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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 April 2026
Commission File Number: 001-41369
Osisko Development Corp.
(Translation of registrant’s name into English)
1100 Avenue des Canadiens-de-Montréal, Suite 300
(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 x 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.
EXHIBIT INDEX
| Exhibit | ||
| 99.1 | Osisko Development Corp. Notice of Record and Meeting Dates – dated April 27, 2026 |
SIGNATURES
| Osisko Development Corp. | |
| (Registrant) | |
| Date: April 27, 2026 | /s/ Laurence Farmer |
| Laurence Farmer | |
| General Counsel and Vice President Strategic Development |
Exhibit 99.1
TSX TRUST COMPANY
VIA ELECTRONIC TRANSMISSION
April 27, 2026
TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:
| 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:
| 1 | ISIN: | CA68828E8099 |
| CUSIP: | 68828E809 | |
| 2 | Date Fixed for the Meeting: | June 23, 2026 |
| 3 | Record Date for Notice: | May 11, 2026 |
| 4 | Record Date for Voting: | May 11, 2026 |
| 5 | Beneficial Ownership Determination Date: | May 11, 2026 |
| 6 | Classes or Series of Securities that entitle the holder to receive Notice of the Meeting: | COMMON SHARES |
| 7 | Classes or Series of Securities that entitle the holder to vote at the meeting: | COMMON SHARES |
| 8 | Business to be conducted at the meeting: | Annual and Special |
| 9 | Notice-and-Access: | |
| Registered Shareholders: | YES | |
| Beneficial Holders: | YES | |
| Stratification Level: | Not Applicable | |
| 10 | Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners: | YES |
| 11 | Issuer paying for delivery to Objecting Beneficial Owners: | YES |
Yours truly,
TSX Trust Company
| 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 |
| T 604 689-3334 | T 403 218-2800 | T 416 361-0930 | T 514 395-5964 |