Keros Therapeutics (KROS) insider trading activity: Get Latest News Today

KROS Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares10.51

Short Percent Of Float14.32

Shares Outstanding40.51M

Shares Float35.37M

Shares Short4.26M

Short Ratio2.05

14.32%

Short % of Float

10.51%

Short % of Shares Outstanding

Market Insider KROS

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

2.3% Percentage of Shares held by All Insiders

104.01% Percentage of Shares held by All Institutions

106.46% Percentage of Float held by Institutions

230

Number of Institutions Holding Shares

Institutional Ownership

About 104.01% of KROS shares are held by financial institutions. RUSSELL INVESTMENTS GROUP, LTD. is the top corporate investor, holding 82.35K shares valued at $5.45M. A 0.27% stake in Keros Therapeutics, Inc. is owned by the company. ENSIGN PEAK ADVISORS, INC owns 71.74K shares valued at $4.75M, which translates its holding of 0.24% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2024	RUSSELL INVESTMENTS GROUP, LTD.	0.27%	82.35K	5.45M	-12.21K	-12.91%
Mar 31, 2024	ENSIGN PEAK ADVISORS, INC	0.24%	71.74K	4.75M	71.74K	+100.00%
Mar 31, 2024	JPMORGAN CHASE & CO	0.18%	55.41K	3.67M	-7.23K	-11.55%
Mar 31, 2024	SWISS NATIONAL BANK	0.17%	49.9K	3.3M	9K	+22.00%
Mar 31, 2024	PLATINUM INVESTMENT MANAGEMENT LTD	0.12%	34.72K	2.3M	-14.17K	-28.98%
Mar 31, 2024	RHUMBLINE ADVISERS	0.11%	34.53K	2.29M	2.87K	+9.07%
Mar 31, 2024	CREDIT SUISSE AG/	0.11%	34.16K	2.26M	7.52K	+28.23%
Mar 31, 2024	BALYASNY ASSET MANAGEMENT L.P.	0.08%	25.51K	1.69M	7.8K	+44.01%
Mar 31, 2024	ALPS ADVISORS INC	0.08%	25.38K	1.68M	5.77K	+29.40%
Mar 31, 2024	LEGAL & GENERAL GROUP PLC	0.08%	24.58K	1.63B	5.71K	+30.23%
Mar 31, 2024	STATE OF WISCONSIN INVESTMENT BOARD	0.06%	18.93K	1.25M	-9.96K	-34.47%
Mar 31, 2024	PROFUND ADVISORS LLC	0.06%	18.66K	1.24B	7.81K	+72.04%
Mar 31, 2024	NEW YORK STATE COMMON RETIREMENT FUND	0.06%	17.12K	1.13M	6.83K	+66.35%
Mar 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.04%	11.6K	767.92K	11.6K	+100.00%
Mar 31, 2024	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0.05%	14.32K	947.72K	2.88K	+25.13%
Mar 31, 2024	NEOS INVESTMENT MANAGEMENT LLC	0.05%	14.26K	944.28K	14.26K	+100.00%
Mar 31, 2024	ALGERT GLOBAL LLC	0.05%	14.2K	940K	3.56K	+33.47%
Mar 31, 2024	MIRAE ASSET GLOBAL INVESTMENTS CO., LTD.	0.04%	13.15K	661.76K	251	+1.95%
Mar 31, 2024	METLIFE INVESTMENT MANAGEMENT, LLC	0.04%	13.14K	870.07K	1.26K	+10.58%
Mar 31, 2024	AMERICAN INTERNATIONAL GROUP, INC.	0.04%	12.65K	837.63K	1.47K	+13.09%
Mar 31, 2024	AMERICAN FINANCIAL GROUP INC	0.03%	10.11K	669K	0	0
Mar 31, 2024	EDBI PTE LTD	0.03%	10.11K	668.95K	0	0
Mar 31, 2024	WELLS FARGO & COMPANY/MN	0.03%	9.31K	616.26K	3.36K	+56.56%
Mar 31, 2024	ALLIANZ ASSET MANAGEMENT GMBH	0.03%	8.9K	589.18K	8.9K	+100.00%
Mar 31, 2024	GSA CAPITAL PARTNERS LLP	0.03%	8.54K	565K	1.74K	+25.52%
Mar 31, 2024	FORA CAPITAL, LLC	0.03%	8.48K	561.38K	8.48K	+100.00%
Mar 31, 2024	FIRST TRUST ADVISORS LP	0.03%	8.25K	546.02K	8.25K	+100.00%
Mar 31, 2024	BLACKROCK INC.	7.19%	2.17M	143.39M	129.22K	+6.34%
Mar 31, 2024	EVENTIDE ASSET MANAGEMENT, LLC	2.26%	680K	45.02M	100K	+17.24%
Mar 31, 2024	CANDRIAM S.C.A.	2.16%	652K	43.16M	-167.06K	-20.40%
Mar 31, 2024	HOLOCENE ADVISORS, LP	2.12%	637.98K	42.23M	637.98K	+100.00%
Mar 31, 2024	JEFFERIES FINANCIAL GROUP INC.	2.1%	633.67K	41.95M	617.77K	+3,885.35%
Mar 31, 2024	FRANKLIN RESOURCES INC	2.1%	632.05K	41.84M	-67.38K	-9.63%
