Arkolith/Insider Trading/MACK/Form 4

Western Standard Partners LP

InsiderMERRIMACK PHARMACEUTICALS INC (MACK) · full profile →Form 4 · filed Nov 20, 2023
Net Buying
Open-Market Buys
$4K
Open-Market Sells
$0
Net Open-Market Flow
$4K
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Nov 17, 2023Buy(P)235$12.50$3K1.7M
Nov 17, 2023Buy(P)65$12.50$813460K

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000950170-23-065235) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML