Chang David D

President and CEO

SEC Form 4 insider transaction history, parsed and scored by FilingIQ.

Total trades
4
Last 180 days
4
Avg composite
69.0
Last trade
Mar 16, 2026

Recent tickers traded

ALLO

Activity overview

FilingIQ has scored 4 SEC Form 4 insider transactions associated with Chang David D. The most recent transaction is dated Mar 16, 2026.

View live filings on FilingIQ Raw Form 4 on SEC EDGAR

Frequently asked

How many Form 4 transactions has Chang David D filed?
FilingIQ has indexed 4 SEC Form 4 insider transactions associated with Chang David D. The most recent transaction is dated Mar 16, 2026. Every filing sources back directly to SEC EDGAR.
What is Chang David D's average composite score?
Chang David D's average FilingIQ composite score is 69.0/100, produced by the FilingIQ multi-factor Form 4 model. The model framework is documented at /methodology.
Which companies has Chang David D traded?
Most recent trading activity covers ALLO. The full Form 4 history including older issuers is available on the FilingIQ web app.
Where does FilingIQ's insider data come from?
Every Form 4 transaction shown on this page is parsed directly from SEC EDGAR XML filings. Insider identity is normalized across CIK changes, name spellings, and indirect / related-party reporting.

Methodology & sources

All Form 4 transactions parsed directly from public SEC EDGAR XML filings. The FilingIQ composite score is documented on methodology. Compiled by Thomas Kraaibeek. Not investment advice; see disclaimer.