Proposed sale of 6,213,418 common shares

Issuer submitted a Form 144 notice proposing the sale of 6,213,418 common shares.

Rhea-AI Filing Summary

Issuer submitted a Form 144 notice proposing the sale of 6,213,418 common shares. The filing lists a broker, J.P. Morgan Securities, and indicates the transaction methods include open market purchases and exercises of put/call options. Dates shown include 05/12/2026 (filing) and a transaction date of 05/15/2020.

Insights

Securities Compliance Attorney

Routine Form 144 notice of proposed sale; disclosures focus on broker and sale method.

The filing lists a proposed sale of 6,213,418 shares through J.P. Morgan Securities and references open market transactions and option exercises. The record includes dates tied to the filing and the sales activity.

Key dependencies are broker processing and applicable resale conditions under Rule 144; timing and actual execution are determined by subsequent market activity and compliance with resale conditions.

Key Figures

Proposed shares to be sold: 6,213,418 shares Filing date shown: 05/12/2026 Transaction date shown: 05/15/2020

3 metrics

Proposed shares to be sold 6,213,418 shares listed in the Securities To Be Sold row

Filing date shown 05/12/2026 date adjacent to issuer/securities header

Transaction date shown 05/15/2020 listed under Securities To Be Sold as transaction date

Key Terms

Form 144, open market purchases, put/call option exercises

3 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

open market purchases financial

"Open market purchases and exercises of put/call options"

Open market purchases are buys of a company’s shares (or other securities) made on public exchanges at prevailing market prices rather than through private deals. For investors this matters because when a company buys back its own stock it reduces the number of shares available, which can boost per-share earnings and often signals management’s confidence; it also affects supply, demand and short-term liquidity much like someone quietly buying up items from a crowded marketplace.

put/call option exercises financial

"Open market purchases and exercises of put/call options"

FAQ

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

What does the Form 144 for JHG report?

It reports a proposed sale of 6,213,418 common shares. The notice names J.P. Morgan Securities as broker and lists sale methods including open market trades and option exercises.

When are the dates shown on the Form 144 for JHG?

The filing shows 05/12/2026 and a transaction date of 05/15/2020. These dates appear next to the issuer and securities rows in the provided excerpt.

Which sale methods are listed on the JHG Form 144?

The excerpt lists open market purchases and exercises of put/call options. It also references a broker for option exercises, identified as Morgan Stanley for that method.

Who is the broker named on the JHG Form 144?

J.P. Morgan Securities is listed as the broker. The filing row shows J.P. Morgan Securities with an address and is tied to the common stock sale entry.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/12/2026 - 08:02 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001345471
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Janus Henderson Group PLC
SEC File Number	001-38103
Address of Issuer	201 Bishopsgate London UNITED KINGDOM EC2M3AE
Phone	44-2078181818
Name of Person for Whose Account the Securities are To Be Sold	TRIAN FUND MANAGEMENT, L.P.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Owner
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	J.P. Morgan Securities 277 Park Avenue New York NY 10172	6213418	321233711	154075608	05/12/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	05/15/2020	Open market purchases and exercises of put/call options	N/A for open market purchases; Morgan Stanley for put/call option exercises			6213418	05/15/2020	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	Trian Fund Management, L.P. (TFM) is the investment manager of certain funds which primarily hold publicly traded securities that are selling shares for portfolio management purposes. The shares proposed to be sold were acquired and paid for between 05/15/2020 and 04/04/2022, and may be sold on or after 5/12/2026 for portfolio management purposes. As contemplated by the Voting and Rollover Agreement dated as of December 21, 2025, an affiliate of TFM will roll over at least 24,750,000 shares of the Issuer in connection with the closing of the previously announced acquisition of the Issuer by TFM and its affiliated funds, and General Catalyst and its affiliated funds. Progress toward closing of the acquisition is continuing, with shareholders approving the transaction on April 16, 2026. The acquisition is expected to close in mid-2026, subject to customary closing conditions, including receipt of applicable regulatory approvals and client consents.
Date of Notice	05/12/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Daniel R. Marx, General Counsel
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)