# EDGAR Filing Document

**Accession Number:** 0001431852
**File Stem:** 0001104659-26-018175
**Filing Date:** 2026-2
**Character Count:** 5385
**Document Hash:** 8d54d561c26d14090099ef4e06e7f5b4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-018175.hdr.sgml**: 20260220

**ACCESSION NUMBER**: 0001104659-26-018175

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260220

**FILED AS OF DATE**: 20260220

**DATE AS OF CHANGE**: 20260220

**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:** 26660286

**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>February 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](tm266964d1_ex99-1.htm) | [Confirmation of Notice of Record and Meeting Dates](tm266964d1_ex99-1.htm) |

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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, thereunto duly authorized.

---

| | |
|:---|:---|
|  | **Osisko Development Corp.** |
|  | (Registrant) |
| Date: February 20, 2026 | /s/ Alexander Dann |
|  | Alexander Dann |
|  | Chief Financial Officer and VP Finance |

---

## Exhibit 99.1

**Exhibit 99.1**

![](tm266964d1_ex99-1img001.jpg)

**TSX TRUST COMPANY**

**VIA ELECTRONIC TRANSMISSION**

February 20, 2026

**TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:**

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| | |
|:---|:---|
| **RE:** | **OSISKO DEVELOPMENT CORP.** |
| | **Confirmation of Notice of Record and Meeting Dates** |

---

We are pleased to confirm that the Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities.

We advise the following with respect to the upcoming Annual and Special Meeting of Security Holders for the subject issuer:

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1 | ISIN: | CA68828E8099 |
|  | CUSIP: | 68828E809 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2 | Date Fixed for the Meeting: | May 14, 2026 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3 | Record Date for Notice: | March 20, 2026 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4 | Record Date for Voting: | March 20, 2026 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5 | Beneficial Ownership Determination Date: | March 20, 2026 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6 | Classes or Series of Securities that entitle the holder to receive Notice of the Meeting: | COMMON SHARES |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7 | Classes or Series of Securities that entitle the holder to vote at the meeting: | COMMON SHARES |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8 | Business to be conducted at the meeting: | Annual and Special |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9 | Notice-and-Access: |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registered Shareholders: | YES |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Beneficial Holders: | YES |
|  | Stratification Level: | Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10 | Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners: | YES |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11 | Issuer paying for delivery to Objecting Beneficial Owners: | YES |

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Yours truly,

**TSX Trust Company**

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| | | | |
|:---|:---|:---|:---|
| **VANCOUVER** | **CALGARY** | **TORONTO** | **MONTRÉAL** |
| 733 Seymour Street, | Telus Sky Building | 301 - 100 Adelaide Street West | 1701 - 1190, avenue des |
| Suite #2310 | 2110, 685 Centre Street SW | Toronto ON M5H 4H1 | Canadiens-de-Montréal, C. P. 37 |
| Vancouver, BC V6B 0S6 | Calgary Alberta T2G 1S5 | **Toll Free** 1-866-600-5869 | Montréal (Québec) H3B 0G7 |
|  |  | **Toll Free** 1-866-600-5869 |  |
| **T** 604 689-3334 | **T** 403 218-2800 | **T** 416 361-0930 | **T** 514 395-5964 |

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