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

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Generation Bio Co insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Geoff McDonoughPRESIDENT AND CEO2025-07-151,548$0.43
$659.45Sell
Antoinette PaoneCHIEF OPERATING OFFICER2025-07-15468$0.43
$199.37Sell
Phillip SamayoaCHIEF SCIENTIFIC OFFICER2025-07-15337$0.43
$143.56Sell
Yalonda HowzeCHIEF LEGAL OFFICER2025-07-15983$0.43
$418.76Sell
Kevin John ConwayChief Financial Officer2025-07-15173$0.43
$73.70Sell
Geoff McDonoughPRESIDENT AND CEO2025-04-151,548$0.37
$569.66Sell
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

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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 Inc125.64%8,462,611$53.15MInstitution
Atlas Venture Life Science Advisors LLC122.92%8,279,484$52.00MInstitution
Atlas Venture Fund X LP122.91%8,278,876$51.99MInsider
William Seybold56.98%3,837,638$24.10MInsider
Zone Healthcare Holdings LLC56.98%3,837,638$24.10MInsider
Siren LLC44.08%2,968,925$18.64MInstitution
Invus Public Equities LP41.78%2,814,191$17.67MInsider
Renaissance Technologies LLC38.32%2,580,780$16.21MInstitution
Fmr LLC34.82%2,345,624$14.73MInstitution
Vanguard Group Inc34.12%2,298,347$14.43MInstitution

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GBIO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
GBIO57.29%42.71%Net BuyingNet Selling
PEPG70.80%18.66%Net BuyingNet Buying
SNTI20.78%79.22%Net Buying
ACRV54.47%45.53%Net SellingNet Selling
PLUR0.06%99.94%Net Buying
View Top Biotech Stocks

Generation Bio Co Stock Ownership FAQ

Who owns Generation Bio Co?

Generation Bio Co (NASDAQ: GBIO) is owned by 615.38% institutional shareholders, 458.82% 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 122.91% of the company. Atlas Venture Fund X LP's Generation Bio Co shares are currently valued at $53.40M.

If you're new to stock investing, here's how to buy Generation Bio Co stock.
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