Jack Y. Zhang - Net Worth and Insider Trading

Jack Y. Zhang Net Worth

The estimated net worth of Jack Y. Zhang is at least $427 Million dollars as of 2024-04-24. Jack Y. Zhang is the CEO & Chief Scientific Officer, 10% Owner of Amphastar Pharmaceuticals Inc and owns about 10,435,341 shares of Amphastar Pharmaceuticals Inc (AMPH) stock worth over $427 Million. Details can be seen in Jack Y. Zhang's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that Jack Y. Zhang has not made any transactions after 2022-05-20 and currently still holds the listed stock(s).

Transaction Summary of Jack Y. Zhang

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Jack Y. Zhang Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Jack Y. Zhang owns 1 companies in total, including Amphastar Pharmaceuticals Inc (AMPH) .

Click here to see the complete history of Jack Y. Zhang’s form 4 insider trades.

Insider Ownership Summary of Jack Y. Zhang

Ticker Comapny Transaction Date Type of Owner
AMPH Amphastar Pharmaceuticals Inc 2022-05-20 director & 10 percent owner & CEO & Chief Scientific Officer

Jack Y. Zhang Latest Holdings Summary

Jack Y. Zhang currently owns a total of 1 stock. Jack Y. Zhang owns 10,435,341 shares of Amphastar Pharmaceuticals Inc (AMPH) as of May 20, 2022, with a value of $427 Million.

Latest Holdings of Jack Y. Zhang

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
AMPH Amphastar Pharmaceuticals Inc 2022-05-20 10,435,341 40.91 426,909,800

Holding Weightings of Jack Y. Zhang


Jack Y. Zhang Form 4 Trading Tracker

According to the SEC Form 4 filings, Jack Y. Zhang has made a total of 9 transactions in Amphastar Pharmaceuticals Inc (AMPH) over the past 5 years, including 0 buys and 9 sells. The most-recent trade in Amphastar Pharmaceuticals Inc is the sale of 10,650 shares on May 20, 2022, which brought Jack Y. Zhang around $364,336.

Insider Trading History of Jack Y. Zhang

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.
Total 0
  • 1
Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

Jack Y. Zhang Trading Performance

GuruFocus tracks the stock performance after each of Jack Y. Zhang's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Jack Y. Zhang is 12.75%. GuruFocus also compares Jack Y. Zhang's trading performance to market benchmark return within the same time period. The performance of stocks bought by Jack Y. Zhang within 3 months outperforms 1 times out of 1 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how Jack Y. Zhang's insider trading performs compared to the benchmark.

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

Performance of Jack Y. Zhang

Average Return

39.25%

Average return per transaction

Outperforming Transactions

100%

1 out of 1 outperforming transactions.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Return(%) 5.5 12.75 29.19 39.25 6.6 7.68
Relative Return to S&P 500(%) 3.4 8.41 28.68 33.6 4.04 -7.64

Jack Y. Zhang Ownership Network

Ownership Network List of Jack Y. Zhang

No Data

Ownership Network Relation of Jack Y. Zhang


Jack Y. Zhang Owned Company Details

What does Amphastar Pharmaceuticals Inc do?

Who are the key executives at Amphastar Pharmaceuticals Inc?

Jack Y. Zhang is the director & 10 percent owner & CEO & Chief Scientific Officer of Amphastar Pharmaceuticals Inc. Other key executives at Amphastar Pharmaceuticals Inc include CFO & SVP & Treasurer William J Peters , director & 10 percent owner & COO and Chief Scientist Mary Z. Luo , and EVP & Production Rong Zhou .

Amphastar Pharmaceuticals Inc (AMPH) Insider Trades Summary

Over the past 18 months, Jack Y. Zhang made no insider transaction in Amphastar Pharmaceuticals Inc (AMPH). Other recent insider transactions involving Amphastar Pharmaceuticals Inc (AMPH) include a net sale of 11,491 shares made by Floyd F. Petersen , a net sale of 192,937 shares made by William J Peters , and a net sale of 27,830 shares made by Rong Zhou .

In summary, during the past 3 months, insiders sold 32,136 shares of Amphastar Pharmaceuticals Inc (AMPH) in total and bought 0 shares, with a net sale of 32,136 shares. During the past 18 months, 682,695 shares of Amphastar Pharmaceuticals Inc (AMPH) were sold and 0 shares were bought by its insiders, resulting in a net sale of 682,695 shares.

Amphastar Pharmaceuticals Inc (AMPH)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Amphastar Pharmaceuticals Inc Insider Transactions

No Available Data

Jack Y. Zhang Mailing Address

Above is the net worth, insider trading, and ownership report for Jack Y. Zhang. You might contact Jack Y. Zhang via mailing address: 11570 6th Street, Rancho Cucamonga Ca 91730.

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