ARCH Venture Management, LLC

Q1 2026 13F-HR Holdings

Location
Chicago, IL
Holdings as of
3/31/2026
Date filed
5/15/2026
Form type
13F-HR
Num holdings
10
Total value ($000)
$677,094
Net value change ($000)
+25,413 (3.9%)
New positions
1
Sold out positions
0
Turnover %
3.6%
Sector allocation + QoQ delta (equities-only)
Prev filing: 2/17/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q4 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
ERAS 73,614 179.0%
VIR 37,846 48.6%
GENB 24,305 NEW
RAPP 3,542 3.1%
QTTB 993 93.3%
Top Reduces (Value $000, Stocks/ETFs)
MAZE -47,710 -28.0%
GOSS -22,327 -89.4%
LYEL -19,786 -23.3%
BEAM -17,661 -14.0%
TXG -7,404 -61.6%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type