David Nierenberg - Net Worth and Insider Trading
David Nierenberg Net Worth
The estimated net worth of David Nierenberg is at least $207 Million dollars as of 2024-04-27. David Nierenberg is the 10% Owner of Amedisys Inc and owns about 1,630,017 shares of Amedisys Inc (AMED) stock worth over $150 Million. David Nierenberg is the 10% Owner of Natus Medical Inc and owns about 781,081 shares of Natus Medical Inc (NTUS) stock worth over $26 Million. David Nierenberg is also the Director of Rosetta Stone Inc and owns about 514,493 shares of Rosetta Stone Inc (RST) stock worth over $15 Million. Besides these, David Nierenberg also holds Houston Wire & Cable Co (HWCC) , Flotek Industries Inc (FTK) , Riverview Bancorp Inc (RVSB) . Details can be seen in David Nierenberg's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that David Nierenberg has not made any transactions after 2023-12-14 and currently still holds the listed stock(s).
Transaction Summary of David Nierenberg
David Nierenberg Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, David Nierenberg owns 9 companies in total, including Rosetta Stone Inc (RST) , Flotek Industries Inc (FTK) , and Houston Wire & Cable Co (HWCC) among others .
Click here to see the complete history of David Nierenberg’s form 4 insider trades.
Insider Ownership Summary of David Nierenberg
| Ticker | Comapny | Transaction Date | Type of Owner |
|---|---|---|---|
| RST | Rosetta Stone Inc | 2020-10-15 | director |
| FTK | Flotek Industries Inc | 2023-12-14 | director |
| HWCC | Houston Wire & Cable Co | 2020-03-16 | director & 10 percent owner |
| RVSB | Riverview Bancorp Inc | 2020-03-16 | director |
| ESIO | Electro Scientific Industries Inc | 2015-05-14 | director & 10 percent owner |
| RSYS | Radisys Corp | 2014-11-07 | 10 percent owner |
| NTUS | Natus Medical Inc | 2009-03-18 | other: Former Director |
| AZTA | Azenta Inc | 2008-07-21 | 10 percent owner |
| AMED | Amedisys Inc | 2004-06-03 | 10 percent owner |
David Nierenberg Latest Holdings Summary
David Nierenberg currently owns a total of 6 stocks. Among these stocks, David Nierenberg owns 1,630,017 shares of Amedisys Inc (AMED) as of June 3, 2004, with a value of $150 Million and a weighting of 72.36%. David Nierenberg owns 781,081 shares of Natus Medical Inc (NTUS) as of March 18, 2009, with a value of $26 Million and a weighting of 12.45%. David Nierenberg also owns 514,493 shares of Rosetta Stone Inc (RST) as of May 17, 2019, with a value of $15 Million and a weighting of 7.46%. The other 3 stocks Houston Wire & Cable Co (HWCC) , Flotek Industries Inc (FTK) , Riverview Bancorp Inc (RVSB) have a combined weighting of 7.73% among all his current holdings.
Latest Holdings of David Nierenberg
| Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| AMED | Amedisys Inc | 2004-06-03 | 1,630,017 | 91.79 | 149,619,260 |
| NTUS | Natus Medical Inc | 2009-03-18 | 781,081 | 32.96 | 25,744,430 |
| RST | Rosetta Stone Inc | 2019-05-17 | 514,493 | 29.99 | 15,429,645 |
| HWCC | Houston Wire & Cable Co | 2020-03-16 | 2,043,358 | 5.30 | 10,829,797 |
| FTK | Flotek Industries Inc | 2023-12-14 | 1,317,566 | 3.47 | 4,571,954 |
| RVSB | Riverview Bancorp Inc | 2020-03-16 | 130,869 | 4.45 | 582,367 |
Holding Weightings of David Nierenberg
David Nierenberg Form 4 Trading Tracker
According to the SEC Form 4 filings, David Nierenberg has made a total of 0 transactions in Amedisys Inc (AMED) over the past 5 years. The most-recent trade in Amedisys Inc is the sale of 242,661 shares on June 3, 2004, which brought David Nierenberg around $5 Million.
According to the SEC Form 4 filings, David Nierenberg has made a total of 0 transactions in Natus Medical Inc (NTUS) over the past 5 years. The most-recent trade in Natus Medical Inc is the sale of 150,000 shares on March 18, 2009, which brought David Nierenberg around $1 Million.
According to the SEC Form 4 filings, David Nierenberg has made a total of 2 transactions in Rosetta Stone Inc (RST) over the past 5 years, including 0 buys and 2 sells. The most-recent trade in Rosetta Stone Inc is the sale of 107,141 shares on May 17, 2019, which brought David Nierenberg around $3 Million.
More details on David Nierenberg's insider transactions can be found in the Insider Trading History of David Nierenberg table.Insider Trading History of David Nierenberg
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David Nierenberg Trading Performance
GuruFocus tracks the stock performance after each of David Nierenberg's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by David Nierenberg is 18.91%. GuruFocus also compares David Nierenberg's trading performance to market benchmark return within the same time period. The performance of stocks bought by David Nierenberg within 3 months outperforms 22 times out of 36 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how David Nierenberg's insider trading performs compared to the benchmark.
Performance of David Nierenberg
Average Return
72.61%
Outperforming Transactions
71%
| 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | 3 Years | |
|---|---|---|---|---|---|---|
| Return(%) | 7.42 | 18.91 | 38.61 | 72.61 | 29.83 | 14.45 |
| Relative Return to S&P 500(%) | 4.89 | 11.82 | 29.63 | 54.49 | 16.6 | 5.81 |
David Nierenberg Ownership Network
Ownership Network List of David Nierenberg
Ownership Network Relation of David Nierenberg
David Nierenberg Owned Company Details
What does Rosetta Stone Inc do?
Who are the key executives at Rosetta Stone Inc?
David Nierenberg is the director of Rosetta Stone Inc. Other key executives at Rosetta Stone Inc include Principal Accounting Officer M. Sean Hartford , Chief Financial Officer Thomas M Pierno , and director & Chief Executive Officer A John Hass .
Rosetta Stone Inc (RST) Insider Trades Summary
In summary, during the past 3 months, insiders sold 0 shares of Rosetta Stone Inc (RST) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Rosetta Stone Inc (RST) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.
Rosetta Stone Inc (RST)'s detailed insider trading history can be found in Insider Trading Tracker table.
Rosetta Stone Inc Insider Transactions
David Nierenberg Mailing Address
Above is the net worth, insider trading, and ownership report for David Nierenberg. You might contact David Nierenberg via mailing address: 19605 Ne 8th Street, Camas Wa 98607.
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