Arkolith/Insider Trading/MACK/Form 4

Western Standard LLC

InsiderMERRIMACK PHARMACEUTICALS INC (MACK) · full profile →Form 4 · filed Jan 4, 2023
Net Buying
Open-Market Buys
$347K
Open-Market Sells
$0
Net Open-Market Flow
$347K
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jan 3, 2023Buy(P)22K$11.33$254K1.2M
Jan 3, 2023Buy(P)8K$11.33$93K314K

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000899243-23-000581) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML