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Who

George Bickerstaff

Director

Company insider

Files Form 4 as: Director, CareDx; Director, Innoviva; Director, Axovant Sciences; Director, Inovio Pharmaceuticals; Director, Ariad Pharmaceuticals; Director, Vion Pharmaceuticals; Director, BMP Sunstone.

In numbers

Trades disclosed
136
Buys
7
Sells
7
Bought
$829K
Sold
$5.6M
Companies
7
Companies where not an officer
7
First trade
28 Jun 2006
Last trade
5 Aug 2026
Last filed
6 Aug 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
CDNA CareDxDirector · Diagnostics & Labs · last 5 Aug 20260 buys · 7 sells
INVA InnovivaDirector · Pharmaceuticals · last 25 Apr 20224 buys · 0 sells
Axovant SciencesDirector · last 15 Apr 20192 buys · 0 sells
INO Inovio PharmaceuticalsDirector · Biotechnology · last 21 Mar 20180 buys · 0 sells
Ariad PharmaceuticalsDirector · last 16 Feb 20170 buys · 0 sells
Vion PharmaceuticalsDirector · last 11 Dec 20081 buy · 0 sells
BMP SunstoneDirector · last 28 Apr 20080 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
5 Aug 2026filed 6 Aug 2026CDNA CareDxDiagnostics & LabsSEC FORM 4 Sold$926K20,000 at $46.29filing
5 Aug 2026filed 6 Aug 2026CDNA CareDxDiagnostics & LabsSEC FORM 4 Sold$926K20,000 at $46.29filing
12 Jun 2026filed 16 Jun 2026CDNA CareDxDiagnostics & LabsSEC FORM 4 Code A—9,795 at $0.00filing
12 Jun 2026filed 16 Jun 2026CDNA CareDxDiagnostics & LabsSEC FORM 4 Code A—9,795 at $0.00filing
11 Sep 2025filed 12 Sep 2025CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—29,136 at $0.00filing
11 Sep 2025filed 12 Sep 2025CDNA CareDxDiagnostics & LabsSEC FORM 4 Code M$232K29,136 at $7.96filing
13 Jun 2025filed 17 Jun 2025CDNA CareDxDiagnostics & LabsSEC FORM 4 Code A—12,103 at $0.00filing
10 Mar 2025filed 12 Mar 2025CDNA CareDxDiagnostics & LabsSEC FORM 4 Sold$367K20,000 at $18.36filing
1 Nov 2024filed 5 Nov 2024CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—5,255 at $0.00filing
1 Nov 2024filed 5 Nov 2024CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—2,226 at $0.00filing
1 Nov 2024filed 5 Nov 2024CDNA CareDxDiagnostics & LabsSEC FORM 4 Code M$31K5,255 at $5.85filing
1 Nov 2024filed 5 Nov 2024CDNA CareDxDiagnostics & LabsSEC FORM 4 Code M$12K2,226 at $5.49filing
14 Jun 2024filed 20 Jun 2024CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code A—16,048 at $0.00filing
14 Jun 2024filed 18 Jun 2024CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code A—16,048 at $0.00filing
14 Jun 2024filed 18 Jun 2024CDNA CareDxDiagnostics & LabsSEC FORM 4 Code A—10,570 at $0.00filing
14 May 2024filed 16 May 2024CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—5,255 at $0.00filing
14 May 2024filed 16 May 2024CDNA CareDxDiagnostics & LabsSEC FORM 4 Code M$53K5,255 at $10.00filing
11 Aug 2023filed 11 Aug 2023CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—5,255 at $0.00filing
11 Aug 2023filed 11 Aug 2023CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—9,745 at $0.00filing
11 Aug 2023filed 11 Aug 2023CDNA CareDxoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—4,453 at $0.00filing

News

Analyzing CollPlant Biotechnologies (NASDAQ:CLGN) and CareDx (NASDAQ:CDNA)CDNA · themarketsdaily.com · 10 Oct 2026

0 headlines in the last 90 days name George Bickerstaff; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care11
Not placed3

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

Related people

John Walter Hanna Jr.President and CEO · President and CEO at CareDx, filing Form 4 there in the last year
Jessica MengChief Commercial Officer · Chief Commercial Officer at CareDx, filing Form 4 there in the last year
Jeffrey Adam NovackSecretary and General Counsel · Secretary and General Counsel at CareDx, filing Form 4 there in the last year
Michael GoldbergDirector · Director at CareDx, filing Form 4 there in the last year
Keith KennedyCFO & COO · CFO & COO at CareDx, filing Form 4 there in the last year
Christine CournoyerDirector · Also traded CDNA in the last 90 days
Donald J. TrumpPresident · Also traded INVA in the last 90 days