Arkolith/Insider Trading/TRAX/Form 4

EcoR1 Capital, LLC

10% OwnerFirst Tracks Biotherapeutics, Inc. (TRAX) · full profile →Form 4 · filed Apr 22, 2026
Net Buying
Open-Market Buys
$65.0M
Open-Market Sells
$0
Net Open-Market Flow
$65.0M
Transactions
1
1 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Apr 20, 2026Buy(S)4.7M$13.81$65.0M3.2M

Transaction Codes

S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000935836-26-000208) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML