How many insider trades does FilingIQ track for MACK?

FilingIQ tracks 379 Form 4 insider transactions for MACK (MERRIMACK PHARMACEUTICALS INC), covering filings from Jan 15, 2015 onwards. 0 of those were filed in the last 90 days.

Are MACK insiders net buyers or net sellers?

Across the full Form 4 history for MACK, 200 transactions (53%) were open-market purchases and 45 (12%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does MACK insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

MACK insider trading

MERRIMACK PHARMACEUTICALS INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

379

Last 90 days

Buys / sells

53% / 12%

Market cap

—

MACK insider activity at a glance

FilingIQ has scored 379 insider transactions for MACK since Jan 15, 2015. The most recent filing in our index is dated Dec 28, 2023.

Across the full history, 200 open-market purchases and 45 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on MACK insider trades is 46.8/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live MACK trades on FilingIQ Raw filings on SEC EDGAR

Frequently asked

How many insider trades does FilingIQ track for MACK?: FilingIQ tracks 379 Form 4 insider transactions for MACK (MERRIMACK PHARMACEUTICALS INC), covering filings from Jan 15, 2015 onwards. 0 of those were filed in the last 90 days.
Are MACK insiders net buyers or net sellers?: Across the full Form 4 history for MACK, 200 transactions (53%) were open-market purchases and 45 (12%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does MACK insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

Methodology & sources

Every MACK insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.