As of November 8, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Poet Technologies Inc. The largest reported stake is MMCAP International Inc. SPC's, at 9.99%. 15 filings are on record since August 14, 2025 (Schedule 13G/A, August 14, 2026).
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Key facts
- · Reporting person: Group One Trading LLC · Sole voting: 1,255,050 · Shared voting: 0 · Sole dispositive: 1,255,050 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-09-08
- · Reporting person: MMCAP International Inc. SPC · Sole voting: 0 · Shared voting: 19,155,361 · Sole dispositive: 0 · Shared dispositive: 19,155,361 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: G1 Execution Services, LLC · Sole voting: 14 · Shared voting: 9,808,403 · Sole dispositive: 14 · Shared dispositive: 9,808,403 · SCHEDULE 13G, 2026-08-14
- · Reporting person: Jane Street Group, LLC · Sole voting: 0 · Shared voting: 9,514,777 · Sole dispositive: 0 · Shared dispositive: 9,514,777 · SCHEDULE 13G/A, 2026-08-13
- · Holder: Group One Trading LLC · Percent: 5.5% · SCHEDULE 13G
Poet Technologies Inc. has 15 Schedule 13D or 13G filings on record since 2025-08-14. 5 holders' latest filing reports 5% or more of common shares, no par value. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| MMCAP International Inc. SPC | 9.99% | 19,155,361 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Marex Securities Products Inc. | 6% | 9,150,000 | SCHEDULE 13G, 2026-05-19 | 2026-05-14 |
| 5.9% | 10,110,970 | SCHEDULE 13G, 2026-07-08 | 2026-06-30 | |
| G1 Execution Services, LLC | 5.7% | 9,808,403 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Jane Street Group, LLC | 5.5% | 9,514,777 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| Group One Trading LLC | 0.7% | 1,255,050 | SCHEDULE 13G/A, 2026-09-08 | 2026-08-31 |
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More on Poet Technologies Inc. and the records around it.
Poet Technologies Inc. elsewhere on the record
Companies that share a holder
- GROUP ONE TRADING LLC also filed stake reports on 2 other companies: Quince Therapeutics, Inc. (Mar 2026)
- Marex Securities Products Inc. also filed stake reports on 5 other companies: APPLIED OPTOELECTRONICS, INC. (May 2026), AXT INC (May 2026), UPEXI, INC. (Jan 2026)
- Citadel Securities GP LLC also filed stake reports on 24 other companies: CIPHER DIGITAL INC. (Oct 2026), First Solar, Inc. (Oct 2026), AmpliTech Group, Inc. (Oct 2026)
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What the Full Report on Poet Technologies Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
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The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| MMCAP International Inc. SPC | 0 | 19,155,361 | 0 | 19,155,361 | SCHEDULE 13G/A, 2026-08-14 |
| MM Asset Management Inc. | 0 | 19,155,361 | 0 | 19,155,361 | SCHEDULE 13G/A, 2026-08-14 |
| Citadel Securities GP LLC | 0 | 10,085,671 | 0 | 10,085,671 | SCHEDULE 13G, 2026-07-08 |
| Citadel Securities LLC | 0 | 8,792,484 | 0 | 8,792,484 | SCHEDULE 13G, 2026-07-08 |
| Citadel Securities Group LP | 0 | 10,085,671 | 0 | 10,085,671 | SCHEDULE 13G, 2026-07-08 |
| Citadel Advisors LLC | 0 | 25,299 | 0 | 25,299 | SCHEDULE 13G, 2026-07-08 |
| Citadel Advisors Holdings LP | 0 | 25,299 | 0 | 25,299 | SCHEDULE 13G, 2026-07-08 |
| Citadel GP LLC | 0 | 25,299 | 0 | 25,299 | SCHEDULE 13G, 2026-07-08 |
| Kenneth Griffin | 0 | 10,110,970 | 0 | 10,110,970 | SCHEDULE 13G, 2026-07-08 |
| G1 Execution Services, LLC | 14 | 9,808,403 | 14 | 9,808,403 | SCHEDULE 13G, 2026-08-14 |
| SIG Brokerage, LP | 38,800 | 9,808,403 | 38,800 | 9,808,403 | SCHEDULE 13G, 2026-08-14 |
| Susquehanna Fundamental Investments, LLC | 182,982 | 9,808,403 | 182,982 | 9,808,403 | SCHEDULE 13G, 2026-08-14 |
| Susquehanna Securities, LLC | 9,586,607 | 9,808,403 | 9,586,607 | 9,808,403 | SCHEDULE 13G, 2026-08-14 |
| Jane Street Group, LLC | 0 | 9,514,777 | 0 | 9,514,777 | SCHEDULE 13G/A, 2026-08-13 |
| Jane Street Capital, LLC | 0 | 8,714,386 | 0 | 8,714,386 | SCHEDULE 13G/A, 2026-08-13 |
| Jane Street Global Trading, LLC | 0 | 800,391 | 0 | 800,391 | SCHEDULE 13G/A, 2026-08-13 |
| Group One Trading LLC | 1,255,050 | 0 | 1,255,050 | 0 | SCHEDULE 13G/A, 2026-09-08 |
The latest filing identifies Poet Technologies Inc. by CUSIP 73044W302 and gives its principal executive office as 120 EGLINTON AVENUE EAST, TORONTO, ONTARIO (SCHEDULE 13G/A, 2026-09-08).
