ARCH Venture Fund IX, L.P.

BOLD

ARCH Venture Fund IX, L.P. serves as 10 percent owner at Boundless Bio, Inc. (BOLD). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

1 trades

$39.8K

Net Position

Net Seller

$39.8K

Companies Traded

BOLD

Active Period

Jul 2026

1 total trades

Most Recent

Sell BOLD

Jul 6, 2026 · $39.8K

ARCH Venture Fund IX, L.P.'s Insider Trading at Boundless Bio, Inc. (BOLD)

Buys

0 · $0.00

Sells

1 · $39.8K

Total Shares Bought

Total Shares Sold

16,000

BOLD Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Jul 6, 2026	Sell	16,000	$2.49	$39.8K	0

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