KRRO stock news · Korro Bio

Stories about Korro Bio (KRRO) from the last 90 days, each explained in plain English with whether the news reads good or bad for the company.

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Nov 14, 2026, 9:08 AM ET · Market
Korro Bio's Director Jean Francois Formela sold 66,632 shares for about $973,609, according to a recent filing.
Neutral
Korro Bio director Jean Francois Formela sold 66,632 shares worth about $973,609. The report gives no company update, so this does not change Korro Bio's outlook.
Nov 14, 2026, 9:07 AM ET · Deal
Korro Bio is giving a new employee the option to buy 1,000 shares at $14.41 each.
Neutral
Korro Bio granted a new hire an option for 1,000 shares at $14.41 each, vesting over 4 years. This single employee award does not change its outlook.
Oct 5, 2026, 4:18 PM ET · Market
Korro Bio, Inc.: Other Events (KRRO)
Good for KRRO
Korro Bio dosed the first participants in its KRRO-121 trial, moving the program into testing in people. This is a positive step, but the report gives no safety or treatment results.
Sep 18, 2026, 2:27 PM ET · Market
On Friday, 12 health care stocks changed a lot in price, with IM Cannabis jumping 246%.
Bad for KRRO
Korro Bio stock fell 14.92% to $10.04. The fall reduces the company's market value and signals weaker investor demand today.