Dirk Wallinger - 29 Jan 2026 Form 3 Insider Report for Yellowstone Midco Holdings II, LLC (YSS)

Role
Chief Executive Officer, Director
Signature
/s/ Monica Palko, by Power of Attorney
Issuer symbol
YSS
Transactions as of
29 Jan 2026
Net transactions value
$0
Form type
3
Filing time
29 Jan 2026, 20:48:38 UTC
Next filing
03 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Wallinger Dirk Chief Executive Officer, Director C/O YORK SPACE SYSTEMS INC., 6060 S WILLOW DRIVE, GREENWOOD VILLAGE /s/ Monica Palko, by Power of Attorney 29 Jan 2026 0002100113

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding YSS Common Stock 9,572,046 29 Jan 2026 Direct F1
holding YSS Common Stock 227,441 29 Jan 2026 By Ghostrider 117 LLC
holding YSS Common Stock 1,369,106 29 Jan 2026 By DHW Irrevocable Trust
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 358,744 shares of restricted stock which vest over two years.

Remarks:

Exhibit 24.1 - Power of Attorney