Mar 31, 2024	GRANAHAN INVESTMENT MANAGEMENT, LLC	0.49%	149.01K	9.86M	149.01K	+100.00%
Mar 31, 2024	UBS GROUP AG	0.41%	124.19K	8.22M	-57.2K	-31.54%
Mar 31, 2024	CITIGROUP INC	0.39%	117.46K	7.78M	-51.94K	-30.66%
Mar 31, 2024	WCM INVESTMENT MANAGEMENT, LLC	0.39%	117.03K	7.75M	-37.63K	-24.33%
Mar 31, 2024	NUVEEN ASSET MANAGEMENT, LLC	0.34%	101.24K	6.7M	25.64K	+33.92%
Mar 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	1.98%	595.85K	39.45M	85.64K	+16.78%
Mar 31, 2024	REDMILE GROUP, LLC	1.83%	552.51K	36.58M	552.51K	+100.00%
Mar 31, 2024	CITADEL ADVISORS LLC	1.49%	450.28K	29.81M	-309.89K	-40.77%
Mar 31, 2024	OPALEYE MANAGEMENT INC.	1.22%	367.5K	24.33M	10K	+2.80%
Mar 31, 2024	PARKMAN HEALTHCARE PARTNERS LLC	0.59%	178.34K	11.81M	-182.13K	-50.53%
Mar 31, 2024	BLUE OWL CAPITAL HOLDINGS LP	0.57%	172.63K	11.43M	-180K	-51.04%
Mar 31, 2024	BANK OF AMERICA CORP /DE/	0.57%	172.48K	11.42M	-20.97K	-10.84%
Mar 31, 2024	DIMENSIONAL FUND ADVISORS LP	0.55%	165.41K	10.95M	-5.45K	-3.19%
Mar 31, 2024	BANK OF NEW YORK MELLON CORP	0.33%	99.63K	6.6M	5.13K	+5.43%
Mar 31, 2024	READYSTATE ASSET MANAGEMENT LP	0.31%	94.37K	6.25M	94.37K	+100.00%
Mar 31, 2024	ALLIANCEBERNSTEIN L.P.	0.3%	91.86K	6.08M	70.74K	+334.93%
Mar 31, 2024	INVESCO LTD.	0.29%	88.68K	5.87M	78.7K	+788.61%
Mar 31, 2024	ALKEON CAPITAL MANAGEMENT LLC	5.31%	1.6M	105.85M	100K	+6.67%
Mar 31, 2024	STATE STREET CORP	5.19%	1.56M	103.46M	508.53K	+48.23%
Mar 31, 2024	VANGUARD GROUP INC	5.13%	1.55M	102.33M	113.56K	+7.93%
Mar 31, 2024	DARWIN GLOBAL MANAGEMENT, LTD.	4.77%	1.44M	95.06M	375.52K	+35.41%
Mar 31, 2024	ORBIMED ADVISORS LLC	4.21%	1.27M	83.99M	0	0
Mar 31, 2024	PRICE T ROWE ASSOCIATES INC /MD/	4.04%	1.22M	80.67M	176.8K	+16.97%
Mar 31, 2024	POINT72 ASSET MANAGEMENT, L.P.	3.23%	971.88K	64.34M	890.65K	+1,096.46%
Mar 31, 2024	TCG CROSSOVER MANAGEMENT, LLC	2.92%	879.34K	58.21M	879.34K	+100.00%
Mar 31, 2024	WOODLINE PARTNERS LP	2.53%	761.7K	50.42M	177.91K	+30.47%
Mar 31, 2024	ADAR1 CAPITAL MANAGEMENT, LLC	1.12%	338.24K	22.39M	-350.07K	-50.86%
Mar 31, 2024	MILLENNIUM MANAGEMENT LLC	1.12%	337.66K	22.35M	-184.47K	-35.33%
Mar 31, 2024	NANTAHALA CAPITAL MANAGEMENT, LLC	0.98%	294K	19.46M	-16.14K	-5.21%
Mar 31, 2024	MORGAN STANLEY	0.96%	289.16K	19.14M	-636.23K	-68.75%
Mar 31, 2024	SOLEUS CAPITAL MANAGEMENT, L.P.	0.91%	273.6K	18.11M	273.6K	+100.00%
Mar 31, 2024	MARSHALL WACE, LLP	0.91%	272.97K	18.07M	223.5K	+451.77%
Mar 31, 2024	GOLDMAN SACHS GROUP INC	0.86%	258.37K	17.1M	53.27K	+25.97%
Mar 31, 2024	AMERICAN CENTURY COMPANIES INC	0.79%	238.81K	15.81M	24.21K	+11.28%
Mar 31, 2024	NORTHERN TRUST CORP	0.78%	235.64K	15.6M	18.79K	+8.67%
Mar 31, 2024	AVIDITY PARTNERS MANAGEMENT LP	0.7%	209.7K	13.88M	209.7K	+100.00%
Mar 31, 2024	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.69%	207.76K	13.75M	26.18K	+14.42%
Mar 31, 2024	CIBC WORLD MARKETS CORP	0.66%	200K	13.24M	200K	+100.00%
Mar 31, 2024	ADAGE CAPITAL PARTNERS GP, L.L.C.	0.63%	190K	12.58M	190K	+100.00%
Mar 31, 2024	ECOR1 CAPITAL, LLC	0.62%	187.5K	12.41M	187.5K	+100.00%
Mar 31, 2024	DEUTSCHE BANK AG\	0.41%	124.07K	8.21M	-234.2K	-65.37%
Mar 31, 2024	RAFFERTY ASSET MANAGEMENT, LLC	0.4%	119.51K	7.91M	54.23K	+83.07%
Mar 31, 2024	BRAIDWELL LP	2.45%	737.38K	48.81M	-381.58K	-34.10%
Mar 31, 2024	FMR LLC	16.66%	5.02M	332.23M	1.14M	+29.54%
Dec 31, 2023	NANTAHALA CAPITAL MANAGEMENT, LLC	1.05%	310.14K	12.33M	-18.64K	-5.67%
Dec 31, 2023	BARCLAYS PLC	0.88%	259.76K	10.33M	210.25K	+424.65%
