[13F-HR] Janus Henderson Group plc SEC Filing

Rhea-AI Filing Summary

Janus Henderson Group plc filed a Form 13F reporting its U.S. equity holdings as of 06-30-2025. The filing discloses 4,322 reported positions with a combined market value of $204,020,843,964 and identifies 15 other included managers. The document names the reporting manager and signatory and provides a list of subsidiary managers and their Form 13F file numbers. This submission is a quarterly disclosure of the manager's institutional equity holdings.

Positive

• Comprehensive holdings disclosure: The filing reports 4,322 positions, enabling detailed analysis when paired with the full information table.
• Large reported asset base: Aggregate market value of holdings is $204,020,843,964, indicating significant institutional scale.
• Clear manager structure: Lists 15 other included managers with file numbers and CIKs, improving transparency about covered entities.

Negative

• None.

Insights

Securities Analyst

TL;DR: Large-scale 13F shows broad exposure: 4,322 positions totaling $204.0B; useful for tracking institutional holdings but not performance.

The filing explicitly reports 4,322 positions valued at $204,020,843,964 as of the quarter end. It provides a comprehensive holdings count and aggregate value, which can be used to map Janus Henderson's equity footprint and identify major holdings when paired with the full information table. The summary also lists 15 other included managers, clarifying the managerial structure reported.

Compliance Officer

TL;DR: Filing meets Form 13F disclosure requirements and lists included managers and an authorized signatory.

The report includes the required cover information, an authorized signature by Kristin Mariani, Head of North America Compliance, and a Form 13F summary page showing totals for entries and market value. The filing also enumerates other included managers with their Form 13F file numbers and CIKs, supporting regulatory transparency about which entities are covered.

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL

OMB Number:			3235-0006
Estimated average burden
hours per response:			23.8

Report for the Calendar Year or Quarter Ended: 06-30-2025

Check here if Amendment		Amendment Number:
This Amendment (Check only one.):		is a restatement.
		adds new holdings entries.

Institutional Investment Manager Filing this Report:
Name:	JANUS HENDERSON GROUP PLC
Address:	201 BISHOPSGATE
	LONDON, X0 EC2M 3AE
Form 13F File Number:	028-10904
CRD Number (if applicable):
SEC File Number (if applicable):

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name:		Kristin Mariani
Title:		Head of North America Compliance
Phone:		303-333-3863
Signature, Place, and Date of Signing:
/s/ Kristin Mariani			Denver, CO	08-14-2025
[Signature]			[City, State]	[Date]

Report Type (Check only one.):
X	13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
	13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
	13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

Form 13F Summary Page
	Report Summary:
	Number of Other Included Managers:		15
	Form 13F Information Table Entry Total:		4,322
	Form 13F Information Table Value Total:		204,020,843,964
			(round to nearest dollar)

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state "NONE" and omit the column headings and list entries.]
	No.	Name	Form 13F File No.	CRD No. (if applicable)	SEC File No. (if applicable)	CIK
	10	JANUS HENDERSON INVESTORS US LLC	028-01343	000104652	801-13991	0000812295
	11	Janus Henderson Investors (Australia) Institutional Funds Management Ltd	028-20157			0001794678
	12	Janus Henderson Investors (Singapore) Ltd	028-20257			0001810753
	16	Janus Henderson Investors (Jersey) Ltd	028-21345			0001874815
	30	Equitable Investment Management Group, LLC	028-14633	000156933	801-72220	0001536185
	31	Park Avenue Institutional Advisers LLC	028-16979	000175101	801-81084	0001640801
	32	GuideStone Capital Management, LLC	028-10998	000112319	801-60303	0001308668
	33	NEW YORK LIFE INVESTMENT MANAGEMENT LLC	028-06325	000109591	801-57396	0001133639
	34	Nationwide Fund Advisors	028-05161	000109391	801-56370	0001097218
	35	NORTHERN TRUST CORP	028-00290	000007927	801-80781	0000073124
	36	Pacific Life Fund Advisors LLC	028-14003	000105169	801-15057	0001499091
	37	Penn Mutual Asset Management	028-18923	000107518	801-35477	0000855702
	39	FIRST TRUST ADVISORS LP	028-06487	000107027	801-39950	0001125816
	4	JANUS HENDERSON INVESTORS UK Ltd	028-10906			0001280110
	40	NATIONAL MUTUAL FUNDS MANAGEMENT LTD	028-23268	000107027	802-127935	0001966440

FAQ

What reporting period does Janus Henderson's 13F (JHG) cover?

The Form 13F reports holdings as of 06-30-2025.

How many positions are reported in Janus Henderson's 13F (JHG)?

The filing lists 4,322 information table entries (positions).

What is the total market value of holdings reported by Janus Henderson (JHG)?

The Form 13F summary shows a total market value of $204,020,843,964 (rounded to the nearest dollar).

How many other included managers are listed in the Janus Henderson 13F (JHG)?

The report identifies 15 other included managers.

Who signed the Form 13F filing for Janus Henderson (JHG)?

The filing is signed by Kristin Mariani, listed as Head of North America Compliance.