Filing Details
- Accession Number:
- 0001999371-25-004429
- Form Type:
- 13D Filing
- Publication Date:
- 2025-04-17 20:00:00
- Filed By:
- Pontifax Management 4 GP (2015) Ltd.
- Company:
- Keros Therapeutics Inc. (NASDAQ:KROS)
- Filing Date:
- 2025-04-18
- SEC Url:
- 13D Filing
Ownership Summary
Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.
| Name | Sole Voting Power | Shared Voting Power | Sole Dispositive Power | Shared Dispositive Power | Aggregate Amount Owned Power | Percent of Class |
|---|---|---|---|---|---|---|
| Pontifax Management 4 GP (2015) Ltd. | 0 | 4,787,331 | 0 | 4,787,331 | 4,787,331 | 11.8% |
| Pontifax (Israel) IV, L.P. | 0 | 2,284,612 | 0 | 2,284,612 | 2,284,612 | 5.6% |
| Pontifax (Cayman) IV, L.P. | 0 | 1,121,045 | 0 | 1,121,045 | 1,121,045 | 2.8% |
| Pontifax (China) IV, L.P. | 0 | 1,226,412 | 0 | 1,226,412 | 1,226,412 | 3.0% |
| Pontifax Late Stage Fund L.P. | 0 | 155,262 | 0 | 155,262 | 155,262 | 0.4% |
| Pontifax Late Stage GP Ltd. | 0 | 155,262 | 0 | 155,262 | 155,262 | 0.4% |
Filing
|
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 1)
|
Keros Therapeutics, Inc. (Name of Issuer) |
Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) |
492327101 (CUSIP Number) |
Asaf Shinar Pontifax, 14 Shenkar Street Herzliya Pituach, L3, 4672514 972-9-9725617 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
04/17/2025 (Date of Event Which Requires Filing of This Statement) |
If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.
The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the
Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).
SCHEDULE 13D
|
| CUSIP No. | 492327101 |
| 1 |
Name of reporting person
Pontifax Management 4 GP (2015) Ltd. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
ISRAEL
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
4,787,331.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
11.8 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
PN |
SCHEDULE 13D
|
| CUSIP No. | 492327101 |
| 1 |
Name of reporting person
Pontifax (Israel) IV, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
ISRAEL
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
2,284,612.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
5.6 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
PN |
SCHEDULE 13D
|
| CUSIP No. | 492327101 |
| 1 |
Name of reporting person
Pontifax (Cayman) IV, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
CAYMAN ISLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
1,121,045.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
2.8 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
PN |
SCHEDULE 13D
|
| CUSIP No. | 492327101 |
| 1 |
Name of reporting person
Pontifax (China) IV, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
CAYMAN ISLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
1,226,412.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
3.0 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
PN |
SCHEDULE 13D
|
| CUSIP No. | 492327101 |
| 1 |
Name of reporting person
Pontifax Late Stage Fund L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
CAYMAN ISLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
155,262.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
0.4 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
PN |
SCHEDULE 13D
|
| CUSIP No. | 492327101 |
| 1 |
Name of reporting person
Pontifax Late Stage GP Ltd. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
ISRAEL
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
155,262.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
0.4 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
PN |
SCHEDULE 13D
|
| Item 1. | Security and Issuer | |
| (a) | Title of Class of Securities:
Common Stock, Par Value $0.0001 Per Share | |
| (b) | Name of Issuer:
Keros Therapeutics, Inc. | |
| (c) | Address of Issuer's Principal Executive Offices:
1050 WALTHAM STREET, SUITE 302, LEXINGTON,
MASSACHUSETTS
, 02421. | |
Item 1 Comment:
This Amendment No. 1 to Schedule 13D ("Amendment No. 1") amends and supplements the Schedule 13D originally filed with the Securities and Exchange Commission ("SEC") on April 23, 2020 (the "Original Schedule 13D" and together with Amendment No. 1, the "Schedule 13D") as set forth below. Except as specifically amended and supplemented by this Amendment No. 1, the Schedule 13D remains in full force and effect. All capitalized terms contained herein but not otherwise defined shall have the meaning ascribed to such terms in the Schedule 13D. | ||
| Item 2. | Identity and Background | |
| (c) | The second sentence of the fifth paragraph of Item 2 of the Original Schedule 13D is amended and restated as follows:
"Late Stage GP is the ultimate general partner of Late Stage, and the sole shareholder of Late Stage GP is Shlomo Karako." | |
| Item 3. | Source and Amount of Funds or Other Consideration | |
Item 3 is hereby amended and supplemented with the addition of the following:
In November 2020, the IV Funds and Late Stage acquired an aggregate 60,000 shares of Common Stock at a purchase price of $50.00 per share for an aggregate amount of $3,000,000.
In November 2022, the IV Funds and Late Stage acquired an aggregate of 7,230 shares of Common Stock at a purchase price of $0.0001 per share pursuant to the exercise of call options for an aggregate amount of $0.72. | ||
| Item 4. | Purpose of Transaction | |
Item 4 is hereby amended and supplemented with the addition of the following:
On April 17, 2025, the IV Funds and Late Stage entered into a Letter Agreement with the Issuer (the "Letter Agreement") pursuant to which the Board of Directors of the Issuer (the "Board") will nominate Mr. Nussbaum, along with its other nominees Mary Ann Gray and Alpna Seth, for election to the Board as directors at the Issuer's 2025 Annual Meeting of Stockholders. Under the Letter Agreement, the IV Funds, Late Stage and their respective affiliates agreed to abide by certain standstill terms.
The foregoing description of the Letter Agreement is not intended to be complete and is qualified in its entirety by reference to the full text of the Letter Agreement, a copy of which is filed herewith as Exhibit 3 to this Amendment No. 1 by reference to Exhibit 10.1 of the Issuer's Current Report on Form 8-K filed with the SEC on April 18, 2025 (the "Form 8-K") and is incorporated by reference herein. | ||
| Item 5. | Interest in Securities of the Issuer | |
| (a) | See rows (11) and (13) of the cover pages to this Schedule 13D for the aggregate number of shares of Common Stock and percentage of shares of Common Stock beneficially owned by each of the Reporting Persons. | |
| (b) | See rows (7) through (10) of the cover pages to this Schedule 13D for the aggregate number of shares of Common Stock and percentage of shares of Common Stock beneficially owned by each of the Reporting Persons. See Item 5(a) above. | |
| (c) | The Reporting Persons have not effected any transactions during the past sixty (60) days in any shares of Common Stock. | |
| Item 6. | Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer | |
Item 6 is hereby amended and supplemented with the addition of the following:
The Reporting Persons' responses in Item 4 of this Amendment No. 1 are incorporated by reference into this Item 6 | ||
| Item 7. | Material to be Filed as Exhibits. | |
Item 7 is hereby amended and supplemented with the addition of the following to the Exhibit Index:
3. Letter Agreement, dated April 17, 2025, by and among the Issuer, the IV Funds and Late Stage (incorporated by reference to Exhibit 10.1 of the Issuer's Current Report on the Form 8-K). | ||
| 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.
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