ODV files 6-K with Exhibit 99.1 press release and Form 40-F election

Rhea-AI Filing Summary

Osisko Development Corp. submitted a Form 6-K reporting package (Commission File No. 001-41369) that lists a press release as an exhibit. The filing indicates the company files annual reports under Form 40-F rather than Form 20-F. The exhibit index identifies Exhibit 99.1 as a press release dated October 8, 2025. The document is signed by Alexander Dann, Chief Financial Officer and Vice President Finance, with a signature date of October 8, 2025. The filing provides corporate contact/address information in Montréal but contains no financial tables, earnings data, or transaction details.

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 October 2025

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 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 October 8, 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.
		(Registrant)
Date: October 8, 2025		/s/ Alexander Dann
		Alexander Dann
		Chief Financial Officer and VP Finance

FAQ

What did Osisko Development (ODV) file on October 8, 2025?

The company filed a Form 6-K that includes a press release as Exhibit 99.1 and indicates it files annual reports on Form 40-F.

Does the filing include financial results or transactions for ODV?

No. The filing contains no financial tables, earnings data, or details of transactions.

Which exhibit is listed in the Osisko Development 6-K and what is its date?

The filing lists Exhibit 99.1, described as a press release dated October 8, 2025.

Who signed the Form 6-K for Osisko Development (ODV)?

The report is signed by Alexander Dann, Chief Financial Officer and Vice President Finance, dated October 8, 2025.

Under which SEC filing regime does Osisko Development state it files annual reports?

The company indicated it files annual reports under Form 40-F (checked on the form).