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Who

Derrell Porter

Director

Company insider

Files Form 4 as: Director, Acumen Pharmaceuticals; Director, Passage Bio; SVP, Head of Global Commercial, Atara Biotherapeutics.

In numbers

Trades disclosed
44
Buys
0
Sells
6
Bought
$0
Sold
$1.2M
Companies
3
Companies where not an officer
2
First trade
10 May 2017
Last trade
17 Jun 2026
Last filed
17 Jun 2026

Companies traded

Where they are an officer
ATRA Atara BiotherapeuticsOfficer · Biotechnology · last 26 Mar 20190 buys · 3 sells
Everywhere else they filed: board seats, 10% stakes, other companies
ABOS Acumen PharmaceuticalsDirector · Biotechnology · last 17 Jun 20260 buys · 3 sells
PASG Passage BioDirector · Biotechnology · last 19 May 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
30Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
17 Jun 2026filed 17 Jun 2026ABOS Acumen Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code M—13,040 at $0.00filing
17 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Code M$14K13,040 at $1.07filing
17 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Sold$30K13,040 at $2.33filing
17 Jun 2026filed 17 Jun 2026ABOS Acumen Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code M—13,040 at $0.00filing
17 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Code M$14K13,040 at $1.07filing
17 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Sold$30K13,040 at $2.33filing
16 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Sold$30K12,800 at $2.33filing
16 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Sold$30K12,800 at $2.33filing
15 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Code M$6,9126,460 at $1.07filing
15 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Sold$15K6,460 at $2.35filing
15 Jun 2026filed 17 Jun 2026ABOS Acumen Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code M—6,460 at $0.00filing
15 Jun 2026filed 17 Jun 2026ABOS Acumen Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code M—6,460 at $0.00filing
15 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Code M$6,9126,460 at $1.07filing
15 Jun 2026filed 17 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Sold$15K6,460 at $2.35filing
3 Jun 2026filed 5 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Code A—35,500 at $0.00filing
3 Jun 2026filed 5 Jun 2026ABOS Acumen Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code A—53,250 at $0.00filing
3 Jun 2026filed 5 Jun 2026ABOS Acumen Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code A—53,250 at $0.00filing
3 Jun 2026filed 5 Jun 2026ABOS Acumen PharmaceuticalsBiotechnologySEC FORM 4 Code A—35,500 at $0.00filing
19 May 2026filed 21 May 2026PASG Passage Biooption or derivative · BiotechnologySEC FORM 4 Code A—10,539 at $0.00filing
19 May 2026filed 21 May 2026PASG Passage Biooption or derivative · BiotechnologySEC FORM 4 Code A—10,539 at $0.00filing

News

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

Sectors

Health Care6

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

Related people

Brian N. CherryDirector · Director at Atara Biotherapeutics, filing Form 4 there in the last year
AnhCo NguyenPresident and CEO · President and CEO at Atara Biotherapeutics, filing Form 4 there in the last year
Redmile Group, LLC10% owner · Director at Atara Biotherapeutics, filing Form 4 there in the last year
Matthew K. FustDirector · Director at Atara Biotherapeutics, filing Form 4 there in the last year
William K. HeidenDirector · Director at Atara Biotherapeutics, filing Form 4 there in the last year