JHG furnishes Q3 2025 results via 8-K Exhibit 99.1

Rhea-AI Filing Summary

Janus Henderson Group plc reported that it issued a press release covering its financial results for the third quarter of 2025, and furnished that release as Exhibit 99.1 to a Form 8‑K. The disclosure appears under Item 2.02 (Results of Operations and Financial Condition) with supporting materials listed in Item 9.01 (Financial Statements and Exhibits). The report was signed by CFO Roger Thompson on October 30, 2025.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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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): October 30, 2025

Commission File Number 001-38103

JANUS HENDERSON GROUP PLC

(Exact name of registrant as specified in its charter)

Jersey, Channel Islands (State or other jurisdiction of incorporation or organization)	98-1376360 (I.R.S. Employer Identification No.)
201 Bishopsgate London, United Kingdom (Address of principal executive offices)	EC2M3AE (Zip Code)

+44 (0) 20 7818 1818

(Registrant’s telephone number, including area code)

N/A
(Former name, former address and former fiscal year, if changed since last report)

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, $1.50 Per Share Par Value	JHG	New York Stock Exchange

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 (see General Instruction A.2. below): 

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

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. ☐

Item 2.02         Results of Operations and Financial Condition.

On October 30, 2025, Janus Henderson Group plc issued a press release reporting its financial results for the third quarter 2025. A copy of that press release is being furnished as Exhibit 99.1 to this Current Report.

Item 9.01         Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith.

Exhibit Number		Description
99.1		Janus Henderson Group plc press release reporting its financial results for the third quarter 2025.
104		Cover Page Interactive Data File - The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

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SIGNATURE

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

	Janus Henderson Group plc
Date: October 30, 2025	By:	/s/ Roger Thompson
		Roger Thompson
		Chief Financial Officer

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FAQ

What did JHG disclose in this 8-K?

Janus Henderson Group announced it issued a press release reporting financial results for the third quarter 2025, furnished as Exhibit 99.1.

Where can I find JHG’s detailed Q3 2025 results?

The detailed results are in the press release furnished as Exhibit 99.1.

Which items are included in this 8-K for JHG?

The disclosure is provided under Item 2.02 and the exhibits are listed under Item 9.01.

Who signed the report for JHG and when?

Roger Thompson, Chief Financial Officer, signed the report on October 30, 2025.

What is JHG’s trading symbol and exchange?

Common stock trades under JHG on the New York Stock Exchange.

What exhibit accompanies the 8-K?

Exhibit 99.1: the press release reporting Q3 2025 financial results.