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Who

Richard Brudnick

Director

Company insider

Files Form 4 as: Director, Scholar Rock Holding; Chief Business Officer, Prime Medicine; Director, VolitionRX; Officer, Codiak BioSciences; EVP, Business Development, Bioverativ.

In numbers

Trades disclosed
61
Buys
1
Sells
1
Bought
$24K
Sold
$181K
Companies
5
Companies where not an officer
2
First trade
14 Feb 2017
Last trade
4 Jun 2026
Last filed
8 Jun 2026

Companies traded

Where they are an officer
PRME Prime MedicineOfficer · Biotechnology · last 20 May 20251 buy · 0 sells
Codiak BioSciencesOfficer · last 16 Feb 20220 buys · 0 sells
BioverativOfficer · last 8 Mar 20180 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
SRRK Scholar Rock HoldingDirector · Biotechnology · last 4 Jun 20260 buys · 1 sell
VNRX VolitionRXDirector · Diagnostics & Labs · last 12 Jan 20230 buys · 0 sells

Activity over time

1 May 2025 – 1 Oct 2026
101May 25Sep 25Feb 26Jun 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
4 Jun 2026filed 8 Jun 2026SRRK Scholar Rock HoldingBiotechnologySEC FORM 4 Code A—6,839 at $0.00filing
4 Jun 2026filed 8 Jun 2026SRRK Scholar Rock Holdingoption or derivative · BiotechnologySEC FORM 4 Code A—4,310 at $0.00filing
4 Jun 2026filed 8 Jun 2026SRRK Scholar Rock Holdingoption or derivative · BiotechnologySEC FORM 4 Code A—4,310 at $0.00filing
4 Jun 2026filed 8 Jun 2026SRRK Scholar Rock HoldingBiotechnologySEC FORM 4 Code A—6,839 at $0.00filing
29 May 2025filed 30 May 2025SRRK Scholar Rock HoldingBiotechnologySEC FORM 4 Sold$139K4,675 at $29.63filing
29 May 2025filed 30 May 2025SRRK Scholar Rock HoldingBiotechnologySEC FORM 4 Sold$42K1,400 at $30.00filing
22 May 2025filed 23 May 2025SRRK Scholar Rock Holdingoption or derivative · BiotechnologySEC FORM 4 Code A—9,206 at $0.00filing
22 May 2025filed 23 May 2025SRRK Scholar Rock HoldingBiotechnologySEC FORM 4 Code A—7,632 at $0.00filing
20 May 2025filed 22 May 2025PRME Prime MedicineBiotechnologySEC FORM 4 Bought$24K20,000 at $1.19filing
27 Feb 2025filed 3 Mar 2025PRME Prime Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—225,000 at $0.00filing
5 Dec 2024filed 9 Dec 2024PRME Prime Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—19,300 at $0.00filing
27 Jun 2024filed 1 Jul 2024SRRK Scholar Rock Holdingoption or derivative · BiotechnologySEC FORM 4 Code A—18,000 at $0.00filing
27 Jun 2024filed 1 Jul 2024SRRK Scholar Rock HoldingBiotechnologySEC FORM 4 Code A—13,500 at $0.00filing
17 May 2024filed 21 May 2024PRME Prime Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—19,300 at $0.00filing
21 Feb 2024filed 23 Feb 2024PRME Prime Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—135,747 at $0.00filing
6 Apr 2023filed 10 Apr 2023SRRK Scholar Rock Holdingoption or derivative · BiotechnologySEC FORM 4 Code A—56,000 at $0.00filing
31 Mar 2023filed 4 Apr 2023PRME Prime Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—135,747 at $0.00filing
12 Jan 2023filed 13 Jan 2023VNRX VolitionRXDiagnostics & LabsSEC FORM 4 Code A—5,625 at $0.00filing
13 Oct 2022filed 14 Oct 2022VNRX VolitionRXDiagnostics & LabsSEC FORM 4 Code A—2,625 at $0.00filing
23 Jun 2022filed 24 Jun 2022VNRX VolitionRXoption or derivative · Diagnostics & LabsSEC FORM 4 Code A—5,613 at $0.00filing

News

Scholar Rock Resubmits Marketing Authorisation Application For ApitegromabSRRK · rttnews.com · 8 Oct 2026

0 headlines in the last 90 days name Richard Brudnick; 1 article from the last 14 days about the 2 companies they traded most, at most three about any one of them.

Sectors

Health Care2

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

Related people

Michael Aaron KellyDirector · Director at Prime Medicine, filing Form 4 there in the last year
Kaye I. Foster-CheekDirector · Director at Prime Medicine, filing Form 4 there in the last year
David P. SchenkeinDirector · Director at Prime Medicine, filing Form 4 there in the last year
Jeffrey D. MarrazzoDirector · Director at Prime Medicine, filing Form 4 there in the last year
Robert NelsenDirector and 10% owner · Director and 10% owner at Prime Medicine, filing Form 4 there in the last year