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Who

Paul Maier V

Director

Company insider

Files Form 4 as: Director, International Stem Cell; Director, Eton Pharmaceuticals; Director, Ambrx Biopharma; Director, Ambrx Biopharma; Director, FF EAI Robotics Ecosystem; Director, Mabvax Therapeutics Holdings; Director, Apricus Biosciences; Chief Financial Officer, Sequenom.

In numbers

Trades disclosed
380
Buys
5
Sells
39
Bought
$79K
Sold
$14.1M
Companies
11
Companies where not an officer
9
First trade
10 Mar 2006
Last trade
16 Sep 2026
Last filed
17 Sep 2026

Companies traded

Where they are an officer
SequenomOfficer · last 10 Feb 20141 buy · 0 sells
LGND Ligand PharmaceuticalsOfficer · Biotechnology · last 20 Nov 20060 buys · 5 sells
Everywhere else they filed: board seats, 10% stakes, other companies
International Stem CellDirector · last 16 Sep 20261 buy · 30 sells
ETON Eton PharmaceuticalsDirector · Pharmaceuticals · last 28 Aug 20261 buy · 2 sells
Ambrx BiopharmaDirector · last 7 Mar 20240 buys · 0 sells
Ambrx BiopharmaDirector · last 7 Jun 20230 buys · 0 sells
FFR FF EAI Robotics EcosystemDirector · Consumer & Specialty Finance · last 15 Jan 20200 buys · 0 sells
Mabvax Therapeutics HoldingsDirector · last 2 Apr 20181 buy · 2 sells
Apricus BiosciencesDirector · last 4 Jan 20180 buys · 0 sells
Talon TherapeuticsDirector · last 17 Jul 20131 buy · 0 sells
Pure BioscienceDirector · last 31 Jul 20120 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
16 Sep 2026filed 17 Sep 2026International Stem Celloption or derivativeSEC FORM 4 Code D—30,000 at $0.00filing
11 Sep 2026filed 15 Sep 2026International Stem CellSEC FORM 4 Sold$10K32,802 at $0.32filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$189K50,000 at $3.78filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$2.1M36,387 at $58.64filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$812K13,485 at $60.21filing
28 Aug 2026filed 31 Aug 2026ETON Eton Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—50,000 at $0.00filing
28 Aug 2026filed 31 Aug 2026ETON Eton Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—12,500 at $0.00filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$7,907128 at $61.77filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$91K12,500 at $7.31filing
28 Aug 2026filed 31 Aug 2026ETON Eton Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—50,000 at $0.00filing
28 Aug 2026filed 31 Aug 2026ETON Eton Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—12,500 at $0.00filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$189K50,000 at $3.78filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$2.1M36,387 at $58.64filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$812K13,485 at $60.21filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$7,907128 at $61.77filing
28 Aug 2026filed 31 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$91K12,500 at $7.31filing
28 Aug 2026filed 28 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$189K50,000 at $3.78filing
28 Aug 2026filed 28 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$2.1M36,387 at $58.64filing
28 Aug 2026filed 28 Aug 2026ETON Eton PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$812K13,485 at $60.21filing
28 Aug 2026filed 28 Aug 2026ETON Eton Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—50,000 at $0.00filing

Sectors

Health Care8
Not placed36

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

Related people

Andrew ReardonCLO & Secretary · CLO & Secretary at Ligand Pharmaceuticals, filing Form 4 there in the last year
Martine ZimmermannDirector · Director at Ligand Pharmaceuticals, filing Form 4 there in the last year
Jason HaasDirector · Director at Ligand Pharmaceuticals, filing Form 4 there in the last year
Octavio EspinozaChief Financial Officer · Chief Financial Officer at Ligand Pharmaceuticals, filing Form 4 there in the last year
Todd C. DavisChief Executive Officer · Chief Executive Officer at Ligand Pharmaceuticals, filing Form 4 there in the last year
David KrempaChief Business Officer · Also traded ETON in the last 90 days
Sean BrynjelsenPresident & CEO · Also traded ETON in the last 90 days