[8-K] OmniAb, Inc. Reports Material Event

Rhea-AI Filing Summary

OmniAb, Inc. reported that it issued a press release announcing financial results for the three and nine months ended September 30, 2025. The press release was furnished as Exhibit 99.1 and is not deemed “filed” under the Exchange Act.

The company’s common stock trades as OABI on the Nasdaq Global Market, and its warrants trade as OABIW on the Nasdaq Capital Market.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

______________

FORM 8-K

______________

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 4, 2025

OMNIAB, INC.

(Exact Name of Registrant as Specified in Its Charter)

Delaware			001-40720			98-1584818
(State or other jurisdiction of incorporation or organization)			(Commission File Number)			(I.R.S. Employer Identification No.)

5980 Horton Street, Suite 600
Emeryville
CA			94608
(Address of principal executive offices)			(Zip Code)

(510) 250-7800

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class			Trading Symbol(s)			Name of each exchange on which registered
Common Stock, par value $0.0001 per share			OABI			The Nasdaq Global Market
Warrants to purchase common stock			OABIW			The Nasdaq Capital Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☑

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 13(a) of the Exchange Act. o

Item 2.02 Results of Operations and Financial Condition.

On November 4, 2025, OmniAb, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2025. A copy of this press release is furnished herewith as Exhibit 99.1 to this report.

In accordance with General Instruction B.2. of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d)Exhibits.

Exhibit No.			Description
99.1			Press release dated November 4, 2025
104			Cover Page Interactive Data File (embedded within Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			OMNIAB, INC.
Date: November 4, 2025			By:			/s/ Kurt Gustafson
			Name: Kurt Gustafson
			Title: Executive Vice President, Finance and Chief Financial Officer (Principal Financial and Accounting Officer)

FAQ

What did OmniAb (OABI) announce in this filing?

OmniAb furnished a press release announcing financial results for the three and nine months ended September 30, 2025.

How were the results provided by OmniAb (OABI)?

They were furnished as Exhibit 99.1 and are not deemed “filed” under the Exchange Act.

What periods do the OmniAb results cover?

The three and nine months ended September 30, 2025.

When was the press release dated?

November 4, 2025.

What exchanges list OmniAb’s securities?

Common stock OABI is on the Nasdaq Global Market; warrants OABIW are on the Nasdaq Capital Market.

Which exhibits accompanied the announcement?

Exhibit 99.1 (press release) and Exhibit 104 (Cover Page Interactive Data File).