SEC Form 4 reporting owner

Kuo David C

Kuo David C has filed 23 Form 4 transactions reported between December 23, 2025 and July 22, 2026, as *** See Remarks of APPLIED OPTOELECTRONICS, INC..

Name as filed: Kuo David C

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$13.1M

7 lines

Companies

with Form 4 filings

Latest transaction

Jul 22, 2026

transaction date

Roles and reported holdings

AAOIAPPLIED OPTOELECTRONICS, INC.
Dec 23, 2025 – Jul 22, 2026
*** See Remarks
Held directly145,814 sh as of Jul 22, 2026 · Form 4
24 months: $13.1M sold

Transaction history

All 23 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jul 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	407	$119.26	$49K@ $119.26	145,814	Form 4
Jul 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	516	$119.26	$62K@ $119.26	146,221	Form 4
Jul 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	472	$119.26	$56K@ $119.26	146,737	Form 4
Jul 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	1,869	$119.26	$223K@ $119.26	147,209	Form 4
Jun 12, 2026	AAOI*** See Remarks	Open-market saleCode S · direct	29,227	$166.53	$4.9M@ $166.53	149,078	Form 4
Jun 12, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	19,065	$172.78	$3.3M@ $172.78	178,305	Form 4
May 19, 2026	AAOI*** See Remarks	Open-market saleCode S · direct	19,227	$173.26	$3.3M@ $173.26	197,370	Form 4
May 19, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	19,064	$190.36	$3.6M@ $190.36	216,597	Form 4
May 15, 2026	AAOI*** See Remarks	Grant or awardCode A · direct	156,583	—	—	235,661	Form 4
Apr 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	447	$150.57	$67K@ $150.57	79,078	Form 4
Apr 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	567	$150.57	$85K@ $150.57	79,525	Form 4
Apr 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	518	$150.57	$78K@ $150.57	80,092	Form 4
Apr 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	2,053	$150.57	$309K@ $150.57	80,610	Form 4
Mar 19, 2026	AAOI*** See Remarks	Open-market saleCode S · direct	29,000	$100.13	$2.9M@ $100.13	82,663	Form 4
Feb 11, 2026	AAOI*** See Remarks	Open-market saleCode S · direct	17,467	$50.17	$876K@ $50.17	111,663	Form 4
Feb 10, 2026	AAOI*** See Remarks	Open-market saleCode S · direct	2,533	$50.00	$127K@ $50.00	129,130	Form 4
Feb 9, 2026	AAOI*** See Remarks	Grant or awardCode A · direct	17,027	—	—	131,663	Form 4
Jan 28, 2026	AAOI*** See Remarks	Open-market saleCode S · direct	12,000	$45.05	$541K@ $45.05	114,636	Form 4
Jan 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	567	$38.38	$22K@ $38.38	126,636	Form 4
Jan 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	519	$38.38	$20K@ $38.38	127,203	Form 4
Jan 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	2,054	$38.38	$79K@ $38.38	127,722	Form 4
Jan 22, 2026	AAOI*** See Remarks	Shares withheld for tax or exercise priceCode F · direct	1,172	$38.38	$45K@ $38.38	129,776	Form 4
Dec 23, 2025	AAOI*** See Remarks	Open-market saleCode S · direct	12,500	$40.15	$502K@ $40.15	130,948	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.