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Who

Gregory Sargen

Director

Company insider

Files Form 4 as: Director, Protara Therapeutics; Director, Avid Bioservices; CFO & EVP, Corp. Dev., Cambrex.

Every Form 4 they filed

In numbers

Trades disclosed
172
Buys
0
Sells
18
Bought
$0
Sold
$27.1M
Companies
3
Companies where not an officer
2
First trade
23 Aug 2004
Last trade
15 Jun 2026
Last filed
16 Jun 2026

Companies traded

Where they are an officer
CambrexOfficer · last 4 Dec 20190 buys · 17 sells
Everywhere else they filed: board seats, 10% stakes, other companies
TARA Protara TherapeuticsDirector · Biotechnology · last 15 Jun 20260 buys · 0 sells
Avid BioservicesDirector · last 5 Feb 20250 buys · 1 sell

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
15 Jun 2026filed 16 Jun 2026TARA Protara Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—31,000 at $0.00filing
15 Jun 2026filed 16 Jun 2026TARA Protara Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—31,000 at $0.00filing
12 Jun 2025filed 13 Jun 2025TARA Protara Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—24,000 at $0.00filing
5 Feb 2025filed 7 Feb 2025Avid Bioservicesoption or derivativeSEC FORM 4 Code D—75,000filing
5 Feb 2025filed 7 Feb 2025Avid Bioservicesoption or derivativeSEC FORM 4 Code D—19,600filing
5 Feb 2025filed 7 Feb 2025Avid Bioservicesoption or derivativeSEC FORM 4 Code D—19,675filing
5 Feb 2025filed 7 Feb 2025Avid Bioservicesoption or derivativeSEC FORM 4 Code D—10,030filing
5 Feb 2025filed 7 Feb 2025Avid Bioservicesoption or derivativeSEC FORM 4 Code D—8,147filing
5 Feb 2025filed 7 Feb 2025Avid BioservicesSEC FORM 4 Code D—36,368filing
14 Dec 2024filed 17 Dec 2024Avid Bioservicesoption or derivativeSEC FORM 4 Code M—26,756 at $0.00filing
14 Dec 2024filed 17 Dec 2024Avid Bioservicesoption or derivativeSEC FORM 4 Code A—8,147 at $0.00filing
14 Dec 2024filed 17 Dec 2024Avid BioservicesSEC FORM 4 Code M—26,756filing
7 Jun 2024filed 10 Jun 2024TARA Protara Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
14 Dec 2023filed 18 Dec 2023Avid Bioservicesoption or derivativeSEC FORM 4 Code M—9,612 at $0.00filing
14 Dec 2023filed 18 Dec 2023Avid Bioservicesoption or derivativeSEC FORM 4 Code A—26,756 at $0.00filing
14 Dec 2023filed 18 Dec 2023Avid BioservicesSEC FORM 4 Code M—9,612filing
7 Jun 2023filed 8 Jun 2023TARA Protara Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
11 Apr 2023filed 12 Apr 2023Avid BioservicesSEC FORM 4 Sold$142K7,011 at $20.24filing
14 Dec 2022filed 16 Dec 2022Avid Bioservicesoption or derivativeSEC FORM 4 Code M—4,632 at $0.00filing
14 Dec 2022filed 16 Dec 2022Avid Bioservicesoption or derivativeSEC FORM 4 Code A—9,612 at $0.00filing

News

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

Sectors

Not placed18

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

Related people

Nobody else traded the same names lately.