Arkolith/Insider Trading/LAB/Form 4

Casdin Partners Master Fund, L.P.

Director, 10% OwnerSTANDARD BIOTOOLS INC. (LAB) · full profile →Form 4 · filed Nov 17, 2025
Net Buying
Open-Market Buys
$1.1M
Open-Market Sells
$0
Net Open-Market Flow
$1.1M
Transactions
3
3 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Nov 17, 2025Buy(P)225K$1.22$275K63.0M
Nov 14, 2025Buy(P)250K$1.24$310K62.8M
Nov 13, 2025Buy(P)450K$1.20$540K62.5M

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000919574-25-007087) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML