Arch Venture Management, LLC Top Holdings and 13F Report (2026) About Arch Venture Management, LLCInvestment ActivityArch Venture Management, LLC has $1.10 billion in total holdings as of June 30, 2026.Arch Venture Management, LLC owns shares of 12 different stocks, but just 6 companies or ETFs make up 80% of its holdings.Approximately 28.98% of the portfolio was purchased this quarter.About 0.39% of the portfolio was sold this quarter.This quarter, Arch Venture Management, LLC has purchased 10 new stocks and bought additional shares in 0 stocks.Arch Venture Management, LLC sold shares of 1 stock and completely divested from 1 stock this quarter.Largest Holdings PARABILIS MEDICINES INC $175,517,789Beam Therapeutics $155,771,929RAPPORT THERAPEUTICS INC $155,376,512SEAPORT THERAPEUTICS INC $136,600,437Erasca $129,917,324 Largest New Holdings this Quarter 698955101 - PARABILIS MEDICINES INC $175,517,789 Holding81221K108 - SEAPORT THERAPEUTICS INC $136,600,437 Holding10170A100 - BOUNDLESS BIO INC $6,735,238 Holding Largest Purchases this Quarter PARABILIS MEDICINES INC 6,412,780 shares (about $175.52M)SEAPORT THERAPEUTICS INC 6,294,951 shares (about $136.60M)BOUNDLESS BIO INC 2,694,095 shares (about $6.74M) Largest Sales this Quarter Vir Biotechnology 222,500 shares (about $2.27M) Sector Allocation Over TimeMap of 500 Largest Holdings ofArch Venture Management, LLC Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorPARABILIS MEDICINES INC$175,517,789$175,517,789 â–²New Holding6,412,78016.0%COMBEAMBeam Therapeutics$155,771,9290.0%4,540,13214.2%HealthcareRAPPORT THERAPEUTICS INC$155,376,5120.0%3,728,73814.1%COMSEAPORT THERAPEUTICS INC$136,600,437$136,600,437 â–²New Holding6,294,95112.4%COMMON STOCKERASErasca$129,917,3240.0%7,091,55711.8%HealthcareVIRVir Biotechnology$129,353,521$2,267,275 â–¼-1.7%12,694,16311.8%HealthcareMAZE THERAPEUTICS INC$122,983,5820.0%4,120,05311.2%COMLYELL IMMUNOPHARMA INC$45,525,2110.0%3,247,1624.1%COM NEWGENERATE BIOMEDICINES INC$32,802,4670.0%1,944,4263.0%COM SHSTXG10x Genomics$8,351,7560.0%217,8340.8%HealthcareBOUNDLESS BIO INC$6,735,238$6,735,238 â–²New Holding2,694,0950.6%COMGOSSGossamer Bio$1,326,0040.0%8,055,9160.1%HealthcareQ32 BIO INC$0$2,057,494 â–¼-100.0%00.0%COMShowing largest 100 holdings. View all holdings. More Institutional Buying and Selling Information SEC Filings and Trading Data SEC Filings 13F Filings Top 13F Buys Top 13F Sells Unlock superior investment research and tools. Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools and reports. Get MarketBeat All Access MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In Email Me a Login Link or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
