As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Ses Ai Corp. The largest reported stake is Tianqi Lithium HK Co., Ltd.'s, at 7.8%. 3 filings are on record since November 10, 2025 (Schedule 13G/A, January 21, 2026).
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Key facts
- · Reporting person: BlackRock, Inc. · Sole voting: 18,650,760 · Shared voting: 0 · Sole dispositive: 18,829,305 · Shared dispositive: 0 · SCHEDULE 13G, 2026-07-30
- · Reporting person: Tianqi Lithium HK Co., Ltd. · Sole voting: 24,922,386 · Shared voting: 0 · Sole dispositive: 24,922,386 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-01-21
- · Reporting person: Temasek Holdings (Private) Limited · Sole voting: 0 · Shared voting: 3,160,712 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2025-11-10
Ses Ai Corp has 3 Schedule 13D or 13G filings on record since 2025-11-10. 2 holders' latest filing reports 5% or more of class a stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Tianqi Lithium HK Co., Ltd. | 7.8% | 24,922,386 | SCHEDULE 13G/A, 2026-01-21 | 2025-12-31 |
| BlackRock, Inc. | 5.8% | 18,829,305 | SCHEDULE 13G, 2026-07-30 | 2026-06-30 |
| Temasek Holdings (Private) Limited | 1% | 3,160,712 | SCHEDULE 13G/A, 2025-11-10 | 2025-09-30 |
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More on Ses Ai Corp and the records around it.
Ses Ai Corp elsewhere on the record
- Leadership changes Aug 2026
- Who owns it
Companies that share a holder
- Temasek Holdings (Private) Limited also filed stake reports on 8 other companies: Pasqal Holding SA (Oct 2026), Flywire Corporation (Jul 2026), Amber International Holding Limited (Jun 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Tianqi Lithium HK Co., Ltd. | 24,922,386 | 0 | 24,922,386 | 0 | SCHEDULE 13G/A, 2026-01-21 |
| Tianqi Lithium Corporation | 24,922,386 | — | 24,922,386 | — | SCHEDULE 13G/A, 2026-01-21 |
| BlackRock, Inc. | 18,650,760 | 0 | 18,829,305 | 0 | SCHEDULE 13G, 2026-07-30 |
| Temasek Holdings (Private) Limited | 0 | 3,160,712 | 0 | 0 | SCHEDULE 13G/A, 2025-11-10 |
| Tembusu Capital Pte. Ltd. | 0 | 2,595,854 | 0 | 0 | SCHEDULE 13G/A, 2025-11-10 |
| Thomson Capital Pte. Ltd. | 0 | 2,595,854 | 0 | 0 | SCHEDULE 13G/A, 2025-11-10 |
| Anderson Investments Pte. Ltd. | 0 | 2,595,854 | 0 | 0 | SCHEDULE 13G/A, 2025-11-10 |
The latest filing identifies Ses Ai Corp by CUSIP 78397Q109 and gives its principal executive office as 35 Cabot Road, Woburn, MA 01801 (SCHEDULE 13G, 2026-07-30).
What the percentages are based on
As of November 6, 2025: Temasek: 1.0% Tembusu, Thomson and Anderson: 0.8% Based on 320,896,206 shares of Class A common stock of the Issuer outstanding as of August 25, 2025, as set forth in the Issuer's Proxy Statement.Temasek Holdings (Private) Limited, SCHEDULE 13G/A, 2025-11-10
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-10 | Temasek Holdings (Private) Limited | 1% | SCHEDULE 13G/A |
| 2026-01-21 | Tianqi Lithium HK Co., Ltd. | 7.8% | SCHEDULE 13G/A |
| 2026-07-30 | BlackRock, Inc. | 5.8% | SCHEDULE 13G |
Questions about who owns Ses Ai Corp
Who owns Ses Ai Corp?
On this page, 2 holders' latest ownership filings report 5% or more of Ses Ai Corp: Tianqi Lithium HK Co., Ltd. (7.8%, Schedule 13G/A, filed 2026-01-21) and BlackRock, Inc. (5.8%, Schedule 13G, filed 2026-07-30).
Who are the largest shareholders of Ses Ai Corp?
By the share each holder's latest filing reports, the largest holders of Ses Ai Corp on this page are Tianqi Lithium HK Co., Ltd. (7.8%) and BlackRock, Inc. (5.8%).
When did Tianqi Lithium HK Co., Ltd. buy into Ses Ai Corp?
The filings give report dates, not purchase dates. The earliest filing from Tianqi Lithium HK Co., Ltd. on this page is the Schedule 13G/A, filed 2026-01-21, reporting 7.8%. 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%); 3 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 Ses Ai Corp
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| August 11, 2026 | Leadership change: Paul Diemer appointed, Director | — | Leadership changes | Source |
| April 23, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | 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.