
Ra Capital is a venture capital firm that has been actively managing its 13F portfolio. It filed its 13F form with the SEC, revealing its holdings at the end of the quarter.
Ra Capital's 13F holdings include a significant stake in various companies. These holdings are a result of its investment strategy and asset management approach.
The firm's asset management approach focuses on identifying undervalued companies. It aims to create long-term value through its investments, as evident from its 13F holdings.
Ra Capital's 13F portfolio is a reflection of its investment strategy and asset management capabilities.
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Ra Capital Management
Ra Capital Management is a Boston-based investment firm with a significant presence in the industry. They hold 89 positions in their portfolio as reported in the December 2024 quarterly 13F filing.
The firm has a substantial amount of assets under management, with $11.3 billion in assets as of March 29, 2024. This is a significant increase from the $9.8 billion reported in the previous quarter.
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One notable aspect of Ra Capital Management is their investment in the biotech sector, with a significant stake in companies such as Bioage Labs Inc and Avalo Therapeutics Inc.
Here are some key statistics about Ra Capital Management:
Ra Capital Management has a strong team with 130 employees, with 62% of them being investors. The firm has a presence in Boston, Massachusetts, with an address at 200 Berkeley Street.
Ra Capital Management Holdings
Ra Capital Management Holdings are quite impressive, with 89 positions in its portfolio as reported in the December 2024 quarterly 13F filing. This suggests a diverse range of investments, which can help mitigate risks and increase potential returns.
Some of the notable holdings include ASND, PCVX, and JANX, which make up a significant portion of the portfolio's value. These holdings are likely chosen for their growth potential and alignment with the firm's investment strategy.
Ra Capital Management LP has a total AUM of $11.3 billion, with a significant portion coming from pooled investment vehicles. This suggests a strong focus on investing in other investment vehicles, which can provide access to a wider range of investment opportunities.
Here are some of the top holdings of Ra Capital Management LP, broken down by sector:
These holdings are likely chosen for their growth potential and alignment with the firm's investment strategy.
Peter Kolchinsky Bio and Net Worth

Peter Kolchinsky is a biotechnology investor and scientist who co-founded and leads the Boston-based investment firm RA Capital Management. He graduated from Harvard with a Ph.D. in virology in 2001.
Peter Kolchinsky received $4 million from Vertex Pharmaceuticals co-founder Rich Aldrich, which he used to begin selecting biotech stocks at RA Capital. By the end of 2003, the initial $4 million investment had grown to $13 million.
RA Capital Management, led by Peter Kolchinsky, manages discretionary assets totaling $11,323,065,361, as reported in their Form ADV dated March 2024. The firm serves 10 clients.
Here are the top 10 holdings of RA Capital Management's portfolio:
The top 10 holdings constitute 51.1% of the portfolio.
13F Filings
13F Filings are a crucial part of RA Capital's investment strategy. They are publicly disclosed filings that provide insight into the company's investment portfolio.
The most recent 13FQ4 2024 filing for RA Capital Management, L.P. is publicly available on the SEC website. This filing offers a snapshot of the company's current investment holdings.
The filing is located in Boston, MA, and can be accessed through the SEC's website at sec.gov.
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13F Portfolio Filings

You can find the most recent 13F portfolio filings on the SEC website. I've checked it out myself, and it's a treasure trove of information.
The filings are usually labeled with the quarter and year, such as 13FQ4 2024. This tells you exactly when the filing was made.
These filings are often related to a specific location, like Boston, MA. This can give you a sense of where the investment firm is based.
Each filing is associated with a unique CIK, or Central Index Key, which is 0001346824 in this case. This code helps identify the company or investment firm making the filing.
Some investment firms have alternate names, like RA CAPITAL MANAGEMENT, L.P. This can be helpful if you're looking for a more familiar name.
If you want to see all the SEC filings for a particular company, you can click on the "All SEC filings" link on the SEC website.
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Assets, Funds, Holdings

Ra Capital Management LP has a total of 89 positions in its portfolio as reported in the December 2024 quarterly 13F filing. The firm's assets under management (AUM) amount to $11.3 billion as of March 29, 2024.
The firm's address is located at 200 Berkeley Street, Boston, MA 02116, and its phone number is 617-778-2500. You can find more information about the firm on its website, Twitter, LinkedIn, IAPD, and EDGAR.
Ra Capital Management LP is a private investment firm that manages funds for various clients, including pooled investment vehicles and corporations. The firm's investment strategy is focused on investing in a range of assets, including stocks, bonds, and other securities.
Here's a breakdown of the firm's AUM by client type:
The firm's AUM is also broken down by non-United States persons and United States persons, with non-United States persons accounting for $4.4 billion and United States persons accounting for $7.0 billion.
Ra Capital Management LP has filed several Form 13D/13G statements, including one for Bioage Labs Inc on October 7, 2024, and one for Bicara Therapeutics Inc on September 23, 2024.
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Frequently Asked Questions
What is a 13F fund?
A 13F fund is a type of investment portfolio managed by a professional with over $100M in assets, required to disclose its holdings to the SEC. This report provides valuable insights into the fund's investment strategies and market trends.
Do hedge funds have to file 13F?
Hedge funds with at least $100 million in U.S. publicly-traded equity securities must file a quarterly Form 13F with the SEC, disclosing their portfolio composition. This requirement applies to managers with investment discretion over these securities.
Sources
- https://13f.info/manager/0001346824-ra-capital-management-l-p
- https://stockzoa.com/fund/ra-capital-management-llc/
- https://www.sensamarket.com/sec-13f/manager/0001346824-ra-capital-management-llc
- https://aum13f.com/firm/ra-capital-management-lp
- https://www.insidermonkey.com/hedge-fund/ra+capital+management/307/
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