Arkolith/Insider Trading/SPTX/Form 4

ARCH Venture Partners XII, LLC

10% OwnerSeaport Therapeutics, Inc. (SPTX) · full profile →Form 4 · filed May 4, 2026
Net Buying
Open-Market Buys
$19.8M
Open-Market Sells
$0
Net Open-Market Flow
$19.8M
Transactions
5
3 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
May 4, 2026Conversion(C)2.5M——2.5M
May 4, 2026Conversion(C)2.7M——5.2M
May 4, 2026Buy(P)1.1M$18.00$19.8M6.3M

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
May 4, 2026Conversion(C)2.5M—$00
May 4, 2026Conversion(C)2.7M—$00

Transaction Codes

C
Conversion of a derivative
P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-204458) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML