John Hancock Income Securities Trust (JHS): 1607 Capital, Dominion unit detail holdings

Rhea-AI Filing Summary

1607 Capital Partners, LLC and the Asset Management Committee of Dominion Energy, Inc. report their beneficial ownership of shares of John Hancock Income Securities Trust. As of June 30, 2026, 1607 Capital Partners, LLC beneficially owned 791,168 shares, representing 6.79% of the closed-end fund’s outstanding shares, with sole voting and sole dispositive power over this amount under its investment management agreements.

The Asset Management Committee of Dominion Energy, Inc., a client of 1607, is deemed the beneficial owner of 470,313 shares, or 4.04% of the class, solely because it may terminate its investment management agreement with 1607 on less than sixty days’ written notice. Dominion has no authority under that agreement to vote or dispose of these shares, while 1607 currently holds all voting and dispositive authority. The filing includes a joint filing agreement under Rule 13d-1(k) and a disclaimer by Dominion that it disclaims beneficial ownership except to the extent of its pecuniary interest.

Key Figures

1607 shares beneficially owned: 791,168 shares 1607 percent of class: 6.79% Dominion committee shares deemed owned: 470,313 shares +3 more

6 metrics

1607 shares beneficially owned 791,168 shares Shares of John Hancock Income Securities Trust beneficially owned by 1607 Capital Partners, LLC

1607 percent of class 6.79% Percentage of JHS shares beneficially owned by 1607 Capital Partners, LLC

Dominion committee shares deemed owned 470,313 shares Shares of JHS deemed beneficially owned by Dominion’s Asset Management Committee

Dominion committee percent of class 4.04% Percentage of JHS shares deemed beneficially owned by Dominion’s Asset Management Committee

Termination notice period less than sixty days Dominion may terminate its investment management agreement with 1607 on less than sixty days’ written notice

Sole voting power (1607) 791,168 shares Number of JHS shares over which 1607 has sole power to vote

Key Terms

beneficial owner, sole dispositive power, Investment Management Agreement, Schedule 13G, +2 more

6 terms

beneficial owner financial

"1607 Capital Partners, LLC (1607), an investment adviser, is the beneficial owner"

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.

sole dispositive power financial

"1607 has sole current authority, and Dominion has no current authority, to vote and dispose"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Investment Management Agreement financial

"under all its client investment management agreements (IMAs)"

An investment management agreement is a written contract that hires a professional to make buying, selling and strategy decisions for an investment account or fund, and sets out their duties, fees, risk limits, performance measures and reporting requirements. It matters to investors because the agreement determines who controls the money, how much the service costs, what risks are allowed, and how success or failure is measured—think of it as the service contract that defines expectations and remedies for a hired portfolio manager.

Schedule 13G regulatory

"JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on"

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.

Rule 13d-1(k) regulatory

"JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)"

pecuniary interest financial

"disclaims beneficial ownership in the securities reported herein, except to the extent of its pecuniary interest therein"

FAQ

What ownership stake in JHS does 1607 Capital Partners, LLC report?

1607 Capital Partners, LLC reports beneficial ownership of 791,168 John Hancock Income Securities Trust (JHS) shares, representing 6.79% of the fund’s outstanding shares, with sole voting and sole dispositive power under its client investment management agreements.

How many JHS shares does Dominion Energy’s Asset Management Committee beneficially own?

The Asset Management Committee of Dominion Energy, Inc. is deemed to beneficially own 470,313 JHS shares, equal to 4.04% of the class. This status arises from its right to terminate its investment management agreement with 1607 on less than sixty days’ written notice.

Who has voting and dispositive power over the JHS shares in this Schedule 13G/A?

1607 Capital Partners, LLC has sole power to vote and dispose of 791,168 JHS shares. Dominion’s Asset Management Committee has no current authority to vote or dispose of the 470,313 shares for which it is deemed a beneficial owner.

Why is Dominion Energy’s committee considered a beneficial owner of JHS shares?

Dominion’s Asset Management Committee is deemed a beneficial owner of 470,313 JHS shares solely because it can terminate its investment management agreement with 1607 without cause on less than sixty days’ notice, not because it can vote or sell the shares.

Do clients of 1607 Capital Partners receive dividends from the JHS shares?

For the shares listed for 1607, its clients have the right to receive or direct the receipt of dividends and sale proceeds. For the shares listed for Dominion, only Dominion has the right to receive dividends or sale proceeds from those JHS shares.

