POET Technologies (POET) sees Susquehanna affiliates report 5.7% ownership stake

Rhea-AI Filing Summary

POET Technologies Inc. has a new significant institutional holder group. G1 Execution Services, LLC, SIG Brokerage, LP, Susquehanna Fundamental Investments, LLC and Susquehanna Securities, LLC jointly report beneficial ownership of 9,808,403 Common Shares of POET Technologies Inc.

This stake represents 5.7 % of the Company’s Common Shares, based on 173,035,169 Shares outstanding as of June 30, 2026. Within the group, SIG Brokerage, LP’s reported holdings consist of options to buy Shares, and Susquehanna Securities, LLC’s total includes options to buy 9,122,200 Shares. Each reporting person states it has sole voting and dispositive power over the Shares it beneficially owns and shared voting and dispositive power over all Shares beneficially owned by the group, while disclaiming beneficial ownership of Shares held directly by any other reporting person.

Key Figures

Beneficially owned shares: 9,808,403 Shares Percent of class: 5.7 % Shares outstanding: 173,035,169 Shares +2 more

5 metrics

Beneficially owned shares 9,808,403 Shares Common Shares beneficially owned collectively by the reporting group

Percent of class 5.7 % Portion of POET Technologies’ Common Shares held by the reporting group

Shares outstanding 173,035,169 Shares Common Shares outstanding as of June 30, 2026

Options held by Susquehanna Securities, LLC 9,122,200 Shares Options to buy Shares included in Susquehanna Securities, LLC’s reported beneficial ownership

Sole voting power – Susquehanna Securities, LLC 9,586,607 Shares Shares over which Susquehanna Securities, LLC has sole voting power

Key Terms

beneficial ownership, dispositive power, Schedule 13G, CUSIP Number, +1 more

5 terms

beneficial ownership financial

"The information required by this Item 4(a) is set forth in Row 9..."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

dispositive power financial

"Sole Dispositive Power 9,586,607.00 8 | Shared Dispositive Power 9,808,403.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Schedule 13G regulatory

"This statement is filed by the entities listed below..."

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.

CUSIP Number financial

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

A CUSIP number is a nine-character code that uniquely identifies a specific U.S. or Canadian stock, bond, or other security, similar to a barcode or a social-security number for a financial instrument. It matters to investors because it removes confusion between similar securities, ensures trades and settlements are applied to the correct issue, and helps locate official documents and transaction records quickly.

broker-dealers financial

"are affiliated independent broker-dealers which, together with Susquehanna..."

A broker-dealer is a firm or individual that helps people buy and sell securities and may also trade those securities for its own account. Think of it like a market clerk who can either match a buyer with a seller or sell items from the shop’s shelves; investors rely on broker-dealers to execute trades, custody assets, provide market access and advice, and their actions and fees can affect trade speed, cost and potential conflicts of interest.

FAQ

What percentage of POET (POET) shares is held by the Susquehanna-related group?

The reporting group holds 5.7 % of POET Technologies Inc.’s Common Shares. This percentage is based on 173,035,169 Shares outstanding as of June 30, 2026, as referenced in the company’s Form 6-K exhibit.

How many POET (POET) shares are beneficially owned by the reporting group?

The group reports beneficial ownership of 9,808,403 Common Shares of POET Technologies Inc. This total includes shares underlying options held by certain entities within the group, as specifically described in the ownership section.

Which entities are included in the POET (POET) Schedule 13G reporting group?

The Schedule 13G is filed jointly by G1 Execution Services, LLC, SIG Brokerage, LP, Susquehanna Fundamental Investments, LLC and Susquehanna Securities, LLC, collectively referred to as the reporting persons for POET’s Common Shares.

How many POET (POET) shares are tied to options in this Schedule 13G?

The filing states that SIG Brokerage, LP’s beneficial ownership consists of options to buy Shares, and Susquehanna Securities, LLC’s holdings include options to buy 9,122,200 Shares. These option positions are included in the reported 9,808,403 beneficially owned Shares.

Do the reporting persons on POET (POET) disclaim any beneficial ownership?

Yes. Each reporting person disclaims beneficial ownership of Shares owned directly by another reporting person. They also note that they may be deemed a group but report sole and shared voting and dispositive power as described.

What voting and dispositive powers does the POET (POET) reporting group claim?

