1607 Capital reports 3.52% stake in Eaton Vance Senior

1607 Capital Partners, LLC and the Asset Management Committee of Dominion Energy, Inc. jointly report beneficial ownership of 640,377 common shares of beneficial interest of Eaton Vance Senior Income Trust, representing 3.52% of the class as of June 30, 2026.

Rhea-AI Filing Summary

1607 Capital Partners, LLC and the Asset Management Committee of Dominion Energy, Inc. jointly report beneficial ownership of 640,377 common shares of beneficial interest of Eaton Vance Senior Income Trust, representing 3.52% of the class as of June 30, 2026.

1607 Capital Partners, as investment adviser, has sole voting and sole dispositive power over these 640,377 shares under its client investment management agreements. Dominion’s Asset Management Committee is deemed a beneficial owner of the same 640,377 shares solely because it can terminate its investment management agreement with 1607 on less than sixty days’ written notice, but it has no authority to vote or dispose of the shares and disclaims beneficial ownership except to the extent of its pecuniary interest.

Key Figures

Shares beneficially owned: 640,377 shares Ownership percentage: 3.52% Par value per share: $0.01 per share +2 more

5 metrics

Shares beneficially owned 640,377 shares Beneficial ownership reported by 1607 Capital Partners, LLC as of June 30, 2026

Ownership percentage 3.52% Percent of Eaton Vance Senior Income Trust common shares for each reporting person

Par value per share $0.01 per share Common Shares of Beneficial Interest of Eaton Vance Senior Income Trust

Termination notice period less than sixty days Time within which Dominion may terminate its investment management agreement with 1607

CUSIP 27826S103 CUSIP number for Eaton Vance Senior Income Trust common shares

Key Terms

beneficial owner, investment management agreements, sole voting power, dispositive power, +1 more

5 terms

beneficial owner financial

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

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.

investment management agreements financial

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

sole voting power financial

"based on having sole voting power and sole power to dispose of these shares"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

dispositive power financial

"sole power to dispose of these shares under all its client investment management agreements"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

pecuniary interest financial

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

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake in Eaton Vance Senior Income Trust (EVF) does 1607 Capital Partners report?

1607 Capital Partners reports beneficial ownership of 640,377 common shares of Eaton Vance Senior Income Trust, representing 3.52% of the outstanding class as of June 30, 2026, with sole voting and dispositive power over these shares.

How is Dominion Energy’s Asset Management Committee involved with EVF shares?

Dominion’s Asset Management Committee is deemed to beneficially own 640,377 EVF shares, or 3.52% of the class, solely because it can terminate its investment management agreement with 1607 on less than sixty days’ notice, while holding no voting or dispositive authority.

Who has voting power over the 640,377 EVF shares reported in this Schedule 13G/A?

Only 1607 Capital Partners has voting power, with sole power to vote and sole power to dispose of all 640,377 EVF shares. Dominion’s Asset Management Committee has no voting or dispositive power over these shares under its agreement.

Is the reported EVF ownership by 1607 Capital and Dominion above 5% of the class?

No. Both 1607 Capital Partners and Dominion’s Asset Management Committee report beneficial ownership of 3.52% of Eaton Vance Senior Income Trust’s common shares, which is 5 percent or less of the outstanding class of securities.

Why does Dominion Energy’s Asset Management Committee disclaim beneficial ownership of EVF?

Dominion’s Asset Management Committee disclaims beneficial ownership of the EVF securities, except for its pecuniary interest, because 1607 Capital holds all voting and dispositive power; Dominion is deemed a beneficial owner only through its termination right under the investment management agreement.

What type of security in EVF is covered and what is its par value?

The filing covers Eaton Vance Senior Income Trust Common Shares of Beneficial Interest with a par value of $0.01 per share, identified by CUSIP number 27826S103 in the ownership disclosure.

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

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Available on EDGAR 08/14/2026 - 02:14 PM Accepted by SEC EDGAR 08/14/2026 - 02:13 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. 1)

Eaton Vance Senior Income Trust

(Name of Issuer)

Common Shares of Beneficial Interest, $0.01 par value

(Title of Class of Securities)

27826S103

(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): 27826S103

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 640,377.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 640,377.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

640,377.00

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)

3.52 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 27826S103

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

640,377.00

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)

3.52 %

12

Type of Reporting Person (See Instructions)

EP

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Eaton Vance Senior Income Trust
(b)	Address of issuer's principal executive offices: One Post Office Square, Boston, MA, 02109
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, VA, 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: Common Shares of Beneficial Interest, $0.01 par value
(e)	CUSIP No.: 27826S103
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 - 640,377 Asset Management Committee of Dominion Energy, Inc. - 640,377
(b)	Percent of class: 1607 Capital Partners, LLC - 3.52% Asset Management Committee of Dominion Energy, Inc. - 3.52%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1607 Capital Partners, LLC - 640,377 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 - 640,377 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.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
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