AXT, Inc.
US ˙ NasdaqGS ˙ US00246W1036

Introduction

This page provides a comprehensive analysis of the known insider trading history of Hong Q Hou. 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.

Companies with Reported Insider Positions

The SEC filings indicate Hong Q Hou has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:SMTC / Semtech Corporation President and CEO, Director 28,369
US:FN / Fabrinet EVP & Chief Technical Officer 40,388
US:AXTI / AXT, Inc. Chief Operating Officer 30,000
US:EMKR / Emcore Corporation CEO & President, Director 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Hong Q Hou. 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 AXTI / AXT, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in AXTI / AXT, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

AXTI / AXT, Inc. Insider Trades
Insider Sales AXTI / AXT, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in AXTI / AXT, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

AXTI / AXT, Inc. Insider Trades
Insider Purchases FN / Fabrinet - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in AXTI / AXT, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

FN / Fabrinet Insider Trades
Insider Sales FN / Fabrinet - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in AXTI / AXT, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

FN / Fabrinet Insider Trades
Insider Purchases SMTC / Semtech Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in AXTI / AXT, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

SMTC / Semtech Corporation Insider Trades
Insider Sales SMTC / Semtech Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in AXTI / AXT, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

SMTC / Semtech Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Hong Q Hou 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
2025-07-03 2025-07-01 4 SMTC SEMTECH CORP
Common Stock
F - Taxes -13,170 28,369 -31.71 45.14 -594,494 1,280,577
2025-07-03 2025-07-01 4 SMTC SEMTECH CORP
Common Stock
M - Exercise 25,934 41,539 166.19
2025-06-13 2025-06-11 4 SMTC SEMTECH CORP
Common Stock
F - Taxes -12,454 15,605 -44.39 42.16 -525,061 657,907
2025-06-13 2025-06-11 4 SMTC SEMTECH CORP
Common Stock
M - Exercise 24,525 28,059 693.97
2024-06-10 2024-06-09 4 SMTC SEMTECH CORP
Common Stock
M - Exercise 3,534 3,534 31.18 110,190 110,190
2023-07-05 3 SMTC SEMTECH CORP
Common Stock
0
2018-08-27 2018-08-25 4 FN Fabrinet
Ordinary Shares
J - Other -11,377 40,388 -21.98
2018-08-27 2018-08-25 4 FN Fabrinet
Ordinary Shares
F - Taxes -11,464 51,715 -18.15 47.83 -548,323 2,473,528
2018-08-27 2018-08-24 4 FN Fabrinet
Ordinary Shares
F - Taxes -2,329 63,179 -3.56 47.83 -111,396 3,021,852
2018-08-21 2018-08-18 4 FN Fabrinet
Ordinary Shares
F - Taxes -2,187 65,508 -3.23 43.66 -95,484 2,860,079
2018-08-16 2018-08-14 4 FN Fabrinet
Ordinary Shares
F - Taxes -6,175 67,695 -8.36 43.29 -267,316 2,930,517
2018-08-16 2018-08-14 4 FN Fabrinet
Ordinary Shares
A - Award 12,350 73,870 20.07
2018-01-12 2018-01-11 4 FN Fabrinet
Ordinary Shares
F - Taxes -3,597 61,520 -5.52 29.48 -106,040 1,813,610
2017-08-28 2017-08-24 4 FN Fabrinet
Ordinary Shares
A - Award 13,977 65,117 27.33
2017-08-24 2017-08-18 4 FN Fabrinet
Ordinary Shares
F - Taxes -1,889 51,140 -3.56 40.08 -75,711 2,049,691
2016-08-22 2016-08-18 4 FN Fabrinet
Ordinary Shares
A - Award 6,175 53,029 13.18
2016-08-22 2016-08-18 4 FN Fabrinet
Ordinary Shares
A - Award 9,263 46,854 24.64
2016-04-28 2016-04-28 4 FN Fabrinet
Ordinary Shares
A - Award 36,591 37,591 3,659.10
2016-02-02 3 FN Fabrinet
Ordinary Shares
2,000
2016-02-02 3 FN Fabrinet
Ordinary Shares
