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Applied Optoelectronics, Inc.

TechnologyRussell 2000

Applied Optoelectronics, Inc. insider trading

Applied Optoelectronics, Inc. files with the SEC as a Semiconductors & Related Devices company headquartered in Sugar Land, TX. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent AAOI insider transactions

6 insiders traded AAOI on the open market between Jun 02, 2026 and Sep 10, 2026 — 19 sales worth $50.4M, of which 9 were pre-scheduled under a 10b5-1 plan.

Bought
—
Sold
$50.4M

9 of 19 on a 10b5-1 plan

Net
−$50.4M
Insiders
6

Open-market purchases (code P) and sales (code S) from Applied Optoelectronics, Inc.'s own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 22, 2026. The live dashboard shows new filings the moment they clear.

Every AAOI Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

AAOI insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 11 insiders traded AAOI on the open market: 13 purchases worth $1.7M and 75 sales worth $125M, 30 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 11 purchases ($1.3M) and 48 sales ($118.6M), by 11 insiders.

QuarterBoughtSold
Q2 2026—−$87.4M20 sales · 5 on a plan
Q1 2026—−$29.7M20 sales · 12 on a plan
Q4 2025—−$752.7K4 sales · 3 on a plan
Q3 2025+$1.3M11 buys−$753.8K4 sales · 1 on a plan
Q2 2025+$386.2K2 buys−$765.3K5 sales · 3 on a plan
Q1 2025—−$622.8K5 sales · all on a plan
Q4 2024—−$4.9M16 sales · 1 on a plan
Q3 2024—−$150.2K1 sale
Largest purchase
+$227.5K of AAOI by Yeh William H (Director) on Aug 13, 2025.
Largest sale
−$10.7M of AAOI by DeLaney Cynthia (Director) on May 26, 2026.

Open-market transactions through Jun 30, 2026most recent first

  • DeLaney Cynthia

    Director

    −$10.7M

    May 26, 2026

    56,575 sh · $189.23

  • Lin Chih-Hsiang (Thompson)

    President and CEO · Director

    −$10M

    May 19, 2026

    58,000 sh · $173.26

  • Yeh Shu-Hua (Joshua)

    *** Senior Vice President and Asia General Manager.

    −$6.8M

    May 19, 2026

    39,154 sh · $173.26

  • Chang Hung-Lun (FRED)

    *** Senior Vice President and North America General Manager

    −$5.8M

    May 19, 2026

    33,630 sh · $173.26

  • Murry Stefan J.

    Chief Financial Officer

    −$5.7M

    May 19, 2026

    33,000 sh · $173.26

  • Kuo David C

    ***Senior Vice President and Chief Legal Officer

    −$3.3M

    May 19, 2026

    19,227 sh · $173.26

  • Murry Stefan J.10b5-1

    Chief Financial Officer

    −$638.1K

    May 11, 2026

    4,000 sh · $159.53

  • Murry Stefan J.10b5-1

    Chief Financial Officer

    −$546K

    Apr 10, 2026

    4,000 sh · $136.50

  • Kuo David C

    ***Senior Vice President and Chief Legal Officer

    −$2.9M

    Mar 19, 2026

    29,000 sh · $100.13

  • Chang Hung-Lun (FRED)

    *** Senior Vice President and North America General Manager.

    −$3.6M

    Mar 16, 2026

    36,400 sh · $100.25

  • Murry Stefan J.10b5-1

    Chief Financial Officer

    −$451K

    Mar 10, 2026

    4,000 sh · $112.76

  • Yeh Shu-Hua (Joshua)10b5-1

    Officer

    −$4.9M

    Mar 09, 2026

    50,000 sh · $97.10

  • Yeh William H

    Director

    −$1.6M

    Mar 09, 2026

    15,000 sh · $105.76

  • Chen Min-Chu (MIKE)

    Director

    −$960.5K

    Mar 09, 2026

    8,835 sh · $108.72

  • Chen Min-Chu (MIKE)

    Director

    −$242.5K

    Mar 06, 2026

    2,500 sh · $97.00

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

Applied Optoelectronics, Inc. company record

SEC industry classification
Semiconductors & Related Devices
Headquarters
Sugar Land, TX
Incorporated in
DE
Listed on
Nasdaq
SEC Central Index Key
0001158114

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

After insiders bought AAOI

What the stock actually did in the 90 days following each open-market purchase

Don't check AAOI — let it ping you

Get told the moment an insider moves on AAOI

Pro watches Applied Optoelectronics, Inc. for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add AAOI to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track AAOI on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read AAOI insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

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Questions

Are AAOI insiders buying or selling?
Between Jun 02, 2026 and Sep 10, 2026, 6 Applied Optoelectronics, Inc. insiders made no open-market purchases and 19 sales worth $50.4M, a net sale of $50.4M. 9 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much AAOI stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 11 Applied Optoelectronics, Inc. insiders made 13 open-market purchases worth $1.7M and 75 sales worth $125M. 30 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: 11 purchases ($1.3M) and 48 sales ($118.6M). The largest purchase was Yeh William H buying $227.5K on Aug 13, 2025. The largest sale was DeLaney Cynthia selling $10.7M on May 26, 2026.
What was the largest recent AAOI insider trade?
Lin Chih-Hsiang (Thompson) (President and CEO · Director) sold $9.8M of AAOI stock on Jun 12, 2026 at about $166.53 a share.
When did an insider last buy AAOI shares?
No open-market purchase by a Applied Optoelectronics, Inc. insider appears in the filings from Jun 02, 2026 to Sep 10, 2026 — every recorded open-market transaction in that period was a sale. Before that, the most recent purchase in SEC's data was Lin Chih-Hsiang (Thompson) buying $124.3K on Aug 14, 2025.
Where does AAOI insider trading data come from?
From the Form 4 filings Applied Optoelectronics, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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