# EDGAR Filing Document

**Accession Number:** 0001431852
**File Stem:** 0001104659-26-077074
**Filing Date:** 2026-6
**Character Count:** 5473
**Document Hash:** 73d5cc51a1886f35ede2b3f21859cb5e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-077074.hdr.sgml**: 20260624

**ACCESSION NUMBER**: 0001104659-26-077074

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260623

**FILED AS OF DATE**: 20260624

**DATE AS OF CHANGE**: 20260624

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Osisko Development Corp.
- **CENTRAL INDEX KEY:** 0001431852
- **STANDARD INDUSTRIAL CLASSIFICATION:** GOLD & SILVER ORES [1040]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** Z4
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41369
- **FILM NUMBER:** 261113148

**BUSINESS ADDRESS:**
- **STREET 1:** 1100 AVENUE DES CANADIENS-DE-MONTREAL
- **STREET 2:** SUITE 300
- **CITY:** MONTREAL
- **STATE:** A8
- **ZIP:** H3B 2S2
- **BUSINESS PHONE:** 514 940-0685

**MAIL ADDRESS:**
- **STREET 1:** 1100 AVENUE DES CANADIENS-DE-MONTREAL
- **STREET 2:** SUITE 300
- **CITY:** MONTREAL
- **STATE:** A8
- **ZIP:** H3B 2S2

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Ringbolt Ventures Ltd.
- **DATE OF NAME CHANGE:** 20080408

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER** 

**THE SECURITIES EXCHANGE ACT OF 1934**

**For the month of <u>June 2026</u>**

Commission File Number: **<u>001-41369</u>**

**<u>Osisko Development Corp.</u>**

(Translation of registrant's name into English)

**<u>1100 Avenue des Canadiens-de-Montréal, Suite 300</u>**

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ◻ Form 40-F ⌧

**EXHIBIT INDEX**

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| | |
|:---|:---|
| **Exhibit** |  |
| [99.1](tm2618649d1_ex99-1.htm) | [Osisko Development Corp. Report of Voting Results Pursuant to Section 11.3 of National Instrument 51 102 – Continuous Disclosure Obligations – dated June 23, 2026](tm2618649d1_ex99-1.htm) |

---

**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, thereunto duly authorized.

---

| | |
|:---|:---|
|  | **Osisko Development Corp.** |
|  | (Registrant) |
| Date: June 23, 2026 | /s/ Laurence Farmer |
|  | Laurence Farmer |
|  | General Counsel and Vice President Strategic Development |

---

## Exhibit 99.1

**Exhibit 99.1**

**OSISKO DEVELOPMENT CORP.**

**Report of Voting Results Pursuant to Section 11.3 of<br> National Instrument 51-102 – *Continuous Disclosure Obligations***

This report sets forth a brief description of each matter that was voted upon at the annual and special meeting of holders of common shares of Osisko Development Corp. (the "**Company**") held on June 23, 2026 (the "**Meeting**") and the outcome of the vote. Further information regarding the business of the Meeting is contained in the Company's management information circular dated May 11, 2026 (the "**Circular**"), which is available on SEDAR+ (<u>www.sedarplus.ca</u>) under the Company's issuer profile.

1. Election of Directors

Each of the seven director nominees proposed by management were elected. Voting was conducted by ballot. The voting results were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Nominee** | **Votes For** | **% of Votes For** | **Votes Against** | **% of Votes<br> Against** |
| Sean Roosen | 202062275 | 98.91% | 2234846 | 1.09% |
| Charles E. Page | 172497611 | 84.44% | 31799510 | 15.56% |
| Michèle McCarthy | 171284316 | 83.84% | 33012804 | 16.16% |
| David Danziger | 169832493 | 83.13% | 34464628 | 16.87% |
| Stephen Quin | 203529000 | 99.62% | 768121 | 0.38% |
| Susan Craig | 203517931 | 99.62% | 779189 | 0.38% |
| Keith McKay | 203583947 | 99.65% | 713174 | 0.35% |

---

2. Appointment of Auditors

PricewaterhouseCoopers LLP was approved to serve as the auditor of the Company for 2026 and at a remuneration to be fixed by the board of directors. Voting was conducted by show of hands. The voting results were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **Votes For** | **% of Votes For** | **Votes Withheld** | **% of Votes Withheld** |
| 225812331 | 99.90% | 219606 | 0.10% |

---

3. Registered Office Resolution

The special resolution (the full text of which is reproduced in the Circular) for the amendment to the Articles of the Company to change the province of the Company's registered office from the Province of Québec to the Province of Ontario was approved. Voting was conducted by show of hands. The voting results were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **Votes For** | **% of Votes For** | **Votes Against** | **% of Votes Against** |
| 204029595 | 99.88% | 241093 | 0.12% |

---

4. Name Change Resolution

The special resolution (the full text of which is reproduced in the Circular) for the change of name of the Company from "Osisko Development Corp." to "Osisko Gold Group Inc." was approved. Voting was conducted by show of hands. The voting results were as follows:

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| | | | |
|:---|:---|:---|:---|
| **Votes For** | **% of Votes For** | **Votes Against** | **% of Votes Against** |
| 224810764 | 99.46% | 1221172 | 0.54% |

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Dated at Toronto, Ontario, this 23<sup>rd</sup> day of June 2026.