York Space Systems (YSS) director awarded 4,381 restricted stock units

Rhea-AI Filing Summary

Davidson Janine reported acquisition or exercise transactions in this Form 4 filing.

York Space Systems Inc. director Janine Davidson reported receiving a grant of 4,381 shares of Common Stock in the form of restricted stock units. These units were awarded at no cash cost per share and represent a compensation-related equity award rather than an open-market purchase.

The restricted stock units vest in full on January 30, 2027, meaning Davidson will gain full ownership of the underlying shares on that date if the vesting conditions are met. Following this grant, she holds 4,381 shares directly, reflecting her current reported equity position from this filing.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Davidson Janine

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	4,381	$0.00	--

Holdings After Transaction: Common Stock — 4,381 shares (Direct)

Footnotes (1)

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Key Figures

RSUs granted: 4,381 shares Grant price per share: $0.00 per share Shares held after transaction: 4,381 shares +1 more

4 metrics

RSUs granted 4,381 shares Grant of restricted stock units on April 10, 2026

Grant price per share $0.00 per share Equity award, not an open-market purchase

Shares held after transaction 4,381 shares Direct ownership following the RSU grant

Vesting date January 30, 2027 Restricted stock units vest in full on this date

Key Terms

restricted stock units, Form 4, grant, award, or other acquisition, Common Stock, +1 more

5 terms

restricted stock units financial

"Represents restricted stock units which vest in full on January 30, 2027."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 4 regulatory

"INSIDER FILING DATA (Form 4): {"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

grant, award, or other acquisition financial

""transaction_code_description": "Grant, award, or other acquisition""

Common Stock financial

""security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

direct ownership financial

""ownership_type": "direct""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Davidson Janine

(Last) (First) (Middle)

C/O YORK SPACE SYSTEMS INC.

6060 S WILLOW DRIVE

(Street)

GREENWOOD VILLAGE COLORADO 80111

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
York Space Systems Inc. [ YSS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/10/2026		A		4,381(1)	A	$0	4,381	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents restricted stock units which vest in full on January 30, 2027.

	/s/ Monica Palko, by Power of Attorney	04/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did York Space Systems (YSS) report for Janine Davidson?

York Space Systems reported that director Janine Davidson received 4,381 restricted stock units of Common Stock as an equity award. The grant was recorded at a price of $0.00 per share and reflects compensation rather than an open-market stock purchase.

How many York Space Systems (YSS) shares did Janine Davidson acquire in this Form 4?

Janine Davidson acquired 4,381 shares of York Space Systems in the form of restricted stock units. These units are reported as Common Stock, granted at no cash cost per share, and increase her direct reported holdings to 4,381 shares after the transaction.

When do Janine Davidson’s York Space Systems (YSS) restricted stock units vest?

The restricted stock units granted to Janine Davidson vest in full on January 30, 2027. She will gain full ownership of the underlying 4,381 shares on that date, assuming vesting conditions are satisfied, turning this grant into freely owned common stock.

Was Janine Davidson’s York Space Systems (YSS) transaction a market purchase or sale?

The transaction was not a market purchase or sale. It was a Form 4 grant classified as a “grant, award, or other acquisition,” with 4,381 restricted stock units awarded at $0.00 per share as part of her director compensation package.

How many York Space Systems (YSS) shares does Janine Davidson hold after this grant?

After the reported grant, Janine Davidson holds 4,381 shares of York Space Systems directly. All of these are tied to the restricted stock unit award disclosed, providing a snapshot of her current equity position based on this single Form 4 filing.