InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the full record of transactions filed by Dere Willard H, Director. Officer active across 4 companies, notably Biomarin Pharmaceutical INC. Cumulatively, 15 filings have been recorded. Activity tracked since 25 May 2021. The latest transaction was filed on 2 June 2026 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
Companies and markets linked to Dere Willard H
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations15 total
7,490 shares0Common StockSEC:0001628280-26-040911:0
1,567 sharesCommon StockSEC:0001104659-26-001382:0
6,650 shares0Common StockSEC:0001048477-25-000068:0
4,720 shares0Common StockSEC:0001048477-24-000098:0
6,112 shares0Common StockSEC:0001104659-24-001360:0
11,011 shares0Common StockSEC:0001104659-23-106841:0
4,217 shares0Common StockSEC:0001104659-23-078750:0
14,467 shares0Common StockSEC:0001104659-23-070350:0
4,190 shares0Common StockSEC:0001209191-23-031967:0
3,375 shares0Common StockSEC:0001104659-23-042238:0
21,300 shares@ US$10.00100.0% of flowCommon StockSEC:0000899243-22-028641:0
31,746 shares@ US$3.15100.0% of flowCOMMON STOCKSEC:0000899243-22-025513:0
4,980 shares0Common StockSEC:0001567619-22-011788:0
5,500 shares0Common StockSEC:0001209191-22-004782:0
5,120 shares0Common StockSEC:0001567619-21-011288:0
15 of 15 declarations
About Dere Willard H
Dere Willard H is Administrateur and has filed 15 forms in total. In the sampled recent filings, the transaction nature is Attribution, with a date range from 2021-05-27 to 2026-06-04, and the main filings concern Biomarin Pharmaceutical INC, Mersana Therapeutics, Inc., Radius Health, Inc. and Seres Therapeutics, Inc.
