Lorena Raquel Lerner

CIK: 0002081359

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (66.7%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)1 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

KROS

Keros Therapeutics, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (3 total)

KROS
Keros Therapeutics, Inc.
Aug 18, 2026
Sale(S)
Direct
3.6K shares at avg. $10.29$37K
KROS
Keros Therapeutics, Inc.
Feb 24, 2026
Award(A)
Employee Stock Option (Right to Buy)
Direct
75K shares-
KROS
Keros Therapeutics, Inc.
Feb 18, 2026
Sale(S)
Direct
3.9K shares at avg. $16.35$63K

		Type	Shares	Price		Ownership
Aug 18, 2026	KROS Keros Therapeutics, Inc.	Sale(S)	3,568	$10.29	$36,715	Direct
Feb 24, 2026	KROS Keros Therapeutics, Inc.	Award(A) Employee Stock Option (Right to Buy)	75,000	-	-	Direct
Feb 18, 2026	KROS Keros Therapeutics, Inc.	Sale(S)	3,873	$16.35	$63,324	Direct

1-3 of 3 transactions

About Lerner Lorena Raquel

Lerner Lorena Raquel (SEC CIK 0002081359) files insider reports with the SEC as Chief Scientific Officer of Keros Therapeutics, Inc. (KROS).

Signal8 holds 4 ownership filings by Lerner Lorena Raquel (1 Form 3, 3 Form 4), filed between Aug 15, 2025 and Aug 20, 2026. Those filings report 3 transactions, from Feb 18, 2026 to Aug 18, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Lerner Lorena Raquel's filings is in LEXINGTON, MA.

Recent filings by Lerner Lorena Raquel

Aug 18, 2026: Open-market sale of KROS shares (Form 4, code S).
Feb 24, 2026: Grant or award of KROS derivative securities (Form 4, code A).
Feb 18, 2026: Open-market sale of KROS shares (Form 4, code S).

Other insiders filing for Keros Therapeutics, Inc. (KROS)

Tanini Annita, Corp. Controller & VP, Finance
Cho Esther, Chief Legal Officer
Newton Charles W., Director
BIENAIME JEAN JACQUES, Director
Prener Anne, Director
Farzan Nima, Director

How to read Form 4 transaction codes