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
Yalonda HowzeCHIEF LEGAL OFFICER2025-04-15983$0.37
$361.74Sell
Antoinette PaoneCHIEF OPERATING OFFICER2025-04-15468$0.37
$172.22Sell
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
Geoff McDonoughPRESIDENT AND CEO2025-01-151,828$0.89
$1.62kSell
Antoinette PaoneCHIEF OPERATING OFFICER2025-01-15552$0.89
$490.18Sell

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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 Inc13.52%9,061,839$3.11MInstitution
Atlas Venture Life Science Advisors LLC12.35%8,279,484$2.84MInstitution
Atlas Venture Fund X LP12.35%8,278,876$2.84MInsider
Fmr LLC7.09%4,752,415$1.63MInstitution
Zone Healthcare Holdings LLC5.72%3,837,638$1.32MInsider
William Seybold5.72%3,837,638$1.32MInsider
Blackrock Inc5.08%3,405,178$1.17MInstitution
Siren LLC4.43%2,968,925$1.02MInstitution
Invus Public Equities LP4.20%2,814,191$965.27kInsider
Vanguard Group Inc3.91%2,619,709$898.56kInstitution

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GBIO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
GBIO60.72%39.28%Net BuyingNet Selling
ELEV57.15%20.04%Net SellingNet Selling
CTXR4.90%95.10%
FGEN72.36%27.64%Net BuyingNet Buying
FBLG16.79%15.84%Net BuyingNet Buying

Generation Bio Co Stock Ownership FAQ

Who owns Generation Bio Co?

Generation Bio Co (NASDAQ: GBIO) is owned by 71.17% institutional shareholders, 46.04% 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 12.35% of the company. Atlas Venture Fund X LP's Generation Bio Co shares are currently valued at $2.84M.

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