[SCHEDULE 13D] Osisko Development Corp. SEC Filing

Rhea-AI Filing Summary

Double Zero Capital, LP and affiliated filers acquired a substantial position in Osisko Development Corp. (ODV) through a private placement that closed August 15, 2025. Double Zero purchased 36,600,000 units at US$2.04 per unit and received 1,464,000 Shares as an investment fee, paying US$74,664,000 from working capital.

After giving effect to a contractual "Blocker Agreement," the reporting persons disclose beneficial ownership of 47,476,245 Shares, representing 19.9% of outstanding common shares. The holders also control warrants to purchase 18,300,000 Shares exercisable at US$2.56 through August 15, 2027, but exercise is restricted so as not to exceed the 19.9% ownership cap without approvals. The parties obtained investor rights including the right to nominate one director and customary pre-emptive/top-up rights. The Schedule 13D was filed late due to administrative oversight.

Insights

Financial Analyst

TL;DR: Double Zero acquired a near-20% economic stake with governance rights but is contractually capped from increasing ownership without approvals.

Double Zero's purchase of 36.6 million units plus 1.464 million fee shares for US$74.66 million funds a meaningful strategic position in ODV. The disclosed 19.9% stake is material for a single investor and the attached investor rights (board nomination, pre-emptive and top-up rights) give the holder formal governance influence. However, the Blocker Agreement limits immediate upside from warrant exercise and constrains control unless approvals are secured. Financing from working capital suggests no new debt financing tied to the purchase.

M&A / Corporate Governance Specialist

TL;DR: Reporting persons secured director nomination and investor protections but contractual limits on ownership reduce takeover/control risk.

The Investor Rights Agreement and director nomination indicate an intent to obtain board influence and protect future participation in financings. These rights are typical in strategic private placements and could facilitate constructive engagement or negotiated transactions. The Blocker and warrant acceleration mechanics, however, prevent immediate conversion into a controlling stake and reduce near-term path to control, limiting hostile takeover potential absent shareholder, exchange and regulatory approvals.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

Osisko Development Corp.

(Name of Issuer)

Common Shares, no par value

(Title of Class of Securities)

68828E809

(CUSIP Number)

Double Zero Capital, LP
2140 South Dupont Highway,
Camden, DE, 19934
702-863-3551

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

08/15/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 68828E809

1

Name of reporting person

Double Zero Capital, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 47,476,245.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 47,476,245.00

11

Aggregate amount beneficially owned by each reporting person

47,476,245.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

19.9 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person:

(1) These Shares are held (or issuable upon the exercise of warrants held) for the account of Double Zero Capital, LP, a Delaware limited partnership ("Double Zero"). The warrants are subject to a "blocker" agreement that limits the shareholdings of Double Zero in the Issuer to no greater than 19.9% of the then-outstanding common shares of the Issuer, unless requisite shareholder, stock exchange and regulatory approvals have been obtained. As a result of the "blocker" agreement, the reporting persons own or are deemed to beneficially own only 47,476,245 shares. Without giving effect to the "blocker" agreement, the reporting persons would own or would be deemed to beneficially own 56,364,000 Shares. (2) Based on (i) 138,044,767 Shares outstanding as of August 12, 2025, per the Management's Discussion and Analysis for the three and nine months ended June 30, 2025, included in the Form 6-K furnished to the Commission by the Issuer on August 13, 2025, (ii) 58,560,000 Shares underlying units sold in the "bought deal" brokered private placement that closed on August 15, 2025, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, (iii) 40,505,330 Shares underlying units sold in the non-brokered private placement that closed on August 15, 2025, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, (iv) 1,464,000 Shares issued to Double Zero as investment fee payment, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, and (v) 18,300,000 Shares issuable upon the exercise of warrants held by Double Zero, which are subject to a "blocker" agreement that limits the shareholdings of Double Zero in the Issuer to no greater than 19.9% of the then-outstanding common shares of the Issuer unless requisite shareholder, stock exchange and regulatory approvals have been obtained. Without giving effect to the "blocker" agreement, Double Zero would beneficially own 56,364,000 Shares, representing approximately 23.62% of the outstanding Shares plus the number of Shares issuable to Double Zero upon exercise of the warrants, based on the assumptions above.

