Welcome to our dedicated page for Janus Henderson SEC filings (Ticker: JHG), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Janus Henderson Group plc filings document the regulatory record of a global active asset manager with common stock listed on the New York Stock Exchange. The company’s Form 8-K reports cover operating and financial results, material definitive agreements, proxy-related communications and other material-event disclosures.
Janus Henderson’s proxy and governance filings describe shareholder voting matters, board and corporate-governance topics, capital-structure disclosures and related risk factors. The filing record also reflects formal disclosure around financial reporting and corporate actions affecting the company’s public-company status and securities.
Janus Henderson Group plc filed a quarterly Form 13F holdings report as an institutional investment manager. The filing states that all holdings for this manager are included in the report and identifies 15 other included managers associated with its investment operations in multiple regions.
The summary page reports a Form 13F information table with 4,350 individual entries and an aggregate reported market value of $223,305,374,575, rounded to the nearest dollar. The report is signed by Kristin Mariani, Head of North America Compliance, on behalf of the firm.
Janus Henderson Group plc's chief financial officer Roger Thompson reported equity compensation activity in company stock. On February 11, 2026, he acquired 35,784 shares of common stock upon vesting of a previously granted performance share unit award at a value of $48.2525 per share. To cover related tax withholding obligations, the issuer sold 16,861 shares of common stock on his behalf at the same price. Following these transactions, Thompson directly owned 132,112.1236 shares of Janus Henderson common stock.
Janus Henderson Group plc has filed an amended Schedule 13G reporting beneficial ownership of 6,083,239 shares of Equillium, Inc. common stock, representing 9.99% of the class. These holdings are managed through various affiliated asset managers on behalf of client accounts, called Managed Portfolios.
The position includes shares that may be obtained through exercise of certain pre-funded warrants that are exercisable within 60 days, but only to the extent total beneficial ownership does not exceed 9.99% of Equillium’s outstanding common stock. An additional 18,584,856 warrants are excluded from the reported figures due to this ownership cap. Dividends and sale proceeds belong to the Managed Portfolios, not Janus Henderson.
Janus Henderson Group plc filed an amended Schedule 13G reporting beneficial ownership of 16,803,459 common shares of Biohaven Ltd., representing 12.7% of the class as of the triggering event on 01/30/2026.
The shares are held across multiple investment advisers and their client accounts, referred to as Managed Portfolios. Janus Henderson’s asset managers share voting and investment power over these Biohaven shares, while the Managed Portfolios themselves receive all dividends and sale proceeds. The filing states the position is held in the ordinary course of business and not for the purpose of changing or influencing control of Biohaven.
Janus Henderson Group plc’s Chief Accounting Officer and General Counsel Michelle Rosenberg reported equity compensation activity. On February 2, 2026, she acquired 26,022 shares of common stock at $48.18 per share upon vesting of a previously granted performance share unit award. On the same date, 11,385 shares were withheld by the company at $48.18 per share to cover her tax withholding obligations related to that vesting. Following these transactions, she directly beneficially owned 109,805.02 shares of common stock and indirectly held 129.589 shares through a 401(k) plan.
Janus Henderson Group CEO Ali Dibadj reported stock-based compensation activity in the company’s common stock. On February 2, 2026, he acquired 212,501 shares at $48.18 per share upon vesting of a previously granted performance share unit award. On the same date, 117,514 shares at $48.18 per share were withheld by the company to cover his tax obligations related to that vesting. Following these transactions, Dibadj directly beneficially owned 576,710 shares of Janus Henderson common stock.
Janus Henderson Group plc has agreed to be acquired by Jupiter Company Limited, an entity formed by funds associated with Trian and General Catalyst, in an all‑cash merger at $49.00 per share. A special meeting will ask shareholders to approve the merger, a possible adjournment, and a non‑binding vote on merger‑related executive compensation.
If approved and closing conditions are satisfied, each ordinary share (other than specified excluded shares) will be cancelled and converted into the right to receive $49.00 in cash, without interest, and Janus Henderson will become a wholly owned private subsidiary of Parent. Its shares will be delisted from the NYSE and deregistered under U.S. securities laws.
A Special Committee of independent directors unanimously determined the merger is in the company’s best interests and recommended it to the board, which in turn unanimously (with certain recusals) recommends that shareholders vote in favor of all three proposals. Approval of the merger requires at least two‑thirds of votes cast at the special meeting.
Janus Henderson Group plc filed a current report to note that it has released its financial results for the fourth quarter and full-year 2025. The company states these results are contained in a press release that is furnished as Exhibit 99.1 to the report.
Janus Henderson Group plc filed an amended Schedule 13G reporting beneficial ownership of 20,469,392 shares of DBV Technologies S.A. common stock, representing 8.8% of the class as of the event date 12/31/2025. The firm reports no sole voting or dispositive power, but shared voting and shared dispositive power over all of these shares.
The filing states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of DBV Technologies. It also notes that interests of any single managed portfolio do not exceed 5% of the class of securities.
Janus Henderson Group plc filed a Schedule 13G reporting beneficial ownership of 6,307,636 shares of CAMP4 Therapeutics Corp common stock, representing 12.2% of the class. The filing states that Janus Henderson Investors US LLC may be deemed the beneficial owner of these shares and also holds 1,241,382 pre-funded warrants that cannot be exercised if doing so would push ownership above 9.99%. All voting and dispositive power over the reported shares is shared, with no sole voting or dispositive power. The securities are described as acquired and held in the ordinary course of business and not for the purpose of changing or influencing control of CAMP4.