[SCHEDULE 13D/A] METHANEX CORP SEC Filing

Rhea-AI Filing Summary

M&G Investment Management Limited reports beneficial ownership of 12,756,931 shares of Methanex Corporation common stock, representing 16.49% of 77,339,520 shares outstanding as published by the issuer. The shares were acquired from investment capital of MAGIM and M&G has sole voting and dispositive power over the reported position.

The filing states the position was bought for investment purposes because the shares were considered undervalued. M&G may engage with Methanex management, the board and other stakeholders and reserves the right to propose or support changes related to governance, capital structure or strategy, acquire or dispose of additional securities, or enter into other transactions concerning its holdings.

Positive

• Substantial ownership: Beneficial ownership of 12,756,931 shares representing 16.49% of outstanding common stock.
• Sole control: Reporting person has sole voting and dispositive power over the reported shares.
• Clear funding source: Purchases funded from the investment capital of MAGIM, indicating institutional backing.
• Disclosure of intent to engage: Reporting person states they may engage with management and the Board, providing transparency on possible future actions.

Negative

• Potential for active engagement: The filer reserves the right to propose changes to governance, capital structure or strategy, which could unsettle management or other shareholders.

Insights

Financial Analyst

TL;DR: A sizeable 16.49% stake by an institutional investor creates material influence potential and is likely to attract investor and management attention.

The reported 12.76 million-share stake is large relative to total outstanding shares and gives M&G sole voting and dispositive power, which is significant for shareholder dynamics. The declaration that purchases were made from MAGIM investment capital and that M&G may engage with the Board or propose changes indicates potential for active engagement. This holding could affect share liquidity and governance discussions; market reaction will depend on whether engagement becomes public and whether M&G seeks board or strategic changes.

Corporate Governance Expert

TL;DR: Ownership level is material for governance but the filing describes investment intent rather than explicit activist demands.

M&G’s statement of possible discussions with management and the Board is consistent with an investor seeking to protect or enhance value. The filing does not identify any concrete proposals, agreements or contractual arrangements with other shareholders, and no litigation or formal governance actions are disclosed. From a governance perspective, this is a meaningful stake that could precipitate dialogue but, based solely on the filing, is not yet a formal activist campaign.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 1)

Methanex Corporation

(Name of Issuer)

Common Stock

(Title of Class of Securities)

59151K108

(CUSIP Number)

M&G Investment Management Ltd
10 Fenchurch Avenue,
London, X0, EC3M 5AG
44 (0) 207 548 6600

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

07/30/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 59151K108

1

Name of reporting person

M&G Investment Management Limited

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 12,756,931.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 12,756,931.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

