Akari Therapeutics (AKTX) sees Bank of Montreal group report 5.71% ownership

Rhea-AI Filing Summary

Akari Therapeutics Plc has a significant shareholder group led by Bank of Montreal, Bank of Montreal Holding Inc., and BMO Nesbitt Burns Inc., which report beneficial ownership of 8,000,000,000 Ordinary Shares of Akari Therapeutics.

This holding represents 5.71% of the outstanding class of Ordinary Shares as of June 30, 2026. The reporting persons have shared voting power and shared dispositive power over 8,000,000,000 shares, with no sole voting or dispositive power. The position is held in the ordinary course of business while the reporting person acts as prime broker on behalf of certain clients, who may direct dividends and sale proceeds. The reporting entities state that the filing should not be construed as an admission that they are acting as a group for Section 13(d) or 13(g) purposes.

Key Figures

Beneficial ownership: 8,000,000,000 Ordinary Shares Percent of class: 5.71% Shared voting power: 8,000,000,000 shares +3 more

6 metrics

Beneficial ownership 8,000,000,000 Ordinary Shares Shares of Akari Therapeutics beneficially owned by reporting persons as of June 30, 2026

Percent of class 5.71% Portion of Akari Therapeutics Ordinary Shares represented by the reported beneficial ownership

Shared voting power 8,000,000,000 shares Number of Akari Therapeutics shares over which each reporting person has shared voting power

Sole voting power 0 shares Number of Akari Therapeutics shares over which each reporting person has sole voting power

Shared dispositive power 8,000,000,000 shares Number of Akari Therapeutics shares over which each reporting person has shared dispositive power

CUSIP 00972G405 CUSIP for Akari Therapeutics Ordinary Shares covered by the reported ownership

Key Terms

beneficially owned, shared voting power, shared dispositive power, prime broker, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 8,000,000,000"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"6 | Shared Voting Power 8,000,000,000.00"

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 financial

"8 | Shared Dispositive Power 8,000,000,000.00"

prime broker financial

"acting as prime broker on behalf of certain clients who have the power"

A prime broker is a financial firm that provides trading, custody, financing, clearing and operational support to large professional investors such as hedge funds, acting like a one-stop back office and lending desk. For investors, a prime broker matters because it supplies access to leverage, trade execution, securities lending and consolidated reporting—services that reduce paperwork, lower costs and expand market access but also concentrate counterparty risk if the broker runs into trouble.

Section 13(d) or 13(g) regulatory

"for the purposes of Section 13(d) or 13(g) of the Act"

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

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Available on EDGAR 08/12/2026 - 11:03 AM Accepted by SEC EDGAR 08/12/2026 - 11:03 AM Learn about SEC filing dates

FAQ

What ownership stake in Akari Therapeutics (AKTX) is reported in this Schedule 13G?

The reporting persons disclose beneficial ownership of 8,000,000,000 Ordinary Shares of Akari Therapeutics, representing 5.71% of the outstanding class as of June 30, 2026.

Who are the reporting persons in the Akari Therapeutics (AKTX) beneficial ownership filing?

The filing lists Bank of Montreal, Bank of Montreal Holding Inc., and BMO Nesbitt Burns Inc., all organized under Canada (federal level), as the reporting persons for this 5.71% ownership stake.

How much voting and dispositive power do the reporting persons have over AKTX shares?

Each reporting person reports 0 shares with sole voting or dispositive power and 8,000,000,000 shares with shared voting and shared dispositive power in Akari Therapeutics Ordinary Shares.

Are the 8,000,000,000 AKTX shares held by Bank of Montreal proprietary or for clients?

The securities are held in the ordinary course of business with the reporting person acting as prime broker on behalf of certain clients, who may direct dividends and proceeds from any sale.

Does the Akari Therapeutics (AKTX) Schedule 13G state that the reporting persons form a group?

The reporting persons acknowledge they may be deemed to be a group under Section 13(d) or 13(g), but explicitly state that nothing in the filing is an admission that they are acting as a partnership, syndicate, or group.

What class of Akari Therapeutics (AKTX) securities is covered and what is the CUSIP?

