ARCH Venture Management, LLC

CIK: 0001274403Latest portfolio: $651.7M · Q4 2025

Holdings

9

Total Value

$651.7M

New Positions

1

Closed Positions

1

Top Holdings

#StockSharesValue% PortfolioChangeType
1
MAZEMAZE THERAPEUTICS INC.
4,120,053$170.7M26.19%
2
BEAMBEAM THERAPEUTICS INC.
4,540,132$125.9M19.31%
3
RAPPRAPPORT THERAPEUTICS INC.
3,728,738$113.1M17.36%
4
LYELLYELL IMMUNOPHARMA INC.
2,759,072$84.9M13.03%
5
VIRVIR BIOTECHNOLOGY INC.
12,916,663$77.9M11.95%
6
ERASERASCA INC.
11,055,554$41.1M6.31%
7
GOSSGOSSAMER BIO INC.
8,055,916$25.0M3.83%
8
TXG10X GENOMICS INC.
737,539$12.0M1.85%NEW
9
QTTBQ32 BIO INC.
320,482$1.1M0.16%

Quarterly Changes

New Positions

Closed Positions

Sector Breakdown

Healthcare100.0% ($1.7069312585211314e+37T)

Filing History

QuarterFiling DatePortfolio ValueHoldings
Q4 2025Feb 17, 2026$651.7M9
Q3 2025Nov 14, 2025$492.4B9
Q2 2025Aug 14, 2025$299.1B11
Q1 2025May 15, 2025$206.2B9
Q4 2024Feb 14, 2025$230.2B9

Fund Information

CIK0001274403
Most Recent FilingFeb 17, 2026
Number of Filings5

ARCH Venture Management, LLC is an institutional investment manager that files 13F reports with the SEC. As of the Q4 2025 filing, the fund reported a portfolio valued at $651.7M across 9 holdings. The largest position is MAZE THERAPEUTICS INC. (MAZE), representing 26.2% of the portfolio. Compared to the previous quarter, the fund opened 1 new positions and closed 1 positions. 13F filings are required quarterly disclosures that provide transparency into the holdings of institutional investment managers with at least $100 million in qualifying assets.