Robert J. Spiegel - Net Worth and Insider Trading

Robert J. Spiegel Net Worth

The estimated net worth of Robert J. Spiegel is at least $375,348 dollars as of 2024-05-22. Robert J. Spiegel is the Director of Geron Corp and owns about 65,576 shares of Geron Corp (GERN) stock worth over $242,631. Robert J. Spiegel is the Chief Medical Officer of PTC Therapeutics Inc and owns about 3,239 shares of PTC Therapeutics Inc (PTCT) stock worth over $125,835. Robert J. Spiegel is also the Director of PDS Biotechnology Corp and owns about 1,933 shares of PDS Biotechnology Corp (PDSB) stock worth over $6,881. Details can be seen in Robert J. Spiegel's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that Robert J. Spiegel has not made any transactions after 2018-09-13 and currently still holds the listed stock(s).

Transaction Summary of Robert J. Spiegel

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Robert J. Spiegel Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Robert J. Spiegel owns 10 companies in total, including Geron Corp (GERN) , Athenex Inc (ATNXQ) , and Cyclacel Pharmaceuticals Inc (CYCC) among others .

Click here to see the complete history of Robert J. Spiegel’s form 4 insider trades.

Insider Ownership Summary of Robert J. Spiegel

Ticker Comapny Transaction Date Type of Owner
GERN Geron Corp 2018-09-13 director
ATNXQ Athenex Inc 2020-08-04 director
CYCC Cyclacel Pharmaceuticals Inc 2020-06-25 director
2020-05-07 director
2016-06-21 director
2018-02-13 director
2015-03-13 Chief Medical Officer
2010-05-21 director
2023-01-19 director
2023-04-25 director

Robert J. Spiegel Latest Holdings Summary

Robert J. Spiegel currently owns a total of 3 stocks. Among these stocks, Robert J. Spiegel owns 65,576 shares of Geron Corp (GERN) as of September 13, 2018, with a value of $242,631 and a weighting of 64.64%. Robert J. Spiegel owns 3,239 shares of PTC Therapeutics Inc (PTCT) as of March 13, 2015, with a value of $125,835 and a weighting of 33.52%. Robert J. Spiegel also owns 1,933 shares of PDS Biotechnology Corp (PDSB) as of October 6, 2015, with a value of $6,881 and a weighting of 1.83%.

Latest Holdings of Robert J. Spiegel

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
GERN Geron Corp 2018-09-13 65,576 3.70 242,631
PTCT PTC Therapeutics Inc 2015-03-13 3,239 38.85 125,835
PDSB PDS Biotechnology Corp 2015-10-06 1,933 3.56 6,881

Holding Weightings of Robert J. Spiegel


Robert J. Spiegel Form 4 Trading Tracker

According to the SEC Form 4 filings, Robert J. Spiegel has made a total of 0 transactions in Geron Corp (GERN) over the past 5 years. The most-recent trade in Geron Corp is the sale of 175,000 shares on September 13, 2018, which brought Robert J. Spiegel around $1 Million.

According to the SEC Form 4 filings, Robert J. Spiegel has made a total of 0 transactions in PTC Therapeutics Inc (PTCT) over the past 5 years. The most-recent trade in PTC Therapeutics Inc is the sale of 1,030 shares on March 13, 2015, which brought Robert J. Spiegel around $77,353.

According to the SEC Form 4 filings, Robert J. Spiegel has made a total of 0 transactions in PDS Biotechnology Corp (PDSB) over the past 5 years. The most-recent trade in PDS Biotechnology Corp is the acquisition of 150 shares on October 6, 2015, which cost Robert J. Spiegel around $33,000.

Insider Trading History of Robert J. Spiegel

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.

Robert J. Spiegel Trading Performance

GuruFocus tracks the stock performance after each of Robert J. Spiegel's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Robert J. Spiegel is -23.56%. GuruFocus also compares Robert J. Spiegel's trading performance to market benchmark return within the same time period. The performance of stocks bought by Robert J. Spiegel within 3 months outperforms 0 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 Robert J. Spiegel'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 Robert J. Spiegel

Average Return

Average return per transaction

Outperforming Transactions

0 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(%) -6.44
Relative Return to S&P 500(%) -12.46

Robert J. Spiegel Ownership Network

Ownership Network List of Robert J. Spiegel

No Data

Ownership Network Relation of Robert J. Spiegel


Robert J. Spiegel Owned Company Details

What does Geron Corp do?

Who are the key executives at Geron Corp?

Robert J. Spiegel is the director of Geron Corp. Other key executives at Geron Corp include EVP & Chief Financial Officer Michelle Robertson , EVP & Chief Legal Officer Scott Alan Samuels , and director & Chief Executive Officer John A Scarlett .

Geron Corp (GERN) Insider Trades Summary

Over the past 18 months, Robert J. Spiegel made no insider transaction in Geron Corp (GERN). Other recent insider transactions involving Geron Corp (GERN) include a net sale of 1,340,000 shares made by John A Scarlett , a net sale of 400,000 shares made by Olivia Kyusuk Bloom , and a net sale of 384,719 shares made by Andrew J Grethlein .

In summary, during the past 3 months, insiders sold 0 shares of Geron Corp (GERN) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 2,194,719 shares of Geron Corp (GERN) were sold and 13,186 shares were bought by its insiders, resulting in a net sale of 2,181,533 shares.

Geron Corp (GERN)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Geron Corp Insider Transactions

No Available Data

Robert J. Spiegel Mailing Address

Above is the net worth, insider trading, and ownership report for Robert J. Spiegel. You might contact Robert J. Spiegel via mailing address: C/o Geron Corporation, 230 Constitution Drive, Menlo Park Ca 94025.

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