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Who

Andrew Seth Sandler

Director

Company insider

Files Form 4 as: Director, Dermata Therapeutics; Chief Medical Officer, Alpine Immune Sciences; EVP, Chief Medical Officer, Dendreon.

Every Form 4 they filed

In numbers

Trades disclosed
32
Buys
0
Sells
1
Bought
$0
Sold
$10K
Companies
3
Companies where not an officer
1
First trade
13 Jan 2014
Last trade
2 Jan 2026
Last filed
6 Jan 2026

Companies traded

Where they are an officer
Alpine Immune SciencesOfficer · last 5 Jan 20230 buys · 0 sells
DendreonOfficer · last 13 Feb 20150 buys · 1 sell
Everywhere else they filed: board seats, 10% stakes, other companies
DRMA Dermata TherapeuticsDirector · Biotechnology · last 2 Jan 20260 buys · 0 sells

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
2 Jan 2026filed 6 Jan 2026DRMA Dermata Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—2,500 at $0.00filing
2 Jan 2026filed 6 Jan 2026DRMA Dermata Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—2,500 at $0.00filing
13 Jan 2025filed 14 Jan 2025DRMA Dermata Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—5,000 at $0.00filing
4 Jan 2024filed 5 Jan 2024DRMA Dermata Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
5 Jan 2023filed 5 Jan 2023Alpine Immune Sciencesoption or derivativeSEC FORM 4 Code A—50,000 at $0.00filing
6 Oct 2022filed 7 Oct 2022DRMA Dermata TherapeuticsBiotechnologySEC FORM 4 Code A—10,120 at $0.00filing
17 Aug 2022filed 18 Aug 2022Alpine Immune Sciencesoption or derivativeSEC FORM 4 Code A—160,000 at $0.00filing
7 Jul 2022filed 8 Jul 2022DRMA Dermata TherapeuticsBiotechnologySEC FORM 4 Code A—8,874 at $0.00filing
7 Apr 2022filed 8 Apr 2022DRMA Dermata TherapeuticsBiotechnologySEC FORM 4 Code A—5,190 at $0.00filing
3 Jan 2022filed 5 Jan 2022DRMA Dermata Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—5,000 at $0.00filing
17 Aug 2021filed 17 Aug 2021DRMA Dermata Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
13 Feb 2015filed 17 Feb 2015DendreonSEC FORM 4 Sold$7017,791 at $0.09filing
13 Feb 2015filed 17 Feb 2015DendreonSEC FORM 4 Sold$9,533105,925 at $0.09filing
13 Jan 2015filed 14 Jan 2015DendreonSEC FORM 4 Code F$5516,121 at $0.09filing
9 Jan 2015filed 12 Jan 2015DendreonSEC FORM 4 Code F$1221,530 at $0.08filing
3 Jan 2015filed 5 Jan 2015DendreonSEC FORM 4 Code F$15189 at $0.08filing
3 Jan 2015filed 5 Jan 2015DendreonSEC FORM 4 Code F$81610,203 at $0.08filing
3 Jan 2015filed 5 Jan 2015DendreonSEC FORM 4 Code F$1081,353 at $0.08filing
29 Oct 2014filed 30 Oct 2014DendreonSEC FORM 4 Code F$114111 at $1.03filing
9 Oct 2014filed 10 Oct 2014DendreonSEC FORM 4 Code F$1,3081,282 at $1.02filing

News

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

Sectors

Not placed1

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

Related people

Nobody else traded the same names lately.