Eaton Vance Senior Income Trust (EVF) updates Schedule TO ahead of May 29 tender expiry

Rhea-AI Filing Summary

Eaton Vance Senior Income Trust amended its Schedule TO to report results and to state that it issued a press release on May 26, 2026

The amendment relates to the Fund’s cash issuer tender offer to purchase up to 100% of its outstanding Auction Preferred Shares, Series A and B at 98% of the $25,000 liquidation preference (i.e., $24,500 per share) plus accrued unpaid dividends. The Offer is scheduled to expire on May 29, 2026.

Insights

Corporate Finance Specialist

Issuer amended its Schedule TO and filed a press release about the tender offer expiration.

The filing amends the Schedule TO to add a press release dated May 26, 2026 regarding the Fund's issuer tender offer to purchase up to 100% of Auction Preferred Shares. The stated purchase price is $24,500 per preferred share, equal to 98% of the $25,000 liquidation preference, plus accrued unpaid dividends.

Cash‑flow treatment is the Fund paying holders cash for tendered Preferred Shares; the Offer is set to expire on May 29, 2026. Subsequent filings or the Offer documents will disclose aggregate tender results and any proration mechanics.

Key Figures

Purchase price per share: $24,500 Liquidation preference: $25,000 Maximum tenderable: 100% of outstanding preferred shares +2 more

5 metrics

Purchase price per share $24,500 98% of $25,000 liquidation preference

Liquidation preference $25,000 per Auction Preferred Share

Maximum tenderable 100% of outstanding preferred shares Offer to purchase up to 100% of Auction Preferred Shares, Series A and B

Offer expiration May 29, 2026 expiration date of the Offer as stated in filing

Press release date May 26, 2026 date press release regarding Offer expiration was issued

Key Terms

Auction Preferred Shares, Offer to Purchase, Letter of Transmittal, Schedule TO

4 terms

Auction Preferred Shares financial

"Schedule TO relates to the Fund’s offer to purchase for cash up to 100% of all of its outstanding preferred shares"

Auction preferred shares are a type of preferred stock that pays regular income with the payment rate set periodically through a bidding process rather than fixed forever. Think of it like buying a concert seat where the ticket price (the income rate) is determined by an auction among buyers; the result decides what new investors will receive until the next auction. They matter to investors because they offer potentially higher income tied to market demand but also bring interest-rate, auction, and liquidity risks and sit ahead of common stock for dividend and liquidation priority.

Offer to Purchase regulatory

"terms and subject to the conditions set forth in the Fund’s Offer to Purchase dated April 30, 2026"

An offer to purchase is a formal proposal from one party to buy a specific amount of shares or assets from another party at a set price. It matters to investors because it signals interest in acquiring ownership and can influence the value or control of a company. Think of it as someone putting forward a clear, serious offer to buy something they find valuable.

Letter of Transmittal regulatory

"the related Letter of Transmittal (the “Letter of Transmittal” which, together with any amendments"

A letter of transmittal is a written form investors use when sending physical stock certificates or electronic ownership documents to a company or its agent to surrender shares, tender them in an offer, or claim payment or replacement securities. It acts like a packing slip that lists what is enclosed, gives instructions on how the transfer should be handled, and provides proof of the transaction—important for ensuring investors receive the correct payment or new securities without delay or dispute.

Schedule TO regulatory

"This Amendment No. 1 amends and supplements the Tender Offer Statement on Schedule TO"

A phrase indicating that a company plans or intends to hold an event, publish information, or take an action at a specified future time, but that the timing is not guaranteed and may change. For investors it signals an expected milestone—like an earnings call, product launch, or filing—so think of it as a calendar note rather than a firm promise; timing shifts can affect trading, expectations, and planning.

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

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Accepted by SEC EDGAR 05/26/2026 - 05:13 PM Learn about SEC filing dates

FAQ

What is Eaton Vance Senior Income Trust (EVF) offering to preferred holders?

The Fund is offering cash to purchase up to 100% of its Auction Preferred Shares. The price equals 98% of a $25,000 liquidation preference, or $24,500 per share, plus accrued unpaid dividends.

When does the tender offer for EVF preferred shares expire?

The Offer is scheduled to expire on May 29, 2026. The amendment notes a press release issued on May 26, 2026 regarding the upcoming expiration of the Offer.

How is the purchase price for EVF Auction Preferred Shares calculated?

