# EDGAR Filing Document

**Accession Number:** 0001949419
**File Stem:** 0001193125-26-140426
**Filing Date:** 2026-4
**Character Count:** 9677
**Document Hash:** 515fc479a3b6aad87156a7eac3e252e9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-140426.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0001193125-26-140426

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260323

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** RAMBEAU JON
- **CENTRAL INDEX KEY:** 0001949419

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42520
- **FILM NUMBER:** 26834998

**MAIL ADDRESS:**
- **STREET 1:** L3HARRIS TECHNOLOGIES, INC.
- **STREET 2:** 1395 TROUTMAN BLVD., NE
- **CITY:** PALM BAY
- **STATE:** FL
- **ZIP:** 32905
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Karman Holdings Inc.
- **CENTRAL INDEX KEY:** 0002040127
- **STANDARD INDUSTRIAL CLASSIFICATION:** AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC [3728]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 852660232
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 5351 ARGOSY AVE
- **CITY:** HUNTINGTON BEACH
- **STATE:** CA
- **ZIP:** 92649
- **BUSINESS PHONE:** (714) 898-9951

**MAIL ADDRESS:**
- **STREET 1:** 5351 ARGOSY AVE
- **CITY:** HUNTINGTON BEACH
- **STATE:** CA
- **ZIP:** 92649

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** TCFIII SPACECO HOLDINGS LLC
- **DATE OF NAME CHANGE:** 20241003

## Ex-24

&nbsp;&nbsp;&nbsp;&nbsp;

**POWER OF ATTORNEY**

KNOW ALL BY THESE PRESENTS, that Jon Rambeau (the "undersigned") hereby constitutes and appoints Mike Willis, Susan Bridgman and Katherine Vuyk acting as the undersigned's true and lawful attorney-in-fact to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) prepare, execute, submit and file for and on behalf of the undersigned a Form ID, including any amendments thereto, and any other related documents or action necessary or appropriate, including acting as an account administrator, to obtain or update from the Electronic Gathering and Retrieval System of the United States Securities and Exchange Commission ("SEC"), the codes, numbers and passphrases enabling the undersigned to make electronic filings with the SEC;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of Karman Holdings Inc. (the "Company") Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended, and rules thereunder;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) prepare, execute, submit and file for and on behalf of the undersigned, Forms 144, and any amendments thereto, in accordance with Rule 144 of the Securities Act of 1933, as amended, and the rules thereunder;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) prepare and execute for and on behalf of the undersigned reports of ownership on Schedule 13D or 13G under the Securities Exchange Act of 1934 and the rules thereunder, including any joint filing agreement thereunder, and do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such reports or schedules, and complete and execute any amendment or amendments thereto;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete or execute any such Form ID, Form 3, 4, 5 or 144, Schedule 13D or 13G, any amendments thereto and other related documents, and the timely file such forms, amendments thereto or other related documents with the SEC and any stock exchange or similar authority;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) take any other action of any type whatsoever in connection with the foregoing which, in the opinion of any such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by any such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form an shall contain such terms and conditions as such attorney-in-fact may approve in any such attorney-in-fact's discretion; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) act as an account administrator for the undersigned's EDGAR account, including: (i) appoint, remove and replace account administrators, account users, technical administrators and delegated entities; (ii) maintain the security of the undersigned's EDGAR account, including modification of access codes; (iii) maintain, modify and certify the accuracy of information on the undersigned's EDGAR account dashboard; (iv) act as the EDGAR point of contact with respect to the undersigned's EDGAR account; and (v) any other actions contemplated by Rule 10 of Regulation S-T with respect to account administrators.

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that any such attorney-in-fact or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted.

------

The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934, as amended.

This Power of Attorney shall remain in full force and effect until the earliest to occur of (a) the undersigned is no longer required to file Forms 3, 4, 5 or 144 or Schedules 13D or 13G with respect to the undersigned's holdings of and transactions in securities issued by the Company or (b) revocation by the undersigned in a signed writing.

[*Signature Page to Follow*]

------

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of April 2, 2026.

Name:<br>

/s/ Jon Rambeau

---

| | | |
|:---|:---|:---|
| By:  |  |  |
|  | Name:  | Jon Rambeau |
|  | Title:  | Chief Executive Officer |

---

[*Signature Page to Power of Attorney*]

------

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>RAMBEAU JON<br><sub>(Last) (First) (Middle)</sub><br>C/O  KARMAN HOLDINGS INC.<br>5351 ARGOSY AVENUE<br><sub>(Street)</sub><br>HUNTINGTON BEACH, CA 92649<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Karman Holdings Inc. [ KRMN ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-23 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_CHIEF EXECUTIVE OFFICER_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
See attached Exhibit 24 - Power of Attorney.

**Signature:** /s/ Susan Bridgman, Attorney-in-fact for Jon Rambeau  
**Date:** 2026-04-02

### Remarks:

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.**