As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of York Space Systems Inc. The largest reported stake is AeroEquity GP, LLC's, at 23.96%. 5 filings are on record since April 29, 2026 (Schedule 13G/A, August 14, 2026).
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Key facts
- · Reporting person: BlackRock, Inc. · Sole voting: 7,312,539 · Shared voting: 0 · Sole dispositive: 7,443,476 · Shared dispositive: 0 · SCHEDULE 13G, 2026-10-27
- · Reporting person: AeroEquity GP, LLC · Sole voting: 0 · Shared voting: 32,915,588 · Sole dispositive: 0 · Shared dispositive: 32,915,588 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: Dirk Wallinger · Sole voting: 0 · Shared voting: 11,168,593 · Sole dispositive: 11,168,593 · Shared dispositive: 0 · SCHEDULE 13G, 2026-05-15
- · Holder: AeroEquity GP, LLC · Percent: 23.28% · SCHEDULE 13G
- · Holder: BlackRock Portfolio Management LLC · Percent: 14% · SCHEDULE 13G
York Space Systems Inc has 5 Schedule 13D or 13G filings on record since 2026-04-29. 4 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 |
|---|---|---|---|---|
| AeroEquity GP, LLC | 23.96% | 32,915,588 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| BlackRock Portfolio Management LLC | 14% | 17,846,934 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| 8.6% | 11,168,593 | SCHEDULE 13G, 2026-05-15 | 2026-03-31 | |
| BlackRock, Inc. | 5.4% | 7,443,476 | SCHEDULE 13G, 2026-10-27 | 2026-09-30 |
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More on York Space Systems Inc and the records around it.
York Space Systems Inc elsewhere on the record
- Leadership changes Aug 2026
- Who owns it
Companies that share a holder
- AeroEquity GP, LLC also filed stake reports on 1 other company: Firefly Aerospace Inc. (Aug 2026)
- BlackRock Portfolio Management LLC also filed stake reports on 118 other companies: AMERISAFE INC (Nov 2026), BlackRock ETF Trust (Nov 2026), iShares J.P. Morgan EM Local Currency Bond ETF (Nov 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 |
|---|---|---|---|---|---|
| AeroEquity GP, LLC | 0 | 32,915,588 | 0 | 32,915,588 | SCHEDULE 13G/A, 2026-08-14 |
| Michael Robert Greene | 0 | 32,915,588 | 0 | 32,915,588 | SCHEDULE 13G/A, 2026-08-14 |
| David H. Rowe | 0 | 32,915,588 | 0 | 32,915,588 | SCHEDULE 13G/A, 2026-08-14 |
| Dirk Wallinger | 0 | 11,168,593 | 11,168,593 | 0 | SCHEDULE 13G, 2026-05-15 |
| BlackRock, Inc. | 7,312,539 | 0 | 7,443,476 | 0 | SCHEDULE 13G, 2026-10-27 |
The latest filing identifies York Space Systems Inc by CUSIP 987084100 and gives its principal executive office as 6060 S Willow Drive, Greenwood Village, CO 80111 (SCHEDULE 13G, 2026-10-27).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-04-29 | BlackRock Portfolio Management LLC | 14% | SCHEDULE 13G |
| 2026-05-15 | AeroEquity GP, LLC | 23.28% | SCHEDULE 13G |
| 2026-05-15 | Dirk Wallinger | 8.6% | SCHEDULE 13G |
| 2026-08-14 | AeroEquity GP, LLC | 23.96% | SCHEDULE 13G/A |
| 2026-10-27 | BlackRock, Inc. | 5.4% | SCHEDULE 13G |
Questions about who owns York Space Systems Inc
Who owns York Space Systems Inc?
On this page, 4 holders' latest ownership filings report 5% or more of York Space Systems Inc: AeroEquity GP, LLC (23.96%, Schedule 13G/A, filed 2026-08-14), BlackRock Portfolio Management LLC (14%, Schedule 13G, filed 2026-04-29), Dirk Wallinger (8.6%, Schedule 13G, filed 2026-05-15) and BlackRock, Inc. (5.4%, Schedule 13G, filed 2026-10-27).
Who are the largest shareholders of York Space Systems Inc?
By the share each holder's latest filing reports, the largest holders of York Space Systems Inc on this page are AeroEquity GP, LLC (23.96%), BlackRock Portfolio Management LLC (14%) and Dirk Wallinger (8.6%).
When did AeroEquity GP, LLC buy into York Space Systems Inc?
The filings give report dates, not purchase dates. The earliest filing from AeroEquity GP, LLC on this page is the Schedule 13G, filed 2026-05-15, reporting 23.28%; its latest, Schedule 13G/A filed 2026-08-14, reports 23.96%.
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%); 5 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 York Space Systems Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| August 5, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| April 14, 2026 | Leadership change: Janine A. Davidson appointed, Director | — | Leadership changes | Source |
| January 30, 2026 | IPO filing, Form 424B4 | — | IPO filings | Source |
| January 26, 2026 | IPO filing, Form S-1/A | $30 to $34 a share | IPO filings | Source |
| January 16, 2026 | IPO filing, Form S-1/A | $30 to $34 a share | IPO filings | Source |
| December 15, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| November 17, 2025 | 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.