The filing covers Ordinary Shares of Akari Therapeutics with CUSIP 00972G405, and reports a 5.71% beneficial ownership position by the listed Canadian entities.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Akari Therapeutics Plc

(Name of Issuer)

Ordinary Shares

(Title of Class of Securities)

00972G405

(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): 00972G405

1

Names of Reporting Persons

Bank of Montreal

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

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,000,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,000,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,000,000,000.00

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)

5.71 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 00972G405

1

Names of Reporting Persons

BANK OF MONTREAL HOLDING INC.

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

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,000,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,000,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,000,000,000.00

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)

5.71 %

12

Type of Reporting Person (See Instructions)

BK

SCHEDULE 13G

CUSIP Number(s): 00972G405

1

Names of Reporting Persons

BMO NESBITT BURNS INC.

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

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,000,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,000,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,000,000,000.00

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)

5.71 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Akari Therapeutics Plc
(b)	Address of issuer's principal executive offices: 401 EAST JACKSON STREET, SUITE 3300, TAMPA, FLORIDA 33602
Item 2.
(a)	Name of person filing: Bank of Montreal BANK OF MONTREAL HOLDING INC. BMO NESBITT BURNS INC.
(b)	Address or principal business office or, if none, residence: 1 First Canadian Place Toronto, Ontario, Canada M5X1A1
(c)	Citizenship: Bank of Montreal - CANADA (FEDERAL LEVEL) BANK OF MONTREAL HOLDING INC. - CANADA (FEDERAL LEVEL) BMO NESBITT BURNS INC. - CANADA (FEDERAL LEVEL)
(d)	Title of class of securities: Ordinary Shares
(e)	CUSIP Number(s): 00972G405
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: 8,000,000,000
(b)	Percent of class: 5.71 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Bank of Montreal - 0 BANK OF MONTREAL HOLDING INC. - 0 BMO NESBITT BURNS INC. - 0
	(ii) Shared power to vote or to direct the vote: Bank of Montreal - 8,000,000,000 BANK OF MONTREAL HOLDING INC. - 8,000,000,000 BMO NESBITT BURNS INC. - 8,000,000,000
	(iii) Sole power to dispose or to direct the disposition of: Bank of Montreal - 0 BANK OF MONTREAL HOLDING INC. - 0 BMO NESBITT BURNS INC. - 0
	(iv) Shared power to dispose or to direct the disposition of: Bank of Montreal - 8,000,000,000 BANK OF MONTREAL HOLDING INC. - 8,000,000,000 BMO NESBITT BURNS INC. - 8,000,000,000
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. The securities reported herein are held in the ordinary course of business of the Reporting Person acting as prime broker on behalf of certain clients who have the power to direct the receipt of dividends from, or the proceeds from the sale of such securities.
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 Documents.
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. Each reporting person may be deemed to be a member of a group with respect to the issuer or securities of the issuer for the purposes of Section 13(d) or 13(g) of the Act. Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section13(d) or 13(g) of the Act or any other purpose, (i) acting (or has agreed or is agreeing to act) with any other person as a partnership, limited partnership, syndicate, or other group for the purpose of acquiring, holding, or disposing of securities of the issuer or otherwise with respect to the issuer or any securities of the issuer or (ii) a member of any syndicate or group with respect to the issuer or any securities of the issuer.
Item 9.	Notice of Dissolution of Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5. Each reporting person may be deemed to be a member of a group with respect to the issuer or securities of the issuer for the purposes of Section 13(d) or 13(g) of the Act. Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section13(d) or 13(g) of the Act or any other purpose, (i) acting (or has agreed or is agreeing to act) with any other person as a partnership, limited partnership, syndicate, or other group for the purpose of acquiring, holding, or disposing of securities of the issuer or otherwise with respect to the issuer or any securities of the issuer or (ii) a member of any syndicate or group with respect to the issuer or any securities of the issuer.

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.

Bank of Montreal

Signature:	Kathryn Cenac
Name/Title:	Managing Director - Regulatory Solutions Group
Date:	08/12/2026

BANK OF MONTREAL HOLDING INC.

Signature:	Kathryn Cenac
Name/Title:	Managing Director - Regulatory Solutions Group
Date:	08/12/2026

BMO NESBITT BURNS INC.

Signature:	Kathryn Cenac
Name/Title:	Managing Director - Regulatory Solutions Group
Date:	08/12/2026