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ARCH Venture Management, LLC 13F holdings

Filed 2026-08-14 · ARCH Venture Management, LLC · 12 positions · $1.1B

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TickerCompanySharesValue% of portfolio
PBLSPARABILIS MEDICINES INC6.4M$175.5M16.0%
BEAMBEAM THERAPEUTICS INC4.5M$155.8M14.2%
RAPPRAPPORT THERAPEUTICS INC3.7M$155.4M14.1%
SPTXSEAPORT THERAPEUTICS INC6.3M$136.6M12.4%
ERASERASCA INC7.1M$129.9M11.8%
VIRVIR BIOTECHNOLOGY INC12.7M$129.4M11.8%
MAZEMAZE THERAPEUTICS INC4.1M$123.0M11.2%
LYELLYELL IMMUNOPHARMA INC3.2M$45.5M4.1%
GENBGENERATE BIOMEDICINES INC1.9M$32.8M3.0%
TXG10X GENOMICS INC217.8K$8.4M0.8%
—BOUNDLESS BIO INC2.7M$6.7M0.6%
GOSSEURGOSSAMER BIO INC8.1M$1.3M0.1%
Top Fund Holdings
13F
Top Fund Holdings

What did the whales just file?

13F data from SEC EDGAR. Quotes are delayed and not for trading. Not investment advice.

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13F data from SEC EDGAR. Quotes are delayed and not for trading. Not investment advice.
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