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
Discover the complete record of transactions filed by Chang William H, Director. Insider active across 2 companies, notably Ensysce Biosciences, Inc.. Aggregated, 8 disclosures have been recorded. History available since 10 May 2024. The latest transaction was filed on 15 December 2025 (Don). Regulator: SEC (Form 4). The full history is free.
Companies and markets linked to Chang William H
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations8 total
428,682 sharesCommon StockSEC:0001104659-26-004501:0
60,000 shares0Common StockSEC:0001104659-25-122125:0
2,182 shares0Common StockSEC:0001104659-25-001743:0
1,318 shares0Common StockSEC:0001104659-25-001740:0
2,735 shares0Common StockSEC:0001104659-24-129375:0
1,318 shares0Common StockSEC:0001104659-24-116121:0
2,182 shares0Common StockSEC:0001104659-24-061359:0
353,451 sharesCommon StockSEC:0001493152-21-016122:0
8 of 8 declarations
About Chang William H
Chang William H is Administrateur of Semler Scientific, Inc. and Ensysce Biosciences, Inc. He has 8 filings in total, and the recent filings we hold run from 2021-07-02 to 2026-01-16. In those recent filings, the most common transaction nature is Attribution, with cumulative buy and sell amounts shown as EUR 0.
