Company: KROS
Filing Date: 2025-10-20
Form Type: SC TO-I
Source: 0001104659-25-100554
Chunk: 2

Company: Keros Therapeutics, Inc.
Filing Date: 2025-10-20
Form: SC TO-I
Chunk 2
---
 Company’s business address and telephone number are set forth in Item 2(a) above. The names and business addresses of the directors and executive officers of the Company are as set forth in the Offer to Purchase under Section 11 (“Interests of Directors and Executive Officers; Transactions and Arrangements Concerning the Shares”), and such information is incorporated herein by reference.

## ITEM 4.

#### TERMS OF THE TRANSACTION.
(a)

The following sections of the Offer to Purchase contain a description of the material terms of the transaction and are incorporated herein by reference:

•

“Summary Term Sheet”;

•

“Introduction”;

•

Section 1 (“Number of Shares; Proration”);

•

Section 2 (“Purpose of the Tender Offer; Certain Effects of the Tender Offer; Other Plans”);

•

Section 3 (“Procedures for Tendering Shares”);

•

Section 4 (“Withdrawal Rights”);

•

Section 5 (“Purchase of Shares and Payment of Purchase Price”);

<div align='center'>1</div>

•

Section 6 (“Conditional Tender of Shares”);

•

Section 7 (“Conditions of the Tender Offer”);

•

Section 11 (“Interests of Directors and Executive Officers; Transactions and Arrangements Concerning the Shares”);

•

Section 14 (“Material U.S. Federal Income Tax Consequences”);

•

Section 15 (“Extension of the Tender Offer; Termination; Amendment”); and

•

Section 16 (“Fees and Expenses”).

(b)

The information regarding purchases from officers, directors and affiliates of the Company set forth in the “Introduction” to the Offer to Purchase and in Section 11 of the Offer to Purchase (“Interests of Directors and Executive Officers; Transactions and Arrangements Concerning the Shares”) is incorporated herein by reference.

## ITEM 5.
PAST CONTACTS, TRANSACTIONS, NEGOTIATIONS AND AGREEMENTS.

(e)

The information set forth in the Offer to Purchase under Section 11 (“Interests of Directors and Executive Officers; Transactions and Arrangements Concerning the Shares”) is incorporated herein by reference.

## ITEM 6.
PURPOSES OF THE TRANSACTION AND PLANS OR PROPOSALS.

(a) and (b)

The information regarding the purpose of the transaction set forth in the Offer to Purchase under the heading “Summary Term Sheet” and Section 2 (“Purpose of the Tender Offer; Certain Effects of the Tender Offer”) is incorporated herein by reference.

(c)

The information about any plans or proposals set forth in the Offer to Purchase under