Dec 31, 2023	NORTHERN TRUST CORP	0.73%	216.85K	8.62M	3.95K	+1.85%
Dec 31, 2023	AMERICAN CENTURY COMPANIES INC	0.72%	214.6K	8.53M	523	+0.24%
Dec 31, 2023	GOLDMAN SACHS GROUP INC	0.69%	205.1K	8.15M	105.04K	+104.98%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0.65%	193.45K	7.69M	138.8K	+253.98%
Dec 31, 2023	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.61%	181.58K	7.22M	4.63K	+2.61%
Dec 31, 2023	UBS GROUP AG	0.61%	181.39K	7.21M	174.8K	+2,653.68%
Dec 31, 2023	DIMENSIONAL FUND ADVISORS LP	0.58%	170.85K	6.79M	-425	-0.25%
Dec 31, 2023	CITIGROUP INC	0.57%	169.39K	6.73M	71.28K	+72.66%
Dec 31, 2023	WCM INVESTMENT MANAGEMENT, LLC	0.52%	154.66K	6.35M	57.12K	+58.56%
Dec 31, 2023	SCHONFELD STRATEGIC ADVISORS LLC	0.32%	95.34K	3.79M	17.54K	+22.54%
Dec 31, 2023	RUSSELL INVESTMENTS GROUP, LTD.	0.32%	94.56K	3.76M	18.68K	+24.62%
Dec 31, 2023	BANK OF NEW YORK MELLON CORP	0.32%	94.5K	3.76M	-49.91K	-34.56%
Dec 31, 2023	POINT72 ASSET MANAGEMENT, L.P.	0.27%	81.23K	3.23M	-68.5K	-45.75%
Dec 31, 2023	NUVEEN ASSET MANAGEMENT, LLC	0.25%	75.6K	3.01M	4.58K	+6.45%
Dec 31, 2023		0.25%	74.65K	2.97M	74.65K	+100.00%
Dec 31, 2023	DAFNA CAPITAL MANAGEMENT LLC	0.25%	74.36K	2.96M	8.4K	+12.73%
Dec 31, 2023	RAFFERTY ASSET MANAGEMENT, LLC	0.22%	65.28K	2.6M	7.09K	+12.19%
Dec 31, 2023	JPMORGAN CHASE & CO	0.21%	62.64K	2.49M	9.58K	+18.04%
Dec 31, 2023	MARSHALL WACE, LLP	0.17%	49.47K	1.97M	49.47K	+100.00%
Dec 31, 2023	PLATINUM INVESTMENT MANAGEMENT LTD	0.16%	48.88K	1.94M	48.88K	+100.00%
Dec 31, 2023	SWISS NATIONAL BANK	0.14%	40.9K	1.63M	-4.7K	-10.31%
Dec 31, 2023	NORGES BANK	0.12%	35.7K	1.42M	35.7K	+100.00%
Dec 31, 2023	QUBE RESEARCH & TECHNOLOGIES LTD	0.12%	34.54K	1.37M	25.58K	+285.60%
Dec 31, 2023	VOYA INVESTMENT MANAGEMENT LLC	0.11%	33.64K	1.34M	-38.51K	-53.38%
Dec 31, 2023	RHUMBLINE ADVISERS	0.11%	31.66K	1.26M	-886	-2.72%
Dec 31, 2023	TWO SIGMA INVESTMENTS, LP	0.11%	31.57K	1.26M	31.57K	+100.00%
Dec 31, 2023	FMR LLC	13.06%	3.87M	154.04M	269.28K	+7.47%
Dec 31, 2023	BLACKROCK INC.	6.87%	2.04M	80.98M	169.44K	+9.07%
Dec 31, 2023	ALKEON CAPITAL MANAGEMENT LLC	5.05%	1.5M	59.6M	-177.62K	-10.59%
Dec 31, 2023	VANGUARD GROUP INC	4.83%	1.43M	56.94M	25.76K	+1.83%
Dec 31, 2023	ORBIMED ADVISORS LLC	4.28%	1.27M	50.44M	-246K	-16.24%
Dec 31, 2023	BRAIDWELL LP	3.77%	1.12M	44.49M	-238.35K	-17.56%
Dec 31, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	3.57%	1.06M	42.16M	1.06M	+100.00%
Dec 31, 2023	STATE STREET CORP	3.55%	1.05M	41.92M	152.37K	+16.89%
Dec 31, 2023	PRICE T ROWE ASSOCIATES INC /MD/	3.51%	1.04M	41.42M	-225.53K	-17.80%
Dec 31, 2023	MORGAN STANLEY	3.12%	925.39K	36.79M	476.69K	+106.24%
Dec 31, 2023	CANDRIAM S.C.A.	2.76%	819.06K	32.57M	78K	+10.53%
Dec 31, 2023	CITADEL ADVISORS LLC	2.56%	760.17K	30.22M	355.02K	+87.63%
Dec 31, 2023	FRANKLIN RESOURCES INC	2.36%	699.43K	27.81M	226.67K	+47.95%
Dec 31, 2023	WOODLINE PARTNERS LP	1.97%	583.79K	23.21M	-134.63K	-18.74%
Dec 31, 2023	EVENTIDE ASSET MANAGEMENT, LLC	1.96%	580K	23.06M	0	0
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	1.76%	522.13K	20.76M	318.07K	+155.87%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	1.72%	510.21K	20.29M	24.21K	+4.98%
Dec 31, 2023	PARKMAN HEALTHCARE PARTNERS LLC	1.22%	360.47K	14.33M	61.99K	+20.77%
Dec 31, 2023	DEUTSCHE BANK AG\	1.21%	358.28K	14.25M	345.7K	+2,749.79%
Dec 31, 2023	OPALEYE MANAGEMENT INC.	1.21%	357.5K	14.21M	-2.9K	-0.80%
Dec 31, 2023	BLUE OWL CAPITAL HOLDINGS LP	1.19%	352.63K	14.02M	352.63K	+100.00%

