As of November 6, 2026, York Space Systems Inc. is a publicly traded company (NYSE: YSS); its largest reported holder is AeroEquity GP, LLC, with 23.96% on Schedule 13G/A of August 14, 2026, then BlackRock (14%) (Schedule 13G/A, August 14, 2026).
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Is York Space Systems Inc. a real, registered company?
- York Space Systems Inc. files with the SEC under CIK 2086587 (its SEC filings).
- Its shares are listed under the ticker YSS on NYSE (SEC company record).
- Incorporated in Delaware; business address in Greenwood Village, Colorado, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under YORK SPACE SYSTEMS INC in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Janine A. Davidson, Director (Form 8-K filed 2026-04-14). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names BlackRock (filed 2026-10-27).
Who are York Space Systems Inc.'s owners and officers?
York Space Systems Inc.: incorporated in Delaware; business address in Greenwood Village, Colorado; industry Guided Missiles & Space Vehicles & Parts (Schedule 13G, 2026-10-27).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-10-27 | Blackrock, Inc. | 5.4% |
| Schedule 13G/A, 2026-08-14 | Aeroequity Gp, LLC | 23.96% |
| Schedule 13G, 2026-05-15 | Aeroequity Gp, LLC | 23.28% |
| Schedule 13G, 2026-05-15 | Dirk Wallinger | 8.6% |
| Schedule 13G, 2026-04-29 | Blackrock Portfolio Management LLC | 14% |
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.
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-04-14 | Janine A. Davidson | Director | appointed |
Which insiders own York Space Systems Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- Aeroequity GP, LLC, a 10% owner: 32,915,588 shares (24.0% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 4, 2026-07-10).
- , a 10% owner: 32,915,588 shares (24.0% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 4, 2026-07-10).
- , a 10% owner: 32,915,588 shares (24.0% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 4, 2026-07-10).
- BlackRock, a 10% owner: 16,517,115 shares (12.0% of shares outstanding), held indirectly (the form names the holder only in its footnotes) (Form 4, 2026-08-10).
- , the chief executive and a director: 9,783,222 shares (7.1% of shares outstanding) (Form 4/A, 2026-03-11).
Shares outstanding: 137,357,605 as of 2026-08-12, from the company's latest SEC cover page.
How much has York Space Systems Inc. raised?
Latest IPO step: York Space Systems Inc. filed its final IPO prospectus, ticker YSS (424B4, 2026-01-30).
IPO filings: 424B4, 2026-01-30, S-1/A, 2026-01-26, S-1/A, 2026-01-16, S-1/A, 2025-12-15, S-1, 2025-11-17; ticker YSS on New York Stock Exchange.
Keep reading
More on York Space Systems Inc. and the records around it.
York Space Systems Inc. elsewhere on the record
- 5%+ stake filings Oct 2026
- Leadership changes Aug 2026
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)
Related pages
Leadership changes5%+ holdersIPO filings
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