Investors / filer profile

Chang Hung-Lun (Fred)

*** See Remarks

active in 1 company

Pro
Bought: Pro
Sold: 21
Filings: 1
Companies: 2026-06-12
Last filed

EDGAR · CIK 0001587462 ↗

Track record

How each disclosed position did against the S&P ~6 months later

No positions we can measure against the market yet — outcomes appear once a disclosed buy is ~6 months old.

Disclosed positions

Estimated from their latest filings — positions may have changed since

Estimated positions from their latest filingsPro →

Activity

Open-market buy & sell volume

BuySell

Total +$0.0000 bought · −$12.65M sold

All filings on record

Every Form 4 transaction we track for this filer


AAOIAPPLIED OPTOELECTRONICS, INC.	Sell $5.66M · 34,000 sh	2026-06-12	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Tax $4.72M · 27,297 sh	2026-06-12	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Sell $800.3K · 4,000 sh	2026-06-05	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Sell $5.83M · 33,630 sh	2026-05-19	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Tax $5.20M · 27,297 sh	2026-05-19	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Grant — · 224,199 sh	2026-05-15	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Grant — · 25,799 sh	2026-02-09	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Tax $32.6K · 850 sh	2026-01-22	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Tax $25.9K · 674 sh	2026-01-22	—
AAOIAPPLIED OPTOELECTRONICS, INC.	Tax $112.8K · 2,940 sh	2026-01-22	—

AAOISell

2026-06-12 · APPLIED OPTOELECTRONICS, INC.

$5.66M

—

AAOITax

2026-06-12 · APPLIED OPTOELECTRONICS, INC.

$4.72M

—

AAOISell

2026-06-05 · APPLIED OPTOELECTRONICS, INC.

$800.3K

—

AAOISell

2026-05-19 · APPLIED OPTOELECTRONICS, INC.

$5.83M

—

AAOITax

2026-05-19 · APPLIED OPTOELECTRONICS, INC.

$5.20M

—

AAOIGrant

2026-05-15 · APPLIED OPTOELECTRONICS, INC.

224,199

—

AAOIGrant

2026-02-09 · APPLIED OPTOELECTRONICS, INC.

25,799

—

AAOITax

2026-01-22 · APPLIED OPTOELECTRONICS, INC.

$32.6K

—

AAOITax

2026-01-22 · APPLIED OPTOELECTRONICS, INC.

$25.9K

—

AAOITax

2026-01-22 · APPLIED OPTOELECTRONICS, INC.

$112.8K

—

Newest 10 of 21 filingsEvery Form 4 on record, with outcomesPro →

Outcomes measure each position — the first buy in a stock and every buy within 182 days — against the closing price ~6 months (120 trading days) later, with the S&P 500 over the same span for context. Pre-scheduled 10b5-1 plan trades are excluded from the record. Positions are estimated from the latest reported post-transaction holdings, split-adjusted, at the latest close. Built from SEC Form 4 filings and market prices — past outcomes, not predictions or advice.