KEROS THERAPEUTICS INC

Ticker: KROS CUSIP: 492327101 Class: Common Stock

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

Note: Option positions (PUT/CALL) are excluded.

Q1 2025

Shares 187,500 Value ($000) $1,911 Avg Close $11.61 Range $9.71 - $16.70

Q4 2024

Shares 187,500 Value ($000) $2,968 Avg Close $51.97 Range $15.33 - $72.37

Q3 2024

Shares 187,500 Value ($000) $10,888 Avg Close $49.39 Range $40.93 - $59.06

Q2 2024

Shares 187,500 Value ($000) $8,569 Avg Close $53.73 Range $43.30 - $67.30

Q1 2024

Shares 187,500 Value ($000) $12,413 Avg Close $59.30 Range $39.00 - $73.00

Q2 2020

Shares 220,216 Value ($000) $8,260 Avg Close $30.81 Range $19.10 - $42.26

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	187,500	$1,911	$11.61	$9.71 - $16.70
Q4 2024	187,500	$2,968	$51.97	$15.33 - $72.37
Q3 2024	187,500	$10,888	$49.39	$40.93 - $59.06
Q2 2024	187,500	$8,569	$53.73	$43.30 - $67.30
Q1 2024	187,500	$12,413	$59.30	$39.00 - $73.00
Q2 2020	220,216	$8,260	$30.81	$19.10 - $42.26