2,000
2015-11-04 2015-11-02 4 AXTI AXT INC
Stock Options
A - Award 30,000 30,000 2.18 65,400 65,400
2015-11-04 2015-11-02 4 AXTI AXT INC
Common Stock
A - Award 10,000 310,000 3.33
2015-06-30 2015-06-29 4 AXTI AXT INC
Common Stock
A - Award 300,000 300,000
2015-06-30 3 AXTI AXT INC
Common Stock
0
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -3,333 0 -100.00
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -5,937 0 -100.00
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -75,000 0 -100.00
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -26,666 0 -100.00
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Common Stock
M - Exercise 3,333 205,229 1.65
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Common Stock
M - Exercise 5,937 201,896 3.03
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Common Stock
M - Exercise 75,000 195,959 62.00
2015-01-06 2015-01-02 4 EMKR EMCORE CORP
Common Stock
M - Exercise 26,666 120,959 28.28
2014-08-26 2014-08-25 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,327 94,293 -1.39 4.23 -5,613 398,859
2014-08-26 2014-08-22 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -4,166 0 -100.00
2014-08-26 2014-08-22 4 EMKR EMCORE CORP
Common Stock
M - Exercise 4,166 95,620 4.56
2014-03-11 2014-03-10 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,085 91,454 -1.17 5.15 -5,588 470,988
2014-03-11 2014-03-08 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -3,333 3,333 -50.00
2014-03-11 2014-03-08 4 EMKR EMCORE CORP
Common Stock
M - Exercise 3,333 92,539 3.74
2014-01-31 2014-01-30 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -5,937 5,937 -50.00
2014-01-31 2014-01-30 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,908 89,206 -2.09 4.85 -9,254 432,649
2014-01-31 2014-01-29 4 EMKR EMCORE CORP
Common Stock
M - Exercise 5,937 91,114 6.97
2014-01-30 2014-01-29 4 EMKR EMCORE CORP
Common Stock
S - Sale X -3,943 85,177 -4.42 4.76 -18,769 405,443
2014-01-30 2014-01-29 4 EMKR EMCORE CORP
Common Stock
S - Sale X -126 89,120 -0.14 4.85 -611 432,232
2014-01-24 2014-01-23 4 EMKR EMCORE CORP
Restricted Stock Units
A - Award 75,000 75,000
2014-01-17 2014-01-16 4 EMKR EMCORE CORP
Common Stock
S - Sale X -5,037 89,246 -5.34 4.79 -24,127 427,488
2014-01-17 2014-01-16 4 EMKR EMCORE CORP
Common Stock
S - Sale X -170 94,283 -0.18 4.91 -834 462,496
2014-01-17 2014-01-15 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -13,334 26,666 -33.34
2014-01-17 2014-01-15 4 EMKR EMCORE CORP
Common Stock
M - Exercise 13,334 94,453 16.44
2013-12-31 2013-12-30 4 EMKR EMCORE CORP
Common Stock
S - Sale X -3,750 81,119 -4.42 5.04 -18,900 408,840
2013-11-26 2013-11-22 4 EMKR EMCORE CORP
Common Stock
A - Award 405 84,869 0.48 4.94 2,001 419,253
2013-11-12 2013-11-08 4 EMKR EMCORE CORP
Common Stock
A - Award 366 84,464 0.44 5.46 1,998 461,173
2013-10-29 2013-10-25 4 EMKR EMCORE CORP
Common Stock
A - Award 381 84,098 0.46 5.26 2,004 442,355
2013-10-15 2013-10-11 4 EMKR EMCORE CORP
Common Stock
A - Award 430 83,717 0.52 4.65 2,000 389,284
2013-09-30 2013-09-27 4 EMKR EMCORE CORP
Common Stock
A - Award 465 82,717 0.57 4.30 2,000 355,683
2013-09-17 2013-09-13 4 EMKR EMCORE CORP
Common Stock
A - Award 437 82,252 0.53 4.57 1,997 375,892
2013-09-03 2013-08-30 4 EMKR EMCORE CORP
Common Stock
A - Award 515 81,815 0.63 3.89 2,003 318,260
2013-08-26 2013-08-23 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,385 81,300 -1.68 3.84 -5,318 312,176
2013-08-26 2013-08-22 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -4,167 4,166 -50.01
2013-08-26 2013-08-22 4 EMKR EMCORE CORP
Common Stock
M - Exercise 4,167 82,685 5.31
2013-08-19 2013-08-16 4 EMKR EMCORE CORP
