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Jack Zhang Insider Profile

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Jack Zhang, CEO & Chief Scientific Officer, Director, Ten Percent Owner at Amphastar Pharmaceuticals, holds 10.49M shares in Amphastar Pharmaceuticals (Ticker: AMPH).
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Jack Zhang

Jack Zhang
Amphastar Pharmaceuticals (AMPH)
CEO & Chief Scientific Officer, Director, Ten Percent Owner

Ranked #15,988 out of 97,825 Corporate Insiders

Profitable Transactions

88%
7 out of 8 Profitable Transactions

Average Return

+11.20%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark

Insider Holdings

$457M
100.00%
A breakdown of Jack Zhang's holdings

Insider Roles

Amphastar Pharmaceuticals
(AMPH)
CEO & Chief Scientific Officer, Director, Ten Percent Owner
Roles that Jack Zhang holds in companies

Most Profitable Insider Trade

Stock:
Amphastar Pharmaceuticals
(AMPH)
Rating:Informative Buy
Date:Aug 18, 2015 - Aug 18, 2016
Return:+33.50%
The most profitable trade made by Jack Zhang

Jack Zhang's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
Amphastar Pharmaceuticals
Mar 19, 2024
CEO & Chief Scientific Officer, Director, Ten Percent Owner
Uninformative Sell
27.30M
$456.57M
Success Rate for
AMPH
7 out of 8 profitable transactions on
AMPH
88%
Average Return for
AMPH
Average return per transaction on
AMPH
+11.29%
Date
Transaction
Amount
No. of Shares
Price per Share
Profit
Link to Report
Mar 27, 2015
Uninformative Buy
$0.00
-
$0.00
Jun 16, 2015
Uninformative Sell
$739.27K
-
$12.97
Jun 16, 2015
Uninformative Sell
$76.22K
-
$16.29
Jul 03, 2018
Uninformative Sell
$6.93M
-
$12.02
Aug 18, 2015
Informative Buy
$220.00K
-
$12.97
+33.50%
List of latest transactions for each holding click on a transaction to see Jack Zhang's performance on stock

Jack Zhang insider profile FAQ

What is the percentage of profitable transactions made by Jack Zhang?
The percentage of profitable transactions made by Jack Zhang is 88%.
    What is the average return per transaction made by Jack Zhang?
    The average return per transaction made by Jack Zhang is 11.20%.
      What stocks does Jack Zhang hold?
      Jack Zhang holds: AMPH stocks.
        What was Jack Zhang’s latest transaction?
        Jack Zhang latest transaction was an Uninformative Sell of $27.30M.
          What was Jack Zhang's most profitable transaction?
          Jack Zhang’s most profitable transaction was an Informative Buy of AMPH stock on August 18, 2015. The return on the trade was 33.50%.
            What is Jack Zhang's role in Amphastar Pharmaceuticals?
            Jack Zhang's role in Amphastar Pharmaceuticals is CEO & Chief Scientific Officer, Director, Ten Percent Owner.
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