Are insiders buying AAOI stock?

Yes — 4 distinct insiders have bought AAOI (APPLIED OPTOELECTRONICS, INC.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Aug 15, 2025.

How much AAOI stock have insiders bought?

Insiders have bought a combined $1.5M of AAOI across 9 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in AAOI?

A cluster buy is two or more distinct APPLIED OPTOELECTRONICS, INC. insiders — officers, directors, or 10% owners — each buying AAOI on the open market within a rolling window. AAOI has 1 detected cluster buy to date.

Where does this AAOI insider trading data come from?

Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

AAOI insider buying

1 cluster buy

APPLIED OPTOELECTRONICS, INC. · Technology

When two or more insiders at APPLIED OPTOELECTRONICS, INC. buy AAOI on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in AAOI plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.

Clusters

Distinct insiders

Total bought

$1.5M

Market cap

$9.9B

Detected clusters

Aug 12 – Aug 14, 2025
Detected Aug 14, 2025
High conviction3 insiders
Total bought
$873.4K
Market cap
$9.9B

All notable open-market buys in AAOI

Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.

Date	Insider	Shares	Price	Value	Filing
Aug 14, 2025	Lin Chih-Hsiang (Thompson)cluster Director, President and CEO	5,750	$21.62	$124.3K	SEC ↗
Aug 14, 2025	Lin Che-Wei Director	4,609	$21.64	$99.7K	SEC ↗
Aug 13, 2025	Yeh William Hcluster Director	10,000	$22.75	$227.5K	SEC ↗
Aug 13, 2025	Lin Chih-Hsiang (Thompson)cluster Director, President and CEO	8,850	$22.53	$199.4K	SEC ↗
Aug 13, 2025	Chen Min-Chu (Mike)cluster Director	7,500	$22.91	$171.8K	SEC ↗
Aug 12, 2025	Lin Chih-Hsiang (Thompson)cluster Director, President and CEO	6,500	$23.14	$150.4K	SEC ↗
May 13, 2025	Lin Chih-Hsiang (Thompson) Director, President and CEO	11,000	$18.20	$200.2K	SEC ↗
May 13, 2025	Lin Chih-Hsiang (Thompson) Director, President and CEO	10,200	$18.24	$186.0K	SEC ↗
May 14, 2024	Yeh William H Director	9,800	$10.54	$103.3K	SEC ↗

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AAOI insider buying — FAQ

Are insiders buying AAOI stock?: Yes — 4 distinct insiders have bought AAOI (APPLIED OPTOELECTRONICS, INC.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Aug 15, 2025.
How much AAOI stock have insiders bought?: Insiders have bought a combined $1.5M of AAOI across 9 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in AAOI?: A cluster buy is two or more distinct APPLIED OPTOELECTRONICS, INC. insiders — officers, directors, or 10% owners — each buying AAOI on the open market within a rolling window. AAOI has 1 detected cluster buy to date.
Where does this AAOI insider trading data come from?: Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

How we track insider buying in AAOI

We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy AAOI within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?

This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding AAOI.