KROS Insiders

Among the KROS insiders holding of 2.3% of the stake in company, ADAR1 CAPITAL MANAGEMENT, LLC, 10 percent owner, holds the largest shares of 743.56K. KNOWLES JULIUS, director, is the second largest KROS insider with ownership of 232.73K shares. ORBIMED ADVISORS LLC, director, stands third with possession of 119.52K shares of that stake.

Insiders	Designation	Shares Held
ADAR1 CAPITAL MANAGEMENT, LLC	10 percent owner	743.56K
KNOWLES JULIUS	director	232.73K
ORBIMED ADVISORS LLC	director	119.52K
GORDON CARL L	director	119.52K
LACHEY JENNIFER	Chief Scientific Officer	95.1K
REGNANTE KEITH	CHIEF FINANCIAL OFFICER	0
ROVALDI CHRISTOPHER	Chief Operating Officer	0

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Apr 09, 2025	ADAR1 CAPITAL MANAGEMENT, LLC	PURCHASE	9.40	16.37K	153.75K	743.56K
Aug 13, 2024	ORBIMED ADVISORS LLC	SALE	44.01	29.4K	1.29M	119.52K
Aug 13, 2024	GORDON CARL L	SALE	44.01	29.4K	1.29M	119.52K
Jan 04, 2024	REGNANTE KEITH	SALE	45.29	40K	1.81M	0
Nov 04, 2023	REGNANTE KEITH	SALE	45.29	40K	1.81M	0
Jun 09, 2023	REGNANTE KEITH	SALE	47.25	2.58K	121.86K	0
Jun 08, 2023	REGNANTE KEITH	SALE	48.65	2.7K	131.31K	0
Jul 15, 2022	LACHEY JENNIFER	SALE	30.00	46.03K	1.38M	95.1K
Jul 13, 2022	LACHEY JENNIFER	SALE	30.00	1.92K	57.48K	95.1K
May 11, 2022	LACHEY JENNIFER	SALE	42.49	944	40.11K	86.66K
Apr 11, 2022	LACHEY JENNIFER	SALE	64.15	559	35.86K	85.7K
Apr 06, 2022	ROVALDI CHRISTOPHER	SALE	65.00	1.73K	112.32K	0
Apr 04, 2022	LACHEY JENNIFER	SALE	60.00	7.95K	477K	85.7K
Apr 01, 2022	ROVALDI CHRISTOPHER	SALE	58.83	105	6.18K	0
Mar 11, 2022	LACHEY JENNIFER	SALE	54.54	875	47.72K	85.7K
Feb 11, 2022	LACHEY JENNIFER	SALE	53.10	199	10.57K	85.7K
Jan 11, 2022	LACHEY JENNIFER	SALE	54.45	1.13K	61.75K	85.7K
Jan 05, 2022	KNOWLES JULIUS	SALE	59.00	435	25.67K	232.73K
Jan 05, 2022	LACHEY JENNIFER	SALE	60.00	2.65K	159K	85.7K
Jan 04, 2022	KNOWLES JULIUS	SALE	58.86	2.2K	129.2K	234.32K
Jan 03, 2022	KNOWLES JULIUS	SALE	59.40	162	9.62K	242.24K
Dec 15, 2021	LACHEY JENNIFER	SALE	50.00	735	36.75K	85.7K
Dec 13, 2021	LACHEY JENNIFER	SALE	53.64	7	375.48	85.7K
Dec 02, 2021	KNOWLES JULIUS	SALE	54.67	90	4.92K	251.54K
Dec 01, 2021	KNOWLES JULIUS	SALE	56.27	1.02K	57.45K	261.54K
Nov 11, 2021	LACHEY JENNIFER	SALE	59.78	4.56K	272.66K	85.7K
Nov 10, 2021	LACHEY JENNIFER	SALE	60.00	15.9K	954K	85.7K
Nov 04, 2021	LACHEY JENNIFER	SALE	50.00	10.6K	530K	85.7K
Nov 03, 2021	KNOWLES JULIUS	SALE	42.45	2.35K	99.59K	270.35K
Nov 02, 2021	KNOWLES JULIUS	SALE	43.04	991	42.65K	276.65K
Nov 01, 2021	KNOWLES JULIUS	SALE	42.43	4.8K	203.54K	279.76K
Oct 20, 2021	KNOWLES JULIUS	SALE	38.31	1.46K	56.05K	289.16K
Oct 19, 2021	KNOWLES JULIUS	SALE	38.49	460	17.71K	290.77K
Oct 18, 2021	KNOWLES JULIUS	SALE	38.46	92	3.54K	433.3K
Oct 15, 2021	KNOWLES JULIUS	SALE	40.60	92	3.74K	441.65K
Oct 14, 2021	KNOWLES JULIUS	SALE	40.13	2.65K	106.46K	446.61K
Apr 13, 2020	KNOWLES JULIUS	PURCHASE	20.98	1.19K	24.99K	1.19K

Insider Transaction Summary (6 Months)

