Frank Kung - Net Worth and Insider Trading

Frank Kung Net Worth

The estimated net worth of Frank Kung is at least $92 Million dollars as of 2023-09-28. Frank Kung is the Director of Sagent Pharmaceuticals Inc and owns about 4,180,791 shares of Sagent Pharmaceuticals Inc (SGNT) stock worth over $91 Million. Frank Kung is also the Director of Amyris Inc and owns about 7,830,828 shares of Amyris Inc (AMRSQ) stock worth over $564,603. Details can be seen in Frank Kung's Latest Holdings Summary section.

Transaction Summary of Frank Kung


Frank Kung Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Frank Kung owns 3 companies in total, including Amyris Inc (AMRSQ) , Sagent Pharmaceuticals Inc (SGNT) , and Soleno Therapeutics Inc (SLNO) .

Click here to see the complete history of Frank Kung’s form 4 insider trades.

Insider Ownership Summary of Frank Kung

Ticker Comapny Transaction Date Type of Owner
AMRSQ Amyris Inc 2018-08-01 director
SGNT Sagent Pharmaceuticals Inc 2015-04-09 director
SLNO Soleno Therapeutics Inc 2014-11-12 10 percent owner

Frank Kung Latest Holdings Summary

Frank Kung currently owns a total of 2 stocks. Among these stocks, Frank Kung owns 4,180,791 shares of Sagent Pharmaceuticals Inc (SGNT) as of September 16, 2013, with a value of $91 Million and a weighting of 99.38%. Frank Kung also owns 7,830,828 shares of Amyris Inc (AMRSQ) as of September 21, 2022, with a value of $564,603 and a weighting of 0.62%.

Latest Holdings of Frank Kung

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
SGNT Sagent Pharmaceuticals Inc 2013-09-16 4,180,791 21.76 90,974,012
AMRSQ Amyris Inc 2022-09-21 7,830,828 0.07 564,603

Holding Weightings of Frank Kung

Frank Kung Form 4 Trading Tracker

According to the SEC Form 4 filings, Frank Kung has made a total of 0 transactions in Sagent Pharmaceuticals Inc (SGNT) over the past 5 years. The most-recent trade in Sagent Pharmaceuticals Inc is the sale of 1,161,717 shares on September 16, 2013, which brought Frank Kung around $25 Million.

According to the SEC Form 4 filings, Frank Kung has made a total of 6 transactions in Amyris Inc (AMRSQ) over the past 5 years, including 2 buys and 4 sells. The most-recent trade in Amyris Inc is the sale of 600,000 shares on September 21, 2022, which brought Frank Kung around $2 Million.

Insider Trading History of Frank Kung

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.

Frank Kung Trading Performance

GuruFocus tracks the stock performance after each of Frank Kung's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Frank Kung is -37.22%. GuruFocus also compares Frank Kung's trading performance to market benchmark return within the same time period. The performance of stocks bought by Frank Kung within 3 months outperforms 0 times out of 2 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how Frank Kung'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 Frank Kung

Average Relative Return


Average relative return per transaction

Outperforming Transactions


1 out of 2 outperforming transactions.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Relative Return(%) -8.89 -37.22 -28.44 90.6 24.48 -26.72
Relative Return to S&P 500(%) -5.17 -42.2 -37.95 74.44 7.95 -37.8

Frank Kung Ownership Network

Ownership Network List of Frank Kung

No Data

Ownership Network Relation of Frank Kung

Frank Kung Owned Company Details

What does Amyris Inc do?

Amyris Inc is an industrial biotechnology company. It is engaged in the engineering, manufacturing, and sales of products in a variety of consumer and industrial markets, including cosmetics, flavors and fragrances, solvents and cleaners, polymers, lubricants, healthcare products, and fuels. The business operations are spread across the world with the majority of the revenues generated in the United States. The company generates revenue from the sale of renewable products, licenses of and royalties from intellectual property, and grants, and collaborative research and development services.

Who are the key executives at Amyris Inc?

Frank Kung is the director of Amyris Inc. Other key executives at Amyris Inc include Chief Restructuring Officer Philip J. Gund , CHIEF ACCOUNTING OFFICER Elizabeth E. Dreyer , and director & President and CEO John Melo .

Amyris Inc (AMRSQ) Insider Trades Summary

Over the past 18 months, Frank Kung made 3 insider transaction in Amyris Inc (AMRSQ) with a net sale of 4,498,776. Other recent insider transactions involving Amyris Inc (AMRSQ) include a net sale of 107,458 shares made by Nicole Kelsey , a net sale of 81,792 shares made by Hermanus Kieftenbeld , and a net sale of 253,789 shares made by Eduardo Alvarez .

In summary, during the past 3 months, insiders sold 0 shares of Amyris Inc (AMRSQ) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 5,003,696 shares of Amyris Inc (AMRSQ) were sold and 17,155 shares were bought by its insiders, resulting in a net sale of 4,986,541 shares.

Amyris Inc (AMRSQ)'s detailed insider trading history can be found in Insider Trading Tracker table.


Amyris Inc Insider Transactions

No Available Data

Frank Kung Mailing Address

Above is the net worth, insider trading, and ownership report for Frank Kung. You might contact Frank Kung via mailing address: C/o Vivo Capital, 505, Palo Alto Ca 94301.

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