Howard Lee - Net Worth and Insider Trading
Howard Lee Net Worth
The estimated net worth of Howard Lee is at least $3 Million dollars as of 2025-04-25. Howard Lee is the Director of Amphastar Pharmaceuticals Inc and owns about 138,776 shares of Amphastar Pharmaceuticals Inc (AMPH) stock worth over $3 Million. Details can be seen in Howard Lee's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Howard Lee has not made any transactions after 2022-06-06 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Howard Lee
Howard Lee Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Howard Lee owns 1 companies in total, including Amphastar Pharmaceuticals Inc (AMPH) .
Click here to see the complete history of Howard Lee’s form 4 insider trades.
Insider Ownership Summary of Howard Lee
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
AMPH | Amphastar Pharmaceuticals Inc | 2022-06-06 | director |
Howard Lee Latest Holdings Summary
Howard Lee currently owns a total of 1 stock. Howard Lee owns 138,776 shares of Amphastar Pharmaceuticals Inc (AMPH) as of June 6, 2022, with a value of $3 Million.
Latest Holdings of Howard Lee
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
AMPH | Amphastar Pharmaceuticals Inc | 2022-06-06 | 138,776 | 24.07 | 3,340,338 |
Holding Weightings of Howard Lee
Howard Lee Form 4 Trading Tracker
According to the SEC Form 4 filings, Howard Lee has made a total of 5 transactions in Amphastar Pharmaceuticals Inc (AMPH) over the past 5 years, including 0 buys and 5 sells. The most-recent trade in Amphastar Pharmaceuticals Inc is the sale of 10,291 shares on June 6, 2022, which brought Howard Lee around $388,897.
Insider Trading History of Howard Lee
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Howard Lee Trading Performance
Howard Lee Ownership Network
Ownership Network List of Howard Lee
Ownership Network Relation of Howard Lee

Howard Lee Owned Company Details
What does Amphastar Pharmaceuticals Inc do?
Who are the key executives at Amphastar Pharmaceuticals Inc?
Howard Lee is the director of Amphastar Pharmaceuticals Inc. Other key executives at Amphastar Pharmaceuticals Inc include CFO & SVP & Treasurer William J Peters , EVP & Production Rong Zhou , and SVP Corp Admin Center Yakob Liawatidewi .
Amphastar Pharmaceuticals Inc (AMPH) Insider Trades Summary
Over the past 18 months, Howard Lee made no insider transaction in Amphastar Pharmaceuticals Inc (AMPH). Other recent insider transactions involving Amphastar Pharmaceuticals Inc (AMPH) include a net sale of 11,500 shares made by Floyd F. Petersen , a net sale of 102,921 shares made by William J Peters , and a net sale of 41,101 shares made by Richard K Prins .
In summary, during the past 3 months, insiders sold 5,731 shares of Amphastar Pharmaceuticals Inc (AMPH) in total and bought 0 shares, with a net sale of 5,731 shares. During the past 18 months, 561,145 shares of Amphastar Pharmaceuticals Inc (AMPH) were sold and 0 shares were bought by its insiders, resulting in a net sale of 561,145 shares.
Amphastar Pharmaceuticals Inc (AMPH)'s detailed insider trading history can be found in Insider Trading Tracker table.
Amphastar Pharmaceuticals Inc Insider Transactions
Howard Lee Mailing Address
Above is the net worth, insider trading, and ownership report for Howard Lee. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Howard Lee's mailing address is: Taiwan F4 00000.