IGMS insider trading
IGM Biosciences, Inc.: insider trade history from SEC Form 4 filings.
IGMS insider activity at a glance
FilingIQ tracks 602 insider transactions for IGMS in filings since Sep 19, 2019. The most recent transaction is dated Aug 14, 2025.
Across the full history, 81 open-market purchases
and 147 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 IGMS insider trades is 58.2/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest IGMS Form 4 filings
Most recent disclosures. Sign up to filter by score, transaction code, or insider role.
Frequently asked
- How many insider trades does FilingIQ track for IGMS?
- FilingIQ tracks 602 Form 4 insider transactions for IGMS (IGM Biosciences, Inc.), covering filings from Sep 19, 2019 onwards. 0 of those are dated within the last 90 days.
- Are IGMS insiders net buyers or net sellers?
- Across the full Form 4 history for IGMS, 81 transactions (13%) were open-market purchases and 147 (24%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does IGMS insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
Methodology & sources
Every IGMS 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.