Massivemarkets

SEC Form 4

Applied Optoelectronics, Inc. (AAOI) insider trading

In the 12 months to Oct 26, 2026, 10 AAOI insiders reported open-market sales of $125.6M across 46 filings; no open-market purchases were filed.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$125.6M
46 filings · 10 insiders
Open-market purchases
$0
0 filings
Pre-arranged sales (10b5-1)
23 of 46
$22.9M of $125.6M sold (18%)

Who traded AAOI, and when

  • Sale
  • Sale, pre-arranged (10b5-1)

AAOI daily close from Oct 27, 2025 to Oct 26, 2026, between $19.49 and $223.10, last $74.11. 46 sale and 0 purchase filings by 10 insiders, marked at their filing dates. Hung-Lun (Fred) Chang, *** See Remarks: sold $26.4M across 6 filings, first filed Mar 18, 2026, last Sep 10, 2026. Shu-Hua (Joshua) Yeh, *** See Remarks: sold $21.9M across 9 filings, first filed Mar 10, 2026, last Oct 7, 2026. Chih-Hsiang (Thompson) Lin, President and CEO: sold $19.9M across 2 filings, first filed May 19, 2026, last Jun 16, 2026. Stefan J. Murry, Chief Financial Officer: sold $16.9M across 15 filings, first filed Dec 12, 2025, last Oct 14, 2026. David C. Kuo, *** See Remarks: sold $13.1M across 6 filings, first filed Dec 29, 2025, last Jun 16, 2026. Cynthia DeLaney, Director: sold $12.8M across 2 filings, first filed Mar 5, 2026, last May 28, 2026. 4 others: sold $14.7M across 6 filings, first filed Dec 17, 2025, last Jun 4, 2026.

Largest mark · tap a row for others

Richard B. Black · Director

Filing 1 of 4 within a week · $12,896,905 total

Sale $306,945

3,231 shares at $95.00 avg

Filed Mar 5, 2026

Close on filing date $101.14

AAOI daily closelast $74.11

Hung-Lun (Fred) Chang · *** See Remarks

$26.4M sold

Shu-Hua (Joshua) Yeh · *** See Remarks

$21.9M sold

Chih-Hsiang (Thompson) Lin · President and CEO

$19.9M sold

Stefan J. Murry · Chief Financial Officer

$16.9M sold

David C. Kuo · *** See Remarks

$13.1M sold

Cynthia DeLaney · Director

$12.8M sold

4 others

$14.7M sold
One row per insider, smaller filers combined; marks sit at the SEC filing date, sized by dollar value.

Open-market trades

46 filings in the last 12 months
Other insider activity (not market trades) · 95 records
  • Tax withholding70 records
  • Grants and awards17 records
  • Gifts6 records
  • Other2 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.

Frequently asked questions

Has Applied Optoelectronics, Inc.'s CEO sold stock?

Yes. Chih-Hsiang (Thompson) Lin (CEO) sold 117,000 shares ($19.9M) between May 2026 and Jun 2026.

How current is AAOI’s insider data?

These are AAOI Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.

What counts as an open-market buy or sell?

Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.

Build with AI

Track AAOI insider trades with your agent

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for AAOI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

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