Introduction

This page provides a comprehensive analysis of the known insider trading history of Joshua L Smiley. 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 Joshua L Smiley has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:ZLAB / Zai Lab Limited - Depositary Receipt (Common Stock) See Remarks 76,604
US:LLY / Eli Lilly and Company 77,659
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Joshua L Smiley. 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 Trading History

This table shows the complete list of insider trades made by Joshua L Smiley 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
2025-08-19 2025-08-18 4 ZLAB Zai Lab Ltd
American Depositary Shares
S - Sale -6,641 76,604 -7.98 36.24 -240,643 2,775,823
2025-08-19 2025-08-15 4 ZLAB Zai Lab Ltd
American Depositary Shares
M - Exercise 15,900 83,245 23.61
2025-04-07 2025-04-04 4 ZLAB Zai Lab Ltd
American Depositary Shares
S - Sale -3,354 67,345 -4.74 33.11 -111,044 2,229,658
2025-04-07 2025-04-03 4 ZLAB Zai Lab Ltd
American Depositary Shares
M - Exercise 7,145 70,699 11.24
2025-04-03 2025-04-02 4 ZLAB Zai Lab Ltd
American Depositary Shares
S - Sale -11,740 63,554 -15.59 35.89 -421,396 2,281,207
2025-04-03 2025-04-01 4 ZLAB Zai Lab Ltd
American Depositary Shares
M - Exercise 32,062 75,294 74.16
2024-08-19 2024-08-16 4 ZLAB Zai Lab Ltd
American Depositary Shares
S - Sale -4,352 43,232 -9.15 16.67 -72,561 720,807
2024-08-19 2024-08-15 4 ZLAB Zai Lab Ltd
American Depositary Shares
M - Exercise 15,900 47,584 50.18
2024-05-15 2024-05-13 4 ZLAB Zai Lab Ltd
American Depositary Shares
P - Purchase X 3,000 31,684 10.46 21.40 64,200 678,038
2024-04-05 2024-04-04 4 ZLAB Zai Lab Ltd
American Depositary Shares
S - Sale -1,988 28,684 -6.48 15.67 -31,158 449,564
2024-04-05 2024-04-03 4 ZLAB Zai Lab Ltd
American Depositary Shares
M - Exercise 7,145 30,672 30.37 15.90 113,606 487,685
2024-03-04 2024-03-01 4 ZLAB Zai Lab Ltd
American Depositary Shares
P - Purchase X 3,000 23,527 14.61 20.83 62,490 490,067
2023-12-18 2023-12-14 4 ZLAB Zai Lab Ltd
American Depositary Shares
P - Purchase X 4,000 20,527 24.20 29.90 119,600 613,757
2023-11-16 2023-11-16 4 ZLAB Zai Lab Ltd
American Depositary Shares
P - Purchase X 5,000 16,527 43.38 26.93 134,650 445,072
2023-08-17 2023-08-15 4 ZLAB Zai Lab Ltd
American Depositary Shares
F - Taxes -4,373 11,527 -27.50 24.52 -107,226 282,642
2023-08-17 2023-08-15 4 ZLAB Zai Lab Ltd
American Depositary Shares
M - Exercise 15,900 15,900
2021-02-10 2021-02-08 4 LLY ELI LILLY & Co
Common Stock
A - Award 25,409 77,659 48.63 205.77 5,228,410 15,979,892
2021-02-03 2021-02-01 4 LLY ELI LILLY & Co
Restricted Stock Unit
M - Exercise -19,266 0 -100.00
2021-02-03 2021-02-01 4 LLY ELI LILLY & Co
Common Stock
F - Taxes -8,452 52,250 -13.92 207.97 -1,757,762 10,866,432
2021-02-03 2021-02-01 4 LLY ELI LILLY & Co
Common Stock
M - Exercise 19,266 60,702 46.50
2020-10-05 2020-10-01 4 LLY ELI LILLY & Co
Restricted Stock Unit
M - Exercise -7,947 0 -100.00
2020-10-05 2020-10-01 4 LLY ELI LILLY & Co
Common Stock
F - Taxes -3,482 41,436 -7.75 148.02 -515,406 6,133,357
2020-10-05 2020-10-01 4 LLY ELI LILLY & Co
Common Stock
M - Exercise 7,947 44,918 21.50
2020-02-13 2020-02-11 4 LLY ELI LILLY & Co
Restricted Stock Unit
A - Award 19,266 19,266
2020-02-13 2020-02-11 4 LLY ELI LILLY & Co
Common Stock
A - Award 5,447 36,971 17.28 144.25 785,730 5,333,067
2019-10-28 2019-10-25 4 LLY ELI LILLY & Co
Common Stock
P - Purchase 929 31,524 3.04 107.59 99,951 3,391,667
2019-07-15 2019-07-15 4 LLY LILLY ELI & CO
Common Stock
P - Purchase X 185 30,595 0.61 108.47 20,067 3,318,640
2019-06-05 2019-06-05 4 LLY LILLY ELI & CO
Common Stock
P - Purchase 426 30,410 1.42 118.03 50,281 3,589,292
2019-02-20 2019-02-04 4/A LLY LILLY ELI & CO
Common Stock
A - Award 9,955 29,984 49.70 120.17 1,196,292 3,603,177
2019-02-06 2019-02-04 4 LLY LILLY ELI & CO
Common Stock
A - Award 9,954 29,983 49.70 120.17 1,196,172 3,603,057
2018-03-20 2018-03-16 4 LLY LILLY ELI & CO
Common Stock
S - Sale X -3,000 20,029 -13.03 79.20 -237,600 1,586,297
2018-01-31 2018-01-29 4 LLY LILLY ELI & CO
Common Stock
A - Award 7,202 23,029 45.50 87.60 630,895 2,017,340
2018-01-10 3 LLY LILLY ELI & CO
Common Stock
33,433
2018-01-10 3 LLY LILLY ELI & CO
Common Stock
19,385
2018-01-10 3 LLY LILLY ELI & CO
Common Stock
33,433
2018-01-10 3 LLY LILLY ELI & CO
Common Stock
19,385
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)