Name: KRRO Insider Trading Activity
Creator: Tracefour
License: https://www.usa.gov/government-works
Keywords: KRRO, insider trading, SEC Form 4, insider transactions

Question 1

How many SEC Form 4 insider filings does KRRO have?

Accepted Answer

Korro Bio, Inc. (KRRO) has 34 SEC Form 4 filings (49 transaction rows) in the rolling 365-day window, disclosed by 16 distinct insiders. Most recent filing: Aug 28, 2026.

Question 2

When was the most recent SEC Form 4 filing for KRRO?

Accepted Answer

The most recent Form 4 filing for KRRO on Tracefour is dated Aug 28, 2026.

Question 3

Who is the most active insider at KRRO?

Accepted Answer

The most active SEC Form 4 filer at KRRO in the rolling window is Director FORMELA JEAN FRANCOIS, with 9 filings.

Question 4

What is the net insider flow at KRRO over the last 6 months?

Accepted Answer

Over the trailing 180 days, insiders at KRRO have net bought $15.9M based on SEC Form 4 disclosures.

Question 5

What was the largest insider purchase at KRRO?

Accepted Answer

The largest single insider open-market purchase at KRRO in the rolling window was $2.3M by 10% Owner BASKETT FOREST on 2026-03-10.

Question 6

What is the total insider buy and sell value at KRRO in the current window?

Accepted Answer

Inside the rolling window, insiders at KRRO bought $20.8M and sold $4.9M based on SEC Form 4 filings.

Question 7

Can I get alerts for KRRO insider trading?

Accepted Answer

Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Korro Bio, Inc. (KRRO). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.

						Source
FORMELA JEAN FRANCOIS	Director	Sale	300	$4K	Aug 28	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	28,468	$399K	Aug 21	SEC ↗
Lynx1 Capital Management LP	10% Owner	Purchase	5,222	$60K	Aug 13	SEC ↗
Lynx1 Capital Management LP	10% Owner	Purchase	1,462	$19K	Aug 13	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	2,143	$30K	Aug 13	SEC ↗
Aiyar Ram	President and CEO	Sale	5,802	$63K	Aug 5	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	100,700	$1.4M	Jul 7	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	9,323	$130K	Jul 7	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	3,962	$55K	Jun 25	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	119,005	$1.7M	Jun 25	SEC ↗
FORMELA JEAN FRANCOIS	Director	Sale	48,438	$707K	Jun 25	SEC ↗
Chappell ToddFirst filing	Chief Operating Officer	Sale	3,168	$34K	Jun 17	SEC ↗
Dolan OliverFirst filing	Senior Vice President, Finance	Sale	3,383	$37K	Jun 17	SEC ↗
Vincent Loic AFirst filing	Chief Scientific Officer	Sale	3,418	$37K	Jun 17	SEC ↗
Cerio JeffreyFirst filing	General Counsel	Sale	6,609	$72K	Jun 17	SEC ↗
Aiyar RamFirst filing	President and CEO	Sale	15,152	$197K	Jun 2	SEC ↗
FORMELA JEAN FRANCOISFirst filing	Director	Sale	2,860	$40K	Jun 1	SEC ↗
Lynx1 Capital Management LPFirst in 3 months	10% Owner	Purchase	520	$6K	Apr 2	SEC ↗
BASKETT FOREST	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
Florence Anthony A. Jr.	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
Walker Paul Edward	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
SANDELL SCOTT D	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
Mathers Edward T	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
Chang Carmen	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
Yang Rick	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
New Enterprise Associates 17, L.P.	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗
Makhzoumi Mohamad	10% Owner	Purchase	207,100	$2.3M	Mar 12	SEC ↗

KRRO

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