SCHEDULE 13D

CUSIP No. 68828E809

1

Name of reporting person

Brand Name GP, LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 47,476,245.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 47,476,245.00

11

Aggregate amount beneficially owned by each reporting person

47,476,245.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

19.9 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

(1) These Shares are held (or issuable upon the exercise of warrants held) for the account of Double Zero. Brand Name GP LLC a Delaware limited liability company ("Brand Name GP"), is the general partner of Double Zero and, as such, may be deemed to beneficially own the securities held by Double Zero. Brand Name GP disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any. The warrants are subject to a "blocker" agreement that limits the shareholdings of Double Zero in the Issuer to no greater than 19.9% of the then-outstanding common shares of the Issuer unless requisite shareholder, stock exchange and regulatory approvals have been obtained. As a result of the "blocker" agreement, the reporting persons own or are deemed to beneficially own only 47,476,245 Shares. Without giving effect to the "blocker" agreement, the reporting persons would own or would be deemed to beneficially own 56,364,000 Shares. (2) Based on (i) 138,044,767 Shares outstanding as of August 12, 2025, per the Management's Discussion and Analysis of the Issuer for the three and nine months ended June 30, 2025, included in the Form 6-K furnished to the Commission by the Issuer on August 13, 2025, (ii) 58,560,000 Shares underlying units sold in the "bought deal" brokered private placement that closed on August 15, 2025, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, (iii) 40,505,330 Shares underlying units sold in the non-brokered private placement that closed on August 15, 2025, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, (iv) 1,464,000 Shares issued to Double Zero as investment fee payment, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, and (v) 18,300,000 Shares issuable upon the exercise of warrants held by Double Zero, which are subject to a "blocker" agreement that limits the shareholdings of Double Zero in the Issuer to no greater than 19.9% of the then-outstanding common shares of the Issuer unless requisite shareholder, stock exchange and regulatory approvals have been obtained. Without giving effect to the "blocker" agreement, Double Zero would beneficially own 56,364,000 Shares, representing approximately 23.62% of the outstanding Shares plus the number of Shares issuable to Double Zero upon exercise of the warrants, based on the assumptions above.

SCHEDULE 13D

CUSIP No. 68828E809

1

Name of reporting person

Wen Hou

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 47,476,245.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 47,476,245.00

