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CIK 0001703647 · Non-accelerated filer<br>Smaller reporting company

Korro Bio, Inc.

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Ticker
KRRO
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
472324450
Phone
617-468-1999
Business address
60 FIRST STREET, 2ND FLOOR, SUITE 250, CAMBRIDGE, MA, 02141
Former names
Frequency Therapeutics, Inc.
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$973,609
in 1 filing, $974K under 10b5-1 plans

Net −$973,609. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. FORMELA JEAN FRANCOIS −$974K Director sold 35% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-11-12 FORMELA JEAN FRANCOIS Director Sale 10b5-1 −33,175 $14.30 $474K 585,409
2026-11-12 FORMELA JEAN FRANCOIS Director Sale 10b5-1 −6,870 $14.30 $98K 121,219
2026-11-11 FORMELA JEAN FRANCOIS Director Sale 10b5-1 −19,042 $15.00 $286K 621,568
2026-11-11 FORMELA JEAN FRANCOIS Director Sale 10b5-1 −2,984 $15.60 $47K 618,584
2026-11-11 FORMELA JEAN FRANCOIS Director Sale 10b5-1 −3,944 $15.00 $59K 128,706
2026-11-11 FORMELA JEAN FRANCOIS Director Sale 10b5-1 −617 $15.60 $10K 128,089

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