# EDGAR Filing Document

**Accession Number:** 0001021162
**File Stem:** 0001140361-25-027176
**Filing Date:** 2025-7
**Character Count:** 12329
**Document Hash:** e21fcce85fcf841ef12d22d89b2324be
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-027176.hdr.sgml**: 20250725

**ACCESSION NUMBER**: 0001140361-25-027176

**CONFORMED SUBMISSION TYPE**: S-8 POS

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250725

**DATE AS OF CHANGE**: 20250724

**EFFECTIVENESS DATE**: 20250725

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TRIUMPH GROUP INC
- **CENTRAL INDEX KEY:** 0001021162
- **STANDARD INDUSTRIAL CLASSIFICATION:** AIRCRAFT & PARTS [3720]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 510347963
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** S-8 POS
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-36957
- **FILM NUMBER:** 251148278

**BUSINESS ADDRESS:**
- **STREET 1:** 555 E LANCASTER AVENUE
- **STREET 2:** SUITE 400
- **CITY:** RADNOR
- **STATE:** PA
- **ZIP:** 19087
- **BUSINESS PHONE:** (610) 251-1000

**MAIL ADDRESS:**
- **STREET 1:** 555 E LANCASTER AVENUE
- **STREET 2:** SUITE 400
- **CITY:** RADNOR
- **STATE:** PA
- **ZIP:** 19087

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** TRIUMPH GROUP INC /
- **DATE OF NAME CHANGE:** 19960819

------

#### As filed with the Securities and Exchange Commission on July 24, 2025

#### Registration No. 333-36957<br> Registration No. 333-81665<br> Registration No. 333-50056<br> Registration No. 333-125888<br> Registration No. 333-134861<br> Registration No. 333-192537<br>

#### Registration No. 333-192538

#### Registration No. 333-211676<br>

#### Registration No. 333-219486

#### Registration No. 333-226640

#### Registration No. 333-249980

#### Registration No. 333-273426

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### <br>

------

#### POST-EFFECTIVE AMENDMENT NO. 1 TO:
**FORM S-8 REGISTRATION STATEMENT NO. 333-36957<br> FORM S-8 REGISTRATION STATEMENT NO. 333-81665<br> FORM S-8 REGISTRATION STATEMENT NO. 333-50056<br> FORM S-8 REGISTRATION STATEMENT NO. 333-125888<br> FORM S-8 REGISTRATION STATEMENT NO. 333-134861<br> FORM S-8 REGISTRATION STATEMENT NO. 333-192537**

<br> #### FORM S-8 REGISTRATION STATEMENT NO. 333-192538

#### FORM S-8 REGISTRATION STATEMENT NO. 333-211676<br>

#### FORM S-8 REGISTRATION STATEMENT NO. 333-219486

#### FORM S-8 REGISTRATION STATEMENT NO. 333-226640

#### FORM S-8 REGISTRATION STATEMENT NO. 333-249980

#### FORM S-8 REGISTRATION STATEMENT NO. 333-273426

#### UNDER

#### THE SECURITIES ACT OF 1933

#### <br>

------

## Triumph Group, Inc.

#### (Exact name of registrant as specified in its charter)

------

---

| | |
|:---|:---|
| **Delaware** | **51-0347963** |
| **(State or other jurisdiction of incorporation or organization)** | **(I.R.S. Employer Identification Number)** |

---

#### 555 E Lancaster Avenue, Suite 400

#### Radnor, PA 19087
(610) 251-1000

#### (Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

#### <br>

------

 **Triumph Group, Inc. 1996 Stock Option Plan<br> Triumph Group, Inc. Directors' Stock Option Plan<br> 2004 Stock Incentive Plan<br> Triumph Group Inc. Amended and Restated Directors' Stock Option Plan<br> Triumph Group, Inc. 2013 Employee Stock Purchase Plan**

<br> #### Triumph Group, Inc. 2013 Equity and Cash Incentive Plan

#### Time-Based Restricted Stock Award Agreement by and between Daniel J. Crowley and Triumph Group, Inc., dated as of April 1, 2016<br>

#### Triumph Group, Inc. 2016 Directors' Equity Compensation Plan

#### Triumph Group, Inc. Amended and Restated 2018 Equity Incentive Plan
(Full title of the plans)

#### Jennifer H. Allen

#### Chief Administrative Officer, Senior Vice President, General Counsel and Secretary

#### 555 E Lancaster Avenue, Suite 400

#### Radnor, PA 19087
(610) 251-1000

#### (Name, address, including zip code, and telephone number, including area code, of agent for service)

------

#### Marie L. Gibson, Esq.

#### Skadden, Arps, Slate, Meagher & Flom LLP

#### One Manhattan West

#### New York, New York 10001

#### Telephone: (212) 735-3000

#### Facsimile: (212) 735-2000

#### New York, New York 10001
(212) 735-3000

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

---

| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☒ | Accelerated filer | ☐ |
| Non-accelerated filer | ☐ | Smaller reporting company | ☐ |
|  |  | Emerging growth company | ☐ |

