ARCH Venture Management, LLC
Holdings as of 2026-06-30, filed 2026-08-14
This is history, not a current position. These holdings describe 2026-06-30, and the report became public 45 days later. The portfolio has changed since.
Aggregates
computed from the positions belowPositions reported
12
Value reported by manager
$1.1B
Sum of our stored positions
$1.1B
should match the line above
Disclosure lag
45 d
quarter end to filing
Top 5 concentration
68.5%
of the positions shown
New positions
0
vs previous quarter
Exited
0
vs previous quarter
Option positions
0
puts and calls
Positions
12 largest shown| Issuer | Class | Value | Shares | Type | CUSIP |
|---|---|---|---|---|---|
| PARABILIS MEDICINES INC | COM | $175.5M | 6,412,780 | — | 698955101 |
| BEAM THERAPEUTICS INC | COM | $155.8M | 4,540,132 | — | 07373V105 |
| RAPPORT THERAPEUTICS INC | COM | $155.4M | 3,728,738 | — | 75383L102 |
| SEAPORT THERAPEUTICS INC | COMMON STOCK | $136.6M | 6,294,951 | — | 81221K108 |
| ERASCA INC | COM | $129.9M | 7,091,557 | — | 29479A108 |
| VIR BIOTECHNOLOGY INC | COM | $129.4M | 12,694,163 | — | 92764N102 |
| MAZE THERAPEUTICS INC | COM | $123M | 4,120,053 | — | 578784100 |
| LYELL IMMUNOPHARMA INC | COM NEW | $45.5M | 3,247,162 | — | 55083R203 |
| GENERATE BIOMEDICINES INC | COM SHS | $32.8M | 1,944,426 | — | 370920100 |
| 10X GENOMICS INC | CL A COM | $8.4M | 217,834 | — | 88025U109 |
| BOUNDLESS BIO INC | COM | $6.7M | 2,694,095 | — | 10170A100 |
| GOSSAMER BIO INC | COM | $1.3M | 8,055,916 | — | 38341P102 |
Values are shown exactly as filed. Before 2023 managers reported in thousands of dollars and afterwards in whole dollars; the reporting unit is not always determinable from the document, so nothing is converted automatically.
Source: U.S. Securities and Exchange Commission, Form 13F · as of 2026-08-14