Form4insider filings, from the source

SEC Form 4 · accession 0001179110-15-006335

MERRIMACK PHARMACEUTICALS INC · MACK

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Period of report
Apr 13, 2015
Accepted (ET)
Apr 15, 2015 · 6:07 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001274792

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockApr 13, 2015M20,000$1.71A235,143D
Common StockApr 13, 2015S20,000$13.00D215,143D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Stock Option (right to buy)F2$1.71Apr 13, 2015M20,000D—Aug 3, 2015Common Stock20,0000D

Explanation of responses