# EDGAR Filing Document

**Accession Number:** 0001728954
**File Stem:** 0001209191-23-006298
**Filing Date:** 2023-2
**Character Count:** 15285
**Document Hash:** e3b87452ccd173d5fb368a9614c2254c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001209191-23-006298.hdr.sgml**: 20230202

**ACCESSION NUMBER**: 0001209191-23-006298

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20221115

**FILED AS OF DATE**: 20230202

**DATE AS OF CHANGE**: 20230202

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Baldwin Brian M
- **CENTRAL INDEX KEY:** 0001728954

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38103
- **FILM NUMBER:** 23582504

**MAIL ADDRESS:**
- **STREET 1:** 280 PARK AVENUE
- **STREET 2:** 41ST FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** JANUS HENDERSON GROUP PLC
- **CENTRAL INDEX KEY:** 0001274173
- **STANDARD INDUSTRIAL CLASSIFICATION:** INVESTMENT ADVICE [6282]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** Y9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 201 BISHOPSGATE
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** EC2M 3AE
- **BUSINESS PHONE:** 442078181818

**MAIL ADDRESS:**
- **STREET 1:** 201 BISHOPSGATE
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** EC2M 3AE

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HENDERSON GROUP PLC
- **DATE OF NAME CHANGE:** 20050511

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HHG PLC
- **DATE OF NAME CHANGE:** 20031223

