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person · Reporting owner

Lerner Lorena Raquel

Disclosed activity across 1 company

Tapewire entity
21145
SEC CIK
0002081359

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Keros Therapeutics, Inc.KROS · Entity 6242Chief Scientific OfficerAugust 18, 2026August 20, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Keros Therapeutics, Inc.

Report date August 18, 2026 · Filed August 20, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect27,559 Reported balance After 2026-08-18 transaction · row 1
1 source row

Row 1 · 2026-08-18 · Sale · Disposed 3,568 · Balance 27,559

F1: The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.14 to $10.50 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Filing footnotes · ownership attribution and instrument terms

F1: The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.14 to $10.50 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 18, 2026 Filed Aug 20, 2026 20:10 UTC Keros Therapeutics, Inc. KROS · Entity 6242 SaleCommon Stock 3,568 $10.29 $36,714.72
Disclosure

SEC source: 0002081359-26-000008 · form4-08202026_040806.xml · nonDerivative · entry 1

Lerner Lorena Raquel · CIK 0002081359 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,559

F1 · shares: The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.14 to $10.50 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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February 24, 2026 Filed Feb 26, 2026 21:15 UTC Keros Therapeutics, Inc. KROS · Entity 6242 GrantEmployee Stock Option (Right to Buy) · Derivative 75,000 $0.00 Strike: $15.52 $0.00
Disclosure

SEC source: 0002081359-26-000005 · form4-02262026_040210.xml · derivative · entry 1

Lerner Lorena Raquel · CIK 0002081359 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,000

Underlying: Common Stock · 75,000 shares

Expires 2036-02-23

F1 · derivative.exercise_date: One-fourth (1/4th) of the shares subject to the option shall vest on February 24, 2027, and the remaining shares subject to the option shall vest in twelve substantially equal quarterly installments thereafter, subject to the Reporting Person continuing to provide service through each such date.

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February 18, 2026 Filed Feb 20, 2026 21:15 UTC Keros Therapeutics, Inc. KROS · Entity 6242 SaleCommon Stock 3,873 $16.35 $63,323.55
Disclosure

SEC source: 0002081359-26-000002 · form4-02202026_040205.xml · nonDerivative · entry 1

Lerner Lorena Raquel · CIK 0002081359 · Chief Science Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,127

F1 · shares: The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.05 to $16.65 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.