SHARESTRANS

PURCHASE16.37K1

SALES00

NET SHARES16.37K1

SHARES HELD743.56K1

% NET SHARES-97.8%0%

Frequently Asked Questions

KROS Stock Outstanding Shares

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares10.51

Short Percent Of Float14.32

Shares Outstanding40.51M

Shares Float35.37M

Shares Short4.26M

Short Ratio2.05

14.32%

Short % of Float

10.51%

Short % of Shares Outstanding

Market Insider KROS

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

2.3% Percentage of Shares held by All Insiders

104.01% Percentage of Shares held by All Institutions

106.46% Percentage of Float held by Institutions

230

Number of Institutions Holding Shares

Institutional Ownership

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2024	RUSSELL INVESTMENTS GROUP, LTD.	0.27%	82.35K	5.45M	-12.21K	-12.91%
Mar 31, 2024	ENSIGN PEAK ADVISORS, INC	0.24%	71.74K	4.75M	71.74K	+100.00%
Mar 31, 2024	JPMORGAN CHASE & CO	0.18%	55.41K	3.67M	-7.23K	-11.55%
Mar 31, 2024	SWISS NATIONAL BANK	0.17%	49.9K	3.3M	9K	+22.00%
Mar 31, 2024	PLATINUM INVESTMENT MANAGEMENT LTD	0.12%	34.72K	2.3M	-14.17K	-28.98%
Mar 31, 2024	RHUMBLINE ADVISERS	0.11%	34.53K	2.29M	2.87K	+9.07%
Mar 31, 2024	CREDIT SUISSE AG/	0.11%	34.16K	2.26M	7.52K	+28.23%
Mar 31, 2024	BALYASNY ASSET MANAGEMENT L.P.	0.08%	25.51K	1.69M	7.8K	+44.01%
Mar 31, 2024	ALPS ADVISORS INC	0.08%	25.38K	1.68M	5.77K	+29.40%
Mar 31, 2024	LEGAL & GENERAL GROUP PLC	0.08%	24.58K	1.63B	5.71K	+30.23%
Mar 31, 2024	STATE OF WISCONSIN INVESTMENT BOARD	0.06%	18.93K	1.25M	-9.96K	-34.47%
Mar 31, 2024	PROFUND ADVISORS LLC	0.06%	18.66K	1.24B	7.81K	+72.04%
Mar 31, 2024	NEW YORK STATE COMMON RETIREMENT FUND	0.06%	17.12K	1.13M	6.83K	+66.35%
Mar 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.04%	11.6K	767.92K	11.6K	+100.00%
Mar 31, 2024	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0.05%	14.32K	947.72K	2.88K	+25.13%
Mar 31, 2024	NEOS INVESTMENT MANAGEMENT LLC	0.05%	14.26K	944.28K	14.26K	+100.00%
Mar 31, 2024	ALGERT GLOBAL LLC	0.05%	14.2K	940K	3.56K	+33.47%
Mar 31, 2024	MIRAE ASSET GLOBAL INVESTMENTS CO., LTD.	0.04%	13.15K	661.76K	251	+1.95%
Mar 31, 2024	METLIFE INVESTMENT MANAGEMENT, LLC	0.04%	13.14K	870.07K	1.26K	+10.58%
Mar 31, 2024	AMERICAN INTERNATIONAL GROUP, INC.	0.04%	12.65K	837.63K	1.47K	+13.09%
Mar 31, 2024	AMERICAN FINANCIAL GROUP INC	0.03%	10.11K	669K	0	0
Mar 31, 2024	EDBI PTE LTD	0.03%	10.11K	668.95K	0	0
Mar 31, 2024	WELLS FARGO & COMPANY/MN	0.03%	9.31K	616.26K	3.36K	+56.56%
Mar 31, 2024	ALLIANZ ASSET MANAGEMENT GMBH	0.03%	8.9K	589.18K	8.9K	+100.00%
Mar 31, 2024	GSA CAPITAL PARTNERS LLP	0.03%	8.54K	565K	1.74K	+25.52%
Mar 31, 2024	FORA CAPITAL, LLC	0.03%	8.48K	561.38K	8.48K	+100.00%
Mar 31, 2024	FIRST TRUST ADVISORS LP	0.03%	8.25K	546.02K	8.25K	+100.00%
Mar 31, 2024	BLACKROCK INC.	7.19%	2.17M	143.39M	129.22K	+6.34%
Mar 31, 2024	EVENTIDE ASSET MANAGEMENT, LLC	2.26%	680K	45.02M	100K	+17.24%
Mar 31, 2024	CANDRIAM S.C.A.	2.16%	652K	43.16M	-167.06K	-20.40%
Mar 31, 2024	HOLOCENE ADVISORS, LP	2.12%	637.98K	42.23M	637.98K	+100.00%
Mar 31, 2024	JEFFERIES FINANCIAL GROUP INC.	2.1%	633.67K	41.95M	617.77K	+3,885.35%
Mar 31, 2024	FRANKLIN RESOURCES INC	2.1%	632.05K	41.84M	-67.38K	-9.63%
Mar 31, 2024	GRANAHAN INVESTMENT MANAGEMENT, LLC	0.49%	149.01K	9.86M	149.01K	+100.00%
Mar 31, 2024	UBS GROUP AG	0.41%	124.19K	8.22M	-57.2K	-31.54%