## Exhibit 24.1

```
<PRE>
Exhibit 24.1 POWER OF ATTORNEY

Know all by these presents, that Brian M. Baldwin ("Principal") hereby
constitutes and appoints each of Brian L. Schorr, Daniel R. Marx and Jeffrey
Himelson, signing singly, the undersigned's true and lawful attorney-in-fact to:

(1) complete and execute for and on behalf of the undersigned, in the
undersigned's capacity as (i) a director, and/or (ii) a 10% shareholder of Janus
Henderson Group plc (the "Company"), Forms 3, 4 and 5 in accordance with Section
16(a) of the Securities Exchange Act of 1934 and the rules thereunder and Form
144 in accordance with the Securities Act of 1933 and the rules thereunder; and

(2) do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4 or 5 or
Form 144, complete and execute any amendment or amendments thereto, and timely
file such form with the United States Securities and Exchange Commission and any
stock exchange or similar authority.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934 ("Section 16").  The
undersigned hereby agrees on behalf of the undersigned and the undersigned's
heirs, executors, legal representatives and assigns to indemnify, defend and
hold each of the foregoing attorneys-in-fact harmless from and against any and
all claims that may arise against such attorney-in-fact by reason of any
violation by the undersigned of the undersigned's responsibilities under Section
16 or any other claim relating to any action taken by such attorney-in-fact
pursuant to this Power of Attorney.

CAUTION TO THE PRINCIPAL: Your Power of Attorney is an important document.  As
the "principal," you give the person whom you choose (your "agent") authority to
spend your money and sell or dispose of your property during your lifetime
without telling you. You do not lose your authority to act even though you have
given your agent similar authority.  When your agent exercises this authority,
he or she must act according to any instructions you have provided or, where
there are no specific instructions, in your best interest. "Important
Information for the Agent" at the end of this document describes your agent's
responsibilities. Your agent can act on your behalf only after signing the Power
of Attorney before a notary public. You can request information from your agent
at any time.  If you are revoking a prior Power of Attorney by executing this
Power of Attorney, you should provide written notice of the revocation to your
prior agent(s) and to the financial institutions where your accounts are
located.  You can revoke or terminate your Power of Attorney at any time for any
reason as long as you are of sound mind.  If you are no longer of sound mind, a
court can remove an agent for acting improperly. Your agent cannot make health
care decisions for you.  You may execute a "Health Care Proxy" to do this.

The law governing Powers of Attorney is contained in the New York General
Obligations Law, Article 5, Title 15. This law is available at a law library, or
online through the New York State Senate or Assembly websites,
www.senate.state.ny.us or www.assembly.state.ny.us.  If there is anything about
this document that you do not understand, you should ask a lawyer of your own
choosing to explain it to you.

This Power of Attorney shall remain in full force and effect until Principal is
no longer required to file any of Form 3, 4 or 5 or Form 144 with respect to
Principal's holdings of and transactions in securities issued by the Company,
unless earlier revoked by Principal in a signed writing delivered to any of the
foregoing attorneys-in-fact.  This Power of Attorney does not revoke or replace
any other power of attorney that Principal has previously granted.

IMPORTANT INFORMATION FOR THE AGENT:  When you accept the authority granted
under this Power of Attorney, a special legal relationship is created between
you and the principal. This relationship imposes on you legal responsibilities
that continue until you resign or the Power of Attorney is terminated or
revoked.  You must:

(1) act according to any instructions from the principal, or, where there are no
instructions, in the principal's best interest;

(2) avoid conflicts that would impair your ability to act in the principal's
best interest;

(3) keep the principal's property separate and distinct from any assets you own
or control, unless otherwise permitted by law;

(4) keep a record or all receipts, payments, and transactions conducted for the
principal; and

(5) disclose your identity as an agent whenever you act for the principal by
writing or printing the principal's name and signing your own name as "agent" in
either of the following manner: (Principal's Name) by (Your Signature) as Agent,
or (your signature) as Agent for (Principal's Name).

You may not use the principal's assets to benefit yourself or give major gifts
to yourself or anyone else unless the principal has specifically granted you
that authority in this Power of Attorney or in a Statutory Major Gifts Rider
attached to this Power of Attorney. If you have that authority, you must act
according to any instructions of the principal or, where there are no such
instructions, in the principal's best interest. You may resign by giving written
notice to the principal and to any co-agent, successor agent, monitor if one has
been named in this document, or the principal's guardian if one has been
appointed. If there is anything about this document or your responsibilities
that you do not understand, you should seek legal advice.

Liability of agent:  The meaning of the authority given to you is defined in New
York's General Obligations Law, Article 5, Title 15.  If it is found that you
have violated the law or acted outside the authority granted to you in the Power
of Attorney, you may be liable under the law for your violation.

IN WITNESS WHEREOF, the undersigned have caused this Power of Attorney to be
executed as of the dated specified below.

By:	/s/Brian M. Baldwin
	-----------------------
	Brian M. Baldwin
	Date: February 2, 2023

State of New York	)
			) ss.:
County of New York	)

On the 2nd day of February in the year 2023 before me, the undersigned,
personally appeared Brian M. Baldwin, personally known to me or proved to me on
the basis of satisfactory evidence to be the individual whose name is subscribed
to the within instrument and acknowledged to me that he executed the same in his
capacity, and that by his signature on the instrument, the individual, or the
person upon behalf of which the individual acted, executed the instrument.

/s/Jane A. Singletary
-------------------------
JANE A. SINGLETARY
NOTARY PUBLIC - State of New York
No. 01SI5063837
Qualified in New York County
Commission Expires 7/29/2026

By:	/s/Brian L. Schorr
	-----------------------
	Brian L. Schorr
	Date: February 2, 2023

State of New York	)
			) ss.:
County of New York	)

On the 2nd day of February in the year 2023 before me, the undersigned,
personally appeared Brian L. Schorr, personally known to me or proved to me on
the basis of satisfactory evidence to be the individual whose name is subscribed
to the within instrument and acknowledged to me that he executed the same in his
capacity, and that by his signature on the instrument, the individual, or the
person upon behalf of which the individual acted, executed the instrument.

/s/Jane A. Singletary
-------------------------
JANE A. SINGLETARY
NOTARY PUBLIC - State of New York
No. 01SI5063837
Qualified in New York County
Commission Expires 7/29/2026

By:	/s/Daniel R. Marx
	-----------------------
	Daniel R. Marx
	Date: February 2, 2023

State of New York	)
			) ss.:
County of New York	)

On the 2nd day of February in the year 2023 before me, the undersigned,
personally appeared Daniel R. Marx, personally known to me or proved to me on
the basis of satisfactory evidence to be the individual whose name is subscribed
to the within instrument and acknowledged to me that he executed the same in his
capacity, and that by his signature on the instrument, the individual, or the
person upon behalf of which the individual acted, executed the instrument.

/s/Jane A. Singletary
-------------------------
JANE A. SINGLETARY
NOTARY PUBLIC - State of New York
No. 01SI5063837
Qualified in New York County
Commission Expires 7/29/2026

By:	/s/Jeffrey Himelson
	-----------------------
	Jeffrey Himelson
	Date: February 2, 2023

State of New York	)
			) ss.:
County of New York	)

On the 2nd day of February in the year 2023 before me, the undersigned,
personally appeared Jeffrey Himelson, personally known to me or proved to me on
the basis of satisfactory evidence to be the individual whose name is subscribed
to the within instrument and acknowledged to me that he executed the same in his
capacity, and that by his signature on the instrument, the individual, or the
person upon behalf of which the individual acted, executed the instrument.

/s/Jane A. Singletary
-------------------------
JANE A. SINGLETARY
NOTARY PUBLIC - State of New York
No. 01SI5063837
Qualified in New York County
Commission Expires 7/29/2026

</PRE>
```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Baldwin Brian M<br><sub>(Last) (First) (Middle)</sub><br>280 PARK AVENUE, 41ST FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10017<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>JANUS HENDERSON GROUP PLC [ JHG ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2022-11-15 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 31867800 | I | Please see explanation below<sup>(1)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Trian Fund Management, L.P. ("Trian Management") serves as the management company for Trian Partners AM Holdco II, Ltd. ("Trian AM Holdco II") and as such determines the investment and voting decisions of Trian AM Holdco II with respect to the shares of the Issuer held by it.  Mr. Baldwin is a limited partner of certain affiliates of Trian AM Holdco II and Trian Management and therefore may be deemed to have an indirect interest in the shares which they hold. The Reporting Person disclaim beneficial ownership of such shares except to the extent of his respective pecuniary interests therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Mr. Baldwin is a director of the Issuer.

**Remarks:**
Exhibit 24.1 - Power of Attorney - Brian M. Baldwin

**Signature:** /s/ Daniel R. Marx, Attorney-in-Fact for Brian M. Baldwin  
**Date:** 2023-02-02

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**