Keros Therapeutics, Inc.

KROS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001664710

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateInsiderTransactionSharesAvg priceValueShares afterHolding changeFiling
Aug 20, 20264:10 PM ETAug 18, 2026Tanini AnnitaCorp. Controller & VP, FinanceSSaleCommon Stock−1.22K$10.29−$12.59K45.14K−2.6%SEC
Aug 20, 20264:10 PM ETAug 18, 2026Lerner Lorena RaquelChief Scientific OfficerSSaleCommon Stock−3.57K$10.29−$36.71K27.56K−11.5%SEC
Aug 20, 20264:10 PM ETAug 18, 2026Cho EstherChief Legal OfficerSSaleCommon Stock−4.49K$10.29−$46.15K35.77K−11.1%SEC
Aug 20, 20264:10 PM ETAug 18, 2026Newton Charles W.DirectorSSaleCommon Stock−551$10.30−$5.68K12.11K−4.4%SEC10b5-1
Aug 19, 20264:10 PM ETAug 17, 2026BIENAIME JEAN JACQUESDirectorPPurchaseCommon Stock+1K$10.27+$10.27K19.59K+5.4%SEC10b5-1
Jul 17, 20264:10 PM ETJul 15, 2026BIENAIME JEAN JACQUESDirectorPPurchaseCommon Stock+1K$10.61+$10.61K18.59K+5.7%SEC10b5-1
Jun 17, 2026Jun 15, 2026BIENAIME JEAN JACQUESDirectorPPurchaseCommon Stock+1K$10.19+$10.19K17.59K+6.0%SEC10b5-1
Jun 15, 2026Jun 11, 2026Newton Charles W.DirectorSSaleCommon Stock−550$10.04−$5.52K12.67K−4.2%SEC10b5-1
Jun 8, 2026Jun 4, 2026Knowles JuliusDirectorSSaleCommon Stock−2.63K$10.73−$28.17K10.96K−19.3%SEC10b5-1
Jun 8, 2026Jun 4, 2026Farzan NimaDirectorSSaleCommon Stock−2.63K$10.73−$28.17K9.77K−21.2%SEC10b5-1
Jun 5, 2026Jun 4, 2026Seth AlpnaDirectorSSaleCommon Stock−2.63K$10.72−$28.14K9.77K−21.2%SEC10b5-1
May 19, 2026May 15, 2026BIENAIME JEAN JACQUESDirectorPPurchaseCommon Stock+1K$10.58+$10.58K9.45K+11.8%SEC10b5-1
Apr 17, 2026Apr 15, 2026BIENAIME JEAN JACQUESDirectorPPurchaseCommon Stock+1K$11.70+$11.7K8.45K+13.4%SEC10b5-1
Mar 11, 2026Mar 9, 2026BIENAIME JEAN JACQUESDirectorPPurchaseCommon Stock+2K$11.21+$22.42K7.45K+36.7%SEC10b5-1
Feb 20, 2026Feb 18, 2026Cho EstherSVP, General CounselSSaleCommon Stock−4.75K$16.35−$77.58K39.76K−10.7%SEC
Feb 20, 2026Feb 18, 2026Lerner Lorena RaquelChief Science OfficerSSaleCommon Stock−3.87K$16.35−$63.32K31.13K−11.1%SEC
Feb 20, 2026Feb 19, 2026Seehra JasbirCHIEF EXECUTIVE OFFICERSSaleCommon Stock−7.02K$16.17−$113.43K385.71K−1.8%SEC
Feb 20, 2026Feb 18, 2026Regnante KeithCHIEF FINANCIAL OFFICERSSaleCommon Stock−4.74K$16.35−$77.48K39.26K−10.8%SEC
Oct 17, 20255:53 PM ETOct 15, 2025Kariv Tomer and 7 othersDirector, 10% OwnerSSaleCommon Stock, $0.0001 par value per share−4.79M$17.75−$84.98M0−100.0%SEC
Oct 15, 20251:24 PM ETOct 15, 2025ADAR1 Partners, LP and 3 others10% OwnerSSaleCommon Stock−5.39M$17.75−$95.66M0−100.0%SEC
Apr 11, 20259:57 PM ETApr 9, 2025ADAR1 Partners, LP and 3 others10% OwnerPPurchaseCommon Stock+934.26K$10.1305+$9.46M4.39M+27.0%SEC
Jan 24, 2025AmendedJan 4, 2024Regnante KeithCHIEF FINANCIAL OFFICERSSaleCommon Stock−40K$45.29−$1.81M0−100.0%SEC
Aug 15, 20245:01 PM ETAug 13, 2024ORBIMED ADVISORS LLC and 2 othersDirectorSSaleCommon Stock−250K$44.01−$11M119.52K−67.7%SEC
