Rock Springs Capital Master Fund Lp - Net Worth and Insider Trading

Rock Springs Capital Master Fund Lp Net Worth

The estimated net worth of Rock Springs Capital Master Fund Lp is at least $29 Million dollars as of 2024-04-28. Rock Springs Capital Master Fund Lp is the 10% Owner of Inozyme Pharma Inc and owns about 2,111,768 shares of Inozyme Pharma Inc (INZY) stock worth over $9 Million. Rock Springs Capital Master Fund Lp is the 10% Owner of Atea Pharmaceuticals Inc and owns about 1,944,419 shares of Atea Pharmaceuticals Inc (AVIR) stock worth over $7 Million. Rock Springs Capital Master Fund Lp is also the 10% Owner of Verve Therapeutics Inc and owns about 1,079,224 shares of Verve Therapeutics Inc (VERV) stock worth over $7 Million. Besides these, Rock Springs Capital Master Fund Lp also holds Imara Inc (IMRA) , Theseus Pharmaceuticals Inc (THRX) , Homology Medicines Inc (FIXX) . Details can be seen in Rock Springs Capital Master Fund Lp's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that Rock Springs Capital Master Fund Lp has not made any transactions after 2021-10-12 and currently still holds the listed stock(s).

Transaction Summary of Rock Springs Capital Master Fund Lp

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Rock Springs Capital Master Fund Lp Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Rock Springs Capital Master Fund Lp owns 9 companies in total, including Inozyme Pharma Inc (INZY) , Imara Inc (IMRA) , and Homology Medicines Inc (FIXX) among others .

Click here to see the complete history of Rock Springs Capital Master Fund Lp’s form 4 insider trades.

Insider Ownership Summary of Rock Springs Capital Master Fund Lp

Ticker Comapny Transaction Date Type of Owner
INZY Inozyme Pharma Inc 2020-07-28 10 percent owner
IMRA Imara Inc 2020-03-16 10 percent owner
FIXX Homology Medicines Inc 2018-04-02 10 percent owner
TPST Tempest Therapeutics Inc 2021-12-30 10 percent owner
AVIR Atea Pharmaceuticals Inc 2020-11-03 10 percent owner
THRX Theseus Pharmaceuticals Inc 2021-10-12 10 percent owner
XLO Xilio Therapeutics Inc 2021-10-21 10 percent owner
VERV Verve Therapeutics Inc 2021-06-21 10 percent owner
ELVN Enliven Therapeutics Inc 2020-03-11 10 percent owner

Rock Springs Capital Master Fund Lp Latest Holdings Summary

Rock Springs Capital Master Fund Lp currently owns a total of 6 stocks. Among these stocks, Rock Springs Capital Master Fund Lp owns 2,111,768 shares of Inozyme Pharma Inc (INZY) as of July 28, 2020, with a value of $9 Million and a weighting of 31.93%. Rock Springs Capital Master Fund Lp owns 1,944,419 shares of Atea Pharmaceuticals Inc (AVIR) as of November 3, 2020, with a value of $7 Million and a weighting of 24.56%. Rock Springs Capital Master Fund Lp also owns 1,079,224 shares of Verve Therapeutics Inc (VERV) as of June 21, 2021, with a value of $7 Million and a weighting of 22.64%. The other 3 stocks Imara Inc (IMRA) , Theseus Pharmaceuticals Inc (THRX) , Homology Medicines Inc (FIXX) have a combined weighting of 20.87% among all his current holdings.

Latest Holdings of Rock Springs Capital Master Fund Lp

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
INZY Inozyme Pharma Inc 2020-07-28 2,111,768 4.44 9,376,250
AVIR Atea Pharmaceuticals Inc 2020-11-03 1,944,419 3.71 7,213,794
VERV Verve Therapeutics Inc 2021-06-21 1,079,224 6.16 6,648,020
IMRA Imara Inc 2020-03-16 523,411 6.32 3,307,958
THRX Theseus Pharmaceuticals Inc 2021-10-12 686,649 4.06 2,787,795
FIXX Homology Medicines Inc 2018-04-02 35,880 0.93 33,537

Holding Weightings of Rock Springs Capital Master Fund Lp


Rock Springs Capital Master Fund Lp Form 4 Trading Tracker

According to the SEC Form 4 filings, Rock Springs Capital Master Fund Lp has made a total of 1 transactions in Inozyme Pharma Inc (INZY) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Inozyme Pharma Inc is the acquisition of 600,000 shares on July 28, 2020, which cost Rock Springs Capital Master Fund Lp around $10 Million.

According to the SEC Form 4 filings, Rock Springs Capital Master Fund Lp has made a total of 1 transactions in Atea Pharmaceuticals Inc (AVIR) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Atea Pharmaceuticals Inc is the acquisition of 250,000 shares on November 3, 2020, which cost Rock Springs Capital Master Fund Lp around $6 Million.

According to the SEC Form 4 filings, Rock Springs Capital Master Fund Lp has made a total of 1 transactions in Verve Therapeutics Inc (VERV) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Verve Therapeutics Inc is the acquisition of 370,000 shares on June 21, 2021, which cost Rock Springs Capital Master Fund Lp around $7 Million.

More details on Rock Springs Capital Master Fund Lp's insider transactions can be found in the Insider Trading History of Rock Springs Capital Master Fund Lp table.

Insider Trading History of Rock Springs Capital Master Fund Lp

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.

Rock Springs Capital Master Fund Lp Trading Performance

GuruFocus tracks the stock performance after each of Rock Springs Capital Master Fund Lp's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Rock Springs Capital Master Fund Lp is 66.75%. GuruFocus also compares Rock Springs Capital Master Fund Lp's trading performance to market benchmark return within the same time period. The performance of stocks bought by Rock Springs Capital Master Fund Lp within 3 months outperforms 5 times out of 6 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 Master Fund Lp'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 Rock Springs Capital Master Fund Lp

Average Return

-26.18%

Average return per transaction

Outperforming Transactions

17%

1 out of 6 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(%) 22.4 66.75 12.15 -26.18 -45.03 -35
Relative Return to S&P 500(%) 14.39 56.15 -5.91 -46.77 -53.91 -47.45

Rock Springs Capital Master Fund Lp Ownership Network

Ownership Network List of Rock Springs Capital Master Fund Lp

No Data

Ownership Network Relation of Rock Springs Capital Master Fund Lp


Rock Springs Capital Master Fund Lp Owned Company Details

What does Inozyme Pharma Inc do?

Who are the key executives at Inozyme Pharma Inc?

Rock Springs Capital Master Fund 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 See Remarks Henric Bjorn Bjarke .

Inozyme Pharma Inc (INZY) Insider Trades Summary

Over the past 18 months, Rock Springs Capital Master Fund 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 7,523 shares of Inozyme Pharma Inc (INZY) in total and bought 0 shares, with a net sale of 7,523 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.

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Inozyme Pharma Inc Insider Transactions

No Available Data

Rock Springs Capital Master Fund Lp Mailing Address

Above is the net worth, insider trading, and ownership report for Rock Springs Capital Master Fund Lp. You might contact Rock Springs Capital Master Fund Lp via mailing address: 190 Elgin Avenue, George Town E9 Ky1 9001.

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