Bright Minds Biosciences (DRUG): Cormorant Asset Management reports 9.17% ownership stake

Rhea-AI Filing Summary

Cormorant Asset Management, LP and Bihua Chen report a significant ownership stake in Bright Minds Biosciences Inc. They report beneficial ownership of 900,000 Common Shares, representing 9.17% of the class, based on 9,812,061 Common Shares outstanding as of May 15, 2026.

The shares are held by certain Cormorant funds, with the Reporting Persons having shared voting power over 900,000 shares and shared dispositive power over 900,000 shares, and no sole voting or dispositive power. Cormorant Global Healthcare Master Fund, LP has the right to receive dividends or sale proceeds from more than 5% of the shares.

Key Figures

Shares beneficially owned: 900,000 shares Percent of class: 9.17% Shares outstanding: 9,812,061 shares +4 more

7 metrics

Shares beneficially owned 900,000 shares Common Shares of Bright Minds Biosciences beneficially owned by the Reporting Persons

Percent of class 9.17% Ownership percentage of Bright Minds Biosciences Common Shares

Shares outstanding 9,812,061 shares Common Shares outstanding as of May 15, 2026 used for the ownership calculation

Shared voting power 900,000 shares Shares over which the Reporting Persons have shared power to vote or direct the vote

Shared dispositive power 900,000 shares Shares over which the Reporting Persons have shared power to dispose or direct disposition

Sole voting power 0 shares Shares over which the Reporting Persons have sole power to vote

Sole dispositive power 0 shares Shares over which the Reporting Persons have sole power to dispose

Key Terms

beneficial owner, shared voting power, shared dispositive power, percent of class, +2 more

6 terms

beneficial owner regulatory

"the beneficial owner of the shares reported herein"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

shared voting power regulatory

"Shared Voting Power 900,000.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power regulatory

"Shared Dispositive Power 900,000.00"

percent of class financial

"Percent of class: 9.17%"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

Report of Foreign Private Issuer regulatory

"attached as Exhibit 99.2 to the Report of Foreign Private Issuer on Form 6-K"

A report of a foreign private issuer is a formal filing that a non‑U.S. company makes to U.S. regulators to share important business, financial, or governance information with American investors. Think of it as a regular update or press packet that keeps investors informed about events that could change a company’s value—like earnings, management changes, contracts, or regulatory developments—so investors can make timely, informed decisions.

investment adviser financial

"the investment adviser to certain funds (the "Cormorant Funds")"

An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.

FAQ

What percentage of Bright Minds Biosciences (DRUG) does Cormorant Asset Management report owning?

Cormorant Asset Management and Bihua Chen report beneficial ownership of 9.17% of Bright Minds Biosciences’ Common Shares, representing 900,000 shares out of 9,812,061 shares outstanding as of May 15, 2026.

How many Bright Minds Biosciences (DRUG) shares are beneficially owned by the Reporting Persons?

The Reporting Persons state they beneficially own 900,000 Common Shares of Bright Minds Biosciences. This stake is calculated as 9.17% of the class, using 9,812,061 shares outstanding as of May 15, 2026 as the reference.

What voting and dispositive power does Cormorant have over Bright Minds Biosciences (DRUG) shares?

The Reporting Persons report 0 shares with sole voting or dispositive power and 900,000 shares with shared voting power and shared dispositive power. This means decisions are made jointly regarding voting and potential sale of these shares.

Which entity within Cormorant holds more than 5% of Bright Minds Biosciences (DRUG)?

Cormorant Global Healthcare Master Fund, LP, a Cormorant Fund, is identified as having the right to receive or direct dividends or sale proceeds from more than 5% of Bright Minds Biosciences’ Common Shares reported in this statement.

Who are the Reporting Persons in the Bright Minds Biosciences (DRUG) ownership filing?

The filing identifies Cormorant Asset Management, LP, a Delaware limited partnership and investment adviser to certain funds, and Bihua Chen as the Reporting Persons with respect to the 900,000 Common Shares held by the Cormorant Funds.

On what share count is the 9.17% Bright Minds Biosciences (DRUG) ownership calculation based?

The 9.17% ownership is based on a reported total of 9,812,061 Common Shares outstanding as of May 15, 2026, as stated in Bright Minds Biosciences’ Management Discussion and Analysis referenced in a Form 6-K.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/14/2026 - 02:02 PM Accepted by SEC EDGAR 08/14/2026 - 02:02 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

Bright Minds Biosciences Inc.

(Name of Issuer)

Common Shares

(Title of Class of Securities)

10919W405

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 10919W405

1

Names of Reporting Persons

Cormorant Asset Management, LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 900,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 900,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

900,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.17 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP Number(s): 10919W405

1

Names of Reporting Persons

Bihua Chen

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 900,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 900,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

900,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.17 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Bright Minds Biosciences Inc.
(b)	Address of issuer's principal executive offices: 400 N Aberdeen Street, Suite 900, Chicago, IL 60642
Item 2.
(a)	Name of person filing: Cormorant Asset Management, LP Bihua Chen This statement is filed by (i) Cormorant Asset Management, LP, a Delaware limited partnership, and the investment adviser to certain funds (the "Cormorant Funds"), with respect to the shares directly held by the Cormorant Funds and (ii) Bihua Chen with respect to the shares directly held by the Cormorant Funds. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons." The filing of this statement should not be construed as an admission that any of the foregoing persons or any Reporting Person is, for the purposes of Section 13 of the Act, the beneficial owner of the shares reported herein.
(b)	Address or principal business office or, if none, residence: 200 Clarendon Street, 50th Floor Boston, MA 02116
(c)	Citizenship: Cormorant Asset Management, LP - Delaware Bihua Chen - United States
(d)	Title of class of securities: Common Shares
(e)	CUSIP No.: 10919W405
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 900,000
(b)	Percent of class: 9.17%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 900,000
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 900,000 The percentages reported herein with respect to the Reporting Persons' holdings are calculated based upon a statement in the Issuer's Management Discussion and Analysis attached as Exhibit 99.2 to the Report of Foreign Private Issuer on Form 6-K filed with the Securities and Exchange Commission on May 20, 2026 that there were 9,812,061 Common Shares outstanding as of May 15, 2026.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person 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, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. See Item 2. The Cormorant Funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares reported herein. Cormorant Global Healthcare Master Fund, LP, a Cormorant Fund, has the right to receive or the power to direct the receipt of dividends or the proceeds from the sale of more than 5% of the shares.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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.

Cormorant Asset Management, LP

Signature:	/s/ Bihua Chen
Name/Title:	Bihua Chen, Managing Member
Date:	08/14/2026

Bihua Chen

Signature:	/s/ Bihua Chen
Name/Title:	Bihua Chen
Date:	08/14/2026

Exhibit Information

Joint Filing Statement, incorporated by reference to the Joint Filing Statement included with the Schedule 13G filed by the Reporting Persons on October 22, 2024.