York Space Systems Inc. (YSS) Stock

IndustrialsAerospace & Defense Website

5 of the hedge funds AlphaScala tracks reported YSS in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Blackstone's at $3.69M. Company insiders reported 0 open-market buys and 14 sales on SEC Form 4 in the 90 days to Oct 21, 2026.

Which hedge funds own YSS?

From 13F filings
FundShares HeldPosition ValueChange vs prior Q
Blackstone150K$3.69Mn/a
Millennium Management
Israel Englander
41K$1.02MNEW
Marshall Wace33K$800.5KNEW
Citadel
Ken Griffin
27K$671.7K-97%
Soros Fund Management
George Soros (founder)
11K$276.9KNEW

13F holdings as of Jun 30, 2026

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Are York Space Systems Inc. insiders buying or selling?

SEC Form 4 filings
90 days to Oct 21, 2026
Buys
0
Sells
14
Net $
-$28.6M
Unique insiders
1
DateInsiderRoleTypeSharesValue
Aug 7, 26Blackrock Portfolio Management Llc10%+ OwnerSELL200.2K$2.2M
Aug 6, 26Blackrock Portfolio Management Llc10%+ OwnerSELL201.5K$2.3M
Aug 5, 26Blackrock Portfolio Management Llc10%+ OwnerSELL116.2K$1.6M
Aug 5, 26Blackrock Portfolio Management Llc10%+ OwnerSELL11.8K$180K
Aug 5, 26Blackrock Portfolio Management Llc10%+ OwnerSELL116.2K$1.6M
Aug 5, 26Blackrock Portfolio Management Llc10%+ OwnerSELL11.9K$182K
Aug 4, 26Blackrock Portfolio Management Llc10%+ OwnerSELL77.7K$1.2M
Aug 4, 26Blackrock Portfolio Management Llc10%+ OwnerSELL456.3K$7.1M
Aug 4, 26Blackrock Portfolio Management Llc10%+ OwnerSELL78.1K$1.2M
Aug 4, 26Blackrock Portfolio Management Llc10%+ OwnerSELL468.5K$7.3M

SEC Form 4 filings as of Oct 21, 2026

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What does York Space Systems Inc. do?

York Space Systems, Inc. is a leading U.S.-based space and defense prime contractor specializing in the design, manufacture, and delivery of mission-critical satellite platforms and integrated space solutions. Founded in 2012 and headquartered in Denver, Colorado, the company provides end-to-end services encompassing spacecraft production, launch coordination, ground segment operations, and on-orbit mission control for national security, government, and commercial clients. York distinguishes itself through proprietary hardware and software that enable scalable, cost-effective satellites—produced at roughly half the cost of competitors—supporting complex requirements across the space ecosystem lifecycle. As the top provider to the U.S. Department of Defense's Proliferated Warfighter Space Architecture, with substantial revenue from Space Development Agency contracts and a $642 million backlog, York excels in rapid deployment, high-volume production, and innovations like Link-16 connectivity from space. Employing around 670 people under CEO Dirk Wallinger, it recently went public via an upsized IPO, trading as YSS, with plans to acquire a key supplier to bolster supply chain resilience. York's vertically integrated model drives efficiency in the evolving satellite industry, emphasizing agility, security, and global connectivity.

CEO
Mr. Dirk Wallinger
Employees
710
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