As of November 7, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Sidus Space Inc. The largest reported stake is BlackRock, Inc.'s, at 6.7%. 7 filings are on record since December 31, 2025 (Schedule 13G, July 30, 2026).
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Key facts
- · Reporting person: Vanguard Capital Management · Sole voting: 662,371 · Shared voting: 0 · Sole dispositive: 5,096,801 · Shared dispositive: 0 · SCHEDULE 13G, 2026-10-30
- · Holder: Vanguard Capital Management · Percent: 4.24% · SCHEDULE 13G/A
- · Reporting person: BlackRock, Inc. · Sole voting: 6,361,289 · Shared voting: 0 · Sole dispositive: 6,479,638 · Shared dispositive: 0 · SCHEDULE 13G, 2026-07-30
- · Holder: Vanguard Capital Management · Percent: 5.66% · SCHEDULE 13G
- · Reporting person: Citadel Advisors LLC · Sole voting: 0 · Shared voting: 3,071,391 · Sole dispositive: 0 · Shared dispositive: 3,071,391 · SCHEDULE 13G, 2026-04-28
Sidus Space Inc has 7 Schedule 13D or 13G filings on record since 2025-12-31. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 6.7% | 6,479,638 | SCHEDULE 13G, 2026-07-30 | 2026-06-30 |
| Vanguard Capital Management | 5.04% | 5,096,801 | SCHEDULE 13G, 2026-10-30 | 2026-09-30 |
| 4% | 3,210,428 | SCHEDULE 13G, 2026-04-28 | 2026-04-21 | |
| CVI Investments, Inc. | 0.3% | 214,935 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
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More on Sidus Space Inc and the records around it.
Sidus Space Inc elsewhere on the record
- Leadership changes Jul 2026
- Who owns it
Companies that share a holder
- CVI Investments, Inc. also filed stake reports on 48 other companies: Pine Tree Acquisition Corp. (Oct 2026), Sunshine Biopharma Inc. (Oct 2026), Outlook Therapeutics, Inc. (Aug 2026)
- Citadel Advisors LLC also filed stake reports on 58 other companies: Quantinuum Inc. (Oct 2026), REALLOYS INC. (Oct 2026), STARFIGHTERS SPACE, INC. (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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What the Full Report on Sidus Space Inc covers
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Which Company This Is
What They Do, And How The Money Works
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,361,289 | 0 | 6,479,638 | 0 | SCHEDULE 13G, 2026-07-30 |
| Vanguard Capital Management | 662,371 | 0 | 5,096,801 | 0 | SCHEDULE 13G, 2026-10-30 |
| Citadel Advisors LLC | 0 | 3,071,391 | 0 | 3,071,391 | SCHEDULE 13G, 2026-04-28 |
| Citadel Advisors Holdings LP | 0 | 3,071,391 | 0 | 3,071,391 | SCHEDULE 13G, 2026-04-28 |
| Citadel GP LLC | 0 | 3,071,391 | 0 | 3,071,391 | SCHEDULE 13G, 2026-04-28 |
| Citadel Securities LLC | 0 | 139,037 | 0 | 139,037 | SCHEDULE 13G, 2026-04-28 |
| Citadel Securities Group LP | 0 | 139,037 | 0 | 139,037 | SCHEDULE 13G, 2026-04-28 |
| Citadel Securities GP LLC | 0 | 139,037 | 0 | 139,037 | SCHEDULE 13G, 2026-04-28 |
| Kenneth Griffin | 0 | 3,210,428 | 0 | 3,210,428 | SCHEDULE 13G, 2026-04-28 |
The latest filing identifies Sidus Space Inc by CUSIP 826165201 and gives its principal executive office as 150 North Sykes Creek Parkway, Suite 200, Merritt Island, FL 32953 (SCHEDULE 13G, 2026-10-30).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-12-31 | CVI Investments, Inc. | 7.4% | SCHEDULE 13G |
| 2026-02-17 | CVI Investments, Inc. | 0.3% | SCHEDULE 13G/A |
| 2026-04-28 | Kenneth Griffin | 4% | SCHEDULE 13G |
| 2026-04-30 | Vanguard Capital Management | 5.66% | SCHEDULE 13G |
| 2026-07-30 | BlackRock, Inc. | 6.7% | SCHEDULE 13G |
| 2026-07-31 | Vanguard Capital Management | 4.24% | SCHEDULE 13G/A |
| 2026-10-30 | Vanguard Capital Management | 5.04% | SCHEDULE 13G |
Questions about who owns Sidus Space Inc
Who owns Sidus Space Inc?
On this page, 2 holders' latest ownership filings report 5% or more of Sidus Space Inc: BlackRock, Inc. (6.7%, Schedule 13G, filed 2026-07-30) and Vanguard Capital Management (5.04%, Schedule 13G, filed 2026-10-30).
Who are the largest shareholders of Sidus Space Inc?
By the share each holder's latest filing reports, the largest holders of Sidus Space Inc on this page are BlackRock, Inc. (6.7%) and Vanguard Capital Management (5.04%).
When did BlackRock, Inc. buy into Sidus Space Inc?
The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G, filed 2026-07-30, reporting 6.7%.
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%); 7 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 Sidus Space Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 29, 2026 | Leadership change: Hassan R. Baqar appointed, Director, and 1 more | — | Leadership changes | Source |
| October 9, 2026 | Leadership change: Tiffany Norwood departs | — | Leadership changes | Source |
| October 6, 2026 | Leadership change: Larry G. Swets appointed, Director, and 1 more | — | Leadership changes | Source |
| September 29, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| July 24, 2026 | Leadership change: Alan Khalili appointed, Chief Financial Officer | — | Leadership changes | Source |
| December 31, 2024 | Form D, private offering | $14.12M 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.