David S. Grayzel - Net Worth and Insider Trading

David S. Grayzel Net Worth

The estimated net worth of David S. Grayzel is at least $8 Million dollars as of 2024-11-13. David S. Grayzel is the Director of Aerovate Therapeutics Inc and owns about 1,799,232 shares of Aerovate Therapeutics Inc (AVTE) stock worth over $5 Million. David S. Grayzel is also the Director of Surface Oncology Inc and owns about 2,945,453 shares of Surface Oncology Inc (SURF) stock worth over $3 Million. Details can be seen in David S. Grayzel'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 David S. Grayzel has not made any transactions after 2024-04-09 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 David S. Grayzel

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David S. Grayzel Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, David S. Grayzel owns 2 companies in total, including Surface Oncology Inc (SURF) , and Aerovate Therapeutics Inc (AVTE) .

Click here to see the complete history of David S. Grayzel’s form 4 insider trades.

Insider Ownership Summary of David S. Grayzel

Ticker Comapny Transaction Date Type of Owner
SURF Surface Oncology Inc 2020-12-17 director
AVTE Aerovate Therapeutics Inc 2024-04-09 director

David S. Grayzel Latest Holdings Summary

David S. Grayzel currently owns a total of 2 stocks. Among these stocks, David S. Grayzel owns 1,799,232 shares of Aerovate Therapeutics Inc (AVTE) as of April 9, 2024, with a value of $5 Million and a weighting of 60.29%. David S. Grayzel also owns 2,945,453 shares of Surface Oncology Inc (SURF) as of December 17, 2020, with a value of $3 Million and a weighting of 39.71%.

Latest Holdings of David S. Grayzel

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
AVTE Aerovate Therapeutics Inc 2024-04-09 1,799,232 2.66 4,785,957
SURF Surface Oncology Inc 2020-12-17 2,945,453 1.07 3,151,635

Holding Weightings of David S. Grayzel


David S. Grayzel Form 4 Trading Tracker

According to the SEC Form 4 filings, David S. Grayzel has made a total of 1 transactions in Aerovate Therapeutics Inc (AVTE) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Aerovate Therapeutics Inc is the sale of 11,882 shares on April 9, 2024, which brought David S. Grayzel around $334,478.

According to the SEC Form 4 filings, David S. Grayzel has made a total of 2 transactions in Surface Oncology Inc (SURF) over the past 5 years, including 0 buys and 2 sells. The most-recent trade in Surface Oncology Inc is the sale of 1,700,000 shares on December 17, 2020, which brought David S. Grayzel around $31 Million.

Insider Trading History of David S. Grayzel

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.

David S. Grayzel Trading Performance

GuruFocus tracks the stock performance after each of David S. Grayzel's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by David S. Grayzel is 7.22%. GuruFocus also compares David S. Grayzel's trading performance to market benchmark return within the same time period. The performance of stocks bought by David S. Grayzel within 3 months outperforms 1 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 David S. Grayzel'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 David S. Grayzel

Average Return

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Average return per transaction

Outperforming Transactions

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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(%) 16.93 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) 14.57 LIMIT LIMIT LIMIT LIMIT LIMIT

David S. Grayzel Ownership Network

Ownership Network List of David S. Grayzel

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Ownership Network Relation of David S. Grayzel

Insider Network Chart

David S. Grayzel Owned Company Details

What does Surface Oncology Inc do?

Who are the key executives at Surface Oncology Inc?

David S. Grayzel is the director of Surface Oncology Inc. Other key executives at Surface Oncology Inc include Deputy GC Chandra Adams , Chief Medical Officer Alison Oneill , and See Remarks Jessica Fees .

Surface Oncology Inc (SURF) Insider Trades Summary

Over the past 18 months, David S. Grayzel made no insider transaction in Surface Oncology Inc (SURF). Other recent insider transactions involving Surface Oncology Inc (SURF) include a net sale of 16,713 shares made by Robert W. Ross , a net sale of 9,434 shares made by Jessica Fees , and a net sale of 7,042 shares made by Alison Oneill .

In summary, during the past 3 months, insiders sold 0 shares of Surface Oncology Inc (SURF) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 37,090 shares of Surface Oncology Inc (SURF) were sold and 0 shares were bought by its insiders, resulting in a net sale of 37,090 shares.

Surface Oncology Inc (SURF)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Surface Oncology Inc Insider Transactions

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David S. Grayzel Mailing Address

Above is the net worth, insider trading, and ownership report for David S. Grayzel. You might contact David S. Grayzel via mailing address: C/o Surface Oncology, 50 Hampshire St., 8th Floor, Cambridge Ma 02139.