Quentin S. Blackford - Net Worth and Insider Trading

Quentin S. Blackford Net Worth

The estimated net worth of Quentin S. Blackford is at least $45 Million dollars as of 2024-12-27. Quentin S. Blackford is the COO of DexCom Inc and owns about 308,480 shares of DexCom Inc (DXCM) stock worth over $25 Million. Quentin S. Blackford is the President and CEO of iRhythm Technologies Inc and owns about 159,929 shares of iRhythm Technologies Inc (IRTC) stock worth over $14 Million. Quentin S. Blackford is also the Director of Alphatec Holdings Inc and owns about 572,605 shares of Alphatec Holdings Inc (ATEC) stock worth over $5 Million. Besides these, Quentin S. Blackford also holds Axogen Inc (AXGN) , NuVasive Inc (NUVA) . Details can be seen in Quentin S. Blackford'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 Quentin S. Blackford has not made any transactions after 2024-11-04 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 Quentin S. Blackford

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Quentin S. Blackford Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Quentin S. Blackford owns 6 companies in total, including DexCom Inc (DXCM) , Axogen Inc (AXGN) , and Alphatec Holdings Inc (ATEC) among others .

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

Insider Ownership Summary of Quentin S. Blackford

Ticker Comapny Transaction Date Type of Owner
DXCM DexCom Inc 2021-09-10 EVP & CFO & PFO & PAO
AXGN Axogen Inc 2021-06-01 director
ATEC Alphatec Holdings Inc 2024-03-07 director
LIMIT LIMIT 2015-12-07 CFO and CAO
LIMIT LIMIT 2024-11-04 director & President and CEO
LIMIT LIMIT 2022-08-01 director

Quentin S. Blackford Latest Holdings Summary

Quentin S. Blackford currently owns a total of 5 stocks. Among these stocks, Quentin S. Blackford owns 308,480 shares of DexCom Inc (DXCM) as of September 10, 2021, with a value of $25 Million and a weighting of 55.03%. Quentin S. Blackford owns 159,929 shares of iRhythm Technologies Inc (IRTC) as of November 4, 2024, with a value of $14 Million and a weighting of 31.58%. Quentin S. Blackford also owns 572,605 shares of Alphatec Holdings Inc (ATEC) as of March 7, 2024, with a value of $5 Million and a weighting of 11.7%. The other 2 stocks Axogen Inc (AXGN) , NuVasive Inc (NUVA) have a combined weighting of 1.69% among all his current holdings.

Latest Holdings of Quentin S. Blackford

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
DXCM DexCom Inc 2021-09-10 308,480 80.24 24,752,435
IRTC iRhythm Technologies Inc 2024-11-04 159,929 88.80 14,201,695
ATEC Alphatec Holdings Inc 2024-03-07 572,605 9.19 5,262,240
AXGN Axogen Inc 2019-08-12 39,468 16.66 657,537
NUVA NuVasive Inc 2015-12-07 2,599 39.75 103,310

Holding Weightings of Quentin S. Blackford


Quentin S. Blackford Form 4 Trading Tracker

According to the SEC Form 4 filings, Quentin S. Blackford has made a total of 6 transactions in DexCom Inc (DXCM) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in DexCom Inc is the sale of 298,592 shares on September 10, 2021, which brought Quentin S. Blackford around $10 Million.

According to the SEC Form 4 filings, Quentin S. Blackford has made a total of 4 transactions in iRhythm Technologies Inc (IRTC) over the past 5 years, including 1 buys and 3 sells. The most-recent trade in iRhythm Technologies Inc is the sale of 16,145 shares on November 4, 2024, which brought Quentin S. Blackford around $1 Million.

According to the SEC Form 4 filings, Quentin S. Blackford has made a total of 1 transactions in Alphatec Holdings Inc (ATEC) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Alphatec Holdings Inc is the acquisition of 20,000 shares on March 7, 2024, which cost Quentin S. Blackford around $256,600.

More details on Quentin S. Blackford's insider transactions can be found in the Insider Trading History of Quentin S. Blackford table.

Insider Trading History of Quentin S. Blackford

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.

Quentin S. Blackford Trading Performance

GuruFocus tracks the stock performance after each of Quentin S. Blackford's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Quentin S. Blackford is -3.33%. GuruFocus also compares Quentin S. Blackford's trading performance to market benchmark return within the same time period. The performance of stocks bought by Quentin S. Blackford within 3 months outperforms 0 times out of 4 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how Quentin S. Blackford'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 Quentin S. Blackford

Average Return

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Outperforming Transactions

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Return(%) 0.14 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) -3.04 LIMIT LIMIT LIMIT LIMIT LIMIT

Quentin S. Blackford Ownership Network

Ownership Network List of Quentin S. Blackford

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Ownership Network Relation of Quentin S. Blackford

Insider Network Chart

Quentin S. Blackford Owned Company Details

What does DexCom Inc do?

Who are the key executives at DexCom Inc?

Quentin S. Blackford is the EVP & CFO & PFO & PAO of DexCom Inc. Other key executives at DexCom Inc include Chief Human Resources Officer Sadie Stern , SVP & Research & Development Jacob Steven Leach , and SVP & Finance & CAO Jereme M Sylvain .

DexCom Inc (DXCM) Insider Trades Summary

Over the past 18 months, Quentin S. Blackford made no insider transaction in DexCom Inc (DXCM). Other recent insider transactions involving DexCom Inc (DXCM) include a net sale of 35,248 shares made by Sadie Stern , a net sale of 25,337 shares made by Jereme M Sylvain , and a net sale of 18,313 shares made by Micheal Jon Brown .

In summary, during the past 3 months, insiders sold 10,671 shares of DexCom Inc (DXCM) in total and bought 0 shares, with a net sale of 10,671 shares. During the past 18 months, 321,825 shares of DexCom Inc (DXCM) were sold and 0 shares were bought by its insiders, resulting in a net sale of 321,825 shares.

DexCom Inc (DXCM)'s detailed insider trading history can be found in Insider Trading Tracker table.

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DexCom Inc Insider Transactions

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Quentin S. Blackford Mailing Address

Above is the net worth, insider trading, and ownership report for Quentin S. Blackford. You might contact Quentin S. Blackford via mailing address: 7475 Lusk Blvd., San Diego Ca 92121.

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