OmniAb, Inc.

None

Initial general form for registration of a class of securities pursuant to Section 12(g)

Initial general form for registration of a class of securities pursuant to Section 12(g)

Initial general form for registration of a class of securities pursuant to Section 12(g)

GUSTAFSON KURT A: Initial statement of beneficial ownership of securities

Berkman Charles S: Initial statement of beneficial ownership of securities

FOEHR MATTHEW W: Initial statement of beneficial ownership of securities

LIGAND PHARMACEUTICALS INC: Initial statement of beneficial ownership of securities

Registration Withdrawal Request

Draft registration statement submitted by Emerging Growth Company under Securities Act Section 6(e) or by Foreign Private Issuer under Division of Corporation Finance policy

Draft registration statement submitted by Emerging Growth Company under Securities Act Section 6(e) or by Foreign Private Issuer under Division of Corporation Finance policy