ARCH Venture Fund IX Overage, L.P.

SEC CIK: 0001666307

SEC filings (opens in a new tab)

In the past year, 1 open-market sale filing worth $39.8K and no purchases.

Current role at each company

BOLD Boundless Bio, Inc.10% Owneras of Jul 6, 2026
LYEL Lyell Immunopharma, Inc.10% Owneras of Mar 9, 2026
SANA Sana Biotechnology, Inc.10% Owneras of Feb 12, 2024
VIR Vir Biotechnology, Inc.10% Owneras of Sep 7, 2022
BEAM Beam Therapeutics Inc.10% Owneras of Jul 2, 2021

Open-market trades in the past year

Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.

Bought: –; 0 filings
Sold: $39.8K; 1 filing
Net: −$39.8K; Bought minus sold
Companies: 1; With open-market trades

Trades

Every Form 4 that lists ARCH Venture Fund IX Overage, L.P. as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.

Transaction type

Role

Minimum value (USD)

Filed from

Filed to

Filing delay at least (days)

Filing delay at most (days)

BOLD Boundless Bio, Inc.

10% Owner2 trades

Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change	Flags
Jul 6, 2026 (view filing)5:43 PM ET	Jul 1	5 days	ARCH Venture Fund IX, L.P. and 7 others10% Owner	SSale	−16.0K	$2.49	−$39.8K	−100.0%0 after
Apr 4, 2024 (view filing)4:30 PM ET	Apr 2	2 days	ARCH Venture Fund IX, L.P. and 7 others10% Owner	PPurchase	+200.0K	$16.00	+$3.20M	+20.4%1.18M after	2 lotsDuplicate filing

LYEL Lyell Immunopharma, Inc.

10% Owner1 trade

Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change	Flags
Mar 9, 2026 (view filing)4:36 PM ET	Mar 6	3 days	ARCH Venture Fund IX, L.P. and 4 others10% Owner	PPurchase	+488.1K	$25.61	+$12.5M	+52.0%1.43M after	Duplicate filing

SANA Sana Biotechnology, Inc.