The price is 98% of the $25,000 liquidation preference, equal to $24,500 per share, plus any unpaid dividends accrued before the Offer's expiration.

Will EVF disclose the tender results and proration?

The amendment reports a press release but not final results. The Fund intends to report tender results; aggregate outcomes and proration mechanics will appear in subsequent filings or notices.

Where can I find the Offer documents for EVF's tender offer?

The Offer to Purchase and the Letter of Transmittal are filed as exhibits to the Schedule TO and are incorporated by reference. The amendment adds a press release as Exhibit (a)(5)(iii).

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 26, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE TO

Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the
Securities Exchange Act of 1934

(Amendment No. 1)

Eaton Vance Senior Income Trust
(Name of Subject Company (Issuer))

Eaton Vance Senior Income Trust
(Name of Filing Person (Issuer))

Auction Preferred Shares Series A and B Par Value $.01 Per Share
(Title of Class of Securities)

Series A - 27826S202
Series B - 27826S301
(CUSIP Number of Class of Securities)

Deidre E. Walsh

Eaton Vance Management

One Post Office Square

Boston, Massachusetts 02109

(617) 672-8305
(Name, Address and Telephone Number of Person Authorized to Receive Notices
and Communications on Behalf of the Person(s) Filing Statement)

☐ Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

☐	third party tender offer subject to Rule 14d-1.
☒	issuer tender offer subject to Rule 13e-4.
☐	going-private transaction subject to Rule 13e-3.
☐	amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer. ☐

Items 1 through 9 and Item 11.

This Amendment No. 1 amends and supplements the Tender Offer Statement on Schedule TO (the “Schedule TO”) filed by Eaton Vance Senior Income Trust, a Massachusetts business trust registered under the Investment Company Act of 1940, as amended, as a closed-end management investment company (the “Fund”). Schedule TO relates to the Fund’s offer to purchase for cash up to 100% of all of its outstanding preferred shares of beneficial interest, par value $0.01 per share and a liquidation preference of $25,000 per share, designated Auction Preferred Shares, Series A and B (the “Preferred Shares”), upon the terms and subject to the conditions set forth in the Fund’s Offer to Purchase dated April 30, 2026 (the “Offer to Purchase”) and the related Letter of Transmittal (the “Letter of Transmittal” which, together with any amendments or supplements thereto, collectively constitute the “Offer”), copies of which were previously filed as Exhibits (a)(1)(i) and (a)(1)(ii), respectively.

The price to be paid for the Preferred Shares is an amount per share, net to the seller in cash, equal to 98% of the liquidation preference of $25,000 per share (or $24,500 per share), plus any unpaid dividends accrued prior to the expiration date of the Offer, less any applicable withholding taxes and without interest. The information set forth in the Offer is incorporated herein by reference with respect to Items 1 through 9 and Item 11 of this Schedule TO.

The purpose of this Amendment No. 1 is to amend and supplement the Schedule TO to indicate that, on May 26, 2026, the Fund issued a press release regarding the upcoming expiration of the Offer on May 29, 2026, as previously disclosed. Only those items amended are reported in this Amendment No. 1. The information set forth in Schedule TO is incorporated herein by reference, except that such information is hereby amended and supplemented to the extent amended and supplemented by the information provided herein and the exhibit filed herewith.

You should read this Amendment No. 1 together with Schedule TO, and all exhibits attached thereto, including the Offer to Purchase and the Letter of Transmittal, as each may have been amended or supplemented from time to time.

Item 11.

Item 11 is hereby amended and supplemented by adding at the end thereof the following text:

“On May 26, 2026, the Fund issued a press release regarding the upcoming expiration of the Offer. A copy of the press release is filed as Exhibit (a)(5)(iii) to this Schedule TO and is incorporated herein by reference.”

Item 12. Exhibits.

Item 12 of Schedule TO is hereby amended and supplemented to add the following exhibit:

(a)(5)(iii) Press Release issued on May 26, 2026.

Item 13. Information Required by Schedule 13e-3.

Not applicable.

Signature

After due 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.

	Eaton Vance Senior Income Trust
	By:	/s/ Kenneth A. Topping
	Name:	Kenneth A. Topping
	Title:	President
		Dated as of May 26, 2026

Exhibit Index

Exhibit No.	Document
(a)(5)(iii)	Press Release issued on May 26, 2026.