Keros Therapeutics, Inc.

KROS

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001664710

SEC filings (opens in a new tab)

In the last 90 days, Keros Therapeutics, Inc. insiders filed 2 open-market purchases and 4 sales; 132 institutions reported holding it in 13F filings for Q2 2026, worth $198.6M in total; no superinvestor holds it.

Q2 2025 vs. Q1 2025

How the institutions holding Keros Therapeutics, Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of KROS: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Of which not filed for Q2 2025	Q2 2025	Change
Holders	156	1	139	−16
Shares	36.7M	165	35.9M	−811.3K (−2.2%)
Value	$428.6M	$1.68K	$479.6M	+$50.9M (+11.9%)

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held Keros Therapeutics, Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to KROS in Q2 2025
Institution	Shares	Value	% of portfolio
Madison Avenue Partners, LP	2,691,465	$35.9M	2.40%
Jacobs Levy Equity Management, Inc	524,340	$7.00M	0.03%
Janus Henderson Group PLC	472,392	$6.31M	0.00%
Canada Pension Plan Investment Board	318,400	$4.25M	0.00%
Newtyn Management, LLC	246,857	$3.30M	0.50%
Renaissance Technologies LLC	146,600	$1.96M	0.00%
Y-Intercept (Hong Kong) Ltd	104,878	$1.40M	0.03%
Ameriprise Financial Inc	98,641	$1.32M	0.00%
State of Wisconsin Investment Board	71,924	$960.2K	0.00%
Arrowstreet Capital, Limited Partnership	64,581	$862.2K	0.00%
Gsa Capital Partners LLP	61,455	$820.0K	0.06%
Mackenzie Financial Corp	53,877	$719.3K	0.00%
Los Angeles Capital Management LLC	41,709	$556.8K	0.00%
Public Employees Retirement System of Ohio	26,103	$348.5K	0.00%
Lazard Asset Management LLC	21,849	$291.0K	0.00%
Martingale Asset Management L P	13,858	$185.0K	0.00%
STRS Ohio	9,400	$125.5K	0.00%
Red Tortoise LLC	146	$1.95K	0.00%
Essential Partners LLC	131	$1.75K	0.00%
Clearstead Advisors, LLC	119	$1.59K	0.00%
Raymond James Financial Inc	100	$1.33K	0.00%
Skopos Labs, Inc.	91	$1.22K	0.00%
Geneos Wealth Management Inc.	83	$1.11K	0.00%
Advisor Group Holdings, Inc.	74	$988	0.00%
Principal Securities, Inc.	59	$788	0.00%
IFP Advisors, Inc	1	$521	0.00%
Avion Wealth	36	$0	0.00%

Sold out (43)

Institutions that held Keros Therapeutics, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of KROS in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
DRW Securities, LLC	464,895	$4.74M
Catalio Capital Management, LP	389,384	$3.97M
Ikarian Capital, LLC	274,009	$2.79M
Blue Owl Capital Holdings LP	266,033	$2.71M
Parkman Healthcare Partners LLC	217,753	$2.22M
Cubist Systematic Strategies, LLC	198,411	$2.02M
EcoR1 Capital, LLC	187,500	$1.91M
22NW, LP	179,000	$1.82M
Clearbridge Investments, LLC	156,724	$1.60M
Walleye Capital LLC	150,503	$1.53M
Acadian Asset Management LLC	147,567	$1.50M
PFM Health Sciences, LP	104,323	$1.06M
Jump Financial, LLC	103,826	$1.06M
Stonepine Capital Management, LLC	100,000	$1.02M
Twinbeech Capital LP	97,677	$995.3K
Centiva Capital, LP	90,000	$917.1K
Boothbay Fund Management, LLC	81,270	$828.1K
Squarepoint Ops LLC	43,984	$448.2K
Tejara Capital Ltd	40,245	$410.1K
Woodline Partners LP	35,875	$365.6K
Quinn Opportunity Partners LLC	25,000	$254.8K
HAP Trading, LLC	22,551	$229.8K
Mirae Asset Global ETFs Holdings Ltd.	22,166	$227.4K
Jain Global LLC	19,986	$203.7K
Tudor Investment Corp Et Al	19,858	$202.4K
ExodusPoint Capital Management, LP	18,976	$193.0K
Shay Capital LLC	18,832	$191.9K
Corton Capital Inc.	18,212	$185.6K
Northwestern Mutual Wealth Management Co	17,674	$180.1K
Corebridge Financial, Inc.	16,212	$165.2K
Schonfeld Strategic Advisors LLC	15,558	$158.5K
Birchview Capital, LP	15,000	$152.8K
HRT Financial LP	14,747	$150.0K
Dark Forest Capital Management LP	13,015	$132.6K
Entropy Technologies, LP	11,891	$121.2K
Handelsbanken Fonder AB	10,800	$110.0K
Aquatic Capital Management LLC	6,775	$69.0K
Exchange Traded Concepts, LLC	6,014	$61.3K
California State Teachers Retirement System	2,250	$22.9K
Versant Capital Management, Inc	643	$6.55K
Coldstream Capital Management Inc	522	$5.32K
Private Trust Co NA	81	$825
Point72 Asset Management, L.P.	6	$59

Not filed for Q2 2025 yet (1)

Institutions that held Keros Therapeutics, Inc. at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding KROS in Q1 2025 that haven't filed for Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Lindbrook Capital, LLC	165	$1.68K