Janus Henderson files 13F amendment: $209.4B holdings

Janus Henderson Group plc filed an amended Form 13F reporting institutional holdings aggregated at $209,438,171,063.

Rhea-AI Filing Summary

Janus Henderson Group plc filed an amended Form 13F reporting institutional holdings aggregated at $209,438,171,063. The amendment is a restatement and shows 4,333 Form 13F information table entries across the report, with 15 other included managers listed. The report is signed by Kristin Mariani on 05-18-2026.

Key Figures

Other included managers: 15 Form 13F entries: 4,333 Aggregate holdings value: $209,438,171,063 +1 more

4 metrics

Other included managers 15 Listed in the report's "List of Other Included Managers"

Form 13F entries 4,333 Form 13F Information Table Entry Total

Aggregate holdings value $209,438,171,063 Form 13F Information Table Value Total

Signature date 05-18-2026 Date the report was signed by Kristin Mariani

Key Terms

Form 13F, Form 13F information table, other included managers

3 terms

Form 13F regulatory

"Form 13F Information Table Entry Total: 4,333"

A Form 13F is a quarterly filing that large investment managers must submit to disclose their holdings in publicly traded stocks and certain other securities. It acts like a peek into the portfolios of big investors, helping other market participants see what large players are buying or selling and offering clues about investment trends, crowded trades, and potential market impact.

Form 13F information table regulatory

"Form 13F Information Table Value Total: 209,438,171,063"

other included managers regulatory

"Number of Other Included Managers: 15"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Janus Henderson's 13F amendment disclose (JHG)?

It discloses aggregate institutional holdings totaling $209,438,171,063. The filing restates prior information and lists 4,333 reported positions with 15 other included managers named in the report.

Does the 13F amendment change the number of holdings reported by Janus Henderson (JHG)?

The amendment is marked as a restatement and adds or corrects entries in the holdings table. The report shows a Form 13F information table entry total of 4,333, reflecting the restated holdings.

Who signed Janus Henderson's amended Form 13F and when (JHG)?

The report is signed by Kristin Mariani, Head of North America Compliance, and dated 05-18-2026. The signature affirms the filer’s representation that the filing is true, correct, and complete.

How many affiliated managers are included with Janus Henderson's 13F (JHG)?

The filing lists 15 other included managers by name and Form 13F file number. These affiliated entities are identified in the report’s "List of Other Included Managers" section.

What value total does Janus Henderson report on the amended Form 13F (JHG)?

The Form 13F information table value total is $209,438,171,063. This figure is rounded to the nearest dollar and presented as the aggregate value of reported holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 02:07 PM EDT Learn about SEC filing dates

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: 03-31-2026

Check here if Amendment	X	Amendment Number:	1
This Amendment (Check only one.):	X	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	05-18-2026
[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:		4,333
	Form 13F Information Table Value Total:		209,438,171,063
			(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