Mar 31, 2024	CITIGROUP INC	0.39%	117.46K	7.78M	-51.94K	-30.66%
Mar 31, 2024	WCM INVESTMENT MANAGEMENT, LLC	0.39%	117.03K	7.75M	-37.63K	-24.33%
Mar 31, 2024	NUVEEN ASSET MANAGEMENT, LLC	0.34%	101.24K	6.7M	25.64K	+33.92%
Mar 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	1.98%	595.85K	39.45M	85.64K	+16.78%
Mar 31, 2024	REDMILE GROUP, LLC	1.83%	552.51K	36.58M	552.51K	+100.00%
Mar 31, 2024	CITADEL ADVISORS LLC	1.49%	450.28K	29.81M	-309.89K	-40.77%
Mar 31, 2024	OPALEYE MANAGEMENT INC.	1.22%	367.5K	24.33M	10K	+2.80%
Mar 31, 2024	PARKMAN HEALTHCARE PARTNERS LLC	0.59%	178.34K	11.81M	-182.13K	-50.53%
Mar 31, 2024	BLUE OWL CAPITAL HOLDINGS LP	0.57%	172.63K	11.43M	-180K	-51.04%
Mar 31, 2024	BANK OF AMERICA CORP /DE/	0.57%	172.48K	11.42M	-20.97K	-10.84%
Mar 31, 2024	DIMENSIONAL FUND ADVISORS LP	0.55%	165.41K	10.95M	-5.45K	-3.19%
Mar 31, 2024	BANK OF NEW YORK MELLON CORP	0.33%	99.63K	6.6M	5.13K	+5.43%
Mar 31, 2024	READYSTATE ASSET MANAGEMENT LP	0.31%	94.37K	6.25M	94.37K	+100.00%
Mar 31, 2024	ALLIANCEBERNSTEIN L.P.	0.3%	91.86K	6.08M	70.74K	+334.93%
Mar 31, 2024	INVESCO LTD.	0.29%	88.68K	5.87M	78.7K	+788.61%
Mar 31, 2024	ALKEON CAPITAL MANAGEMENT LLC	5.31%	1.6M	105.85M	100K	+6.67%
Mar 31, 2024	STATE STREET CORP	5.19%	1.56M	103.46M	508.53K	+48.23%
Mar 31, 2024	VANGUARD GROUP INC	5.13%	1.55M	102.33M	113.56K	+7.93%
Mar 31, 2024	DARWIN GLOBAL MANAGEMENT, LTD.	4.77%	1.44M	95.06M	375.52K	+35.41%
Mar 31, 2024	ORBIMED ADVISORS LLC	4.21%	1.27M	83.99M	0	0
Mar 31, 2024	PRICE T ROWE ASSOCIATES INC /MD/	4.04%	1.22M	80.67M	176.8K	+16.97%
Mar 31, 2024	POINT72 ASSET MANAGEMENT, L.P.	3.23%	971.88K	64.34M	890.65K	+1,096.46%
Mar 31, 2024	TCG CROSSOVER MANAGEMENT, LLC	2.92%	879.34K	58.21M	879.34K	+100.00%
Mar 31, 2024	WOODLINE PARTNERS LP	2.53%	761.7K	50.42M	177.91K	+30.47%
Mar 31, 2024	ADAR1 CAPITAL MANAGEMENT, LLC	1.12%	338.24K	22.39M	-350.07K	-50.86%
Mar 31, 2024	MILLENNIUM MANAGEMENT LLC	1.12%	337.66K	22.35M	-184.47K	-35.33%
Mar 31, 2024	NANTAHALA CAPITAL MANAGEMENT, LLC	0.98%	294K	19.46M	-16.14K	-5.21%
Mar 31, 2024	MORGAN STANLEY	0.96%	289.16K	19.14M	-636.23K	-68.75%
Mar 31, 2024	SOLEUS CAPITAL MANAGEMENT, L.P.	0.91%	273.6K	18.11M	273.6K	+100.00%
Mar 31, 2024	MARSHALL WACE, LLP	0.91%	272.97K	18.07M	223.5K	+451.77%
Mar 31, 2024	GOLDMAN SACHS GROUP INC	0.86%	258.37K	17.1M	53.27K	+25.97%
Mar 31, 2024	AMERICAN CENTURY COMPANIES INC	0.79%	238.81K	15.81M	24.21K	+11.28%
Mar 31, 2024	NORTHERN TRUST CORP	0.78%	235.64K	15.6M	18.79K	+8.67%
Mar 31, 2024	AVIDITY PARTNERS MANAGEMENT LP	0.7%	209.7K	13.88M	209.7K	+100.00%
Mar 31, 2024	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.69%	207.76K	13.75M	26.18K	+14.42%
Mar 31, 2024	CIBC WORLD MARKETS CORP	0.66%	200K	13.24M	200K	+100.00%
Mar 31, 2024	ADAGE CAPITAL PARTNERS GP, L.L.C.	0.63%	190K	12.58M	190K	+100.00%
Mar 31, 2024	ECOR1 CAPITAL, LLC	0.62%	187.5K	12.41M	187.5K	+100.00%
Mar 31, 2024	DEUTSCHE BANK AG\	0.41%	124.07K	8.21M	-234.2K	-65.37%
Mar 31, 2024	RAFFERTY ASSET MANAGEMENT, LLC	0.4%	119.51K	7.91M	54.23K	+83.07%
Mar 31, 2024	BRAIDWELL LP	2.45%	737.38K	48.81M	-381.58K	-34.10%
Mar 31, 2024	FMR LLC	16.66%	5.02M	332.23M	1.14M	+29.54%
Dec 31, 2023	NANTAHALA CAPITAL MANAGEMENT, LLC	1.05%	310.14K	12.33M	-18.64K	-5.67%
Dec 31, 2023	BARCLAYS PLC	0.88%	259.76K	10.33M	210.25K	+424.65%
Dec 31, 2023	NORTHERN TRUST CORP	0.73%	216.85K	8.62M	3.95K	+1.85%
