Introduction

This page provides a comprehensive analysis of the known insider trading history of Andrew James King. 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 Andrew James King has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
See Remarks 344,863
US:KDNY / Chinook Therapeutics Inc Chief Scientific Officer 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 Andrew James King. 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 Andrew James King 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
2025-05-01 3 JBIO Jade Biosciences, Inc.
Common Stock
344,863
2023-08-11 2023-08-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
D - Sale to Issuer -19,157 0 -100.00
2023-08-01 2023-08-01 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale -1,168 19,157 -5.75 39.03 -45,586 747,679
2023-08-01 2023-07-29 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 3,333 20,325 19.62
2023-04-05 2023-04-03 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -5,000 16,992 -22.74 23.34 -116,718 396,653
2023-04-05 2023-04-03 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 2,500 21,992 12.83 0.35 875 7,697
2023-02-15 2023-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale -2,392 19,492 -10.93 23.75 -56,806 462,906
2023-02-15 2023-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 6,803 21,884 45.11
2023-02-02 2023-01-31 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale -3,244 15,081 -17.70 24.68 -80,069 372,232
2023-02-02 2023-01-31 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 8,333 18,325 83.40
2023-01-04 2023-01-03 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -10,000 9,992 -50.02 25.82 -258,183 257,976
2023-01-04 2023-01-03 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 7,500 19,992 60.04 0.35 2,625 6,997
2022-10-11 2022-10-06 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale -3,557 12,492 -22.16 19.69 -70,044 245,992
2022-10-11 2022-10-06 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 10,152 16,049 172.16
2022-08-05 2022-08-04 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -5,000 5,897 -45.88 20.00 -100,000 117,940
2022-08-05 2022-08-04 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 5,000 10,897 84.79 0.35 1,750 3,814
2022-07-13 2022-07-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -5,000 5,897 -45.88 18.09 -90,468 106,698
2022-07-13 2022-07-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 5,000 10,897 84.79 0.35 1,750 3,814
2022-04-13 2022-04-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Stock Option (right to buy)
M - Exercise -5,000 63,047 -7.35
2022-04-13 2022-04-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -5,000 5,897 -45.88 15.36 -76,812 90,592
2022-04-13 2022-04-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 5,000 10,897 84.79 0.35 1,750 3,814
2022-02-23 2022-02-18 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -2,500 5,897 -29.77 13.00 -32,500 76,661
2022-02-14 2022-02-11 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale -2,498 8,397 -22.93 12.74 -31,827 106,987
2022-02-14 2022-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Restricted Stock Units (RSU)
M - Exercise -6,801 13,605 -33.33
2022-02-14 2022-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 6,801 10,895 166.12
2022-02-11 2022-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Stock Option (right to buy)
M - Exercise -2,500 68,047 -3.54
2022-02-11 2022-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -2,500 4,094 -37.91 13.31 -33,275 54,491
2022-02-11 2022-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 2,500 6,594 61.06 0.35 875 2,308
2022-02-02 2022-01-31 4 KDNY CHINOOK THERAPEUTICS, INC.
Restricted Stock (RSU)(Common Stock)
A - Award 25,000 25,000
2022-02-02 2022-01-31 4 KDNY CHINOOK THERAPEUTICS, INC.
Stock Option (right to buy)
A - Award 100,000 100,000
2021-11-12 2021-11-09 4 KDNY CHINOOK THERAPEUTICS, INC.
Stock Option (right to buy)
M - Exercise -2,500 70,547 -3.42
2021-11-12 2021-11-09 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
S - Sale X -5,000 4,094 -54.98 13.53 -67,660 55,400
2021-11-12 2021-11-09 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 2,500 9,094 37.91 0.35 875 3,183
2021-10-08 2021-10-06 4 KDNY CHINOOK THERAPEUTICS, INC.
Restricted Stock Units (RSU)
M - Exercise -10,151 20,304 -33.33
2021-10-08 2021-10-06 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
F - Taxes -3,557 6,594 -35.04 12.37 -43,995 81,559
2021-10-08 2021-10-06 4 KDNY CHINOOK THERAPEUTICS, INC.
Common Stock
M - Exercise 10,151 10,151
2021-06-09 2021-06-07 4 KDNY CHINOOK THERAPEUTICS, INC.
Employee Stock Option (Right to Buy)
A - Award 21,500 21,500
2021-02-12 2021-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Restricted Stock (RSU)(Common Stock)
A - Award 20,406 20,406
2021-02-12 2021-02-10 4 KDNY CHINOOK THERAPEUTICS, INC.
Stock Option (right to buy)
A - Award 60,000 60,000
2020-10-07 2020-10-06 4 KDNY ADURO BIOTECH, INC.
Restricted Stock Units (RSU)(Common Stock)
A - Award 30,455 30,455
2020-10-07 2020-10-06 4 KDNY ADURO BIOTECH, INC.
Stock Option (right to buy)
A - Award 89,545 89,545
2020-10-07 2020-10-05 4 KDNY ADURO BIOTECH, INC.
Stock Option (right to buy)
A - Award 73,047 73,047
2020-10-07 2020-10-05 4 KDNY ADURO BIOTECH, INC.
Stock Option (right to buy)
A - Award 73,047 73,047
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)