Who
Hung-Lun (Fred) Chang
*** See Remarks
Company insider
Files Form 4 as: *** See Remarks, Applied Optoelectronics.
In numbers
- Trades disclosed
- 354
- Buys
- 0
- Sells
- 34
- Bought
- $0
- Sold
- $58.2M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 26 Sep 2013
- Last trade
- 8 Sep 2026
- Last filed
- 10 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 8 Sep 2026filed 10 Sep 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $3.5M32,172 at $110.21 | filing |
| 8 Sep 2026filed 10 Sep 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $3.5M32,172 at $110.21 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $319K2,674 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $73K613 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $92K773 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $73K616 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $319K2,674 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $73K613 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $92K773 at $119.26 | filing |
| 22 Jul 2026filed 23 Jul 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $73K616 at $119.26 | filing |
| 17 Jun 2026filed 18 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $6.9M40,329 at $170.60 | filing |
| 17 Jun 2026filed 18 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $6.9M40,329 at $170.60 | filing |
| 12 Jun 2026filed 16 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $4.7M27,297 at $172.78 | filing |
| 12 Jun 2026filed 16 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $5.7M34,000 at $166.53 | filing |
| 12 Jun 2026filed 16 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $4.7M27,297 at $172.78 | filing |
| 12 Jun 2026filed 16 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $5.7M34,000 at $166.53 | filing |
| 5 Jun 2026filed 8 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $800K4,000 at $200.07 | filing |
| 5 Jun 2026filed 8 Jun 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $800K4,000 at $200.07 | filing |
| 19 May 2026filed 19 May 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Code F | $5.2M27,297 at $190.36 | filing |
| 19 May 2026filed 19 May 2026 | AAOI Applied OptoelectronicsElectronic Components & EMS | SEC FORM 4 Sold | $5.8M33,630 at $173.26 | filing |
News
Hung-Lun (Fred) Chang Sells 32,172 Shares of Applied Optoelectronics (NASDAQ:AAOI) Stocktickerreport.com · 10 Sep 2026Applied Optoelectronics (NASDAQ:AAOI) Shares Down 12% – Should You Sell?AAOI · dailypolitical.com · 23 Oct 2026Optics Stocks Tumble as Tech Selloff Deepens Ahead of Earnings: Coherent Tumbles 12%, Applied Optoelectronics Drops 10%, Lumentum Falls 9%AAOI · 247wallst.com · 22 Oct 2026Applied Optoelectronics Shares Close Down 1.87% After 6.08% Intraday DropAAOI · econotimes.com · 21 Oct 2026
1 headline in the last 90 days name Hung-Lun (Fred) Chang; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.