Tami A. Erwin - 30 Jan 2026 Form 4 Insider Report for Yellowstone Midco Holdings II, LLC (YSS)

Role
Director
Signature
/s/ Monica Palko, by Power of Attorney
Issuer symbol
YSS
Transactions as of
30 Jan 2026
Net transactions value
+$99,994
Form type
4
Filing time
03 Feb 2026, 21:04:13 UTC
Previous filing
29 Jan 2026
Next filing
05 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Erwin Tami A. Director C/O YORK SPACE SYSTEMS INC., 6060 S WILLOW DRIVE, GREENWOOD VILLAGE /s/ Monica Palko, by Power of Attorney 03 Feb 2026 0001760658

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction YSS Common Stock Award $0 +5,294 +7.4% $0.000000 77,043 30 Jan 2026 Direct F1
transaction YSS Common Stock Purchase $99,994 +2,941 +3.8% $34.00 79,984 30 Jan 2026 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents restricted stock units which vest on the first anniversary of the grant date.
F2 Represents the price to the public in the issuer's initial public offering.