SCHEDULE: Janus Henderson Discloses 0.8% Stake in OmniAb

Janus Henderson Group plc has filed an amended Schedule 13G, disclosing a 0.8% beneficial ownership stake in OmniAb, Inc. as of June 30, 2025.

Summary

• Janus Henderson Group plc, a Jersey-based investment adviser and holding company, filed an Amendment No. 4 to Schedule 13G.
• The filing reports beneficial ownership of 948,434 shares of Common Stock in OMNIAB, INC.
• This represents 0.8% of OmniAb, Inc.'s class of securities.
• Janus Henderson Group plc holds shared voting and shared dispositive power over all 948,434 shares.
• The shares are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
• Indirect subsidiaries JHIUS, JHIUKL, and JHIAIFML are registered investment advisers furnishing investment advice to Managed Portfolios.

Sentiment

Score: 5

Explanation: The filing is a neutral, factual disclosure of beneficial ownership, providing no positive or negative operational or financial performance insights.

Industry Context

This filing is a routine disclosure of passive beneficial ownership by an institutional investor, Janus Henderson Group plc, in OmniAb, Inc. Such filings are common in the investment management industry, reflecting portfolio holdings rather than strategic corporate actions or operational performance.

Stakeholder Impact

• Shareholders: Provides transparency regarding a significant institutional investor's passive stake in the company.

Key Dates

Keywords

OmniAb, Janus Henderson, Schedule 13G, Beneficial Ownership, Investment Adviser, Common Stock, SEC Filing