Erich Spangenberg - Net Worth and Insider Trading

Erich Spangenberg Net Worth

The estimated net worth of Erich Spangenberg is at least $1 Million dollars as of 2025-01-12. Erich Spangenberg is the 10% Owner of MARA Holdings Inc and owns about 82,933 shares of MARA Holdings Inc (MARA) stock worth over $1 Million. Details can be seen in Erich Spangenberg'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 Erich Spangenberg has not made any transactions after 2013-05-31 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 Erich Spangenberg

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Erich Spangenberg Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Erich Spangenberg owns 2 companies in total, including MARA Holdings Inc (MARA) , and Spectral AI Inc (MDAI) .

Click here to see the complete history of Erich Spangenberg’s form 4 insider trades.

Insider Ownership Summary of Erich Spangenberg

Ticker Comapny Transaction Date Type of Owner
MARA MARA Holdings Inc 2013-05-31 10 percent owner
MDAI Spectral AI Inc 2023-09-11 10 percent owner

Erich Spangenberg Latest Holdings Summary

Erich Spangenberg currently owns a total of 1 stock. Erich Spangenberg owns 82,933 shares of MARA Holdings Inc (MARA) as of May 31, 2013, with a value of $1 Million.

Latest Holdings of Erich Spangenberg

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
MARA MARA Holdings Inc 2013-05-31 82,933 17.86 1,481,183

Holding Weightings of Erich Spangenberg


Erich Spangenberg Form 4 Trading Tracker

According to the SEC Form 4 filings, Erich Spangenberg has made a total of 0 transactions in MARA Holdings Inc (MARA) over the past 5 years. The most-recent trade in MARA Holdings Inc is the acquisition of 6,010 shares on May 31, 2013, which cost Erich Spangenberg around $250,000.

Insider Trading History of Erich Spangenberg

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.

Erich Spangenberg Trading Performance

GuruFocus tracks the stock performance after each of Erich Spangenberg's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Erich Spangenberg is 0.57%. GuruFocus also compares Erich Spangenberg's trading performance to market benchmark return within the same time period. The performance of stocks bought by Erich Spangenberg 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 Erich Spangenberg'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 Erich Spangenberg

Average Return

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Average return per transaction

Outperforming Transactions

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1 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(%) -19.14 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) -18.17 LIMIT LIMIT LIMIT LIMIT LIMIT

Erich Spangenberg Ownership Network

Ownership Network List of Erich Spangenberg

No Data

Ownership Network Relation of Erich Spangenberg

Insider Network Chart

Erich Spangenberg Owned Company Details

What does MARA Holdings Inc do?

Who are the key executives at MARA Holdings Inc?

Erich Spangenberg is the 10 percent owner of MARA Holdings Inc. Other key executives at MARA Holdings Inc include CFO Salman Hassan Khan , Chief Technical Officer Ashu Swami , and CHIEF FINANCIAL OFFICER Simeon Salzman .

MARA Holdings Inc (MARA) Insider Trades Summary

Over the past 18 months, Erich Spangenberg made no insider transaction in MARA Holdings Inc (MARA). Other recent insider transactions involving MARA Holdings Inc (MARA) include a net sale of 5,000 shares made by Douglas K Mellinger , a net sale of 110,027 shares made by Frederick G Thiel , and a net sale of 66,800 shares made by Salman Hassan Khan .

In summary, during the past 3 months, insiders sold 153,615 shares of MARA Holdings Inc (MARA) in total and bought 0 shares, with a net sale of 153,615 shares. During the past 18 months, 241,044 shares of MARA Holdings Inc (MARA) were sold and 0 shares were bought by its insiders, resulting in a net sale of 241,044 shares.

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

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MARA Holdings Inc Insider Transactions

No Available Data

Erich Spangenberg Mailing Address

Above is the net worth, insider trading, and ownership report for Erich Spangenberg. You might contact Erich Spangenberg via mailing address: 73 595 El Paseo, Suite 2204, Palm Desert Ca 92260.