NASDAQ: KROS
Keros Therapeutics Inc Stock Ownership - Who owns Keros Therapeutics?

Insider buying vs selling

Have Keros Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jean Jacques BienaimeDirector2026-07-151,000$10.61
$10.61kBuy
Jean Jacques BienaimeDirector2026-06-151,000$10.19
$10.19kBuy
Charles W. NewtonDirector2026-06-11550$10.04
$5.52kSell
Julius KnowlesDirector2026-06-042,625$10.73
$28.17kSell
Nima FarzanDirector2026-06-042,625$10.73
$28.17kSell
Alpna SethDirector2026-06-042,625$10.72
$28.14kSell
Jean Jacques BienaimeDirector2026-05-151,000$10.58
$10.58kBuy
Jean Jacques BienaimeDirector2026-04-151,000$11.70
$11.70kBuy
Jasbir SeehraCHIEF EXECUTIVE OFFICER2026-04-0255,000$0.30
$16.50kBuy
Jean Jacques BienaimeDirector2026-03-092,000$11.21
$22.42kBuy

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Net Insider Buy/Sell (L12M) Ownership

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KROS Shareholders

What type of owners hold Keros Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc12.16%2,411,793$25.78MInstitution
Alon Lazarus10.27%2,036,140$21.77MInsider
Arkin Bio Ventures Limited Partnership10.15%2,013,102$21.52MInsider
Nantahala Capital Management LLC6.86%1,360,419$14.54MInstitution
Pontifax Management 4 GP 2015 Ltd6.24%1,236,912$13.22MInsider
Carl L. Gordon5.90%1,170,119$12.51MInsider
Orbimed Advisors LLC5.88%1,164,869$12.45MInsider
Vanguard Capital Management LLC4.19%831,421$8.89MInstitution
Orbimed Advisors LLC3.83%759,155$8.12MInstitution
Qube Research Technologies Ltd3.66%724,926$7.75MInstitution

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KROS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KROS67.05%32.95%Net SellingNet Selling
IMUX80.09%19.91%
ANTX49.55%50.45%Net SellingNet Selling
TNXP24.03%75.97%Net BuyingNet Buying
CLLS14.10%0.00%

Keros Therapeutics Stock Ownership FAQ

Who owns Keros Therapeutics?

Keros Therapeutics (NASDAQ: KROS) is owned by 93.79% institutional shareholders, 46.08% Keros Therapeutics insiders, and 0.00% retail investors. Alon Lazarus is the largest individual Keros Therapeutics shareholder, owning 2.04M shares representing 10.27% of the company. Alon Lazarus's Keros Therapeutics shares are currently valued at $21.66M.

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