Chang Hung-Lun (Fred)

*** See Remarks

SEC Form 4 insider transaction history, cleaned and classified by FilingIQ.

Total trades
82
Last 180 days
16
Last trade
Sep 8, 2026

Recent tickers traded

AAOI

Latest filings by Chang Hung-Lun (Fred)

AAOI APPLIED OPTOELECTRONICS, INC.
S Sep 8, 2026
AAOI APPLIED OPTOELECTRONICS, INC.
S Jun 12, 2026
AAOI APPLIED OPTOELECTRONICS, INC.
S Jun 5, 2026
AAOI APPLIED OPTOELECTRONICS, INC.
S May 19, 2026

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Activity overview

FilingIQ has indexed 82 SEC Form 4 insider transactions associated with Chang Hung-Lun (Fred). The most recent transaction is dated Sep 8, 2026.

View live filings on FilingIQ Raw Form 4 on SEC EDGAR

Frequently asked

How many Form 4 transactions has Chang Hung-Lun (Fred) filed?
FilingIQ has indexed 82 SEC Form 4 insider transactions associated with Chang Hung-Lun (Fred). The most recent transaction is dated Sep 8, 2026. Every filing sources back directly to SEC EDGAR.
What does FilingIQ show for Chang Hung-Lun (Fred)'s trades?
Each open-market purchase and sale carries the same seven facts: its size in Chang Hung-Lun (Fred)'s own history at that company, the change in holdings, the previous trade, other insiders at the company in the 30 days before, the Rule 10b5-1 plan answer, the reporting time and other companies. FilingIQ does not rate the trades. The rules are at /methodology.
Which companies has Chang Hung-Lun (Fred) traded?
Most recent trading activity covers AAOI. 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. How lines are classified and which facts FilingIQ adds is documented on methodology. Compiled by Thomas Kraaibeek. Not investment advice; see disclaimer.