York Space Systems Inc. (YSS) Insider Trading
Directors, officers and holders of more than 10% of YSS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 29 most recent of 29 transactions on file: 3 with code P, 10 with code S and 16 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 7, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 200,170 | $10.99 | $2,199,868 |
| Aug 6, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 201,504 | $11.60 | $2,337,446 |
| Aug 5, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 11,884 | $15.28 | $181,588 |
| Aug 5, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 116,162 | $13.49 | $1,567,025 |
| Aug 4, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 468,476 | $15.58 | $7,298,856 |
| Aug 4, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 78,082 | $15.02 | $1,172,792 |
| Aug 3, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 13,754 | $15.03 | $206,723 |
| Jul 31, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 35,574 | $15.14 | $538,590 |
| Jul 30, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 140,823 | $15.18 | $2,137,693 |
| Jul 29, 2026 | BlackRock Portfolio Management LLC | 10% Owner | S Sale | 63,390 | $15.31 | $970,501 |
| Jul 8, 2026 | AEROEQUITY GP, LLC | 10% Owner | A Award | 2,289,366 | $34.00 | $77,838,444 |
| Jun 4, 2026 | AEROEQUITY GP, LLC | 10% Owner | A Award | 430,134 | $34.00 | $14,624,556 |
| Jun 4, 2026 | AEROEQUITY GP, LLC | 10% Owner | A Award | 287,789 | $34.00 | $9,784,826 |
| Apr 10, 2026 | Davidson Janine | Director | A Award | 4,381 | Not measured | Not measured |
| Jan 30, 2026 | Frantz Brian D | Chief Accounting Officer | A Award | 10,294 | Not measured | Not measured |
| Jan 30, 2026 | Wallinger Dirk | Chief Executive Officer | A Award | 211,176 | Not measured | Not measured |
| Jan 30, 2026 | Erwin Tami A. | Director | A Award | 5,294 | Not measured | Not measured |
| Jan 30, 2026 | Erwin Tami A. | Director | P Purchase | 2,941 | $34.00 | $99,994 |
| Jan 30, 2026 | Messerle Kevin | Chief Financial Officer | A Award | 80,882 | Not measured | Not measured |
| Jan 30, 2026 | Konert Kirk Michael | Director | A Award | 5,294 | Not measured | Not measured |
| Jan 30, 2026 | McConville James | Director | A Award | 5,294 | Not measured | Not measured |
| Jan 30, 2026 | Wallinger Dirk | Chief Executive Officer | A Award | 569,920 | Not measured | Not measured |
| Jan 30, 2026 | Letarte Tyler | Director | A Award | 5,294 | Not measured | Not measured |
| Jan 30, 2026 | Letarte Tyler | Director | P Purchase | 1,470 | $34.00 | $49,980 |
| Jan 30, 2026 | Boyd Andrew | Director | A Award | 5,294 | Not measured | Not measured |
| Jan 30, 2026 | Brothers Louis R Jr | Director | A Award | 5,294 | Not measured | Not measured |
| Jan 30, 2026 | Palko Monica J. | See Remarks | A Award | 54,412 | Not measured | Not measured |
| Jan 30, 2026 | Rudra Devjyoti | Chief Supply Chain Officer | A Award | 23,529 | Not measured | Not measured |
| Jan 30, 2026 | BlackRock Portfolio Management LLC | 10% Owner | P Purchase | 752,500 | $34.00 | $25,585,000 |
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.