Common Stock
A - Award 511 78,518 0.66 3.91 1,998 307,005
2013-08-05 2013-08-02 4 EMKR EMCORE CORP
Common Stock
A - Award 464 78,007 0.60 4.31 2,000 336,210
2013-07-22 2013-07-19 4 EMKR EMCORE CORP
Common Stock
A - Award 496 77,543 0.64 4.03 1,999 312,498
2013-07-08 2013-07-05 4 EMKR EMCORE CORP
Common Stock
A - Award 534 77,047 0.70 3.75 2,002 288,926
2013-06-24 2013-06-21 4 EMKR EMCORE CORP
Common Stock
A - Award 529 76,513 0.70 3.78 2,000 289,219
2013-06-10 2013-06-07 4 EMKR EMCORE CORP
Common Stock
A - Award 537 75,984 0.71 3.72 1,998 282,660
2013-03-12 2013-03-11 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,075 77,706 -1.36 5.88 -6,321 456,911
2013-03-12 2013-03-08 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -3,334 6,666 -33.34
2013-03-12 2013-03-08 4 EMKR EMCORE CORP
Common Stock
M - Exercise 3,334 78,781 4.42
2013-02-01 2013-01-31 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,968 75,447 -2.54 5.61 -11,040 423,250
2013-02-01 2013-01-30 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -5,938 11,874 -33.34
2013-02-01 2013-01-30 4 EMKR EMCORE CORP
Common Stock
M - Exercise 5,938 77,415 8.31
2013-01-31 2013-01-29 4 EMKR EMCORE CORP
Common Stock
S - Sale X -4,838 71,477 -6.34 5.59 -27,059 399,771
2013-01-16 2013-01-15 4 EMKR EMCORE CORP
Restricted Stock Units
A - Award 40,000 40,000
2012-12-31 2012-12-28 4 EMKR EMCORE CORP
Common Stock
S - Sale X -3,436 76,315 -4.31 4.34 -14,898 330,887
2012-08-24 2012-08-23 4 EMKR EMCORE CORP
Common Stock
S - Sale X -1,353 79,751 -1.67 4.97 -6,727 396,514
2012-08-24 2012-08-22 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -4,167 8,333 -33.34
2012-08-24 2012-08-22 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise 4,167 81,104 5.42
2012-05-02 2012-04-27 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 326 76,937 0.43 4.60 1,500 353,910
2012-04-17 2012-04-13 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 356 76,611 0.47 4.22 1,502 323,298
2012-04-03 2012-03-30 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 314 76,255 0.41 4.77 1,498 363,736
2012-03-20 2012-03-08 4 EMKR EMCORE CORP
Restricted Stock Units
A - Award 10,000 10,000
2012-03-19 2012-03-16 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 344 75,941 0.46 4.37 1,503 331,862
2012-03-06 2012-03-02 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 370 75,597 0.49 4.05 1,498 306,168
2012-02-22 2012-02-17 4 EMKR EMCORE CORP
Emcore Common Stock
S - Sale -1,695 75,227 -2.20
2012-02-21 2012-02-17 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 281 76,922 0.37 5.33 1,498 409,994
2012-02-15 2012-02-14 4 EMKR EMCORE CORP
Restricted Stock Units
M - Exercise -23,750 71,250 -25.00
2012-02-15 2012-02-14 4 EMKR EMCORE CORP
Emcore Common Stock
M - Exercise 23,750 345,344 7.39
2012-02-07 2012-02-03 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 1,095 321,584 0.34 1.37 1,500 440,570
2012-02-06 2012-01-30 4 EMKR EMCORE CORP
Restricted Stock Units
A - Award 95,000 95,000
2012-02-06 2012-01-30 4 EMKR EMCORE CORP
Emcore Common Stock
S - Sale -20,034 320,489 -5.88 1.12 -22,398 358,307
2012-02-01 2011-08-22 4/A EMKR EMCORE CORP
Restricted Stock Units
A - Award 50,000 50,000
2012-01-24 2012-01-20 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 1,230 391,753 0.31 1.22 1,501 477,939
2012-01-10 2012-01-06 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 1,456 390,523 0.37 1.03 1,500 402,239
2011-02-23 2011-02-18 4 EMKR EMCORE CORP
Emcore Common Stock
A - Award 625 317,871 0.20 2.40 1,500 762,890
2006-12-27 3 EMKR EMCORE CORP
Common Stock
114,375
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)