POET: Marex reports 9.15M shares (6%)

POET TECHNOLOGIES INC. reports a Schedule 13G filing showing Marex affiliates beneficially own 9,150,000 shares of Common Stock, representing 6% of the class.

Rhea-AI Filing Summary

POET TECHNOLOGIES INC. reports a Schedule 13G filing showing Marex affiliates beneficially own 9,150,000 shares of Common Stock, representing 6% of the class. The filing lists Marex Securities Products, Inc. and Marex Group plc with sole voting and dispositive power over those shares.

The filing includes CUSIP 73044W302 and identifies principal offices in New York and London. Signatures are dated 05/19/2026 and 05/06/2026.

Insights

Corporate Governance Analyst

Marex affiliates report a 6% stake in POET Technologies with sole voting and dispositive power.

The filing lists Marex Securities Products, Inc. and Marex Group plc as the reporting persons, each shown with 9,150,000 shares and sole voting and dispositive authority. This identifies a concentrated ownership position disclosed under a Schedule 13G format.

Shareholder disclosures like this provide visibility into sizable passive or institutional stakes; subsequent filings could clarify any change in intent, but timing and intent are not stated in the excerpt.

Key Figures

Beneficial ownership: 9,150,000 shares Percent of class: 6% CUSIP: 73044W302 +3 more

6 metrics

Beneficial ownership 9,150,000 shares Amount beneficially owned as stated in Item 4(a)

Percent of class 6% Percent of class as stated in Item 4(b)

CUSIP 73044W302 CUSIP number provided for Common Stock

Sole voting power 9,150,000 shares Sole power to vote listed in Item 4(c)(i)

Sole dispositive power 9,150,000 shares Sole power to dispose listed in Item 4(c)(iii)

Filing signature dates 05/19/2026; 05/06/2026 Signed dates shown at end of excerpt

Key Terms

Schedule 13G, beneficially owned, sole dispositive power, CUSIP

4 terms

Schedule 13G regulatory

"Item 1. Name of issuer: POET TECHNOLOGIES INC."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned regulatory

"Item 4. (a) Amount beneficially owned: 9150000"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"7 | Sole Dispositive Power 9,150,000.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

CUSIP financial

"(e) | CUSIP Number(s): 73044W302"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

FAQ

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

How many POET (POET) shares do Marex affiliates report owning?

Marex affiliates report beneficial ownership of 9,150,000 shares, representing 6% of POET's Common Stock. The filing lists sole voting and dispositive power over those shares by the named Marex entities.

Which entities filed the Schedule 13G for POET?

The Schedule 13G was filed by Marex Securities Products, Inc. and Marex Group plc, with principal offices in New York and London, as shown in the filing. Both are listed as the reporting persons.

What security and CUSIP does the filing cover for POET?

The filing covers POET Technologies Inc. Common Stock, no par value, under CUSIP 73044W302. The document identifies the security class and the issuer's principal executive office in Toronto.

What voting and disposition powers are reported by Marex?

The filing shows Marex with sole voting power of 9,150,000 shares and sole dispositive power of 9,150,000 shares. Shared voting and dispositive powers are reported as zero.

When were the signatures on the Schedule 13G dated?

Signatures in the excerpt are dated 05/19/2026 for Jennifer Kaiser and 05/06/2026 for Scott Linsley, indicating the dates the filing was signed by the listed officers.

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

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Accepted by SEC EDGAR 05/19/2026 - 04:15 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

POET TECHNOLOGIES INC.

(Name of Issuer)

Common Stock, no par value

(Title of Class of Securities)

73044W302

(CUSIP Number)

05/14/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 73044W302

1

Names of Reporting Persons

Marex Securities Products Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 9,150,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 9,150,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,150,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.0 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP Number(s): 73044W302

1

Names of Reporting Persons

Marex Group plc

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 9,150,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 9,150,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

915,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.0 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: POET TECHNOLOGIES INC.
(b)	Address of issuer's principal executive offices: 120 EGLINTON AVENUE EAST, SUITE 1107, TORONTO, ONTARIO, ONTARIO, CANADA, M4P 1E2.
Item 2.
(a)	Name of person filing: Marex Securities Products, Inc. Marex Group plc
(b)	Address or principal business office or, if none, residence: Marex Securities Products, Inc. 140?East?45th?Street,?Floor?10?&?11 New?York, NY 10017 Marex Group plc 155 Bishopsgate London, X0 EC2M 3TQ
(c)	Citizenship: Marex Securities Products, Inc. Delaware Marex Group plc United Kingdom
(d)	Title of class of securities: Common Stock, no par value
(e)	CUSIP Number(s): 73044W302
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 9150000
(b)	Percent of class: 6 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 9150000
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 9150000
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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.

Marex Securities Products Inc.

Signature:	Jennifer Kaiser
Name/Title:	COO
Date:	05/19/2026

Marex Group plc

Signature:	Scott Linsley
Name/Title:	Corporate Secretary
Date:	05/06/2026