# EDGAR Filing Document

**Accession Number:** 0001964979
**File Stem:** 0001193125-26-242009
**Filing Date:** 2026-5
**Character Count:** 8254
**Document Hash:** 12fbf6585dac1437a2760aadcf454d2b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-242009.hdr.sgml**: 20260527

**ACCESSION NUMBER**: 0001193125-26-242009

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 10

**CONFORMED PERIOD OF REPORT**: 20260520

**ITEM INFORMATION**: Changes in Registrant's Certifying Accountant

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260527

**DATE AS OF CHANGE**: 20260527

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALLURION TECHNOLOGIES, INC.
- **CENTRAL INDEX KEY:** 0001964979
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41767
- **FILM NUMBER:** 261026793

**BUSINESS ADDRESS:**
- **STREET 1:** 11 HURON DR STE 200
- **CITY:** NATICK
- **STATE:** MA
- **ZIP:** 01760
- **BUSINESS PHONE:** 508-647-4000

**MAIL ADDRESS:**
- **STREET 1:** 11 HURON DR STE 200
- **CITY:** NATICK
- **STATE:** MA
- **ZIP:** 01760

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALLURION TECHNOLOGIES HOLDINGS, INC.
- **DATE OF NAME CHANGE:** 20230207

?xml version='1.0' encoding='ASCII'? 8-K

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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):** May 20, 2026<br>

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Allurion Technologies, Inc.

**(Exact name of Registrant as Specified in Its Charter)**

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| | | |
|:---|:---|:---|
| Delaware | 001-41767 | 92-2182207 |
| **(State or Other Jurisdiction<br>of Incorporation)** | **(Commission File Number)** | **(IRS Employer<br>Identification No.)** |
| 11 Huron Drive |  |  |
| Natick**,** Massachusetts |  | 01760 |
| **(Address of Principal Executive Offices)** |  | **(Zip Code)** |

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**Registrant's Telephone Number, Including Area Code:** (508) 647-4000<br>

Not Applicable

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

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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))

**Securities registered pursuant to Section 12(b) of the Act:**

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| | | |
|:---|:---|:---|
| **<br>Title of each class** | **Trading<br>Symbol(s)** | **<br>Name of each exchange on which registered** |
| Common stock, par value $0.0001 per share | ALUR | N/A |
| Warrants to purchase 0.056818 shares of common stock, each at an exercise price of $202.50 per share of common stock | ALUR WS | N/A |

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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 4.01 Changes in Registrant's Certifying Accountant.
*Dismissal of Independent Registered Public Accounting Firm*

Deloitte & Touche LLP ("Deloitte") has served as the independent registered public accounting firm for Allurion Technologies, Inc. (the "Company") since 2016. On May 22, 2026 (the "Effective Date"), Deloitte was dismissed as our independent registered public accounting firm. The decision to dismiss Deloitte was approved by the Audit Committee of the Board of Directors (the "Audit Committee") of the Company.

The reports of Deloitte on our consolidated financial statements for the fiscal years ended December 31, 2025 and 2024 did not contain an adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principles.

During our two most recent fiscal years and the subsequent period from January 1, 2026 to May 22, 2026, there were (i) no disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions thereto) with Deloitte on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which disagreement, if not resolved to the satisfaction of Deloitte, would have caused it to make reference to the subject matter of the disagreement in connection with its report and (ii) no reportable events (as described in Item 304(a)(1)(v) of Regulation S-K), except for the existence of material weaknesses in internal control over financial reporting for fiscal years ended December 31, 2024 and 2025 and the interim period ended May 22, 2026 relating to (a) insufficient segregation of duties in the financial statement close process; (b) a lack of sufficient levels of staff with public company and technical accounting experience to maintain proper control activities and perform risk assessment and monitoring activities and (c) insufficient information systems controls, including access and change management controls, as previously disclosed in our annual and periodic filings with the Securities and Exchange Commission ("SEC") during these periods.

We provided Deloitte with a copy of the disclosures made in this Item 4.01 and requested Deloitte to furnish us with a letter addressed to the SEC, stating whether it agrees with the statements made by us and, if not, stating the respects in which it does not agree. A copy of Deloitte's letter to the SEC dated May 27, 2026 regarding these statements is filed as Exhibit 16.1 to this Current Report on Form 8-K.

*Appointment of New Independent Registered Public Accounting Firm* 

On May 20, 2026, the Audit Committee appointed CBIZ CPAs P.C. ("CBIZ") as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026, effective as of May 20, 2026.

During our two most recent fiscal years and the subsequent period from January 1, 2026 to May 22, 2026, we did not consult with CBIZ regarding any of the matters or events set forth in Item 304(a)(2)(i) and (ii) of Regulation S-K.

## Item 9.01 Financial Statements and Exhibits.
(d) Exhibits

The following exhibits are being filed herewith:

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| | |
|:---|:---|
| Exhibit | Description |
| 16.1 | [<u>Letter from Deloitte & Touche LLP dated May 27, 2026.</u>](alur-ex16_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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| | | | |
|:---|:---|:---|:---|
|  |  |  | **ALLURION TECHNOLOGIES, INC.** |
| Date: | May 27, 2026 | By:  | /s/ Brendan Gibbons |
|  |  | Name:<br>Title: | Brendan Gibbons<br>Chief Legal Officer |

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## Exhibit 16.1

**Exhibit 16.1**

May 27, 2026

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549-7561

Dear Sirs/Madams:

We have read Item 4.01 of Allurion Technologies, Inc.'s Form 8-K dated May 27, 2026, and have the following comments:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.We agree with the statements made in the section titled "*Dismissal of Independent Registered Public Accounting Firm*".

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.We have no basis on which to agree or disagree with the statements made in the section titled "*Appointment of New Independent Registered Public Accounting Firm*".

Yours truly,

/s/ Deloitte & Touche LLP

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