---

<br> If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

------

#### EXPLANATORY NOTE

#### DEREGISTRATION OF SECURITIES

This Post-Effective Amendment (the "Post-Effective Amendment") is being filed by Triumph Group, Inc. (the "Registrant") to deregister all securities remaining unsold under the following Registration Statements on Form S-8 (the "Registration Statements") filed by the Registrant with the Securities and Exchange Commission (the "Commission"):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-36957), which was filed by the Registrant with the Commission on October 1, 1997, pertaining to the registration of the securities
 described in such statement under the Registrant's 1996 Stock Option Plan.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-81665), which was filed by the Registrant with the Commission on June 28, 1999, pertaining to the registration of the securities
 described in such statement under the Registrant's Directors' Stock Option Plan.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-50056), which was filed by the Registrant with the Commission on November 16, 2000, pertaining to the registration of the securities
 described in such statement under the Registrant's 1996 Stock Option Plan.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-125888), which was filed by the Registrant with the Commission on June 17, 2005, pertaining to the registration of the securities
 described in such statement under the Registrant's 2004 Stock Incentive Plan.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-134861), which was filed by the Registrant with the Commission on June 8, 2006, pertaining to the registration of the securities
 described in such statement under the Registrant's Amended and Restated Directors' Stock Option Plan.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-192537), which was filed by the Registrant with the Commission on November 25, 2013, pertaining to the registration of the securities
 described in such statement under the Registrant's 2013 Employee Stock Purchase Plan.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-192538), which was filed by the Registrant with the Commission on November 26, 2013, pertaining to the registration of the securities described in such statement under the
 Registrant's 2013 Equity and Cash Incentive Plan.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-211676), which was filed by the Registrant with the Commission on May 27, 2016, pertaining to the registration of the securities described in such statement under the Time-Based
 Restricted Stock Award Agreement by and between Daniel J. Crowley and Triumph Group, Inc., dated as of April 1, 2016.<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-219486), which was filed by the Registrant with the Commission on July 26, 2017, pertaining to the registration of the securities described in such statement under the Registrant's
 2016 Directors' Equity Compensation Plan.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-226640), which was filed by the Registrant with the Commission on August 7, 2018, pertaining to the registration of the securities described in such statement under the
 Registrant's 2018 Equity Incentive Plan.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-249980), filed by the Registrant with the Commission on November 9, 2020, pertaining to the registration of the securities described in such statement under the Registrant's
 Amended and Restated 2018 Equity Incentive Plan.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Registration Statement on Form S-8 (Registration No. 333-273426), filed by the Registrant with the Commission on July 25, 2023, pertaining to the registration of additional securities under the Registrant's 2016 Director's Equity
 Compensation Plan and the Registrant's Amended and Restated 2018 Equity Incentive Plan.

On July 24, 2025 (the "Closing Date"), pursuant to that certain Agreement and Plan of Merger dated February 2, 2025 (the "Merger Agreement") among the Registrant, Titan BW Acquisition Holdco Inc., a Delaware corporation ("Parent"), and Titan BW Acquisition Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Registrant, with the Registrant surviving as a wholly owned subsidiary of Parent (the "Merger"). Parent and Merger Sub are affiliates of investment funds managed by Warburg Pincus LLC and Berkshire Partners LLC.

As a result of the Merger, the Registrant has terminated any and all offerings and sales of securities pursuant to the Registration Statements. In accordance with an undertaking made by the Registrant in the Registration Statements to remove from registration, by means of a post-effective amendment, any of the securities of the Registrant registered under the Registration Statements which remain unsold at the termination of the offering, the Registrant hereby terminates the effectiveness of the Registration Statements and removes from registration all of the securities that remain unsold under the Registration Statements as of the date hereof, if any.

The Registrant is filing this Post-Effective Amendment to withdraw and remove from registration all securities registered pursuant to the Registration Statements that remain unsold as of the date hereof. The Registration Statements are hereby amended, as appropriate, to reflect the deregistration of such securities. After giving effect to this Post- Effective Amendment, there will be no remaining securities registered by the Registrant pursuant to the Registration Statements.

The foregoing description of the Merger, the Merger Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the Merger Agreement, which is attached as Exhibit 2.1 to the Registrant's Current Report on Form 8-K filed with the SEC on July 24, 2025.

------

#### SIGNATURES
Pursuant to the requirements of the Securities Act, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Post-Effective Amendment to the Registration Statements described above to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Radnor, Commonwealth of Pennsylvania on July 24, 2025.

---

| | |
|:---|:---|
| <u>TRIUMPH GROUP, INC.</u> | <u>TRIUMPH GROUP, INC.</u> |
| By: | /s/ James F. McCabe, Jr. |
|  | Name: James F. McCabe, Jr. |
|  | Title: Senior Vice President, Chief Financial Officer |

---

Pursuant to Rule 478 of the Securities Act of 1933, as amended, no other person is required to sign this Post-Effective Amendment.

------