Arkolith/Insider Trading/BOLD/Form 4

ARCH Venture Fund IX, L.P.

10% OwnerBoundless Bio, Inc. (BOLD) · full profile →Form 4 · filed Jul 6, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$40K
Net Open-Market Flow
-$40K
Transactions
3
2 non-derivative · 1 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jul 1, 2026Option exercise(M)16K$1.03$16K16K
Jul 1, 2026Sell(S)16K$2.49$40K0

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Jul 1, 2026Option exercise(M)16K—$00

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001012975-26-000621) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML