York Space Systems Inc. (YSS)
$9.06-$0.13 (-1.41%) Today
York Space Systems Inc is a U.S.-based space and defense company that provides mission-related solutions for national security, government, and commercial customers. The company develops its own hardware and software, offering capabilities intended to support customer requirements across various elements of the space mission lifecycle. It offers mission solutions across several complementary product categories: Components, Subsystems, Spacecraft Platforms, Ground Operation, Global Downlink, and Software-Enabled Services. The company derives the majority of revenue from long-term firm-fixed-price (FFP) production contracts for the design of small satellites, launch services, and ground services with both U.S. federal government-controlled agencies and domestic commercial customers.
https://www.yorkspacesystems.comSEC filings for YSS on EDGAR
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 12 | 1,590,144 | $24.10M |
| Grant or award | 3 | 3,007,289 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
21 Form 4 filings on record, the earliest from Feb 3, 2026, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 78,082 | $15.02 | $1.17M | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 468,476 | $15.58 | $7.30M | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 116,162 | $13.49 | $1.57M | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 11,884 | $15.28 | $182K | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 77,743 | $15.02 | $1.17M | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 456,310 | $15.58 | $7.11M | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 116,162 | $13.49 | $1.57M | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 11,784 | $15.28 | $180K | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 35,574 | $15.14 | $539K | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 13,754 | $15.03 | $207K | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 63,390 | $15.31 | $971K | |
| BlackRock Portfolio Management LLC - 10% Owner | Open-market sale | Common Stock | 140,823 | $15.18 | $2.14M | |
| AEROEQUITY GP, LLC - 10% Owner | Grant or award | Common Stock, par value $0.0001 per share | 2,289,366 | $34.00 | $77.84M | |
| AEROEQUITY GP, LLC - 10% Owner | Grant or award | Common Stock, par value $0.0001 per share | 430,134 | $34.00 | $14.62M | |
| AEROEQUITY GP, LLC - 10% Owner | Grant or award | Common Stock, par value $0.0001 per share | 287,789 | $34.00 | $9.78M | |
| Janine Davidson | Grant or award | Common Stock | 4,381 | $0.00 | - | |
 Dirk Wallinger - Officer | Grant or award | Common Stock | 211,176 | $0.00 | - | |
| Brian D. Frantz - Officer | Grant or award | Common Stock | 10,294 | $0.00 | - | |
| Tami A. Erwin | Grant or award | Common Stock | 5,294 | $0.00 | - | |
| Tami A. Erwin | Open-market purchase | Common Stock | 2,941 | $34.00 | $100K | |
 Kevin Messerle - Officer | Grant or award | Common Stock | 80,882 | $0.00 | - | |
| Kirk Michael Konert | Grant or award | Common Stock | 5,294 | $0.00 | - | |
| James McConville | Grant or award | Common Stock | 5,294 | $0.00 | - | |
| Dirk Wallinger - Officer | Grant or award | Common Stock | 569,920 | $0.00 | - | |
 Tyler Letarte | Grant or award | Common Stock | 5,294 | $0.00 | - | |
| Tyler Letarte | Open-market purchase | Common Stock | 1,470 | $34.00 | $50K | |
 Andrew Boyd | Grant or award | Common Stock | 5,294 | $0.00 | - | |
| Louis R. Brothers Jr. | Grant or award | Common Stock | 5,294 | $0.00 | - | |
| Monica J. Palko - Officer | Grant or award | Common Stock | 54,412 | $0.00 | - | |
 Devjyoti Rudra - Officer | Grant or award | Common Stock | 23,529 | $0.00 | - | |
| BlackRock Portfolio Management LLC | Open-market purchase | Common Stock | 752,500 | $34.00 | $25.59M |
York Space Systems Inc. (YSS) had 7 insider filings in the last 90 days, with the most recent on 2026-08-10. The full record for YSS runs to 21 Form 4 filings, the earliest from 2026-02-03. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of YSS were filed in the last 90 days. 3 purchases are on record for this company.
12 insider sales of YSS were filed in the last 90 days, totaling $24.10M.
This page tracks YSS Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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