UNITED ~~STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549~~STATES

~~Form~~SECURITIES ~~6-K~~AND EXCHANGE COMMISSION

~~REPORT~~Washington, OFD.C. ~~FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934~~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 February 2026

Commission File Number: 001-41369

Osisko Development Corp.~~(Translation of registrant's name into English)~~

~~1100 Avenue des Canadiens-de-Montréal, Suite 300, Montréal, Quebec H3B 2S2~~(~~Address~~Translation of ~~principal~~registrant’s ~~executive~~name ~~office~~into English)

~~Indicate~~1100 byAvenue ~~check~~des ~~mark whether the registrant files or will file annual reports under cover of Form 20~~Canadiens-~~F or Form 40~~de-~~F.Form 20-F [ ] Form 40-F [~~Montréal, Suite ~~X ]~~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

EXHIBIT INDEX

Exhibit Number		Description
99.1		Press Release dated February 3, 2026

Exhibit

99.1		Osisko Development Corp. Code of Ethics – dated November 5, 2025

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.	~~Osisko Development Corp.~~
	(Registrant)	~~(Registrant)~~
Date: February 3, 2026		/s/ Alexander Dann
Date: February 5, 2026	/s/ Laurence Farmer
		Alexander Dann
	Laurence Farmer
		Chief Financial Officer and VP Finance
	General Counsel and Vice President Strategic Development

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