Heiden William K

Heiden William K is listed in filings as Director at MacroGenics, Inc.. This profile follows SEC Form 4 activity through May 20, 2026, including purchase activity. Recent filings connect the profile to MacroGenics, Inc. (MGNX) and Atara Biotherapeutics, Inc. (ATRA). The current snapshot covers public activity from May 22, 2025 to May 20, 2026. Reported amounts are shown as $99.4K to $76.8K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.