SEC Insider Transactions from Stanton Matthew.

Last updated: 2026-03-14 09:51 UTC | Total transactions: 16

Stanton Matthew has filed 16 insider transactions across 1 company since January 2024.

Most recent transaction: a option exercise of 1674 shares of Generation Bio Co. ($GBIO) on October 15, 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
Oct. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Common Stock 1674 $0.00 247,811.0000 6,673,846 0.68% 0.03%
Oct. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER F Common Stock 492 $2.42 247,319.0000 6,673,846 0.20% 0.01%
Oct. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Restricted Stock Units 1674 $0.00 15,059.0000 6,673,846 10.00% 0.03%
July 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Common Stock 1674 $0.00 246,629.0000 6,653,100 0.68% 0.03%
July 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER F Common Stock 492 $2.93 246,137.0000 6,653,100 0.20% 0.01%
July 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Restricted Stock Units 1674 $0.00 16,733.0000 6,653,100 9.09% 0.03%
April 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Common Stock 1674 $0.00 245,447.0000 66,433,640 0.69% 0.00%
April 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER F Common Stock 492 $3.70 244,955.0000 66,433,640 0.20% 0.00%
April 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Restricted Stock Units 1674 $0.00 18,407.0000 66,433,640 8.34% 0.00%
Jan. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Common Stock 7437 $0.00 241,976.0000 64,483,520 3.17% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER F Common Stock 2577 $1.91 239,399.0000 64,483,520 1.06% 0.00%
Jan. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Common Stock 6694 $0.00 246,093.0000 64,483,520 2.80% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER F Common Stock 2320 $1.91 243,773.0000 64,483,520 0.94% 0.00%
Jan. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Restricted Stock Units 7437 $0.00 0.0000 64,483,520 100.00% 0.01%
Jan. 15, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER M Restricted Stock Units 6694 $0.00 20,081.0000 64,483,520 25.00% 0.01%
Jan. 2, 2024 Generation Bio Co. $GBIO Stanton Matthew CHIEF SCIENTIFIC OFFICER A Stock Option (right to buy) 160650 $0.00 160,650.0000 64,483,520 9999.99% 0.25%