# EDGAR Filing Document

**Accession Number:** 0002086587
**File Stem:** 9999999995-26-000326
**Filing Date:** 2026-1
**Character Count:** 1313
**Document Hash:** 1c2d262c8091624d2134b841fe72dfbb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-26-000326.hdr.sgml**: 20260129

**ACCESSION NUMBER**: 9999999995-26-000326

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260128

**DATE AS OF CHANGE**: 20260129

**EFFECTIVENESS DATE**: 20260128

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Yellowstone Midco Holdings II, LLC
- **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:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-291581
- **FILM NUMBER:** 26574501

**BUSINESS ADDRESS:**
- **STREET 1:** 1449 7TH STREET, SUITE 425
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80204
- **BUSINESS PHONE:** 720-537-2655

**MAIL ADDRESS:**
- **STREET 1:** 1449 7TH STREET, SUITE 425
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80204

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

## Notice of Effectiveness

**Date:** January 28, 2026

**Time:** 16:00:00

**Form Type:** S-1

---

**CIK:** 0002086587

**Company Name:** Yellowstone Midco Holdings II, LLC

**File Number:** 333-291581