# EDGAR Filing Document

**Accession Number:** 0001053706
**File Stem:** 0001104659-26-039161
**Filing Date:** 2026-4
**Character Count:** 9312
**Document Hash:** f09d0cebb6c32a1b5b167919f2c6651f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-039161.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0001104659-26-039161

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20260327

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CRA INTERNATIONAL, INC.
- **CENTRAL INDEX KEY:** 0001053706
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-LEGAL SERVICES [8111]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 042372210
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0102

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-24049
- **FILM NUMBER:** 26833575

**BUSINESS ADDRESS:**
- **STREET 1:** 200 CLARENDON STREET
- **STREET 2:** T-9
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 6174253000

**MAIL ADDRESS:**
- **STREET 1:** 200 CLARENDON STREET
- **STREET 2:** T-9
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CHARLES RIVER ASSOCIATES INC
- **DATE OF NAME CHANGE:** 19980126

?xml version='1.0' encoding='ASCII'?

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**WASHINGTON, DC 20549** 

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**FORM 8-K**

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**CURRENT REPORT**

**PURSUANT TO SECTION 13 OR 15(d) OF THE**

**SECURITIES EXCHANGE ACT OF 1934**

Date of report (Date of earliest event reported): March 27, 2026

**CRA INTERNATIONAL, INC.**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Massachusetts** | **000-24049** | **04-2372210** |
| (State or other jurisdiction | (Commission | (IRS employer |
| of incorporation) | file number) | identification no.) |

---

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| | |
|:---|:---|
| **200 Clarendon Street Boston, Massachusetts** | **02116** |
| (Address of principal executive offices) | (Zip code) |

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Registrant's telephone number, including area code: **(617) 425-3000**

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

◻ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

◻ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

◻ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

◻ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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| | | |
|:---|:---|:---|
| Securities registered pursuant to Section 12(b) of the Act: | Securities registered pursuant to Section 12(b) of the Act: | Securities registered pursuant to Section 12(b) of the Act: |
| **Title of Each Class** | **Trading Symbol** | **Name of Each Exchange on Which Registered** |
| Common Stock, no par value | CRAI | Nasdaq Global Select Market |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ◻

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 13(a) of the Exchange Act. ◻

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| | |
|:---|:---|
| **Item 5.02** | **Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.** |

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On March 27, 2026, William Concannon informed the board of directors (the "Board") of CRA International, Inc. (the "Company") that he will be retiring as a director of the Board effective as of the adjournment of the 2026 Annual Meeting of Shareholders (the "Annual Meeting"), which is scheduled for July 16, 2026. Mr. Concannon's notice of retirement was not due to any disagreement with the Company relating to the Company's operations, policies or practices. The Company thanks Mr. Concannon for his valuable contributions over the past 26 years to the work of the Board.

Additionally, on April 1, 2026, the Board appointed Christine Detrick to serve as independent Lead Director, effective as of July 16, 2026. The appointment of Ms. Detrick as Lead Director is subject to her re-election to the Board at the Annual Meeting.

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| | |
|:---|:---|
| **Item 7.01** | **Regulation FD Disclosure.** |

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A copy of the Company's press release announcing Mr. Concannon's retirement and Ms. Detrick's appointment is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in Item 7.01 of this report and Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing.

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| | |
|:---|:---|
| **Item 9.01** | **Financial Statements and Exhibits.** |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Exhibits

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| | |
|:---|:---|
| **Number** | **Title** |
| [99.1](tm2610933d1_ex99-1.htm) | [Press release, dated April 2, 2026](tm2610933d1_ex99-1.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
|  | **CRA INTERNATIONAL, INC.** | **CRA INTERNATIONAL, INC.** |
| Dated: April 2, 2026 | By: | /s/ Eric Nierenberg |
|  |  | Eric Nierenberg |
|  |  | *Executive Vice President, Chief Financial Officer and Treasurer* |

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## Exhibit 99.1

**Exhibit 99.1**

![](tm2610933d1_ex99-1img001.jpg)

**Charles River Associates (CRA) Announces Appointment of Director Christine Detrick as Lead Independent Director, Effective July 16, 2026**

*Lead Independent Director William Concannon to Retire After 26 Years of Distinguished Service*

BOSTON--(BUSINESS WIRE)—April 2, 2026-- <u>Charles River Associates</u> (NASDAQ: CRAI), a worldwide leader in providing <u>economic, financial, and <u>management consulting services</u></u>, today announced that current Director Christine Detrick will assume the role of independent Lead Director of the Board of Directors following the planned retirement of current independent Lead Director William Concannon. Mr. Concannon's retirement will take effect at CRA's 2026 Annual Meeting of Shareholders, which is scheduled for July 16, 2026.

"We would like to thank Bill for his leadership, sound judgment, and steadfast commitment to CRA's success as Lead Director over the past six years, and as a member of the Board for the past 26 years," said <u>Paul Maleh</u>, CRA's Chairman of the Board, Chief Executive Officer and President. "Bill has provided a steady hand through the various stages of our growth and prosperity, and for that we are deeply grateful. We are also pleased that Christine, with her extensive governance experience, has agreed to serve as our next independent Lead Director."

Mr. Concannon has served on CRA's Board since 2000 and as its Lead Director since 2020. He informed the Board of his decision to retire in order to spend more time with family and other activities. Ms. Detrick has been a member of CRA's Board since 2020 and currently serves as Chairperson of the Nominating and Corporate Governance Committee. The appointment of Ms. Detrick as Lead Director is subject to her re-election to the Board at the 2026 Annual Meeting of Shareholders.

**About Charles River Associates (CRA)**<br> Charles River Associates<sup>®</sup> is a leading global consulting firm specializing <u>in economic, financial, and management consulting services</u>. CRA advises clients on economic and financial matters pertaining to litigation and regulatory proceedings, and guides corporations through critical business strategy and performance-related issues. Since 1965, clients have engaged CRA for its unique combination of functional expertise and industry knowledge, and for its objective solutions to complex problems. Headquartered in Boston, CRA has offices throughout the world. Detailed information about Charles River Associates, a registered trade name of CRA International, Inc., is available at <u>www.crai.com</u>. Follow us on <u>LinkedIn</u>, <u>Instagram</u>, and <u>Facebook</u>.

Charles River Associates

<u>media@crai.com</u>

617-425-3315

Nicholas Manganaro

Sharon Merrill Advisors

<u>CRAI@investorrelations.com</u>

617-542-5300