11

Aggregate amount beneficially owned by each reporting person

47,476,245.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

19.9 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

(1) These Shares are held (or issuable upon the exercise of warrants held) for the account of Double Zero. Brand Name GP is the general partner of Double Zero. Mr. Wen Hou is the manager of Brand Name GP and may also be deemed to beneficially own the securities held by Double Zero. Mr. Hou disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any. The warrants are subject to a "blocker" agreement that limits the shareholdings of Double Zero in the Issuer to no greater than 19.9% of the then-outstanding common shares of the Issuer unless requisite shareholder, stock exchange and regulatory approvals have been obtained. As a result of the "blocker" agreement, the reporting persons own or are deemed to beneficially own only 47,476,245 shares. Without giving effect to the "blocker" agreement, the reporting persons would own or would be deemed to beneficially own 56,364,000 Shares. (2) Based on (i) 138,044,767 Shares outstanding as of August 12, 2025, per the Management's Discussion and Analysis for the three and nine months ended June 30, 2025, included in the Form 6-K furnished to the Commission by the Issuer on August 13, 2025, (ii) 58,560,000 Shares underlying units sold in the "bought deal" brokered private placement that closed on August 15, 2025, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, (iii) 40,505,330 Shares underlying units sold in the non-brokered private placement that closed on August 15, 2025, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, (iv) 1,464,000 Shares issued to Double Zero as investment fee payment, per the press release included in the Form 6-K furnished to the Commission by the Issuer on August 15, 2025, and (v) 18,300,000 Shares issuable upon the exercise of warrants held by Double Zero, which are subject to a "blocker" agreement that limits the shareholdings of Double Zero in the Issuer to no greater than 19.9% of the then-outstanding common shares of the Issuer unless requisite shareholder, stock exchange and regulatory approvals have been obtained. Without giving effect to the "blocker" agreement, Double Zero would beneficially own 56,364,000 Shares, representing approximately 23.62% of the outstanding Shares plus the number of Shares issuable to Double Zero upon exercise of the warrants, based on the assumptions above.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Shares, no par value
(b)	Name of Issuer: Osisko Development Corp.
(c)	Address of Issuer's Principal Executive Offices: 1100 Avenue des Canadiens-de-Montreal, Suite 300, Montreal, QUEBEC, CANADA , H3B 2S2.
Item 1 Comment: Due to administrative oversight, this Statement is being filed late.
Item 2.	Identity and Background
(a)	This Statement is being filed jointly by: (i) Double Zero Capital, LP, a Delaware limited partnership ("Double Zero"), which directly holds the Shares of the Issuer reported herein. (ii) Brand Name GP, LLC, a Delaware limited liability company ("Brand Name GP"), which serves as the general partner of Double Zero. As general partner, Brand Name GP has the power to direct the voting and disposition of the securities held by the Partnership. (iii) Wen Hou, as the manager of Brand Name GP. Each of the foregoing is referred to as a "Reporting Person" and collectively as the "Reporting Persons." Each of the Reporting Persons is party to that certain Joint Filing Agreement, as further described in Item 6. Accordingly, the Reporting Persons are hereby filing a joint Schedule 13D.
(b)	The principal business address of Double Zero is 2140 South Dupont Highway, Camden, Delaware 19934. The principal business address of Brand Name GP is 10785 West Twain Ave., Suite 250, Las Vegas, Nevada 89135. Mr. Hou is the manager of Brand Name GP and his principal business address is c/o Brand Name GP LLC, 10785 West Twain Ave., Suite 250, Las Vegas, Nevada 89135.
(c)	The principal business of Double Zero is to invest in securities and engage in all related activities and transactions and its principal business address is listed above. The principal business of Brand Name GP is to serve as the general partner of Double Zero to manage and control, whether directly or indirectly, the investments and activities of Double Zero and its principal business address is listed above. The principal occupation of Mr. Hou is to serve as the manager of Brand Name GP and the principal business address of Brand Name GP is listed above.
(d)	No Reporting Person has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	No Reporting Person has, during the last five years, been party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.
(f)	Double Zero and Brand Name GP are organized under the laws of the State of Delaware. Mr. Hou is a citizen of the United States of America.
Item 3.	Source and Amount of Funds or Other Consideration
	On August 15, 2025, Double Zero acquired (i) an aggregate of 36,600,000 units of the Issuer (the "Units"), at a price of US$2.04 per Unit, with each Unit consisting of one Share and one-half of one Share purchase warrant, and, (ii) an aggregate of 1,464,000 Shares as payment of an investment fee, subject to a 4-month and one day hold period pursuant to applicable Canadian securities laws as part of a "bought deal" brokered private placement. The aggregate consideration paid by Double Zero in connection with the private placement was US$74,664,000. Double Zero financed the purchase price with funds from its working capital, which includes proceeds from realized gains on prior investments.
Item 4.	Purpose of Transaction
	The Reporting Persons believe that the Shares, when purchased, represented an attractive investment opportunity. No Reporting Person has any present plan or proposal which would relate to or result in any of the matters set forth in subparagraphs (a) - (j) of Item 4 of Schedule 13D except as set forth herein or such as would occur upon or in connection with completion of, or following, any of the actions discussed herein. The Reporting Persons intend to review their investment in the Issuer on a continuing basis. Depending on various factors including, without limitation, the Issuer's financial position and investment strategy, the price levels of the Shares, conditions in the securities markets and general economic and industry conditions, the Reporting Persons may in the future take such actions with respect to their investment in the Issuer as they deem appropriate including, without limitation, engaging in communications with management and the Board of Directors of the Issuer, engaging in discussions with stockholders of the Issuer or other third parties about the Issuer and the Reporting Persons' investment, including potential business combinations or dispositions involving the Issuer or certain of its businesses, making recommendations or proposals to the Issuer concerning changes to the capitalization, ownership structure, board structure (including board composition), potential business combinations or dispositions involving the Issuer or certain of its businesses, or suggestions for improving the Issuer's financial and/or operational performance, purchasing additional Shares, selling some or all of their Shares, engaging in short selling of or any hedging or similar transaction with respect to the Shares, including swaps and other derivative instruments, or changing their intention with respect to any and all matters referred to in Item 4.
Item 5.	Interest in Securities of the Issuer
(a)	The information set forth in the cover pages of this Schedule 13D is incorporated herein by reference, including footnotes thereto.
(b)	These Shares are held (or issuable upon the exercise of warrants held) for the account of Double Zero. Brand Name GP is the general partner of Double Zero. Mr. Wen Hou is the manager of Brand Name GP. As a result of these relationships, each of Brand Name GP and Mr. Wen Hou may also be deemed to beneficially own the securities held by Double Zero, provided that each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and the filing of this Statement shall not be construed as an admission that any such person is, for the purposes of Section 13(d) or Section 13(g) of the Securities Exchange Act of 1934, the beneficial owner of any securities reported herein.
(c)	Except as set forth in this Statement, which is incorporated herein by reference, none of the Reporting Persons, nor, to the best of the Reporting Persons' knowledge, any of their respective executive officers, managers or directors, as applicable, has acquired or disposed of, any securities of the Issuer from the 60 days prior to the date of the event which requires the filing of this statement up through the date hereof.
(d)	Except as set forth in this Statement, no person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, the securities reported herein.
(e)	Not applicable.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	Pursuant to Rule 13d-1(k) promulgated under the Act, the Reporting Persons entered into a Joint Filing Agreement (the "Joint Filing Agreement") with respect to the joint filing of this Schedule 13D and any amendment or amendments hereto. The foregoing description of the Joint Filing Agreement does not purport to be complete and is qualified in its entirety by the contents of the Joint Filing Agreement, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Double Zero holds Warrants to purchase Shares that are governed by a Warrant Indenture dated August 15, 2025 by and between the Issuer and TSX Trust Company, as warrant agent, as the same has been and may be supplemented or amended from time to time (the "Warrant Indenture"). Pursuant to the terms of Warrant Indenture, each Warrant entitles Double Zero to purchase one Common Share at a price of US$2.56 per Common Share on or prior to August 15, 2027, subject to acceleration. The Warrants are subject to a Supplementary Agreement dated August 15, 2025 by and between the Issuer and Double Zero (the "Blocker Agreement"), such that Double Zero may not exercise any Warrants that would result in it holding (directly or indirectly) over 19.9% of the issued and outstanding Common Shares (after giving effect to such exercise), unless requisite shareholder, stock exchange and regulatory approvals have been obtained. The foregoing descriptions of the Warrant Indenture and Blocker Agreement do not purport to be complete and are qualified in their entirety by the contents of the Warrant Indenture and Blocker Agreement, respectively, copies of which are each attached hereto as Exhibit 99.2 and Exhibit 99.3 and are incorporated herein by reference. Double Zero and the Issuer also entered into an investor rights agreement effective as of August 15, 2025 (the "Investor Rights Agreement") pursuant to which, among other things, the Issuer agreed to provide Double Zero with rights to nominate one director to the board of directors of the Issuer, customary pre-emptive rights and top-up rights in respect of certain acquisitions. In addition, pursuant to the terms of the Investor Rights Agreement, Double Zero has agreed to provide certain voting support to the Issuer. The foregoing summary is qualified in its entirety by reference to the Investor Rights Agreement filed as Exhibit 99.4 hereto. Except as described in this Item 6, there are no contracts, arrangements, understandings or relationships (legal or otherwise) between the persons named in Item 2 or, to the best of the Reporting Persons' knowledge, between such persons and any other person with respect to any securities of the Issuer, including, but not limited to, transfer or voting of any of the securities, finder's fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies, including any securities pledged or otherwise subject to a contingency the occurrence of which would give another person voting power or investment power over such securities other than standard default and similar provisions contained in loan agreements.
Item 7.	Material to be Filed as Exhibits.
	99.1 Joint Filing Agreement, dated as of August 28, 2025, among Double Zero Capital, LP, Brand Name GP, LLC and Wen Hou. 99.2 Warrant Indenture 99.3 Blocker Agreement 99.4 Investor Rights Agreement

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Double Zero Capital, LP

Signature:	/s/ Wen Hou
Name/Title:	Manager
Date:	08/28/2025

Brand Name GP, LLC

Signature:	/s/ Wen Hou
Name/Title:	Manager
Date:	08/28/2025

Wen Hou

Signature:	/s/ Wen Hou
Name/Title:	Manager
Date:	08/28/2025

FAQ

How many Osisko Development (ODV) shares does Double Zero beneficially own?

The reporting persons beneficially own 47,476,245 Shares, representing 19.9% of outstanding common shares after applying the Blocker Agreement.

What did Double Zero pay for the private placement in ODV?

Double Zero paid an aggregate of US$74,664,000 for 36,600,000 units at US$2.04 per unit and also received 1,464,000 fee shares.

Are there warrants included and what are their terms?

Yes. Double Zero holds warrants to purchase 18,300,000 Shares at an exercise price of US$2.56 expiring on or before August 15, 2027, subject to the Blocker Agreement.

What governance or investor protections did Double Zero receive?

Under an Investor Rights Agreement, Double Zero received the right to nominate one director and customary pre-emptive and top-up rights, and agreed to provide certain voting support.

Why does the filing say ownership is capped at 19.9%?

A Blocker Agreement prevents Double Zero from exercising warrants or acquiring shares that would result in ownership over 19.9% without shareholder, exchange and regulatory approvals.

Was the Schedule 13D filed on time?

No. The filing states it is being filed late due to administrative oversight.