Applied Optoelectronics, Inc.
US ˙ NasdaqGM ˙ US03823U1025

Introduction

This page provides a comprehensive analysis of the known insider trading history of William H Yeh. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

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Companies with Reported Insider Positions

The SEC filings indicate William H Yeh has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:AAOI / Applied Optoelectronics, Inc. Director 253,819
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by William H Yeh. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases AAOI / Applied Optoelectronics, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in AAOI / Applied Optoelectronics, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
2025-08-14 AAOI Yeh William H 4,000 21.4000 4,000 21.4000 85,600 4 26.1300 18,920 22.10
2025-08-13 AAOI Yeh William H 10,000 22.7500 10,000 22.7500 227,500
2025-08-13 AAOI Yeh William H 4,000 23.1500 4,000 23.1500 92,600
2024-05-14 AAOI Yeh William H 9,800 10.5400 9,800 10.5400 103,292
2024-03-18 AAOI Yeh William H 8,000 12.7500 8,000 12.7500 102,000
2024-02-27 AAOI Yeh William H 10,000 15.2900 10,000 15.2900 152,900
2020-06-15 AAOI Yeh William H 10,000 9.0200 10,000 9.0200 90,200
2016-05-27 AAOI Yeh William H 6,000 10.1300 6,000 10.1300 60,780
2016-05-27 AAOI Yeh William H 4,000 10.1700 4,000 10.1700 40,680

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

AAOI / Applied Optoelectronics, Inc. Insider Trades
Insider Sales AAOI / Applied Optoelectronics, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in AAOI / Applied Optoelectronics, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
2024-12-03 AAOI Yeh William H 10,000 43.0807 10,000 43.0807 430,807 139 10.0500 -330,307 -76.67
2023-08-21 AAOI Yeh William H 10,000 15.2200 10,000 15.2200 152,200
2017-06-02 AAOI Yeh William H 10,000 74.0558 10,000 74.0558 740,558
2017-05-31 AAOI Yeh William H 10,000 71.0100 10,000 71.0100 710,100
2017-05-31 AAOI Yeh William H 10,000 71.3044 10,000 71.3044 713,044
2017-02-28 AAOI Yeh William H 37,664 47.1511 37,664 47.1511 1,775,899

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

AAOI / Applied Optoelectronics, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by William H Yeh as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change		 Share
Price		 Tran
Value		 Remaining
Value
2025-08-14 2025-08-14 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 4,000 253,819 1.60 21.40 85,600 5,431,727
2025-08-14 2025-08-13 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 4,000 249,819 1.63 23.15 92,600 5,783,310
2025-08-14 2025-08-13 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 10,000 245,819 4.24 22.75 227,500 5,592,382
2025-06-17 2025-06-13 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 12,281 235,819 5.49
2024-12-03 2024-12-03 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		S - Sale -10,000 223,538 -4.28 43.08 -430,807 9,630,174
2024-06-25 2024-06-21 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 16,483 233,538 7.59
2024-05-15 2024-05-14 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 9,800 217,055 4.73 10.54 103,292 2,287,760
2024-03-19 2024-03-18 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 8,000 207,255 4.01 12.75 102,000 2,642,501
2024-02-28 2024-02-27 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 10,000 199,255 5.28 15.29 152,900 3,046,609
2023-08-22 2023-08-21 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		S - Sale -10,000 189,255 -5.02 15.22 -152,200 2,880,461
2023-06-28 2023-06-26 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 40,925 199,255 25.85
2022-06-29 2022-06-27 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 52,995 158,330 50.31
2021-06-15 2021-06-11 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 14,538 105,335 16.01
2020-06-16 2020-06-15 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 10,000 90,797 12.38 9.02 90,200 818,989
2020-06-16 2020-06-12 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 13,053 80,797 19.27
2019-06-04 2019-05-31 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 12,806 67,744 23.31
2018-06-12 2018-06-08 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 2,535 54,938 4.84
2017-06-12 2017-06-09 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 1,236 52,403 2.42 64.71 79,982 3,390,998
2017-06-02 2017-06-02 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		S - Sale -10,000 51,167 -16.35 74.06 -740,558 3,789,213
2017-06-02 2017-05-31 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		S - Sale -10,000 61,167 -14.05 71.30 -713,044 4,361,476
2017-06-02 2017-05-31 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		S - Sale -10,000 71,167 -12.32 71.01 -710,100 5,053,569
2017-03-02 2017-02-28 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		S - Sale -37,664 81,167 -31.70 47.15 -1,775,899 3,827,113
2016-06-08 2016-06-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 7,011 118,831 6.27
2016-06-01 2016-05-27 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 4,000 111,820 3.71 10.17 40,680 1,137,209
2016-06-01 2016-05-27 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		P - Purchase 6,000 107,820 5.89 10.13 60,780 1,092,217
2015-08-04 2015-07-31 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $.001 par value 		A - Award 2,827 101,820 2.86
2014-09-02 2014-08-08 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock 		A - Award 3,021 98,993 3.15
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Non-Qualified Stock Option (Right to Buy) 		M - Exercise -1,750 0 -100.00
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Non-Qualified Stock Option (Right to Buy) 		M - Exercise -1,400 0 -100.00
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Non-Qualified Stock Option (Right to Buy) 		M - Exercise -1,400 0 -100.00
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Non-Qualified Stock Option (Right to Buy) 		M - Exercise -222 0 -100.00
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Non-Qualified Stock Option (Right to Buy) 		M - Exercise -667 0 -100.00
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		M - Exercise 1,750 1,750 6.00 10,500 10,500
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		M - Exercise 1,400 1,400 6.00 8,400 8,400
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		M - Exercise 1,400 1,400 6.00 8,400 8,400
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		M - Exercise 222 222 6.00 1,332 1,332
2014-01-08 2014-01-06 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		M - Exercise 667 667 6.00 4,002 4,002
2013-11-18 2013-11-14 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock 		A - Award 5,500 5,500
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Series F Convertible Preferred Stock 		C - Conversion -11,200 0 -100.00
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Series D Convertible Preferred Stock 		C - Conversion -1,666 0 -100.00
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Series G Convertible Preferred Stock 		C - Conversion -19,047 0 -100.00
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Series C Convertible Preferred Stock 		C - Conversion -5,477 0 -100.00
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Series A Convertible Preferred Stock 		C - Conversion -9,102 0 -100.00
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		C - Conversion 13,440 13,440
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		C - Conversion 4,224 4,224
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		C - Conversion 19,047 19,047
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		C - Conversion 12,655 12,655
2013-10-02 2013-10-01 4 AAOI APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		C - Conversion 28,881 28,881
2013-09-25 3 AAOIO APPLIED OPTOELECTRONICS, INC.
Common Stock, $0.001 par value 		6,786
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)