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Who

Katharine Knobil

Director

Company insider

Files Form 4 as: Director, Korro Bio; Director, Marker Therapeutics; Director, Pliant Therapeutics; Director, Arena Pharmaceuticals; Chief Medical Officer, Kaleido Biosciences.

Every Form 4 they filed

In numbers

Trades disclosed
30
Buys
0
Sells
0
Bought
$0
Sold
$0
Companies
5
Companies where not an officer
4
First trade
15 Nov 2019
Last trade
10 Jun 2026
Last filed
11 Jun 2026

Companies traded

Where they are an officer
Kaleido BiosciencesOfficer · last 15 Oct 20200 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
KRRO Korro BioDirector · Biotechnology · last 10 Jun 20260 buys · 0 sells
MRKR Marker TherapeuticsDirector · Biotechnology · last 17 Nov 20250 buys · 0 sells
PLRX Pliant TherapeuticsDirector · Biotechnology · last 5 Jun 20250 buys · 0 sells
Arena PharmaceuticalsDirector · last 11 Mar 20220 buys · 0 sells

Activity over time

Not enough dated trades to draw.

Every trade

TradedCompanyWhatAmount
10 Jun 2026filed 11 Jun 2026KRRO Korro Biooption or derivative · BiotechnologySEC FORM 4 Code A—14,677 at $0.00filing
10 Jun 2026filed 11 Jun 2026KRRO Korro Biooption or derivative · BiotechnologySEC FORM 4 Code A—14,677 at $0.00filing
17 Nov 2025filed 19 Nov 2025MRKR Marker Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—84,411 at $0.00filing
17 Nov 2025filed 19 Nov 2025MRKR Marker Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—137,330 at $0.00filing
11 Jun 2025filed 12 Jun 2025KRRO Korro Biooption or derivative · BiotechnologySEC FORM 4 Code A—6,010 at $0.00filing
5 Jun 2025filed 9 Jun 2025PLRX Pliant Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—30,000 at $0.00filing
12 Feb 2025filed 14 Feb 2025MRKR Marker Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—30,000 at $0.00filing
26 Aug 2024filed 28 Aug 2024KRRO Korro Biooption or derivative · BiotechnologySEC FORM 4 Code A—9,041 at $0.00filing
13 Jun 2024filed 17 Jun 2024PLRX Pliant Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—26,764 at $0.00filing
7 Jun 2023filed 8 Jun 2023PLRX Pliant Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—14,000 at $0.00filing
6 Jun 2023filed 8 Jun 2023MRKR Marker Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—8,000 at $0.00filing
14 Sep 2022filed 16 Sep 2022PLRX Pliant Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—30,000 at $0.00filing
24 May 2022filed 26 May 2022MRKR Marker Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—80,000 at $0.00filing
11 Mar 2022filed 11 Mar 2022Arena Pharmaceuticalsoption or derivativeSEC FORM 4 Code D—2,500filing
11 Mar 2022filed 11 Mar 2022Arena Pharmaceuticalsoption or derivativeSEC FORM 4 Code D—5,000filing
11 Mar 2022filed 11 Mar 2022Arena Pharmaceuticalsoption or derivativeSEC FORM 4 Code D—7,202filing
11 Mar 2022filed 11 Mar 2022Arena PharmaceuticalsSEC FORM 4 Code J—2,939filing
11 Mar 2022filed 11 Mar 2022Arena PharmaceuticalsSEC FORM 4 Code J—3,882filing
8 Dec 2021filed 9 Dec 2021MRKR Marker Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—125,000 at $0.00filing
11 Jun 2021filed 15 Jun 2021Arena PharmaceuticalsSEC FORM 4 Code A—3,067 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

No trade we could place in a sector.

Related people

Nobody else traded the same names lately.