SEC Insider Transactions from Zimmermann Tracy.

Last updated: 2026-03-14 09:51 UTC | Total transactions: 9

Zimmermann Tracy has filed 9 insider transactions across 1 company since January 2024.

Most recent transaction: a option exercise of 5021 shares of Generation Bio Co. ($GBIO) on January 29, 2024.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Jan. 29, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER M Common Stock 5021 $0.00 50,640.0000 64,483,520 11.01% 0.01%
Jan. 29, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER F Common Stock 1476 $1.90 49,164.0000 64,483,520 2.91% 0.00%
Jan. 29, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER M Restricted Stock Units 5021 $0.00 0.0000 64,483,520 100.00% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER M Common Stock 7437 $0.00 43,822.0000 64,483,520 20.44% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER F Common Stock 2577 $1.91 41,245.0000 64,483,520 5.88% 0.00%
Jan. 15, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER M Common Stock 6694 $0.00 47,939.0000 64,483,520 16.23% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER F Common Stock 2320 $1.91 45,619.0000 64,483,520 4.84% 0.00%
Jan. 15, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER M Restricted Stock Units 7437 $0.00 0.0000 64,483,520 100.00% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Zimmermann Tracy CHIEF DEVELOPMENT OFFICER M Restricted Stock Units 6694 $0.00 20,081.0000 64,483,520 25.00% 0.01%