As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of MultiSensor AI Holdings, Inc. The largest reported stake is 325 Capital LLC's, at 49.5%. 8 filings are on record since July 29, 2025 (Schedule 13D/A, December 23, 2025).
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Key facts
- · Reporting person: Ayrton Capital LLC · Sole voting: 4,890,450 · Shared voting: 0 · Sole dispositive: 4,890,450 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-05-11
- · Holder: Ayrton Capital LLC · Percent: 9.99% · SCHEDULE 13G
- · Reporting person: 325 Capital Master Fund LP · Sole voting: 0 · Shared voting: 11,565,933 · Sole dispositive: 0 · Shared dispositive: 11,565,933 · SCHEDULE 13D/A, 2025-12-23
- · Holder: 325 Capital LLC · Percent: 27.9% · SCHEDULE 13D/A
- · Holder: 325 Capital LLC · Percent: 31.2% · SCHEDULE 13D/A
MultiSensor AI Holdings, Inc. has 8 Schedule 13D or 13G filings on record since 2025-07-29. 3 holders' latest filing reports 5% or more of common stock, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 325 Capital LLC | 49.5% | 52,482,019 | SCHEDULE 13D/A, 2025-12-23 | 2025-12-19 |
| 9.9% | 3,315,093 | SCHEDULE 13D/A, 2025-08-01 | 2025-07-21 | |
| Ayrton Capital LLC | 5.73% | 4,890,450 | SCHEDULE 13G/A, 2026-05-11 | 2026-03-31 |
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More on MultiSensor AI Holdings, Inc. and the records around it.
MultiSensor AI Holdings, Inc. elsewhere on the record
- Form D filing Nov 2025
- Who owns it
Companies that share a holder
- 325 Capital Master Fund LP also filed stake reports on 2 other companies: AMERICAN PUBLIC EDUCATION INC (Mar 2026), ASTRONICS CORP (Jan 2026)
- Ayrton Capital LLC also filed stake reports on 31 other companies: Bluejay Diagnostics, Inc. (Aug 2026), BTC Digital Ltd. (Aug 2026), DEFSEC Technologies Inc. (Aug 2026)
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What the Full Report on MultiSensor AI Holdings, Inc. covers
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| 325 Capital Master Fund LP | 0 | 11,565,933 | 0 | 11,565,933 | SCHEDULE 13D/A, 2025-12-23 |
| 325 Capital GP, LLC | 0 | 11,565,933 | 0 | 11,565,933 | SCHEDULE 13D/A, 2025-12-23 |
| 325 Capital LLC | 0 | 52,482,019 | 0 | 52,482,019 | SCHEDULE 13D/A, 2025-12-23 |
| Braner Michael David | 0 | 52,482,019 | 0 | 52,482,019 | SCHEDULE 13D/A, 2025-12-23 |
| Friedberg Daniel M. | 0 | 52,482,019 | 0 | 52,482,019 | SCHEDULE 13D/A, 2025-12-23 |
| Shrivastava Anil K | 0 | 52,482,019 | 0 | 52,482,019 | SCHEDULE 13D/A, 2025-12-23 |
| Ayrton Capital LLC | 4,890,450 | 0 | 4,890,450 | 0 | SCHEDULE 13G/A, 2026-05-11 |
| Alto Opportunity Master Fund, SPC - Segregated Master Portfolio B | 4,890,450 | 0 | 4,890,450 | 0 | SCHEDULE 13G/A, 2026-05-11 |
| Waqas Khatri | 4,890,450 | 0 | 4,890,450 | 0 | SCHEDULE 13G/A, 2026-05-11 |
The latest filing identifies MultiSensor AI Holdings, Inc. by CUSIP 456948108 and gives its principal executive office as 2105 West Cardinal Drive, Beaumont, TX 77705 (SCHEDULE 13G/A, 2026-05-11).
What the percentages are based on
The percentages below are based on (i) 80,491,889 shares of Common Stock of the Issuer that were outstanding as of March 9, 2026; and (ii) 4,889,976 shares of Common Stock issuable on the exercise of the Warrants held by the Reporting Persons. The amount of shares outstanding was based upon a statement in the Issuer's 10-K filed on March 19, 2026.Ayrton Capital LLC, SCHEDULE 13G/A, 2026-05-11
Source of funds (Item 3)
Item 3 is hereby amended and restated to read as follows: The Reporting Persons acquired 9,375,000 of the Shares reported owned herein pursuant to the Purchase Agreement (as defined in the Schedule 13D) in connection with the Private Placement (as defined in the Schedule 13D) and upon the exercise of the Pre-Funded Warrants acquired pursuant to the Purchase Agreement in connection with the Private Placement.325 Capital LLC, SCHEDULE 13D/A, 2025-12-23
Purpose of Transaction (Item 4)
325 Capital LLC
Item 4 is hereby amended to add the following: On December 19, 2025, the Issuer obtained the Stockholder Approval and, thereafter, issued 13,629,466 Shares and Warrants to purchase 27,258,932 Shares to the Reporting Persons and the SMAs in connection with the Second Closing, which occurred on December 23, 2025, Pursuant to the 2025 Purchase Agreement.Item 4 of the SCHEDULE 13D/A filed 2025-12-23
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-29 | Strahan Gary Eugene | 9.9% | SCHEDULE 13D/A |
| 2025-08-01 | Strahan Gary Eugene | 9.9% | SCHEDULE 13D/A |
| 2025-10-28 | 325 Capital LLC | 31.2% | SCHEDULE 13D/A |
| 2025-11-03 | 325 Capital LLC | 31.2% | SCHEDULE 13D/A |
| 2025-11-07 | 325 Capital LLC | 27.9% | SCHEDULE 13D/A |
| 2025-12-23 | 325 Capital LLC | 49.5% | SCHEDULE 13D/A |
| 2026-02-11 | Ayrton Capital LLC | 9.99% | SCHEDULE 13G |
| 2026-05-11 | Ayrton Capital LLC | 5.73% | SCHEDULE 13G/A |
Questions about who owns MultiSensor AI Holdings, Inc.
Who owns MultiSensor AI Holdings, Inc.?
On this page, 3 holders' latest ownership filings report 5% or more of MultiSensor AI Holdings, Inc.: 325 Capital LLC (49.5%, Schedule 13D/A, filed 2025-12-23), Strahan Gary Eugene (9.9%, Schedule 13D/A, filed 2025-08-01) and Ayrton Capital LLC (5.73%, Schedule 13G/A, filed 2026-05-11).
Who are the largest shareholders of MultiSensor AI Holdings, Inc.?
By the share each holder's latest filing reports, the largest holders of MultiSensor AI Holdings, Inc. on this page are 325 Capital LLC (49.5%), Strahan Gary Eugene (9.9%) and Ayrton Capital LLC (5.73%).
When did 325 Capital LLC buy into MultiSensor AI Holdings, Inc.?
The filings give report dates, not purchase dates. The earliest filing from 325 Capital LLC on this page is the Schedule 13D/A, filed 2025-10-28, reporting 31.2%; its latest, Schedule 13D/A filed 2025-12-23, reports 49.5%. 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%); 8 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 MultiSensor AI Holdings, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 17, 2025 | Form D, private offering | $14M sold | Form D page | 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.