Arkolith/Insider Trading/MACK/Form 4

Western Standard Partners LP

InsiderMERRIMACK PHARMACEUTICALS INC (MACK) · full profile →Form 4 · filed Jan 31, 2023
Net Buying
Open-Market Buys
$249K
Open-Market Sells
$0
Net Open-Market Flow
$249K
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jan 27, 2023Buy(P)17K$11.40$199K1.3M
Jan 27, 2023Buy(P)4K$11.40$50K319K

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000899243-23-003033) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML