[SCHEDULE 13D/A] Osisko Development Corp. SEC Filing

Rhea-AI Filing Summary

Condire entities acquired a package of Osisko Development Corp. securities totaling 23,879,902 common-share equivalents, representing 9.9% of the outstanding common shares based on the filing. On August 15, 2025, Condire Resource purchased 8,777,618 units for $17,994,117 and Condire Alpha purchased 622,382 units for $1,275,883; each unit consisted of one common share and one-half of an "August Warrant" at a unit price of $2.05. The August Warrants are exercisable for an aggregate of 4,700,000 shares at $2.56 per share until August 15, 2027. Separately, on June 30, 2025, Condire Alpha bought 158,000 warrants at a weighted average price of $0.5559 for $119,685. All holdings are subject to a "Blocker Agreement" that caps combined Condire holdings at 9.99% of outstanding shares. The reporting persons state the securities were acquired for investment purposes and currently have no plans that would effect control actions, while reserving the right to change their investment intent.

Positive

• Significant economic stake: Reporting persons hold 23,879,902 share-equivalents representing 9.9% of ODV based on the filing calculation.
• Clear financing: Purchases were financed with working capital and paid in cash, totaling $19,269,999 for units and $119,685 for warrants.
• Warrants provide upside: August Warrants are exercisable for an aggregate of 4,700,000 shares at $2.56 until August 15, 2027.

Negative

• Blocker restricts ownership: A Blocker Agreement limits combined Condire holdings to 9.99%, constraining potential control or larger stakes.
• Potential dilution: Exercise of warrants could increase share count and affect ownership percentages depending on timing and exercise.
• No present plans to influence management: Reporting persons state acquisitions were for investment purposes and currently disavow plans for governance actions.

Insights

Securities Analyst

TL;DR: Condire increased its economic exposure to ODV to 9.9% via purchases and warrants, constrained by a 9.99% blocker and labeled for investment purposes.

The transaction is material due to size: 23,879,902 share-equivalents equals 9.9% of the company on the filing basis, backed by cash purchases totaling $19,269,999 for units plus $119,685 for earlier warrants. The August Warrants convert into 4.7 million shares at $2.56, providing potential additional dilution if exercised. The Blocker Agreement legally constrains combined Condire holdings to below a 10% threshold, limiting any immediate control intent while preserving economic upside. This is a strategic, non-control stake with liquidity and exercise-price details disclosed; investors should note potential future share issuance if warrants are exercised but must refer to the actual Blocker Agreement and Warrant Indenture for legal terms.

Corporate Governance Expert

TL;DR: Large passive stake capped by a blocker suggests an investment-led approach without present governance intentions.

The filing explicitly states the acquisitions were for investment purposes and disclaims present plans for corporate actions. The 9.9% reported position is meaningful yet intentionally kept below the 10% threshold by contract, reducing immediate governance/control implications under typical ownership-trigger rules. The presence of managing members and GP entities as indirect beneficial owners is disclosed, clarifying the ownership chain. For governance impact, the Blocker Agreement and Warrant Indenture attached as exhibits will determine whether future exercise or additional purchases could alter influence; those documents should be reviewed for transfer or aggregation mechanics.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 1)

Osisko Development Corp.

(Name of Issuer)

Common Shares, no par value

(Title of Class of Securities)

68828E809

(CUSIP Number)

Abby T. Gallivan
1717 McKinney Ave., Suite 850
Dallas, TX, 75202
(214)871-6873

(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

Condire Management, 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)

AF

5

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

6

Citizenship or place of organization

TEXAS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 23,879,902.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 23,879,902.00

11

Aggregate amount beneficially owned by each reporting person

23,879,902.00

12

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

13

Percent of class represented by amount in Row (11)

9.9 %

14

Type of Reporting Person (See Instructions)

IA, PN

Comment for Type of Reporting Person:

These shares are held (or issuable upon the exercise of warrants held) for the accounts of Condire Resource Master Partnership, LP, a Cayman Islands exempted limited partnership ("Condire Resource"), and Condire Alpha Partners, LP, a Texas limited partnership ("Condire Alpha"). Condire Management, LP, a Texas limited partnership ("Condire Management"), acts as investment manager to, and manages investment and trading accounts of, Condire Resource and Condire Alpha. As such, Condire Management may be deemed an indirect beneficial owner of securities held by Condire Resource and Condire Alpha. Calculation is based upon (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, filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC on August 15, 2025, and (iv) 1,927,968 Shares issuable upon the exercise of warrants held by Condire Resource and Condire Alpha, which are subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer.

SCHEDULE 13D

CUSIP No. 68828E809

1

Name of reporting person

Condire Management GP Holdings, 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)

AF

5

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

6

Citizenship or place of organization

TEXAS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 23,879,902.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 23,879,902.00

11

Aggregate amount beneficially owned by each reporting person

23,879,902.00

12

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

13

Percent of class represented by amount in Row (11)

9.9 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

These shares are held (or issuable upon the exercise of warrants held) for the accounts of Condire Resource Master Partnership, LP, a Cayman Islands exempted limited partnership ("Condire Resource"), and Condire Alpha Partners, LP, a Texas limited partnership ("Condire Alpha"). Condire Management, LP, a Texas limited partnership ("Condire Management"), acts as investment manager to, and manages investment and trading accounts of, Condire Resource and Condire Alpha. Condire Management GP Holdings, LLC, a Texas limited liability company ("Condire Management GP"), serves as the general partner of Condire Management. As such, Condire Management GP may be deemed an indirect beneficial owner of securities held by Condire Resource and Condire Alpha. Calculation is based upon (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, filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC on August 15, 2025, and (iv) 1,927,968 Shares issuable upon the exercise of warrants held by Condire Resource and Condire Alpha, which are subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer.

SCHEDULE 13D

CUSIP No. 68828E809

1

Name of reporting person

Ryan E. Schedler

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)

AF

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 23,879,902.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 23,879,902.00

11

Aggregate amount beneficially owned by each reporting person

23,879,902.00

12

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

13

Percent of class represented by amount in Row (11)

9.9 %

14

Type of Reporting Person (See Instructions)

IN, HC

Comment for Type of Reporting Person:

These shares are held (or issuable upon the exercise of warrants held) for the accounts of Condire Resource Master Partnership, LP, a Cayman Islands exempted limited partnership ("Condire Resource"), and Condire Alpha Partners, LP, a Texas limited partnership ("Condire Alpha"). Condire Management, LP, a Texas limited partnership ("Condire Management"), acts as investment manager to, and manages investment and trading accounts of, Condire Resource and Condire Alpha. Condire Management GP Holdings, LLC, a Texas limited liability company ("Condire Management GP"), serves as the general partner of Condire Management, and Ryan E. Schedler is a managing member of Condire Management GP. As such, Mr. Schedler may be deemed an indirect beneficial owner of securities held by Condire Resource and Condire Alpha. Calculation is based upon (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, filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC on August 15, 2025, and (iv) 1,927,968 Shares issuable upon the exercise of warrants held by Condire Resource and Condire Alpha, which are subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer.

SCHEDULE 13D

CUSIP No. 68828E809

1

Name of reporting person

Bradley J. Shisler

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)

AF

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 23,879,902.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 23,879,902.00

11

Aggregate amount beneficially owned by each reporting person

23,879,902.00

12

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

13

Percent of class represented by amount in Row (11)

9.9 %

14

Type of Reporting Person (See Instructions)

IN, HC

Comment for Type of Reporting Person:

These shares are held (or issuable upon the exercise of warrants held) for the accounts of Condire Resource Master Partnership, LP, a Cayman Islands exempted limited partnership ("Condire Resource"), and Condire Alpha Partners, LP, a Texas limited partnership ("Condire Alpha"). Condire Management, LP, a Texas limited partnership ("Condire Management"), acts as investment manager to, and manages investment and trading accounts of, Condire Resource and Condire Alpha. Condire Management GP Holdings, LLC, a Texas limited liability company ("Condire Management GP"), serves as the general partner of Condire Management, and Bradley J. Shisler is a managing member of Condire Management GP. As such, Mr. Shisler may be deemed an indirect beneficial owner of securities held by Condire Resource and Condire Alpha. Calculation is based upon (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, filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC 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 Form 6-K filed by the Issuer with the SEC on August 15, 2025, and (iv) 1,927,968 Shares issuable upon the exercise of warrants held by Condire Resource and Condire Alpha, which are subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer.

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, QUEBEC, CANADA , 2S2.
Item 1 Comment: This Schedule 13D amendment relates to common shares, no par value ("Shares"), of Osisko Development Corp. (the "Issuer") held for the accounts of Condire Resource Master Partnership, LP, a Cayman Islands exempted limited partnership ("Condire Resource"), and Condire Alpha Partners, LP, a Texas limited partnership ("Condire Alpha"). Condire Management, LP, a Texas limited partnership ("Condire Management"), acts as investment manager to, and manages investment and trading accounts of, Condire Resource and Condire Alpha. Condire Management GP Holdings, LLC, a Texas limited liability company ("Condire Management GP"), serves as the general partner of Condire Management, and Ryan E. Schedler and Bradley J. Shisler are the managing members of Condire Management GP. As such, each of Condire Management, Condire Management GP, Mr. Schedler and Mr. Shisler may be deemed indirect beneficial owners of securities held by Condire Resource and Condire Alpha.
Item 3.	Source and Amount of Funds or Other Consideration
	On August 15, 2025, Condire Alpha acquired 622,382 units (each, a "Unit") 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 "Brokered Offering") at a price per Unit of $2.05 for an aggregate purchase price of $1,275,883. Each Unit consisted of one Share and one-half of one common Share purchase warrant (each whole common Share purchase warrant, an "August Warrant") with each whole August Warrant entitling the holder thereof to purchase one common Share of the Issuer at a price per share of $2.56, subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer. Condire Alpha financed the purchase price with funds from its working capital. On August 15, 2025, Condire Resource acquired 8,777,618 Units subject to a 4-month and one day hold period pursuant to applicable Canadian securities laws as part of the Brokered Offering at a price per Unit of $2.05 for an aggregate purchase price of $17,994,117. Each Unit consisted of one Share and one-half of one August Warrant with each whole August Warrant entitling the holder thereof to purchase one common Share of the Issuer at a price per share of $2.56, subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer. Condire Resource financed the purchase price with funds from its working capital.
Item 4.	Purpose of Transaction
	The securities covered by this Schedule 13D were acquired for investment purposes. The Reporting Persons have no present plans or proposals that relate to, or that would result in, any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. The Reporting Persons retain the right to change their investment intent, and may, from time to time, acquire additional Shares or other securities of the Issuer, or sell or otherwise dispose of (or enter into plans or arrangements to sell or otherwise dispose of), all or part of the Shares or other securities of the Issuer, if any, beneficially owned by them, in any manner permitted by law.
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.
(b)	The information set forth in the cover pages of this Schedule 13D is incorporated herein by reference.
(c)	On June 30, 2025, Condire Alpha acquired 158,000 common Share purchase warrants (each, a "Warrant") entitling the holder thereof to purchase one common Share of the Issuer at a price per share of $3.00, subject to a "blocker" agreement that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer, in the open market at a weighted average price per share of $0.5559 for an aggregate purchase price of $119,685. Condire Alpha financed the purchase price with funds from its working capital. The range of the price per warrant paid for each purchase by Condire Alpha on June 30, 2025, was $0.54 - $0.56. Each Reporting Person undertakes to provide upon request by the SEC staff full information regarding the number of Warrants purchased at each separate price. Except as otherwise disclosed herein, none of the Reporting Persons, nor, to the best of the Reporting Persons' knowledge, any of their respective executive officers 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 herein, no other person is known by the Reporting Persons to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, Shares beneficially owned by the Reporting Persons.
(e)	N/A
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	The information set forth in Item 3 of this Schedule 13D is incorporated herein by reference. Condire Resource and Condire Alpha each hold August 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. Pursuant to the terms of a warrant indenture (the "Warrant Indenture"), the August Warrants held by Condire Resource and Condire Alpha are exercisable for an aggregate amount of 4,700,000 Shares at an exercise price of $2.56 per Share until August 15, 2027, subject to a "blocker" agreement (the "Blocker Agreement") that limits the combined shareholdings of Condire Resource, Condire Alpha and their affiliates in the Issuer to 9.99% of the then-outstanding common shares of the Issuer. The foregoing descriptions of the Blocker Agreement and Warrant Indenture do not purport to be complete and are qualified in their entirety by the contents of the Blocker Agreement and Warrant Indenture, respectively, copies of which are each attached hereto as Exhibit C and Exhibit D and are incorporated herein by reference.
Item 7.	Material to be Filed as Exhibits.
	Exhibit C - Blocker Agreement Exhibit D - Warrant Indenture

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.

Condire Management, LP

Signature:	/s/ Ryan E. Schedler
Name/Title:	Ryan E. Schedler, Managing Member of Condire Management GP Holdings, LLC, the General Partner of Condire Management, LP
Date:	08/19/2025

Signature:	/s/ Bradley J. Shisler
Name/Title:	Bradley J. Shisler, Managing Member of Condire Management GP Holdings, LLC, the General Partner of Condire Management, LP
Date:	08/19/2025

Condire Management GP Holdings, LLC

Signature:	/s/ Ryan E. Schedler
Name/Title:	Ryan E. Schedler, Managing Member
Date:	08/19/2025

Signature:	/s/ Bradley J. Shisler
Name/Title:	Bradley J. Shisler, Managing Member
Date:	08/19/2025

Ryan E. Schedler

Signature:	/s/ Ryan E. Schedler
Name/Title:	Ryan E. Schedler
Date:	08/19/2025

Bradley J. Shisler

Signature:	/s/ Bradley J. Shisler
Name/Title:	Bradley J. Shisler
Date:	08/19/2025

FAQ

What stake does Condire hold in Osisko Development Corp. (ODV)?

The filing reports Condire-related persons beneficially own 23,879,902 share-equivalents, equal to 9.9% of ODV on the stated basis.

How much did Condire pay for the units acquired on August 15, 2025?

Condire Resource paid $17,994,117 for 8,777,618 units and Condire Alpha paid $1,275,883 for 622,382 units at $2.05 per unit.

What are the economics and expiry of the August Warrants?

August Warrants are exercisable for an aggregate of 4,700,000 shares at an exercise price of $2.56 per share until August 15, 2027.

Does Condire intend to seek control of ODV?

The filing states the securities were acquired for investment purposes and the Reporting Persons have no present plans to pursue actions described in Item 4, though they reserve the right to change intent.

What is the Blocker Agreement and how does it affect ownership?

The Blocker Agreement limits combined Condire holdings to 9.99% of then-outstanding common shares, preventing the Reporting Persons from exceeding that threshold as described in the filing.