12,756,931.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

16.49 %

14

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock
(b)	Name of Issuer: Methanex Corporation
(c)	Address of Issuer's Principal Executive Offices: 1800 Waterfront Centre, 200 Burrard Street, Vancouver, BC, CANADA (FEDERAL LEVEL) , V6C 3M1.
Item 1 Comment: This statement on Schedule 13D relates to the shares of common stock of Methanex Corp, a British Columbia corporation (the "Issuer"). The address of the principal executive offices is:
Item 2.	Identity and Background
(a)	This Schedule 13D is being filed by M&G Investment Management Limited, a company incorporated under the laws of England and Wales (the "Reporting Person").
(b)	The address of the principal business office of the Reporting Person is 10 Fenchurch Avenue, London EC3M 5AG.
(c)	The principal business of the Reporting Person is investing in securities.
(d)	During the last five years, the Reporting Person has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanours).
(e)	During the last five years, the Reporting Person has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violations with respect to such laws.
(f)	The Reporting Person is a company incorporated under the laws of England and Wales.
Item 3.	Source and Amount of Funds or Other Consideration
	The funds for the purchase of the Common Stock came from the investment capital of MAGIM.
Item 4.	Purpose of Transaction
	The Reporting Person acquired the Common Stock to which this Schedule 13D relates for investment purposes in the ordinary course of business. The Reporting Person acquired the Common Stock because they believed that the Common Stock reported herein, when purchased, were undervalued and represented an attractive investment opportunity. The Reporting Person and their representatives have, from time to time, engaged in, and expect to continue to engage in, discussions with members of management and the board of directors of the Issuer (the "Board"), other current or prospective shareholders, industry analysts, existing or potential strategic partners or competitors, investment and financing professionals, sources of credit and other third parties regarding a variety of matters relating to the Issuer, which may include, among other things, the Issuer's business, management, capital structure and allocation, environmental, social and governance matters, Board composition and strategic alternatives and direction, and may take other steps seeking to bring about changes to increase shareholder value as well as pursue other plans or proposals that relate to or could result in any of the matters set forth in clauses (a)-(j) of Item 4 of Schedule 13D. The Reporting Person intend to review their investment in the Issuer on a continuing basis. Depending on various factors, including, without limitation, the outcome of any discussions referenced above, the Issuer's financial position, results and strategic direction, actions taken by the Issuer's management and the Board, price levels of the Common Stock, other investment opportunities available to the Reporting Person, conditions in the securities market and general economic and industry conditions, the Reporting Person reserve the right in the future to take such actions with respect to their investment in the Issuer as they deem appropriate, including, without limitation, exchanging information with the Issuer pursuant to appropriate confidentiality or similar agreements; proposing changes in the Issuer's operations, governance or capitalization; acquiring additional Common Stock and/or other equity, debt, notes, instruments or other securities of the Issuer (collectively, "Securities") or disposing of some or all of the Securities beneficially owned by them, in public market or privately negotiated transactions; entering into financial instruments or other agreements that increase or decrease the Reporting Person' economic exposure with respect to their investment in the Issuer; and/or otherwise changing their intention with respect to any and all matters referred to in Item 4 of Schedule 13D.
Item 5.	Interest in Securities of the Issuer
(a)	M&G Investment Management Limited (MAGIM) own 12,756,931 shares of Common Stock, which represents approximately 16.49% of 77,339,520 outstanding shares of Common Stock of Methanex, as published by the Issuer on July 30, 2025
(b)	M&G Investment Management has sole voting and investment discretion with respect to the shares
(c)	The table below details all transactions since the last 13D filed, on behalf of the Reporting Persons identified above on 23rd April 2025, until the date of this filing. Acquirer/Disposer Trade Date Transaction Type Amount of Shares Price Per Share Where/How Effected M&G Investment Management Limited 29 Apr 2025 BUY 2,400.00 $31.48 Internal Transfer M&G Investment Management Limited 29 Apr 2025 SELL 2,400.00 $31.48 Internal Transfer M&G Investment Management Limited 02 May 2025 BUY 5,000.00 $32.25 Internal Transfer M&G Investment Management Limited 02 May 2025 SELL 5,000.00 $32.25 Internal Transfer M&G Investment Management Limited 16 May 2025 BUY 2,200.00 $33.61 Internal Transfer M&G Investment Management Limited 16 May 2025 SELL 2,200.00 $33.61 Internal Transfer M&G Investment Management Limited 19 May 2025 SELL 300.00 $33.94 Internal Transfer M&G Investment Management Limited 19 May 2025 BUY 300.00 $33.94 Internal Transfer M&G Investment Management Limited 04 Jun 2025 BUY 10,000.00 $33.19 Internal Transfer M&G Investment Management Limited 04 Jun 2025 SELL 10,000.00 $33.19 Internal Transfer M&G Investment Management Limited 05 Jun 2025 BUY 8,876.00 $33.41 Internal Transfer M&G Investment Management Limited 05 Jun 2025 SELL 8,876.00 $33.39 Internal Transfer M&G Investment Management Limited 10 Jun 2025 SELL 9,000.00 $33.51 Internal Transfer M&G Investment Management Limited 10 Jun 2025 BUY 9,000.00 $33.48 Internal Transfer M&G Investment Management Limited 11 Jun 2025 BUY 3,563.00 $34.21 Internal Transfer M&G Investment Management Limited 11 Jun 2025 SELL 3,563.00 $34.17 Internal Transfer M&G Investment Management Limited 18 Jun 2025 BUY 5,000.00 $36.98 Internal Transfer M&G Investment Management Limited 18 Jun 2025 SELL 5,000.00 $36.95 Internal Transfer M&G Investment Management Limited 24 Jun 2025 SELL 912.00 $35.10 Internal Transfer M&G Investment Management Limited 24 Jun 2025 BUY 912.00 $35.10 Internal Transfer M&G Investment Management Limited 26 Jun 2025 BUY 3,424.00 $35.39 Internal Transfer M&G Investment Management Limited 26 Jun 2025 SELL 3,424.00 $35.39 Internal Transfer M&G Investment Management Limited 08 Jul 2025 BUY 3,493.00 $34.86 Internal Transfer M&G Investment Management Limited 08 Jul 2025 SELL 300.00 $34.99 Internal Transfer M&G Investment Management Limited 08 Jul 2025 SELL 3,193.00 $34.85 Internal Transfer M&G Investment Management Limited 23 Jul 2025 SELL 3,500.00 $35.13 Internal Transfer M&G Investment Management Limited 23 Jul 2025 BUY 3,500.00 $35.06 Internal Transfer
(d)	Both M&G (Lux) Investment Funds 1 and M&G Global Dividend Fund, each a private investment vehicle, for which M&G Investment Management Limited serves as investment adviser, has the right to receive and/or the power to direct the receipt of dividends from, or the proceeds from the sale of, more than five percent of the Common Shares of the Issuer. To the best knowledge of the reporting person, no person other than the reporting person and those identified above in this Schedule 13D have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities beneficially owned identified herein.
(e)	Not applicable
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	Not applicable
Item 7.	Material to be Filed as Exhibits.
	Not applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

M&G Investment Management Limited

Signature:	/s/ Tamara Postoj
Name/Title:	Tamara Postoj, Regulatory Reporting Technical Manager
Date:	09/24/2025

FAQ

How many Methanex (MEOH) shares does M&G Investment Management Limited report owning?

M&G reports beneficial ownership of 12,756,931 shares of Methanex common stock.

What percentage of Methanex does M&G's position represent?

The reported position represents 16.49% of Methanex's 77,339,520 outstanding shares as published by the issuer.

Does M&G have voting control over the shares it reports?

Yes. The filing states M&G has sole voting and dispositive power with respect to the reported shares.

What was the source of funds for M&G's purchases of Methanex stock?

The funds came from the investment capital of MAGIM.

Will M&G try to influence Methanex's management or strategy?

The filing says M&G may engage in discussions with management and the Board and may propose or support changes, but it does not disclose any specific proposals.