Sirenia Capital (HELP) reports 3.03M-share Cybin stake including warrant shares

Rhea-AI Filing Summary

Sirenia Capital Management LP and Alex Silverstein report beneficial ownership of Cybin Inc. Common Shares. They collectively report 3,029,500 Common Shares beneficially owned, including 969,500 shares issuable upon exercise of warrants, representing 4.8% of Cybin’s Common Shares outstanding.

Their stake is based on 61,984,078 Common Shares outstanding as of June 29, 2026. All reported shares are held through investment funds managed by Sirenia, with shared voting and dispositive power and no sole voting or dispositive power for either reporting person.

Key Figures

Beneficially owned shares: 3,029,500 Common Shares Warrant shares: 969,500 Common Shares Ownership percentage: 4.8% +3 more

6 metrics

Beneficially owned shares 3,029,500 Common Shares Reported by Sirenia Capital Management LP and Alex Silverstein as beneficially owned

Warrant shares 969,500 Common Shares Common Shares issuable upon exercise of warrants held by Sirenia-managed funds

Ownership percentage 4.8% Percentage of Cybin Common Shares beneficially owned by the reporting persons

Shares outstanding 61,984,078 Common Shares Cybin Common Shares outstanding as of June 29, 2026

Shared voting power 3,029,500 Common Shares Shares over which the reporting persons have shared voting power

Shared dispositive power 3,029,500 Common Shares Shares over which the reporting persons have shared dispositive power

Key Terms

beneficial owner, shared voting power, shared dispositive power, Schedule 13G

4 terms

beneficial owner regulatory

"the beneficial owner of the securities 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 3,029,500.00"

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 3,029,500.00"

Schedule 13G regulatory

"filed this schedule, pursuant to (ii)(G), so indicate"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

FAQ

What ownership stake in Cybin Inc. (HELP) does Sirenia Capital report?

Sirenia Capital Management and Alex Silverstein report beneficial ownership of 3,029,500 Cybin Common Shares, including shares underlying warrants. This represents 4.8% of Cybin’s Common Shares outstanding, based on 61,984,078 shares outstanding as of June 29, 2026.

How much of Sirenia’s Cybin (HELP) position comes from warrants?

The reporting persons state that 969,500 Cybin Common Shares are issuable upon exercise of warrants held by funds managed by Sirenia. These warrant shares are included within the total 3,029,500 beneficially owned Common Shares they report.

What percentage of Cybin Inc. (HELP) is owned according to this Schedule 13G/A?

The Schedule 13G/A reports that Sirenia Capital Management and Alex Silverstein beneficially own 4.8% of Cybin’s Common Shares. This percentage is calculated using 61,984,078 shares outstanding as of June 29, 2026, and assumes exercise of the reported warrants.

Do Sirenia Capital and Alex Silverstein have sole or shared voting power over Cybin (HELP) shares?

The filing shows 0 shares with sole voting power and 3,029,500 shares with shared voting power. They likewise report 0 shares with sole dispositive power and 3,029,500 shares with shared dispositive power through the Sirenia-managed funds.

Why does the Cybin (HELP) filing mention ownership of 5 percent or less?

Under Item 5, the reporting persons indicate ownership of 5 percent or less of Cybin’s Common Shares. Their current reported beneficial stake is 4.8%, reflecting their holdings plus warrant shares relative to the stated outstanding share count.

Who are the reporting persons in the Cybin Inc. (HELP) Schedule 13G/A?

The Schedule 13G/A is filed by Sirenia Capital Management LP and Alex Silverstein. Sirenia manages the investment funds holding Cybin securities, and Mr. Silverstein is the managing member of Sirenia’s general partner, reporting indirect beneficial ownership of the same shares.

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Available on EDGAR 08/14/2026 - 08:32 AM Accepted by SEC EDGAR 08/14/2026 - 08:31 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

CYBIN INC.

(Name of Issuer)

Common Shares, no par value

(Title of Class of Securities)

23256X407

(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): 23256X407

1

Names of Reporting Persons

Sirenia Capital 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 3,029,500.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,029,500.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,029,500.00

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)

4.8 %

12

Type of Reporting Person (See Instructions)

IA, PN

Comment for Type of Reporting Person: Includes 969,500 Common Shares (as defined in Item 2(a)) issuable upon exercise of warrants.

SCHEDULE 13G

CUSIP Number(s): 23256X407

1

Names of Reporting Persons

Alex Silverstein

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 3,029,500.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,029,500.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,029,500.00

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)

4.8 %

12

Type of Reporting Person (See Instructions)

HC, IN

Comment for Type of Reporting Person: Includes 969,500 Common Shares issuable upon exercise of warrants.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: CYBIN INC.
(b)	Address of issuer's principal executive offices: 100 King Street West, Suite 5600, Toronto, Ontario, Canada M5X 1C9
Item 2.
(a)	Name of person filing: This statement is filed by: (i) Sirenia Capital Management LP ("Sirenia") with respect to the common shares, no par value ("Common Shares"), of Cybin Inc. (the "Issuer") held by, and issuable upon exercise of warrants held by, investment funds it manages (the "Sirenia Funds"); and (ii) Alex Silverstein ("Mr. Silverstein"), the managing member of Sirenia Capital Management GP LLC, the general partner of Sirenia, with respect to the Common Shares held by, and issuable upon exercise of warrants held by, the Sirenia 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 Securities Exchange Act of 1934, the beneficial owner of the securities reported herein.
(b)	Address or principal business office or, if none, residence: The address of the principal business office of Sirenia and Mr. Silverstein is 1674 Meridian Avenue, Suite 320, Miami Beach, FL 33139.
(c)	Citizenship: Sirenia is a Delaware limited partnership. Mr. Silverstein is a United States citizen.
(d)	Title of class of securities: Common Shares, no par value
(e)	CUSIP No.: 23256X407
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: The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The percentage set forth in this Schedule 13G is calculated based upon an aggregate of 61,984,078 Common Shares outstanding as of June 29, 2026, as reported in Exhibit 99.3 attached to the Issuer's Annual Report on Form 40-F for the fiscal year ended March 31, 2026, filed with the Securities and Exchange Commission on June 29, 2026, and assumes the exercise of the warrants held by the Sirenia Funds.
(b)	Percent of class: 4.8%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	(ii) Shared power to vote or to direct the vote: The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	(iii) Sole power to dispose or to direct the disposition of: The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	(iv) Shared power to dispose or to direct the disposition of: The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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(a).
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Item 2(a) and Item 3.
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.

Sirenia Capital Management LP

Signature:	/s/ Kolby Loft
Name/Title:	Kolby Loft, General Counsel & Chief Compliance Officer
Date:	08/14/2026

Alex Silverstein

Signature:	/s/ Alex Silverstein
Name/Title:	Alex Silverstein, individually
Date:	08/14/2026