🕵️ YORK Space Systems Inc. ($YSS)
SEC insider & ownership activity, last 12 months · CIK 2086587 · every row links its SEC filing
Over the last 12 months insiders bought $25.7M with no open-market selling against it. Blackrock Portfolio Management LLC bought $25.6M in discretionary trades (Jan). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
3 buyers, $25.7M (3 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Blackrock Portfolio Management LLC | 1 | $25.6M | 0 | – | Jan 30, 2026 |
| Tami A. Erwin | 1 | $100K | 0 | – | Jan 30, 2026 |
| Letarte Tyler | 1 | $50K | 0 | – | Jan 30, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Aeroequity GP, LLC | 23.3% | 13G | May 15, 2026 | filing ↗ | |
| Michael Robert Greene | 23.3% | 13G | May 15, 2026 | filing ↗ | |
| David H. Rowe | 23.3% | 13G | May 15, 2026 | filing ↗ | |
| Blackrock Portfolio Management LLC | 14.0% | 13G | Apr 29, 2026 | filing ↗ | |
| Dirk Wallinger | 8.6% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Unregistered equity sale (3.02) | May 15, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | May 15, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 29, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 10, 2026 | filing ↗ |
| Earnings (2.02) | Mar 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 19, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Mar 6, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 28, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Jan 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 28, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Jan 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 28, 2026 | filing ↗ |