What is the purpose of the joint filing agreement mentioned in the JHS Schedule 13G/A?

The joint filing agreement under Rule 13d-1(k) states that 1607 Capital Partners, LLC and Dominion’s Asset Management Committee file this and future amendments jointly, while each is responsible only for the accuracy of its own information, absent knowledge of inaccuracies in the other’s data.

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

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Available on EDGAR 08/14/2026 - 02:17 PM Accepted by SEC EDGAR 08/14/2026 - 02:17 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. 10)

John Hancock Income Securities Trust

(Name of Issuer)

Closed End Mutual Fund

(Title of Class of Securities)

410123103

(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): 410123103

1

Names of Reporting Persons

1607 Capital Partners, LLC

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 791,168.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 791,168.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

791,168.00

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)

6.79 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 410123103

1

Names of Reporting Persons

Asset Management Committee of Dominion Energy, 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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

470,313.00

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)

4.04 %

12

Type of Reporting Person (See Instructions)

EP

SCHEDULE 13G

Item 1.
(a)	Name of issuer: John Hancock Income Securities Trust
(b)	Address of issuer's principal executive offices: 200 Berkeley Street, Boston, MA 02116
Item 2.
(a)	Name of person filing: 1607 Capital Partners, LLC Asset Management Committee of Dominion Energy, Inc.
(b)	Address or principal business office or, if none, residence: 13 S. 13th Street, Suite 400, Richmond, Virginia 23219 120 Tredegar St. R4, Richmond, VA 23219
(c)	Citizenship: Please refer to Item 4 on each cover sheet for each filing person
(d)	Title of class of securities: Closed End Mutual Fund
(e)	CUSIP No.: 410123103
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: 1607 Capital Partners, LLC (1607), an investment adviser, is the beneficial owner of the shares shown based on having sole voting power and sole power to dispose of these shares under all its client investment management agreements (IMAs). The Asset Management Committee of Dominion Energy, Inc. (Dominion) is a client of 1607 Capital Partners, LLC and is the beneficial owner of the shares shown solely due to being able to terminate its IMA with 1607 without cause or condition on less than sixty days written notice. Dominion has no authority under its IMA to either vote or dispose of the shares shown. The calculations in 4(c)(i) and (iii) reflect that under the Dominion IMA, 1607 has sole current authority, and Dominion has no current authority, to vote and dispose of the shares for which Dominion is deemed to have beneficial ownership due to its less than 60 day termination right. 1607 Capital Partners, LLC - 791,168 Asset Management Committee of Dominion Energy, Inc. - 470,313
(b)	Percent of class: 1607 Capital Partners, LLC - 6.79% Asset Management Committee of Dominion Energy, Inc. - 4.04%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1607 Capital Partners, LLC - 791,168 Asset Management Committee of Dominion Energy, Inc. - 0
	(ii) Shared power to vote or to direct the vote: 1607 Capital Partners, LLC - 0 Asset Management Committee of Dominion Energy, Inc. - 0
	(iii) Sole power to dispose or to direct the disposition of: 1607 Capital Partners, LLC - 791,168 Asset Management Committee of Dominion Energy, Inc. - 0
	(iv) Shared power to dispose or to direct the disposition of: 1607 Capital Partners, LLC - 0 Asset Management Committee of Dominion Energy, Inc. - 0
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. With respect to the shares listed for 1607, the 1607 clients who hold such shares in their investment advisory accounts managed by 1607 have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of those shares. With respect to the shares listed for Dominion, no person other than Dominion has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of those 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.

1607 Capital Partners, LLC

Signature:	Kevin Rutherford
Name/Title:	Kevin Rutherford | Chief Compliance Officer
Date:	08/14/2026

Asset Management Committee of Dominion Energy, Inc.

Signature:	Nicholas Everett
Name/Title:	Nicholas Everett | Director of Investments
Date:	08/14/2026

Exhibit Information

JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that allsubsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additionaljoint acquisition statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completenessand accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the informationconcerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate. This agreement may be executed in multiple counterparts, each of which shall constitute an original, one and the same instrument. Date: August 14, 2026 1607 Capital Partners, LLC By: /s/ Kevin Rutherford Name: Kevin Rutherford Title: Chief Compliance Officer Asset Management Committee of Dominion Energy, Inc. *This Reporting Person disclaims beneficial ownership in the securities reported herein, except to the extent of its pecuniary interest therein. By: /s/ Nicholas Everett Name: Nicholas Everett Title: Director of Investments