The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 7, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 200K | $10.99 | $2.2M |
| Aug 6, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 202K | $11.60 | $2.3M |
| Aug 5, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 116K | $13.49 | $1.6M |
| Aug 5, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 12K | $15.28 | $182K |
| Aug 4, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 78K | $15.02 | $1.2M |
| Aug 4, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 468K | $15.58 | $7.3M |
| Aug 3, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 14K | $15.03 | $207K |
| Jul 31, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 36K | $15.14 | $539K |
| Jul 30, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 141K | $15.18 | $2.1M |
| Jul 29, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Sell(S) | 63K | $15.31 | $971K |
| Jul 8, 2026 | Aeroequity GP, LLC | 10% Owner | Grant(A) | 2.3M | $34.00 | $77.8M |
| Jun 4, 2026 | Aeroequity GP, LLC | 10% Owner | Grant(A) | 430K | $34.00 | $14.6M |
| Apr 10, 2026 | Davidson Janine | Director | Grant(A) | 4K | — | $0 |
| Jan 30, 2026 | BlackRock Portfolio Management LLC | 10% Owner | Buy(P) | 753K | $34.00 | $25.6M |
| Jan 30, 2026 | Rudra Devjyoti | Chief Supply Chain Officer | Grant(A) | 24K | — | $0 |
| Jan 30, 2026 | Palko Monica J. | See Remarks | Grant(A) | 54K | — | $0 |
| Jan 30, 2026 | Brothers Louis R Jr | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Boyd Andrew | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Letarte Tyler | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Letarte Tyler | Director | Buy(P) | 1K | $34.00 | $50K |
| Jan 30, 2026 | McConville James | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Konert Kirk Michael | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Messerle Kevin | Chief Financial Officer | Grant(A) | 81K | — | $0 |
| Jan 30, 2026 | Erwin Tami A. | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Erwin Tami A. | Director | Buy(P) | 3K | $34.00 | $100K |
| Jan 30, 2026 | Frantz Brian D | Chief Accounting Officer | Grant(A) | 10K | — | $0 |
| Jan 30, 2026 | Wallinger Dirk | Chief Executive Officer, Director | Grant(A) | 211K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: York Space Systems Inc., SEC CIK 0002086587. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under YSS and shows every filing by that issuer.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-05. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for YSS