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Who

Jean Francois Formela

Director

Company insider

Files Form 4 as: Director, Korro Bio; Director, ImageneBio; Director, Intellia Therapeutics; Director, Translate Bio; Director, Spero Therapeutics; Director and 10% owner, Egalet; Director and 10% owner, Oruka Therapeutics; Director and 10% owner, Horizon Pharma.

Every Form 4 they filed

In numbers

Trades disclosed
217
Buys
6
Sells
39
Bought
$17.3M
Sold
$250.1M
Companies
11
Companies where not an officer
11
First trade
1 Feb 2006
Last trade
14 Sep 2026
Last filed
15 Sep 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
KRRO Korro BioDirector · Biotechnology · last 14 Sep 20260 buys · 11 sells
IMA ImageneBioDirector · Biotechnology · last 7 Jun 20241 buy · 3 sells
NTLA Intellia TherapeuticsDirector · Genomics & Gene Editing · last 14 Jun 20220 buys · 18 sells
Translate BioDirector · last 14 Sep 20210 buys · 6 sells
SPRO Spero TherapeuticsDirector · Biotechnology · last 17 Aug 20211 buy · 0 sells
EgaletDirector, 10% owner · last 11 Feb 20141 buy · 0 sells
ORKA Oruka TherapeuticsDirector, 10% owner · Biotechnology · last 22 Oct 20120 buys · 1 sell
Horizon PharmaDirector, 10% owner · last 2 Mar 20122 buys · 0 sells
Achillion PharmaceuticalsDirector, 10% owner · last 14 Dec 20070 buys · 0 sells
Sgx PharmaceuticalsDirector, 10% owner · last 17 May 20071 buy · 0 sells
NxStage MedicalDirector, 10% owner · last 26 May 20060 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
40Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
14 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$450K31,888 at $14.12filing
14 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$93K6,602 at $14.12filing
14 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$450K31,888 at $14.12filing
14 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$93K6,602 at $14.12filing
11 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$118K8,450 at $13.99filing
11 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$24K1,750 at $13.99filing
11 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$118K8,450 at $13.99filing
11 Sep 2026filed 15 Sep 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$24K1,750 at $13.99filing
26 Aug 2026filed 28 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$3,476249 at $13.96filing
26 Aug 2026filed 28 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$71251 at $13.96filing
26 Aug 2026filed 28 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$3,476249 at $13.96filing
26 Aug 2026filed 28 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$71251 at $13.96filing
19 Aug 2026filed 21 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$330K23,584 at $14.00filing
19 Aug 2026filed 21 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$68K4,884 at $14.00filing
19 Aug 2026filed 21 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$330K23,584 at $14.00filing
19 Aug 2026filed 21 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$68K4,884 at $14.00filing
11 Aug 2026filed 13 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$25K1,775 at $13.96filing
11 Aug 2026filed 13 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$5,137368 at $13.96filing
11 Aug 2026filed 13 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$25K1,775 at $13.96filing
11 Aug 2026filed 13 Aug 2026KRRO Korro BioBiotechnologySEC FORM 4 Sold$5,137368 at $13.96filing

News

BioLineRx (NASDAQ:BLRX) and Korro Bio (NASDAQ:KRRO) Head to Head SurveyKRRO · dailypolitical.com · 14 Oct 2026Contrasting BioLineRx (NASDAQ:BLRX) & Korro Bio (NASDAQ:KRRO)KRRO · tickerreport.com · 14 Oct 2026

0 headlines in the last 90 days name Jean Francois Formela; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care35
Not placed10

Buys in green, sells in red, by the company’s sector.

Related people

Oliver DolanSenior Vice President, Finance · Senior Vice President, Finance at Korro Bio, filing Form 4 there in the last year
Lynx1 Capital Management LP10% owner · 10% owner at Korro Bio, filing Form 4 there in the last year
Ram AiyarPresident and CEO · President and CEO at Korro Bio, filing Form 4 there in the last year
Jeffrey CerioGeneral Counsel · General Counsel at Korro Bio, filing Form 4 there in the last year
Loic A. VincentChief Scientific Officer · Chief Scientific Officer at Korro Bio, filing Form 4 there in the last year
Paul T. QuinlanGeneral Counsel · Also traded ORKA in the last 90 days
Joana GoncalvesChief Medical Officer · Also traded ORKA in the last 90 days
Arjun AgarwalSenior Vice President, Finance · Also traded ORKA in the last 90 days