NASDAQ: GBIO
Generation Bio Co Stock Ownership - Who owns Generation Bio Co?

Insider buying vs selling

Have Generation Bio Co insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Kevin John ConwayChief Financial Officer2025-04-15173$0.37
$63.66Sell
Antoinette PaoneCHIEF OPERATING OFFICER2025-04-15468$0.37
$172.22Sell
Yalonda HowzeCHIEF LEGAL OFFICER2025-04-15983$0.37
$361.74Sell
Phillip SamayoaCHIEF SCIENTIFIC OFFICER2025-04-15337$0.37
$124.02Sell
Geoff McDonoughPRESIDENT AND CEO2025-04-151,548$0.37
$569.66Sell
Yalonda HowzeCHIEF LEGAL OFFICER2025-01-151,160$0.89
$1.03kSell
Phillip SamayoaCHIEF SCIENTIFIC OFFICER2025-01-15398$0.89
$353.42Sell
Kevin John ConwayChief Financial Officer2025-01-15204$0.89
$181.15Sell
Antoinette PaoneCHIEF OPERATING OFFICER2025-01-15552$0.89
$490.18Sell
Geoff McDonoughPRESIDENT AND CEO2025-01-151,828$0.89
$1.62kSell

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Net Insider Buy/Sell (L12M) Ownership

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GBIO Shareholders

What type of owners hold Generation Bio Co stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Price T Rowe Associates Inc13.85%9,279,059$3.64MInstitution
Atlas Venture Life Science Advisors LLC12.36%8,279,484$3.25MInstitution
Atlas Venture Fund X LP12.36%8,278,876$3.25MInsider
Fmr LLC6.90%4,626,045$1.81MInstitution
William Seybold5.73%3,837,638$1.50MInsider
Zone Healthcare Holdings LLC5.73%3,837,638$1.50MInsider
Blackrock Inc5.16%3,459,065$1.36MInstitution
Bank Of America Corp4.47%2,997,739$1.18MInstitution
Siren LLC4.45%2,982,733$1.17MInstitution
Invus Public Equities LP4.20%2,814,191$1.10MInsider

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GBIO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
GBIO63.57%36.43%Net BuyingNet Selling
PYPD24.25%0.00%
ALGS4.06%95.94%
MLEC0.18%8.62%
RADX0.02%0.00%

Generation Bio Co Stock Ownership FAQ

Who owns Generation Bio Co?

Generation Bio Co (NASDAQ: GBIO) is owned by 80.37% institutional shareholders, 46.06% Generation Bio Co insiders, and 0.00% retail investors. Atlas Venture Fund X LP is the largest individual Generation Bio Co shareholder, owning 8.28M shares representing 12.36% of the company. Atlas Venture Fund X LP's Generation Bio Co shares are currently valued at $3.45M.

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