 

**President and Chief Executive Officer** 

**5980 Horton Street, Suite 600** 

**Emeryville, California 94608** 

**(510) 250-7800** 

**(Name, address, including zip code, and telephone number, including area code, of agent for service)** 

***Copies to:***

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| | |
|:---|:---|
| **Matthew T. Bush**<br>**R. Scott Shean**<br>**Latham & Watkins LLP**<br>**12670 High Bluff Drive**<br>**San Diego, California 92130**<br>**(858) 523-5400** | **Charles S. Berkman**<br>**Chief Legal Officer**<br>**OmniAb, Inc.**<br>**5980 Horton Street, Suite 600**<br>**Emeryville, California 94608**<br>**(510) 250-7800** |

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**Approximate date of commencement of proposed sale to the public:** 

**From time to time after the effective date of this Registration Statement.**

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☒ (333-268613)

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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

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| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☐ | Accelerated filer | ☐ |
| Non-accelerated filer | ☒ | Smaller reporting company | ☒ |
| | | Emerging growth company | ☒ |

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

**This Post-Effective Amendment No. 1 shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(d) under the Securities Act of 1933, as amended.**

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**EXPLANATORY NOTE**

This Post-Effective Amendment No. 1 (this "Amendment") to the Registration Statement on Form S-1 of OmniAb, Inc. (File No. 333-268613), initially filed on November 30, 2022 and declared effective by the Securities and Exchange Commission on February 10, 2023 (the "Registration Statement"), is being filed as an exhibit-only filing solely to file the consent of Ernst & Young LLP with respect to its report dated March 30, 2023 relating to the financial statements of OmniAb, Inc. contained in its Annual Report on Form 10-K for the year ended December 31, 2022 and included in the Prospectus Supplement No. 1 dated March 30, 2023 filed pursuant to Rule 424(b)(3), filed herewith as Exhibit 23.1 (the "Consent"). Accordingly, this Amendment consists only of the facing page, this explanatory note, Item 16 of Part II of the Registration Statement, the signature pages to the Registration Statement and the Consent. The prospectus and the balance of Part II of the Registration Statement are unchanged hereby and have been omitted.

**Part II** 

**INFORMATION NOT REQUIRED IN PROSPECTUS** 

**Item 16. Exhibits and Financial Statement Schedules.** 

(a) **Exhibits.** 

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| | |
|:---|:---|
| **<u>Exhibit No.</u>** | **<u>Description</u>** |
| <u>[23.1\*](exhibit231posteffectivecon.htm)</u> | Consent of Ernst & Young LLP. |

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\* Filed herewith.

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**SIGNATURES** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned hereunto duly authorized, on this 30th day of March, 2023.

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| | |
|:---|:---|
| **OmniAb, Inc.** | **OmniAb, Inc.** |
| By: | /s/ Matthew W. Foehr |
| Name: | Matthew W. Foehr |
| Title: | President and Chief Executive Officer |

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Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities held on the dates indicated.

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| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /s/ Matthew W. Foehr<br>Matthew W. Foehr | President, Chief Executive Officer and<br>Director<br>(Principal Executive Officer) | March 30, 2023 |
| /s/ Kurt A. Gustafson<br>Kurt A. Gustafson | Executive Vice President, Finance and<br>Chief Financial Officer<br>(Principal Financial Officer and<br>Principal Accounting Officer) | March 30, 2023 |
| \*<br>Carolyn R. Bertozzi, Ph.D. | Director | March 30, 2023 |
| \*<br>Sarah Boyce | Director | March 30, 2023 |
| \*<br>Jennifer Cochran, Ph.D. | Director | March 30, 2023 |
| \*<br>John L. Higgins | Director | March 30, 2023 |
| \*<br>Sunil Patel | Director | March 30, 2023 |
| \*<br>Joshua Tamaroff | Director | March 30, 2023 |

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| | | |
|:---|:---|:---|
| \* | By: | /s/ Matthew W. Foehr |
|  | Name: | Matthew W. Foehr |
|  | Title: | Attorney-in-fact |

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## Exhibit 23.1

**Exhibit 23.1**

**Consent of Independent Registered Public Accounting Firm**

We consent to the reference to our firm under the caption "Experts" and to the use of our report dated March 30, 2023, in post-effective Amendment No.1 to the Registration Statement (Form S-1 No. 333-268613) and related Prospectus of OmniAb, Inc. for the registration of up to 36,450,645 shares of its common stock, up to 11,345,489 warrants to purchase shares of its common stock and up to 19,012,156 shares of its common stock issuable upon exercise of warrants to purchase shares of its common stock.

/s/ Ernst & Young LLP

San Diego, California

March 30, 2023

<br>