James N Topper - Net Worth and Insider Trading
James N Topper Net Worth
The estimated net worth of James N Topper is at least $412 Million dollars as of 2024-06-05. James N Topper is the Director of Alpine Immune Sciences Inc and owns about 2,829,347 shares of Alpine Immune Sciences Inc (ALPN) stock worth over $184 Million. James N Topper is the Director of NewAmsterdam Pharma Co NV and owns about 6,809,429 shares of NewAmsterdam Pharma Co NV (NAMS) stock worth over $129 Million. James N Topper is also the Director, 10% Owner of AnaptysBio Inc and owns about 3,571,212 shares of AnaptysBio Inc (ANAB) stock worth over $85 Million. Besides these, James N Topper also holds Sierra Oncology Inc (SRRA) , Entasis Therapeutics Holdings Inc (ETTX) , Aptinyx Inc (APTX) , Allena Pharmaceuticals Inc (ALNAQ) . Details can be seen in James N Topper's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that James N Topper has not made any transactions after 2024-04-25 and currently still holds the listed stock(s).
Transaction Summary of James N Topper
James N Topper Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, James N Topper owns 19 companies in total, including Tarsus Pharmaceuticals Inc (TARS) , Phathom Pharmaceuticals Inc (PHAT) , and Aptinyx Inc (APTX) among others .
Click here to see the complete history of James N Topper’s form 4 insider trades.
Insider Ownership Summary of James N Topper
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
TARS | Tarsus Pharmaceuticals Inc | 2020-10-15 | 10 percent owner |
PHAT | Phathom Pharmaceuticals Inc | 2019-10-24 | director & 10 percent owner |
APTX | Aptinyx Inc | 2018-06-25 | director & 10 percent owner |
2020-02-27 | 10 percent owner | ||
2018-05-11 | director | ||
2020-01-30 | 10 percent owner | ||
2018-09-28 | director & 10 percent owner | ||
2024-04-25 | director | ||
2019-07-17 | 10 percent owner | ||
2017-11-06 | director & 10 percent owner | ||
2017-02-14 | director | ||
2015-06-24 | 10 percent owner | ||
2015-05-06 | 10 percent owner | ||
2007-06-27 | director & 10 percent owner | ||
2013-06-05 | director | ||
2005-12-14 | director | ||
2020-12-08 | director & Chief Executive Officer | ||
2022-04-28 | 10 percent owner | ||
2020-12-08 | director & Chief Executive Officer |
James N Topper Latest Holdings Summary
James N Topper currently owns a total of 7 stocks. Among these stocks, James N Topper owns 2,829,347 shares of Alpine Immune Sciences Inc (ALPN) as of April 25, 2024, with a value of $184 Million and a weighting of 44.64%. James N Topper owns 6,809,429 shares of NewAmsterdam Pharma Co NV (NAMS) as of March 26, 2024, with a value of $129 Million and a weighting of 31.27%. James N Topper also owns 3,571,212 shares of AnaptysBio Inc (ANAB) as of January 31, 2017, with a value of $85 Million and a weighting of 20.6%. The other 4 stocks Sierra Oncology Inc (SRRA) , Entasis Therapeutics Holdings Inc (ETTX) , Aptinyx Inc (APTX) , Allena Pharmaceuticals Inc (ALNAQ) have a combined weighting of 3.5% among all his current holdings.
Latest Holdings of James N Topper
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
ALPN | Alpine Immune Sciences Inc | 2024-04-25 | 2,829,347 | 64.97 | 183,822,675 |
NAMS | NewAmsterdam Pharma Co NV | 2024-03-26 | 6,809,429 | 18.91 | 128,766,302 |
ANAB | AnaptysBio Inc | 2017-01-31 | 3,571,212 | 23.75 | 84,816,285 |
SRRA | Sierra Oncology Inc | 2017-02-14 | 202,803 | 54.99 | 11,152,137 |
ETTX | Entasis Therapeutics Holdings Inc | 2018-09-28 | 1,349,953 | 2.19 | 2,956,397 |
APTX | Aptinyx Inc | 2018-06-25 | 3,190,079 | 0.10 | 306,248 |
ALNAQ | Allena Pharmaceuticals Inc | 2017-11-06 | 3,330,373 | 0.00 | 0 |
Holding Weightings of James N Topper
James N Topper Form 4 Trading Tracker
According to the SEC Form 4 filings, James N Topper has made a total of 1 transactions in Alpine Immune Sciences Inc (ALPN) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Alpine Immune Sciences Inc is the sale of 19 shares on April 25, 2024, which brought James N Topper around $1,227.
According to the SEC Form 4 filings, James N Topper has made a total of 1 transactions in NewAmsterdam Pharma Co NV (NAMS) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in NewAmsterdam Pharma Co NV is the acquisition of 8,429 shares on March 26, 2024, which cost James N Topper around $181,224.
According to the SEC Form 4 filings, James N Topper has made a total of 0 transactions in AnaptysBio Inc (ANAB) over the past 5 years. The most-recent trade in AnaptysBio Inc is the acquisition of 400,000 shares on January 31, 2017, which cost James N Topper around $6 Million.
More details on James N Topper's insider transactions can be found in the Insider Trading History of James N Topper table.Insider Trading History of James N Topper
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James N Topper Trading Performance
GuruFocus tracks the stock performance after each of James N Topper's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by James N Topper is 6.04%. GuruFocus also compares James N Topper's trading performance to market benchmark return within the same time period. The performance of stocks bought by James N Topper within 3 months outperforms 3 times out of 6 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how James N Topper's insider trading performs compared to the benchmark.
Performance of James N Topper
James N Topper Ownership Network
Ownership Network List of James N Topper
Ownership Network Relation of James N Topper
James N Topper Owned Company Details
What does Tarsus Pharmaceuticals Inc do?
Who are the key executives at Tarsus Pharmaceuticals Inc?
James N Topper is the 10 percent owner of Tarsus Pharmaceuticals Inc. Other key executives at Tarsus Pharmaceuticals Inc include Chief Human Resources Officer Dianne C. Whitfield , General Counsel Bryan Wahl , and Chief Operating Officer Seshadri Neervannan .
Tarsus Pharmaceuticals Inc (TARS) Insider Trades Summary
Over the past 18 months, James N Topper made no insider transaction in Tarsus Pharmaceuticals Inc (TARS). Other recent insider transactions involving Tarsus Pharmaceuticals Inc (TARS) include a net sale of 329,867 shares made by Bobak R. Azamian , a net sale of 26,966 shares made by Leonard M. Greenstein , and a net sale of 14,020 shares made by Aziz Mottiwala .
In summary, during the past 3 months, insiders sold 28,810 shares of Tarsus Pharmaceuticals Inc (TARS) in total and bought 0 shares, with a net sale of 28,810 shares. During the past 18 months, 414,983 shares of Tarsus Pharmaceuticals Inc (TARS) were sold and 10,506 shares were bought by its insiders, resulting in a net sale of 404,477 shares.
Tarsus Pharmaceuticals Inc (TARS)'s detailed insider trading history can be found in Insider Trading Tracker table.
Tarsus Pharmaceuticals Inc Insider Transactions
James N Topper Mailing Address
Above is the net worth, insider trading, and ownership report for James N Topper. You might contact James N Topper via mailing address: 550 Hamilton Avenue, Suite 100, Palo Alto Ca 94301.