# EDGAR Filing Document

**Accession Number:** 0002086587
**File Stem:** 0001628280-26-040636
**Filing Date:** 2026-6
**Character Count:** 9468
**Document Hash:** 99fa1d70169968dfaecbdb47c7a7d81b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-040636.hdr.sgml**: 20260604

**ACCESSION NUMBER**: 0001628280-26-040636

**CONFORMED SUBMISSION TYPE**: 8-K/A

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260515

**ITEM INFORMATION**: Unregistered Sales of Equity Securities

**FILED AS OF DATE**: 20260604

**DATE AS OF CHANGE**: 20260604

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** York Space Systems Inc.
- **CENTRAL INDEX KEY:** 0002086587
- **STANDARD INDUSTRIAL CLASSIFICATION:** GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43088
- **FILM NUMBER:** 261063334

**BUSINESS ADDRESS:**
- **STREET 1:** 6060 S WILLOW DR.
- **CITY:** GREENWOOD VILLAGE
- **STATE:** CO
- **ZIP:** 80111
- **BUSINESS PHONE:** 720-537-2655

**MAIL ADDRESS:**
- **STREET 1:** 6060 S WILLOW DR.
- **CITY:** GREENWOOD VILLAGE
- **STATE:** CO
- **ZIP:** 80111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Yellowstone Midco Holdings II, LLC
- **DATE OF NAME CHANGE:** 20250917

?xml version='1.0' encoding='ASCII'? yss-20260515

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K/A**

**(Amendment No. 1)**

**CURRENT REPORT**

**Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported): May 15, 2026**

**YORK SPACE SYSTEMS INC.**

**(Exact name of registrant as specified in its charter)**

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-43088** | **39-4190941** |
| **(State or other jurisdiction**<br>**of incorporation)** | **(Commission**<br>**File Number)** | **(IRS Employer Identification No.)** |

---

**6060 S Willow Drive 80111**

**Greenwood Village, CO**

---

| | |
|:---|:---|
| **(Address of principal executive offices)** | **(Zip Code)** |

---

**Registrant's telephone number, including area code: (720) 537-2655**

---

| |
|:---|
| **Not Applicable** |
| **(Former name or former address, if changed since last report.)** |

---

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
| Common Stock, par value $0.0001 per share | YSS  | &nbsp;&nbsp;&nbsp;&nbsp;New York Stock Exchange |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

☐

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**Explanatory Note**

This Amendment No. 1 to the Current Report on Form 8-K (this "Amendment") is being filed by York Space Systems Inc., a Delaware corporation (the "Company") for the purpose of amending and supplementing Item 3.02 of that certain Current Report on Form 8-K originally filed by the Company with the U.S. Securities and Exchange Commission on May 19, 2026 (the "Original Form 8-K"). This Amendment is being filed to update the number of shares of the Company's common stock, par value $0.0001 per share (the "Company Shares") that were issued as merger consideration in connection with the Company's acquisition of Solestial, Inc. (the "Acquisition"). No other changes have been made to the Original Form 8-K.

**Item 3.02 Unregistered Sales of Equity Securities.** 

The information set forth in Item 3.02 of the Original Form 8-K is hereby supplemented as follows:

On June 4, 2026, the Company closed the Acquisition with the issuance of 1,703,577 Company Shares using a negotiated value of $34.00 per share and paid with a mix of cash and stock for a purchase price of approximately $67 million paid to the seller at closing. The Company Shares were issued pursuant to one or more exemptions from registration under the Securities Act of 1933, as amended, including those under Section 4(a)(2) thereof or Regulation D promulgated thereunder.

**Forward-Looking Statements**

This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, which include all statements that do not relate solely to historical or current facts, such as statements regarding the Company's expectations, intentions or strategies regarding the future, including strategies or plans as they relate to the recently completed transaction. In some cases, you can identify forward-looking statements by the following words: "may," "will," "could," "would," "should," "expect," "intend," "plan," "anticipate," "believe," "estimate," "predict," "project," "aim," "potential," "continue," "ongoing," "goal," "can," "seek," "target" or the negative of these terms or other similar expressions, although not all forward-looking statements contain these words. These forward-looking statements are based on management's beliefs, as well as assumptions made by, and information currently available to, the Company. Because such statements are based on expectations and are not statements of fact, actual results may differ materially from those projected and are subject to a number of known and unknown risks and uncertainties, including: (i) the effect of the announcement or pendency of the transaction on the Company's stock price, business relationships, operating results and business generally; (vi) risks that the transaction may disrupt the Company's current business plans and operations; and (vii) other risks described in the Company's filings with the Securities and Exchange Commission (the "SEC"), including its Annual Report on Form 10-K for the fiscal year ended December 31, 2025, as may be updated or supplemented by any subsequent Quarterly Reports on Form 10-Q or other filings with the SEC. All such factors are difficult to predict and are beyond the Company's control. While the list of risks and uncertainties presented here is considered representative, no such list or discussion should be considered a complete statement of all potential risks and uncertainties. Unlisted factors may present significant additional obstacles to the realization of forward-looking statements. Consequences of material differences in results as compared with those anticipated in the forward-looking statements could include, among other things, business disruption, operational problems, financial loss, and legal liability to third parties and similar risks, any of which could have a material adverse effect on the completion of the proposed transaction and/or the Company's consolidated financial condition or results of operations. In light of the significant uncertainties in these forward-looking statements, the Company cannot assure you that the forward-looking statements in this Current Report on Form 8-K will prove to be accurate, and you should not regard these statements as a representation or warranty by the Company, its directors, officers or employees or any other person that the Company will achieve its objectives and plans in any specified time frame, or at all. The forward-looking statements speak only as of the date they are made. The Company undertakes no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law. Readers are cautioned not to place undue reliance on these forward-looking statements.

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**YORK SPACE SYSTEMS INC.**

Date: June 4, 2026

By: <u>/s/ Monica Palko</u> 

Name: Monica Palko

Title: Chief Legal & Administrative Officer