Beth C Seidenberg - Net Worth and Insider Trading
Beth C Seidenberg Net Worth
The estimated net worth of Beth C Seidenberg is at least $460 Million dollars as of 2025-03-03. Beth C Seidenberg is the Director of Tesaro Inc and owns about 2,934,321 shares of Tesaro Inc (TSRO) stock worth over $220 Million. Beth C Seidenberg is the Director of Progyny Inc and owns about 8,984,120 shares of Progyny Inc (PGNY) stock worth over $202 Million. Beth C Seidenberg is also the Director, 10% Owner of Acelyrin Inc and owns about 9,850,729 shares of Acelyrin Inc (SLRN) stock worth over $26 Million. Besides these, Beth C Seidenberg also holds Sagimet Biosciences Inc (SGMT) , Vera Therapeutics Inc (VERA) , BioCryst Pharmaceuticals Inc (BCRX) , Atara Biotherapeutics Inc (ATRA) . Details can be seen in Beth C Seidenberg'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 Beth C Seidenberg has not made any transactions after 2024-10-28 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
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Transaction Summary of Beth C Seidenberg
Beth C Seidenberg Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Beth C Seidenberg owns 10 companies in total, including Progyny Inc (PGNY) , Atara Biotherapeutics Inc (ATRA) , and Epizyme Inc (EPZM) among others .
Click here to see the complete history of Beth C Seidenberg’s form 4 insider trades.
Insider Ownership Summary of Beth C Seidenberg
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
PGNY | Progyny Inc | 2021-11-17 | director |
ATRA | Atara Biotherapeutics Inc | 2021-06-08 | director |
EPZM | Epizyme Inc | 2019-03-31 | director |
![]() | ![]() | 2019-01-22 | director |
![]() | ![]() | 2018-06-22 | director |
![]() | ![]() | 2006-05-03 | director |
![]() | ![]() | 2003-07-01 | Sr VP Development |
![]() | ![]() | 2024-10-28 | director |
![]() | ![]() | 2023-05-09 | director & 10 percent owner |
![]() | ![]() | 2023-07-18 | director |
Beth C Seidenberg Latest Holdings Summary
Beth C Seidenberg currently owns a total of 7 stocks. Among these stocks, Beth C Seidenberg owns 2,934,321 shares of Tesaro Inc (TSRO) as of March 18, 2016, with a value of $220 Million and a weighting of 47.76%. Beth C Seidenberg owns 8,984,120 shares of Progyny Inc (PGNY) as of April 15, 2021, with a value of $202 Million and a weighting of 43.96%. Beth C Seidenberg also owns 9,850,729 shares of Acelyrin Inc (SLRN) as of May 9, 2023, with a value of $26 Million and a weighting of 5.75%. The other 4 stocks Sagimet Biosciences Inc (SGMT) , Vera Therapeutics Inc (VERA) , BioCryst Pharmaceuticals Inc (BCRX) , Atara Biotherapeutics Inc (ATRA) have a combined weighting of 2.53% among all his current holdings.
Latest Holdings of Beth C Seidenberg
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
TSRO | Tesaro Inc | 2016-03-18 | 2,934,321 | 74.96 | 219,956,702 |
PGNY | Progyny Inc | 2021-04-15 | 8,984,120 | 22.53 | 202,412,224 |
SLRN | Acelyrin Inc | 2023-05-09 | 9,850,729 | 2.69 | 26,498,461 |
SGMT | Sagimet Biosciences Inc | 2023-07-18 | 2,031,118 | 3.72 | 7,545,603 |
VERA | Vera Therapeutics Inc | 2024-10-28 | 135,565 | 29.90 | 4,053,394 |
BCRX | BioCryst Pharmaceuticals Inc | 2006-05-03 | 3,000 | 8.60 | 25,800 |
ATRA | Atara Biotherapeutics Inc | 2014-10-15 | 892 | 6.92 | 6,173 |
Holding Weightings of Beth C Seidenberg
Beth C Seidenberg Form 4 Trading Tracker
According to the SEC Form 4 filings, Beth C Seidenberg has made a total of 0 transactions in Tesaro Inc (TSRO) over the past 5 years. The most-recent trade in Tesaro Inc is the acquisition of 1,420,858 shares on March 18, 2016, which cost Beth C Seidenberg around $50 Million.
According to the SEC Form 4 filings, Beth C Seidenberg has made a total of 4 transactions in Progyny Inc (PGNY) over the past 5 years, including 0 buys and 4 sells. The most-recent trade in Progyny Inc is the sale of 18,127 shares on April 15, 2021, which brought Beth C Seidenberg around $912,151.
According to the SEC Form 4 filings, Beth C Seidenberg has made a total of 1 transactions in Acelyrin Inc (SLRN) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Acelyrin Inc is the acquisition of 1,310,000 shares on May 9, 2023, which cost Beth C Seidenberg around $24 Million.
More details on Beth C Seidenberg's insider transactions can be found in the Insider Trading History of Beth C Seidenberg table.Insider Trading History of Beth C Seidenberg
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Beth C Seidenberg Trading Performance
GuruFocus tracks the stock performance after each of Beth C Seidenberg's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Beth C Seidenberg is 36.09%. GuruFocus also compares Beth C Seidenberg's trading performance to market benchmark return within the same time period. The performance of stocks bought by Beth C Seidenberg within 3 months outperforms 11 times out of 15 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Beth C Seidenberg's insider trading performs compared to the benchmark.
Performance of Beth C Seidenberg
Beth C Seidenberg Ownership Network
Ownership Network List of Beth C Seidenberg
Ownership Network Relation of Beth C Seidenberg
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Beth C Seidenberg Owned Company Details
What does Progyny Inc do?
Who are the key executives at Progyny Inc?
Beth C Seidenberg is the director of Progyny Inc. Other key executives at Progyny Inc include director & Executive Chairman David J Schlanger , Chief Executive Officer Peter Anevski , and President Michael E Sturmer .
Progyny Inc (PGNY) Insider Trades Summary
Over the past 18 months, Beth C Seidenberg made no insider transaction in Progyny Inc (PGNY). Other recent insider transactions involving Progyny Inc (PGNY) include a net sale of 411,000 shares made by David J Schlanger , a net sale of 47,686 shares made by Michael E Sturmer , and a net sale of 73,881 shares made by Mark S. Livingston .
In summary, during the past 3 months, insiders sold 0 shares of Progyny Inc (PGNY) in total and bought 359,500 shares, with a net purchase of 359,500 shares. During the past 18 months, 686,529 shares of Progyny Inc (PGNY) were sold and 359,500 shares were bought by its insiders, resulting in a net sale of 327,029 shares.
Progyny Inc (PGNY)'s detailed insider trading history can be found in Insider Trading Tracker table.
Progyny Inc Insider Transactions
Beth C Seidenberg Mailing Address
Above is the net worth, insider trading, and ownership report for Beth C Seidenberg. Currently GuruFocus does not have mailing address information for Beth C Seidenberg.