As of November 10, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Axt Inc. The largest reported stake is BlackRock, Inc.'s, at 14.3%. 10 filings are on record since April 29, 2026 (Schedule 13G/A, October 5, 2026).
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Key facts
- · Reporting person: Jane Street Group, LLC · Sole voting: 0 · Shared voting: 4,246,421 · Sole dispositive: 0 · Shared dispositive: 4,246,421 · SCHEDULE 13G, 2026-11-09
- · Holder: Jane Street Group, LLC · Percent: 4.2% · SCHEDULE 13G/A
- · Reporting person: BlackRock, Inc. · Sole voting: 9,254,836 · Shared voting: 0 · Sole dispositive: 9,359,639 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-05
- · Holder: Jane Street Group, LLC · Percent: 6.7% · SCHEDULE 13G/A
- · Holder: BlackRock, Inc. · Percent: 7.1% · SCHEDULE 13G
Axt Inc has 10 Schedule 13D or 13G filings on record since 2026-04-29. 4 holders' latest filing reports 5% or more of common stock, $0.001 par value. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 14.3% | 9,359,639 | SCHEDULE 13G/A, 2026-10-05 | 2026-09-30 |
| Marex Securities Products Inc. | 7.2% | 4,005,709 | SCHEDULE 13G, 2026-05-06 | 2026-05-01 |
| Jane Street Group, LLC | 6.5% | 4,246,421 | SCHEDULE 13G, 2026-11-09 | 2026-11-03 |
| E20 Capital Ltd | 5.5% | 2,586,756 | SCHEDULE 13G, 2026-05-18 | 2025-11-21 |
| 1.1% | 588,210 | SCHEDULE 13G/A, 2026-05-08 | 2026-03-31 |
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More on Axt Inc and the records around it.
Axt Inc elsewhere on the record
- Leadership changes Jul 2026
- Who owns it
Companies that share a holder
- Cleveland Capital Management, L.L.C. also filed stake reports on 2 other companies: Flux Power Holdings, Inc. (Jul 2026), VIRCO MFG CORPORATION (Jul 2026)
- Marex Securities Products Inc. also filed stake reports on 5 other companies: POET TECHNOLOGIES INC. (May 2026), APPLIED OPTOELECTRONICS, INC. (May 2026), UPEXI, INC. (Jan 2026)
- JANE STREET GROUP, LLC also filed stake reports on 73 other companies: BIOVIE INC. (Nov 2026), Bitdeer Technologies Group (Nov 2026), Bloom Energy Corp (Nov 2026)
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What the Full Report on Axt Inc covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,254,836 | 0 | 9,359,639 | 0 | SCHEDULE 13G/A, 2026-10-05 |
| Jane Street Group, LLC | 0 | 4,246,421 | 0 | 4,246,421 | SCHEDULE 13G, 2026-11-09 |
| Jane Street Capital, LLC | 0 | 3,433,883 | 0 | 3,433,883 | SCHEDULE 13G, 2026-11-09 |
| Jane Street Global Trading, LLC | 0 | 812,538 | 0 | 812,538 | SCHEDULE 13G, 2026-11-09 |
| E20 Capital Ltd | 2,586,756 | 0 | 2,586,756 | 0 | SCHEDULE 13G, 2026-05-18 |
The latest filing identifies Axt Inc by CUSIP 00246W103 and gives its principal executive office as 4281 TECHNOLOGY DR., FREMONT, CA 94538 (SCHEDULE 13G, 2026-11-09).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-04-29 | Jane Street Group, LLC | 5.1% | SCHEDULE 13G |
| 2026-04-29 | Jane Street Group, LLC | 7.5% | SCHEDULE 13G/A |
| 2026-05-06 | Marex Securities Products Inc. | 7.2% | SCHEDULE 13G |
| 2026-05-08 | Wade Massad | 1.1% | SCHEDULE 13G/A |
| 2026-05-18 | E20 Capital Ltd | 5.5% | SCHEDULE 13G |
| 2026-07-27 | BlackRock, Inc. | 7.1% | SCHEDULE 13G |
| 2026-08-12 | Jane Street Group, LLC | 6.7% | SCHEDULE 13G/A |
| 2026-10-05 | BlackRock, Inc. | 14.3% | SCHEDULE 13G/A |
| 2026-11-06 | Jane Street Group, LLC | 4.2% | SCHEDULE 13G/A |
| 2026-11-09 | Jane Street Group, LLC | 6.5% | SCHEDULE 13G |
Questions about who owns Axt Inc
Who owns Axt Inc?
On this page, 4 holders' latest ownership filings report 5% or more of Axt Inc: BlackRock, Inc. (14.3%, Schedule 13G/A, filed 2026-10-05), Marex Securities Products Inc. (7.2%, Schedule 13G, filed 2026-05-06), Jane Street Group, LLC (6.5%, Schedule 13G, filed 2026-11-09) and E20 Capital Ltd (5.5%, Schedule 13G, filed 2026-05-18).
Who are the largest shareholders of Axt Inc?
By the share each holder's latest filing reports, the largest holders of Axt Inc on this page are BlackRock, Inc. (14.3%), Marex Securities Products Inc. (7.2%) and Jane Street Group, LLC (6.5%).
When did BlackRock, Inc. buy into Axt Inc?
The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G, filed 2026-07-27, reporting 7.1%; its latest, Schedule 13G/A filed 2026-10-05, reports 14.3%.
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%); 10 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.
Also on the record for Axt Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| July 22, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| June 22, 2026 | Leadership change: Tracy Liu appointed, Director | — | Leadership changes | Source |
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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.