York Space Systems
YSS · NYSE
$5.73+$0.05 (+0.88%)TodayMarket closed ·
Prev close $5.68
Who owns YSS
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 57.6% of YSS’s shares.
- AE Industrial Partners, LP26.8%
- Wallinger (Dirk)8.5%
- BlackRock Financial Management, Inc.7.7%
- BlackRock Institutional Trust Company, N.A.5.6%
- Next 6 largest institutions9.0%
- All other shareholders42.4%
| Holder | Shares | % of shares |
|---|---|---|
| AE Industrial Partners, LP | 35.20M | 26.79% |
| Wallinger (Dirk) | 11.17M | 8.50% |
| BlackRock Financial Management, Inc. | 10.18M | 7.75% |
| BlackRock Institutional Trust Company, N.A. | 7.33M | 5.58% |
| PIMCO (US) | 2.73M | 2.08% |
| Hood River Capital Management LLC | 1.96M | 1.49% |
| Tema ETFS LLC | 1.90M | 1.45% |
| Tidal Investments LLC | 1.84M | 1.40% |
| Westwood Management Corp. (Texas) | 1.74M | 1.32% |
| Voya Investment Management LLC | 1.62M | 1.23% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Tema Space Innovators ETF | 1.56M | 1.18% |
| Global X Defense Tech ETF | 1.11M | 0.85% |
| State Street SPDR S&P Aerospace & Defense ETF | 1.04M | 0.79% |
| Hood River Small-Cap Growth Fund | 1.02M | 0.78% |
| Vanguard Total Stock Market Index Fund | 602.56K | 0.46% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $28.64M (14 trades) of YSS on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| BlackRock Portfolio Management LLC | Sale | 200.17K | $2.20M |
| BlackRock Portfolio Management LLC | Sale | 201.50K | $2.34M |
| BlackRock Portfolio Management LLC | Sale | 11.88K | $181.59K |
| BlackRock Portfolio Management LLC | Sale | 116.16K | $1.57M |
| BlackRock Portfolio Management LLC | Sale | 11.78K | $180.06K |
| BlackRock Portfolio Management LLC | Sale | 116.16K | $1.57M |
| BlackRock Portfolio Management LLC | Sale | 468.48K | $7.30M |
| BlackRock Portfolio Management LLC | Sale | 78.08K | $1.17M |
| BlackRock Portfolio Management LLC | Sale | 456.31K | $7.11M |
| BlackRock Portfolio Management LLC | Sale | 77.74K | $1.17M |
Short interest
Settled Sep 30, 2026
- Shares short
- 11.97M
- Days to cover
- 2.61
- % of shares outstanding
- 9.11%
- Average daily volume
- 4.58M
- Change since last report
- +62.0%
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