Dec 31, 2023	AMERICAN CENTURY COMPANIES INC	0.72%	214.6K	8.53M	523	+0.24%
Dec 31, 2023	GOLDMAN SACHS GROUP INC	0.69%	205.1K	8.15M	105.04K	+104.98%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0.65%	193.45K	7.69M	138.8K	+253.98%
Dec 31, 2023	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.61%	181.58K	7.22M	4.63K	+2.61%
Dec 31, 2023	UBS GROUP AG	0.61%	181.39K	7.21M	174.8K	+2,653.68%
Dec 31, 2023	DIMENSIONAL FUND ADVISORS LP	0.58%	170.85K	6.79M	-425	-0.25%
Dec 31, 2023	CITIGROUP INC	0.57%	169.39K	6.73M	71.28K	+72.66%
Dec 31, 2023	WCM INVESTMENT MANAGEMENT, LLC	0.52%	154.66K	6.35M	57.12K	+58.56%
Dec 31, 2023	SCHONFELD STRATEGIC ADVISORS LLC	0.32%	95.34K	3.79M	17.54K	+22.54%
Dec 31, 2023	RUSSELL INVESTMENTS GROUP, LTD.	0.32%	94.56K	3.76M	18.68K	+24.62%
Dec 31, 2023	BANK OF NEW YORK MELLON CORP	0.32%	94.5K	3.76M	-49.91K	-34.56%
Dec 31, 2023	POINT72 ASSET MANAGEMENT, L.P.	0.27%	81.23K	3.23M	-68.5K	-45.75%
Dec 31, 2023	NUVEEN ASSET MANAGEMENT, LLC	0.25%	75.6K	3.01M	4.58K	+6.45%
Dec 31, 2023		0.25%	74.65K	2.97M	74.65K	+100.00%
Dec 31, 2023	DAFNA CAPITAL MANAGEMENT LLC	0.25%	74.36K	2.96M	8.4K	+12.73%
Dec 31, 2023	RAFFERTY ASSET MANAGEMENT, LLC	0.22%	65.28K	2.6M	7.09K	+12.19%
Dec 31, 2023	JPMORGAN CHASE & CO	0.21%	62.64K	2.49M	9.58K	+18.04%
Dec 31, 2023	MARSHALL WACE, LLP	0.17%	49.47K	1.97M	49.47K	+100.00%
Dec 31, 2023	PLATINUM INVESTMENT MANAGEMENT LTD	0.16%	48.88K	1.94M	48.88K	+100.00%
Dec 31, 2023	SWISS NATIONAL BANK	0.14%	40.9K	1.63M	-4.7K	-10.31%
Dec 31, 2023	NORGES BANK	0.12%	35.7K	1.42M	35.7K	+100.00%
Dec 31, 2023	QUBE RESEARCH & TECHNOLOGIES LTD	0.12%	34.54K	1.37M	25.58K	+285.60%
Dec 31, 2023	VOYA INVESTMENT MANAGEMENT LLC	0.11%	33.64K	1.34M	-38.51K	-53.38%
Dec 31, 2023	RHUMBLINE ADVISERS	0.11%	31.66K	1.26M	-886	-2.72%
Dec 31, 2023	TWO SIGMA INVESTMENTS, LP	0.11%	31.57K	1.26M	31.57K	+100.00%
Dec 31, 2023	FMR LLC	13.06%	3.87M	154.04M	269.28K	+7.47%
Dec 31, 2023	BLACKROCK INC.	6.87%	2.04M	80.98M	169.44K	+9.07%
Dec 31, 2023	ALKEON CAPITAL MANAGEMENT LLC	5.05%	1.5M	59.6M	-177.62K	-10.59%
Dec 31, 2023	VANGUARD GROUP INC	4.83%	1.43M	56.94M	25.76K	+1.83%
Dec 31, 2023	ORBIMED ADVISORS LLC	4.28%	1.27M	50.44M	-246K	-16.24%
Dec 31, 2023	BRAIDWELL LP	3.77%	1.12M	44.49M	-238.35K	-17.56%
Dec 31, 2023	DARWIN GLOBAL MANAGEMENT, LTD.	3.57%	1.06M	42.16M	1.06M	+100.00%
Dec 31, 2023	STATE STREET CORP	3.55%	1.05M	41.92M	152.37K	+16.89%
Dec 31, 2023	PRICE T ROWE ASSOCIATES INC /MD/	3.51%	1.04M	41.42M	-225.53K	-17.80%
Dec 31, 2023	MORGAN STANLEY	3.12%	925.39K	36.79M	476.69K	+106.24%
Dec 31, 2023	CANDRIAM S.C.A.	2.76%	819.06K	32.57M	78K	+10.53%
Dec 31, 2023	CITADEL ADVISORS LLC	2.56%	760.17K	30.22M	355.02K	+87.63%
Dec 31, 2023	FRANKLIN RESOURCES INC	2.36%	699.43K	27.81M	226.67K	+47.95%
Dec 31, 2023	WOODLINE PARTNERS LP	1.97%	583.79K	23.21M	-134.63K	-18.74%
Dec 31, 2023	EVENTIDE ASSET MANAGEMENT, LLC	1.96%	580K	23.06M	0	0
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	1.76%	522.13K	20.76M	318.07K	+155.87%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	1.72%	510.21K	20.29M	24.21K	+4.98%
Dec 31, 2023	PARKMAN HEALTHCARE PARTNERS LLC	1.22%	360.47K	14.33M	61.99K	+20.77%
Dec 31, 2023	DEUTSCHE BANK AG\	1.21%	358.28K	14.25M	345.7K	+2,749.79%
Dec 31, 2023	OPALEYE MANAGEMENT INC.	1.21%	357.5K	14.21M	-2.9K	-0.80%
Dec 31, 2023	BLUE OWL CAPITAL HOLDINGS LP	1.19%	352.63K	14.02M	352.63K	+100.00%

