YSS director granted 5,294 restricted stock units

Yellowstone Midco Holdings II, LLC director James McConville received an equity grant in the form of restricted stock units.

Accepted by SEC EDGAR 02/03/2026 - 09:00 PM EST

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Form Type

Rhea-AI Filing Summary

Yellowstone Midco Holdings II, LLC director James McConville received an equity grant in the form of restricted stock units. On 01/30/2026, he was awarded 5,294 shares of common stock at a price of $0 per share. These units vest on the first anniversary of the grant date. Following this award, he beneficially owns 5,294 shares directly.

Insider Trade Summary

Grant/Award: 5,294 shares

Grant/Award 1 txn

Insider McConville James

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	5,294	$0.00	$0.00

Holdings After Transaction: Common Stock — 5,294 shares (Direct)

Holdings Before and After: Common Stock, 0 to 5,294 shares (Direct)

Footnotes (1)

F1. Represents restricted stock units which vest on the first anniversary of the grant date.

FAQ

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What insider transaction did YSS director James McConville report?

James McConville reported receiving 5,294 shares of Yellowstone Midco Holdings II, LLC common stock as an equity grant. The award was filed as a Form 4 insider transaction dated January 30, 2026, and is recorded as an acquisition at a price of $0 per share.

What type of securities did James McConville acquire in YSS?

James McConville acquired restricted stock units representing 5,294 shares of Yellowstone Midco Holdings II, LLC common stock. These units convert into common shares, giving him direct beneficial ownership once vested, and were granted at no cash cost to him per share.

When do James McConville’s YSS restricted stock units vest?

The restricted stock units granted to James McConville vest on the first anniversary of the grant date. Since the grant date is January 30, 2026, the units are scheduled to vest one year later, assuming any applicable service or other vesting conditions are satisfied.

How many YSS shares does James McConville own after this Form 4 transaction?

After the reported transaction, James McConville beneficially owns 5,294 shares of Yellowstone Midco Holdings II, LLC common stock. The Form 4 indicates all of these shares relate to the restricted stock unit grant and are held under direct ownership following the award.

Was cash paid for the YSS shares reported by James McConville?

No cash was paid for these shares. The Form 4 lists the 5,294 shares of Yellowstone Midco Holdings II, LLC common stock as acquired at a price of $0 per share, reflecting a restricted stock unit compensation grant rather than an open-market purchase.

Is James McConville a director or officer of Yellowstone Midco Holdings II, LLC (YSS)?

James McConville is identified as a director of Yellowstone Midco Holdings II, LLC. The Form 4 checkboxes show his status as a director and do not indicate any officer role or 10% beneficial ownership position in the company’s equity.

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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^*

McConville James

(Last)

(First)

(Middle)

C/O YORK SPACE SYSTEMS INC.

6060 S WILLOW DRIVE

(Street)

GREENWOOD VILLAGE

80111

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Yellowstone Midco Holdings II, LLC [ YSS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/30/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	01/30/2026		A		5,294⁽¹⁾	A	$0	5,294	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents restricted stock units which vest on the first anniversary of the grant date.

	/s/ Monica Palko, by Power of Attorney	02/03/2026
	** 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.

Source: View Original Filing on SEC EDGAR