As of November 10, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Archimedes Tech Spac Partners Ii Co. The largest reported stake is The Goldman Sachs Group, Inc.'s, at 6.4%. 6 filings are on record since August 12, 2025 (Schedule 13G, November 9, 2026).
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Key facts
- · Reporting person: The Goldman Sachs Group, Inc. · Sole voting: 0 · Shared voting: 1,911,441 · Sole dispositive: 0 · Shared dispositive: 1,911,441 · SCHEDULE 13G, 2026-11-09
- · Reporting person: Tenor Capital Management Company, L.P. · Sole voting: 0 · Shared voting: 1,367,830 · Sole dispositive: 0 · Shared dispositive: 1,367,830 · SCHEDULE 13G/A, 2026-08-14
- · Holder: Barclays PLC · Percent: 3.88% · SCHEDULE 13G/A
- · Holder: Tenor Capital Management Company, L.P. · Percent: 5.1% · SCHEDULE 13G/A
- · Holder: Sculptor Capital LP · Percent: 4.39% · SCHEDULE 13G/A
Archimedes Tech Spac Partners Ii Co. has 6 Schedule 13D or 13G filings on record since 2025-08-12. 1 holder's latest filing reports 5% or more of ordinary shares, 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 |
|---|---|---|---|---|
| The Goldman Sachs Group, Inc. | 6.4% | 1,911,441 | SCHEDULE 13G, 2026-11-09 | 2026-09-30 |
| Tenor Capital Management Company, L.P. | 4.6% | 1,367,830 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Sculptor Capital LP | 4.39% | 1,300,000 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Barclays PLC | 3.88% | 1,148,590 | SCHEDULE 13G/A, 2026-02-11 | 2025-12-31 |
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More on Archimedes Tech Spac Partners Ii Co. and the records around it.
Companies that share a holder
- Sculptor Capital LP also filed stake reports on 40 other companies: Helix Acquisition Corp. III (Oct 2026), Live Oak Acquisition Corp. VI (Oct 2026), Amanat Acquisition Corp (Aug 2026)
- Tenor Capital Management Company, L.P. also filed stake reports on 41 other companies: Armada Acquisition Corp. II (Aug 2026), Blue Acquisition Corp. (Aug 2026), Cartesian Growth Corporation III (Aug 2026)
- Barclays PLC also filed stake reports on 116 other companies: BIGLARI HOLDINGS INC-B (Nov 2026), CABLE ONE INC (Nov 2026), CALISA ACQUISITION CORP (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| The Goldman Sachs Group, Inc. | 0 | 1,911,441 | 0 | 1,911,441 | SCHEDULE 13G, 2026-11-09 |
| Goldman Sachs & Co. LLC | 0 | 1,911,441 | 0 | 1,911,441 | SCHEDULE 13G, 2026-11-09 |
| Tenor Capital Management Company, L.P. | 0 | 1,367,830 | 0 | 1,367,830 | SCHEDULE 13G/A, 2026-08-14 |
| Tenor Opportunity Master Fund, Ltd. | 0 | 1,367,830 | 0 | 1,367,830 | SCHEDULE 13G/A, 2026-08-14 |
| Robin Shah | 0 | 1,367,830 | 0 | 1,367,830 | SCHEDULE 13G/A, 2026-08-14 |
The latest filing identifies Archimedes Tech Spac Partners Ii Co. by CUSIP G04537109 and gives its principal executive office as 2093 Philadelphia Pike #1968, Claymont (SCHEDULE 13G, 2026-11-09).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-12 | Barclays PLC | 6.3% | SCHEDULE 13G |
| 2025-08-14 | Sculptor Capital LP | 4.39% | SCHEDULE 13G/A |
| 2025-11-07 | Tenor Capital Management Company, L.P. | 5.1% | SCHEDULE 13G/A |
| 2026-02-11 | Barclays PLC | 3.88% | SCHEDULE 13G/A |
| 2026-08-14 | Tenor Capital Management Company, L.P. | 4.6% | SCHEDULE 13G/A |
| 2026-11-09 | The Goldman Sachs Group, Inc. | 6.4% | SCHEDULE 13G |
Questions about who owns Archimedes Tech Spac Partners Ii Co.
Who owns Archimedes Tech Spac Partners Ii Co.?
On this page, one holder's latest ownership filing reports 5% or more of Archimedes Tech Spac Partners Ii Co.: The Goldman Sachs Group, Inc. (6.4%, Schedule 13G, filed 2026-11-09).
When did The Goldman Sachs Group, Inc. buy into Archimedes Tech Spac Partners Ii Co.?
The filings give report dates, not purchase dates. The earliest filing from The Goldman Sachs Group, Inc. on this page is the Schedule 13G, filed 2026-11-09, reporting 6.4%.
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%); 6 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 Archimedes Tech Spac Partners Ii Co.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| February 11, 2025 | IPO filing, Form 424B4 | $10 a share | IPO filings | Source |
| February 5, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 3, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| January 21, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| November 27, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| October 30, 2024 | IPO filing, Form S-1 | — | IPO filings | 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.