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Gregory K. Chow Insider Profile
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Gregory K. Chow, EVP & CFO at Aptose Biosciences, holds 19.75K shares in Sutro Biopharma (Ticker: STRO), holds 232.85K shares in Aptose Biosciences (Ticker: APTOF). Most recently, Gregory K. Chow Bought ― shares of Sutro Biopharma on Oct 16, 2025 for an estimated value of $16.00K.
Profitable Transactions
4 out of 4 Profitable Transactions
Average Return
+130.30%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that Gregory K. Chow holds in companies
Most Profitable Insider Trade
Stock:
Rating:Informative Buy
Date:Jun 07, 2019 - Jun 07, 2020
Return:+284.20%
The most profitable trade made by Gregory K. Chow
Gregory K. Chow's Trading History
Aptose Biosciences
Jul 10, 2020
EVP & CFO
Informative Sell
766.34K
$325.98K
Sutro Biopharma
Oct 16, 2025
CFO
Informative Buy
16.00K
$19.95K
List of latest transactions for each holding click on a transaction to see Gregory K. Chow's performance on stock
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Gregory K. Chow insider profile FAQ
What is the percentage of profitable transactions made by Gregory K. Chow?
The percentage of profitable transactions made by Gregory K. Chow is 100%.
What is the average return per transaction made by Gregory K. Chow?
The average return per transaction made by Gregory K. Chow is 130.30%.
What stocks does Gregory K. Chow hold?
Gregory K. Chow holds: APTOF, STRO stocks.
What was Gregory K. Chow’s latest transaction?
Gregory K. Chow latest transaction was an Informative Buy of $16.00K.
What was Gregory K. Chow's most profitable transaction?
Gregory K. Chow’s most profitable transaction was an Informative Buy of APTOF stock on June 7, 2019. The return on the trade was 284.20%.
What is Gregory K. Chow's role in Aptose Biosciences?
Gregory K. Chow's role in Aptose Biosciences is EVP & CFO.
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