# EDGAR Filing Document

**Accession Number:** 0001066605
**File Stem:** 0001193125-25-328707
**Filing Date:** 2025-12
**Character Count:** 3472
**Document Hash:** 8895488d13c0025ee09ee45e56c2d6ec
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-328707.hdr.sgml**: 20251222

**ACCESSION NUMBER**: 0001193125-25-328707

**CONFORMED SUBMISSION TYPE**: 15-12G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251222

**DATE AS OF CHANGE**: 20251222

**EFFECTIVENESS DATE**: 20251222

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HEIDRICK & STRUGGLES INTERNATIONAL INC
- **CENTRAL INDEX KEY:** 0001066605
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-EMPLOYMENT AGENCIES [7361]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 362681268
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-25837
- **FILM NUMBER:** 251592432

**BUSINESS ADDRESS:**
- **STREET 1:** 233 S WACKER DRIVE
- **STREET 2:** SUITE 4900
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606-6303
- **BUSINESS PHONE:** 3124961200

**MAIL ADDRESS:**
- **STREET 1:** 233 S WACKER DRIVE
- **STREET 2:** SUITE 4900
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM 15** 

**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION** 

**UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934.** 

**Commission File Number: 000-25837** 

## Heidrick & Struggles International, Inc.
**(Exact name of registrant as specified in its charter)** 

**233 South Wacker Drive, Suite 4900 Chicago, Illinois 60606-6303** 

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

**Common Stock, par value $0.01 per share** 

**(Title of each class of securities covered by this Form)** 

**None** 

**(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)** 

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

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| | |
|:---|:---|
|  Rule 12g-4(a)(1) | ☒ |
|  Rule 12g-4(a)(2) | ☐ |
|  Rule 12h-3(b)(1)(i) | ☒ |
|  Rule 12h-3(b)(1)(ii) | ☐ |
|  Rule 15d-6 | ☐ |
|  Rule 15d-22(b) | ☐ |

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Approximate number of holders of record as of the certification or notice date: One (1)\*

\* <u>Explanatory Note</u>: On December 10, 2025, pursuant to the terms of the Agreement and Plan of Merger, dated as of October 5, 2025, by and among Heidrick & Struggles International, Inc., a Delaware corporation (the "<u>Company</u>"), Heron BidCo, LLC, a Delaware limited liability company ("<u>Parent</u>") and Heron Merger Sub, Inc., a Delaware corporation and a direct, wholly-owned subsidiary of Parent ("<u>Merger Sub</u>"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and as a direct, wholly-owned subsidiary of Parent. 

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

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| | | |
|:---|:---|:---|
| Date: December 22, 2025 | **HEIDRICK & STRUGGLES INTERNATIONAL, INC.** | **HEIDRICK & STRUGGLES INTERNATIONAL, INC.** |
|  | By: | /s/ Tracey Heaton |
|  | Name: | Tracey Heaton |
|  | Title: | Chief Legal Officer & Corporate Secretary |

---