Rock Springs Capital Management Lp - Net Worth and Insider Trading
Rock Springs Capital Management Lp Net Worth
The estimated net worth of Rock Springs Capital Management Lp is at least $10 Million dollars as of 2024-09-20. Rock Springs Capital Management Lp is the 10% Owner of Alpine Immune Sciences Inc and owns about 141,090 shares of Alpine Immune Sciences Inc (ALPN) stock worth over $9 Million. Rock Springs Capital Management Lp is also the 10% Owner of Xilio Therapeutics Inc and owns about 1,407,766 shares of Xilio Therapeutics Inc (XLO) stock worth over $1 Million. Details can be seen in Rock Springs Capital Management Lp'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 Rock Springs Capital Management Lp has not made any transactions after 2021-10-26 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Rock Springs Capital Management Lp
Rock Springs Capital Management Lp Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Rock Springs Capital Management Lp owns 11 companies in total, including Inozyme Pharma Inc (INZY) , Imara Inc (IMRA) , and Homology Medicines Inc (FIXX) among others .
Insider Ownership Summary of Rock Springs Capital Management Lp
| Ticker | Comapny | Transaction Date | Type of Owner |
|---|---|---|---|
| INZY | Inozyme Pharma Inc | 2020-07-23 | 10 percent owner |
| IMRA | Imara Inc | 2020-03-11 | 10 percent owner |
| FIXX | Homology Medicines Inc | 2018-03-27 | 10 percent owner |
 | | 2015-06-22 | 10 percent owner |
| | 2014-04-10 | 10 percent owner |
| | 2021-12-30 | 10 percent owner |
| | 2020-10-29 | 10 percent owner |
| | 2021-10-06 | 10 percent owner |
| | 2021-10-26 | 10 percent owner |
| | 2021-06-16 | 10 percent owner |
| | 2020-03-11 | 10 percent owner |
Rock Springs Capital Management Lp Latest Holdings Summary
Rock Springs Capital Management Lp currently owns a total of 2 stocks. Among these stocks, Rock Springs Capital Management Lp owns 141,090 shares of Alpine Immune Sciences Inc (ALPN) as of June 22, 2015, with a value of $9 Million and a weighting of 88.92%. Rock Springs Capital Management Lp also owns 1,407,766 shares of Xilio Therapeutics Inc (XLO) as of October 26, 2021, with a value of $1 Million and a weighting of 11.08%.
Latest Holdings of Rock Springs Capital Management Lp
| Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| ALPN | Alpine Immune Sciences Inc | 2015-06-22 | 141,090 | 64.97 | 9,166,617 |
| XLO | Xilio Therapeutics Inc | 2021-10-26 | 1,407,766 | 0.81 | 1,142,402 |
Holding Weightings of Rock Springs Capital Management Lp
Rock Springs Capital Management Lp Form 4 Trading Tracker
According to the SEC Form 4 filings, Rock Springs Capital Management Lp has made a total of 0 transactions in Alpine Immune Sciences Inc (ALPN) over the past 5 years. The most-recent trade in Alpine Immune Sciences Inc is the acquisition of 50,000 shares on June 22, 2015, which cost Rock Springs Capital Management Lp around $3 Million.
According to the SEC Form 4 filings, Rock Springs Capital Management Lp has made a total of 1 transactions in Xilio Therapeutics Inc (XLO) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Xilio Therapeutics Inc is the acquisition of 500,000 shares on October 26, 2021, which cost Rock Springs Capital Management Lp around $8 Million.
Insider Trading History of Rock Springs Capital Management Lp
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Rock Springs Capital Management Lp Trading Performance
GuruFocus tracks the stock performance after each of Rock Springs Capital Management Lp's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Rock Springs Capital Management Lp is -6.42%. GuruFocus also compares Rock Springs Capital Management Lp's trading performance to market benchmark return within the same time period. The performance of stocks bought by Rock Springs Capital Management Lp within 3 months outperforms 1 times out of 2 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Rock Springs Capital Management Lp's insider trading performs compared to the benchmark.
Performance of Rock Springs Capital Management Lp
Average Return
Outperforming Transactions
| 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | 3 Years | |
|---|---|---|---|---|---|---|
| Return(%) | 22.21 | | | | | |
| Relative Return to S&P 500(%) | 22.2 | | | | | |
Rock Springs Capital Management Lp Ownership Network
Rock Springs Capital Management Lp Owned Company Details
What does Inozyme Pharma Inc do?
Who are the key executives at Inozyme Pharma Inc?
Rock Springs Capital Management Lp is the 10 percent owner of Inozyme Pharma Inc. Other key executives at Inozyme Pharma Inc include director & 10 percent owner Robert Lorne Hopfner , COO Matthew Winton , and 10 percent owner Longitude Capital Partners Iii, Llc .
Inozyme Pharma Inc (INZY) Insider Trades Summary
Over the past 18 months, Rock Springs Capital Management Lp made no insider transaction in Inozyme Pharma Inc (INZY). Other recent insider transactions involving Inozyme Pharma Inc (INZY) include a net purchase of 1,833,697 shares made by Robert Lorne Hopfner , a net purchase of 833,333 shares made by Pivotal Bioventure Partners Fund I G.p., L.p. , and a net sale of 7,523 shares made by Douglas A Treco .
In summary, during the past 3 months, insiders sold 0 shares of Inozyme Pharma Inc (INZY) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 7,523 shares of Inozyme Pharma Inc (INZY) were sold and 2,667,030 shares were bought by its insiders, resulting in a net purchase of 2,659,507 shares.
Inozyme Pharma Inc (INZY)'s detailed insider trading history can be found in Insider Trading Tracker table.
Inozyme Pharma Inc Insider Transactions
Rock Springs Capital Management Lp Mailing Address
Above is the net worth, insider trading, and ownership report for Rock Springs Capital Management Lp. You might contact Rock Springs Capital Management Lp via mailing address: 650 South Exeter Street, Suite 1070, Baltimore Md 21202.
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