OmniAb, Inc.

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Submission of Matters to a Vote of Security Holders

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration statement under Securities Act of 1933

Rule 506(b) provides a "safer harbor" for a private offering

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Submission of Matters to a Vote of Security Holders

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

5.02

5.07

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

2.02,9.01

Notice of Effectiveness

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration statement under Securities Act of 1933

Post-effective amendment to a registration statement

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Notice of Effectiveness

Post-effective amendment to a registration statement

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Post-effective amendment filed solely to add exhibits

Prospectus Supplement for Primary Offering

Annual report pursuant to Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Correspondence with the SEC

Amended Initial Registration Statement

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Amended Initial Registration Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Letter from the SEC

Registration (IPO) statement under Securities Act of 1933

General form for quarterly reports under Section 13 or 15(d)

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

Annual report pursuant to Section 13 or 15(d)

Nwachuku Amechi Ekeke

Nwachuku Amechi Ekeke

Cochran Jennifer R.

Love Steven

HIGGINS JOHN L

Crouse Steven C.

Bertozzi Carolyn R

Gotwals Philip J

Crouse Steven C.

Gotwals Philip J

Berkman Charles S

GUSTAFSON KURT A

Berkman Charles S

FOEHR MATTHEW W

FOEHR MATTHEW W

GUSTAFSON KURT A

GUSTAFSON KURT A

Berkman Charles S

FOEHR MATTHEW W