Aug 15, 2024Aug 13, 2024GORDON CARL LDirectorSSaleCommon Stock−250K$44.01−$11M119.52K−67.7%SEC
Jun 12, 2023Jun 8 – Jun 9, 2023Regnante KeithChief Financial OfficerSSaleCommon Stock−40K$46.606−$1.86M0−100.0%SEC10b5-1
Jan 20, 2023Apr 13, 2020Knowles JuliusDirectorPPurchaseCommon Stock+1.19K$20.98+$24.99K1.19KNew positionSEC
Jul 19, 20224:40 PM ETJul 15, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−46.03K$30.00−$1.38M95.1K−32.6%SEC
Jul 15, 20224:40 PM ETJul 13, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−1.92K$30.00−$57.48K95.1K−2.0%SEC
May 13, 20224:37 PM ETMay 11, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−5.3K$41.8962−$222.05K85.7K−5.8%SEC
Apr 13, 20224:36 PM ETApr 11, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−5.3K$62.7744−$332.7K85.7K−5.8%SEC
Apr 8, 2022Apr 6, 2022Rovaldi ChristopherChief Operating OfficerSSaleCommon Stock−1.73K$65.00−$112.32K0−100.0%SEC
Apr 6, 20224:49 PM ETApr 4, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−7.95K$60.00−$477K85.7K−8.5%SEC
Apr 5, 2022Apr 1, 2022Rovaldi ChristopherChief Operating OfficerSSaleCommon Stock−864$57.4943−$49.68K0−100.0%SEC
Mar 15, 20224:37 PM ETMar 11, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−2.65K$53.3769−$141.45K85.7K−3.0%SEC
Feb 15, 20224:26 PM ETFeb 11, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−2.65K$52.0622−$137.96K85.7K−3.0%SEC
Jan 13, 20224:39 PM ETJan 11, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−2.65K$53.7537−$142.45K85.7K−3.0%SEC
Jan 7, 20224:35 PM ETJan 5, 2022Lachey JenniferChief Scientific OfficerSSaleCommon Stock−2.65K$60.00−$159K85.7K−3.0%SEC
Jan 5, 2022Jan 3 – Jan 5, 2022Knowles JuliusDirectorSSaleCommon Stock−47.65K$57.8396−$2.76M232.73K−17.0%SEC
Dec 15, 20214:48 PM ETDec 13 – Dec 15, 2021Lachey JenniferChief Scientific OfficerSSaleCommon Stock−2.65K$50.3993−$133.56K85.7K−3.0%SEC
Dec 3, 2021Dec 1 – Dec 2, 2021Knowles JuliusDirectorSSaleCommon Stock−47.65K$54.0886−$2.58M251.54K−15.9%SEC
Nov 12, 20214:40 PM ETNov 10 – Nov 11, 2021Lachey JenniferChief Scientific OfficerSSaleCommon Stock−21.2K$59.9084−$1.27M85.7K−19.8%SEC
Nov 5, 20215:06 PM ETNov 4, 2021Lachey JenniferChief Scientific OfficerSSaleCommon Stock−10.6K$50.00−$530K85.7K−11.0%SEC
Nov 3, 2021Nov 1 – Nov 3, 2021Knowles JuliusDirectorSSaleCommon Stock−47.65K$42.1215−$2.01M270.35K−15.0%SEC
Oct 21, 2021Oct 19 – Oct 20, 2021Knowles JuliusDirectorSSaleCommon Stock−8.6K$38.1997−$328.44K289.16K−2.9%SEC
Oct 18, 2021Oct 14 – Oct 18, 2021Knowles JuliusDirectorSSaleCommon Stock−26.37K$38.5578−$1.02M292.55K−8.3%SEC
Oct 5, 2021Oct 1 – Oct 5, 2021Knowles JuliusDirectorSSaleCommon Stock−12.69K$40.1037−$508.75K302.96K−4.0%SEC
Sep 29, 2021Sep 27, 2021Knowles JuliusDirectorSSaleCommon Stock−95.3K$41.1744−$3.92M307.97K−23.6%SEC
Jul 6, 2021Jul 1 – Jul 2, 2021Knowles JuliusDirectorSSaleCommon Stock−47.65K$41.3068−$1.97M345.59K−12.1%SEC