KROS Insiders

Insiders	Designation	Shares Held
ADAR1 CAPITAL MANAGEMENT, LLC	10 percent owner	743.56K
KNOWLES JULIUS	director	232.73K
ORBIMED ADVISORS LLC	director	119.52K
GORDON CARL L	director	119.52K
LACHEY JENNIFER	Chief Scientific Officer	95.1K
REGNANTE KEITH	CHIEF FINANCIAL OFFICER	0
ROVALDI CHRISTOPHER	Chief Operating Officer	0

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Apr 09, 2025	ADAR1 CAPITAL MANAGEMENT, LLC	PURCHASE	9.40	16.37K	153.75K	743.56K
Aug 13, 2024	ORBIMED ADVISORS LLC	SALE	44.01	29.4K	1.29M	119.52K
Aug 13, 2024	GORDON CARL L	SALE	44.01	29.4K	1.29M	119.52K
Jan 04, 2024	REGNANTE KEITH	SALE	45.29	40K	1.81M	0
Nov 04, 2023	REGNANTE KEITH	SALE	45.29	40K	1.81M	0
Jun 09, 2023	REGNANTE KEITH	SALE	47.25	2.58K	121.86K	0
Jun 08, 2023	REGNANTE KEITH	SALE	48.65	2.7K	131.31K	0
Jul 15, 2022	LACHEY JENNIFER	SALE	30.00	46.03K	1.38M	95.1K
Jul 13, 2022	LACHEY JENNIFER	SALE	30.00	1.92K	57.48K	95.1K
May 11, 2022	LACHEY JENNIFER	SALE	42.49	944	40.11K	86.66K
Apr 11, 2022	LACHEY JENNIFER	SALE	64.15	559	35.86K	85.7K
Apr 06, 2022	ROVALDI CHRISTOPHER	SALE	65.00	1.73K	112.32K	0
Apr 04, 2022	LACHEY JENNIFER	SALE	60.00	7.95K	477K	85.7K
Apr 01, 2022	ROVALDI CHRISTOPHER	SALE	58.83	105	6.18K	0
Mar 11, 2022	LACHEY JENNIFER	SALE	54.54	875	47.72K	85.7K
Feb 11, 2022	LACHEY JENNIFER	SALE	53.10	199	10.57K	85.7K
Jan 11, 2022	LACHEY JENNIFER	SALE	54.45	1.13K	61.75K	85.7K
Jan 05, 2022	KNOWLES JULIUS	SALE	59.00	435	25.67K	232.73K
Jan 05, 2022	LACHEY JENNIFER	SALE	60.00	2.65K	159K	85.7K
Jan 04, 2022	KNOWLES JULIUS	SALE	58.86	2.2K	129.2K	234.32K
Jan 03, 2022	KNOWLES JULIUS	SALE	59.40	162	9.62K	242.24K
Dec 15, 2021	LACHEY JENNIFER	SALE	50.00	735	36.75K	85.7K
Dec 13, 2021	LACHEY JENNIFER	SALE	53.64	7	375.48	85.7K
Dec 02, 2021	KNOWLES JULIUS	SALE	54.67	90	4.92K	251.54K
Dec 01, 2021	KNOWLES JULIUS	SALE	56.27	1.02K	57.45K	261.54K
Nov 11, 2021	LACHEY JENNIFER	SALE	59.78	4.56K	272.66K	85.7K
Nov 10, 2021	LACHEY JENNIFER	SALE	60.00	15.9K	954K	85.7K
Nov 04, 2021	LACHEY JENNIFER	SALE	50.00	10.6K	530K	85.7K
Nov 03, 2021	KNOWLES JULIUS	SALE	42.45	2.35K	99.59K	270.35K
Nov 02, 2021	KNOWLES JULIUS	SALE	43.04	991	42.65K	276.65K
Nov 01, 2021	KNOWLES JULIUS	SALE	42.43	4.8K	203.54K	279.76K
Oct 20, 2021	KNOWLES JULIUS	SALE	38.31	1.46K	56.05K	289.16K
Oct 19, 2021	KNOWLES JULIUS	SALE	38.49	460	17.71K	290.77K
Oct 18, 2021	KNOWLES JULIUS	SALE	38.46	92	3.54K	433.3K
Oct 15, 2021	KNOWLES JULIUS	SALE	40.60	92	3.74K	441.65K
Oct 14, 2021	KNOWLES JULIUS	SALE	40.13	2.65K	106.46K	446.61K
Apr 13, 2020	KNOWLES JULIUS	PURCHASE	20.98	1.19K	24.99K	1.19K

Insider Transaction Summary (6 Months)

SHARESTRANS

PURCHASE16.37K1

SALES00

NET SHARES16.37K1

SHARES HELD743.56K1

% NET SHARES-97.8%0%

KROS Stock Ownership Breakdown

Keros Therapeutics, Inc.

KROS Stock Outstanding Shares

Market Insider KROS

Institutional Ownership

KROS Insiders

Buying/Selling by Insiders

Insider Transaction Summary (6 Months)

Frequently Asked Questions

KROS Stock Outstanding Shares

Market Insider KROS

Institutional Ownership

KROS Insiders

Buying/Selling by Insiders

Insider Transaction Summary (6 Months)

Frequently Asked Questions