What the percentages are based on
See Item 11 on the cover page for each Reporting Person. The percentages of beneficial ownership contained herein are based on: (x) 172,590,000 Common Shares outstanding as of June 26, 2026, as reported by the Issuer in a Form 6-K filed with the SEC on June 30, 2026; and (y) the Common Shares underlying the warrants described in Item 4(a) above.MMCAP International Inc. SPC, SCHEDULE 13G/A, 2026-08-14
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | MMCAP International Inc. SPC | 9.99% | SCHEDULE 13G/A |
| 2025-10-09 | MMCAP International Inc. SPC | 16.2% | SCHEDULE 13G/A |
| 2025-10-09 | MMCAP International Inc. SPC | 9.99% | SCHEDULE 13G/A |
| 2025-10-10 | MMCAP International Inc. SPC | 9.99% | SCHEDULE 13G/A |
| 2026-02-17 | MMCAP International Inc. SPC | 9.99% | SCHEDULE 13G/A |
| 2026-05-15 | MMCAP International Inc. SPC | 9.99% | SCHEDULE 13G/A |
| 2026-05-19 | Marex Securities Products Inc. | 6% | SCHEDULE 13G |
| 2026-05-20 | MMCAP International Inc. SPC | 11% | SCHEDULE 13G/A |
| 2026-06-22 | Jane Street Group, LLC | 6.8% | SCHEDULE 13G |
| 2026-07-08 | Kenneth Griffin | 5.9% | SCHEDULE 13G |
| 2026-08-13 | Group One Trading LLC | 5.5% | SCHEDULE 13G |
| 2026-08-13 | Jane Street Group, LLC | 5.5% | SCHEDULE 13G/A |
| 2026-08-14 | MMCAP International Inc. SPC | 9.99% | SCHEDULE 13G/A |
| 2026-08-14 | G1 Execution Services, LLC | 5.7% | SCHEDULE 13G |
| 2026-09-08 | Group One Trading LLC | 0.7% | SCHEDULE 13G/A |
Questions about who owns Poet Technologies Inc.
Who owns Poet Technologies Inc.?
On this page, 5 holders' latest ownership filings report 5% or more of Poet Technologies Inc.: MMCAP International Inc. SPC (9.99%, Schedule 13G/A, filed 2026-08-14), Marex Securities Products Inc. (6%, Schedule 13G, filed 2026-05-19), Kenneth Griffin (5.9%, Schedule 13G, filed 2026-07-08), G1 Execution Services, LLC (5.7%, Schedule 13G, filed 2026-08-14) and Jane Street Group, LLC (5.5%, Schedule 13G/A, filed 2026-08-13).
Who are the largest shareholders of Poet Technologies Inc.?
By the share each holder's latest filing reports, the largest holders of Poet Technologies Inc. on this page are MMCAP International Inc. SPC (9.99%), Marex Securities Products Inc. (6%) and Kenneth Griffin (5.9%).
When did MMCAP International Inc. SPC buy into Poet Technologies Inc.?
The filings give report dates, not purchase dates. The earliest filing from MMCAP International Inc. SPC on this page is the Schedule 13G/A, filed 2025-08-14, reporting 9.99%; its latest, Schedule 13G/A filed 2026-08-14, reports 9.99%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 15 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.