Each entity reports sole voting and dispositive power over the Shares it beneficially owns and shared voting and dispositive power over all Shares beneficially owned by the group, as detailed in the cover page rows.

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

Available on EDGAR 08/14/2026 - 02:03 PM Accepted by SEC EDGAR 08/14/2026 - 02:02 PM 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 Shares, no par value

(Title of Class of Securities)

73044W302

(CUSIP Number)

06/30/2026

(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

G1 Execution Services, LLC

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

ILLINOIS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 14.00
6	Shared Voting Power 9,808,403.00
7	Sole Dispositive Power 14.00
8	Shared Dispositive Power 9,808,403.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,808,403.00

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)

5.7 %

12

Type of Reporting Person (See Instructions)

BD, OO

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

CUSIP Number(s): 73044W302

1

Names of Reporting Persons

SIG Brokerage, LP

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 38,800.00
6	Shared Voting Power 9,808,403.00
7	Sole Dispositive Power 38,800.00
8	Shared Dispositive Power 9,808,403.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,808,403.00

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)

5.7 %

12

Type of Reporting Person (See Instructions)

BD, PN

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

CUSIP Number(s): 73044W302

1

Names of Reporting Persons

Susquehanna Fundamental Investments, LLC

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 182,982.00
6	Shared Voting Power 9,808,403.00
7	Sole Dispositive Power 182,982.00
8	Shared Dispositive Power 9,808,403.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,808,403.00

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)

5.7 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

CUSIP Number(s): 73044W302

1

Names of Reporting Persons

Susquehanna Securities, LLC

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 9,586,607.00
6	Shared Voting Power 9,808,403.00
7	Sole Dispositive Power 9,586,607.00
8	Shared Dispositive Power 9,808,403.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,808,403.00

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)

5.7 %

12

Type of Reporting Person (See Instructions)

BD, OO

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: POET Technologies Inc.
(b)	Address of issuer's principal executive offices: 120 Eglinton Avenue East, Ste. 1107, Toronto, Ontario M4P 1E2, Canada
Item 2.
(a)	Name of person filing: This statement is filed by the entities listed below, who are collectively referred to herein as "Reporting Persons" with respect to the Common Shares, no par value (the "Shares"), of POET Technologies Inc. (the "Company"). (i) G1 Execution Services, LLC (ii) SIG Brokerage, LP (iii) Susquehanna Fundamental Investments, LLC (iv) Susquehanna Securities, LLC
(b)	Address or principal business office or, if none, residence: The address of the principal business office of G1 Execution Services, LLC is: 175 W. Jackson Blvd. Suite 1700 Chicago, IL 60604 The address of the principal business office of each of SIG Brokerage, LP, Susquehanna Fundamental Investments, LLC and Susquehanna Securities, LLC is: 401 E. City Avenue Suite 220 Bala Cynwyd, PA 19004
(c)	Citizenship: Citizenship is set forth in Row 4 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
(d)	Title of class of securities: Common Shares, 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: The information required by this Item 4(a) is set forth in Row 9 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. The number of Shares reported as beneficially owned by SIG Brokerage, LP consists of options to buy Shares. The number of Shares reported as beneficially owned by Susquehanna Securities, LLC includes options to buy 9,122,200 Shares. Exhibit 99.2 to the Company's Report of Foreign Private Issuer on Form 6-K, filed on August 13, 2026, indicates there were 173,035,169 Shares outstanding as of June 30, 2026.
(b)	Percent of class: 5.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by this Item 4(c)(i) is set forth in Row 5 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(ii) Shared power to vote or to direct the vote: The information required by this Item 4(c)(ii) is set forth in Row 6 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(iii) Sole power to dispose or to direct the disposition of: The information required by this Item 4(c)(iii) is set forth in Row 7 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: The information required by this Item 4(c)(iv) is set forth in Row 8 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
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 acquired and are held in the ordinary course of business and 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.

G1 Execution Services, LLC

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Secretary
Date:	08/14/2026

SIG Brokerage, LP

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Assistant Secretary
Date:	08/14/2026

Susquehanna Fundamental Investments, LLC

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Assistant Secretary
Date:	08/14/2026

Susquehanna Securities, LLC

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Secretary
Date:	08/14/2026

Exhibit Information

EXHIBIT INDEX EXHIBIT DESCRIPTION ________ ________ 99 Joint Filing Agreement