Kristine Peterson, Director at ImmunoGen, Inc. (IMGN), sold 20,000 shares at $28.90 ($578K) on 2023-11-30, disclosed to the SEC on 2023-12-05.
Scheduled sale ($578k) by Director under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.