Generation Bio Co (GBIO) Ownership

5.41 ↑0.27 (5.25%)
As of Market Close on May 20th, 2022.

Institutional Ownership

T. Rowe Price Associates, Inc. is the biggest individual institutional holder of Generation Bio Co (GBIO), owning a total of 8.6 million shares. Combined, the top 83 institutional holders of GBIO own 309.37% of the company with a total of 175.8 million shares.

In the latest ownership report, the top 83 institutional holders have increased their combined ownership of GBIO by 18.6 million shares, a 9.58% increase from the quarter prior.

Institution Ownership Chart

Your browser does not support this chart.

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
T. Rowe Price Associates, Inc.15.170%0.219%8,647,12118,9052021-12-31
T. Rowe Price Associates, Inc.15.161%17.182%8,628,2161,265,1012021-09-30
FMR Inc14.976%0.228%8,536,46219,3752021-12-31
FMR Inc14.966%0.260%8,517,08722,0652021-09-30
FMR Inc14.961%0.365%8,495,02230,9132021-06-30
FMR Inc14.945%17.870%8,464,1091,283,2452021-03-31
T. Rowe Price Associates, Inc.12.968%13.549%7,363,115878,5712021-06-30
T. Rowe Price Associates, Inc.11.450%47.571%6,484,5442,090,3602021-03-31
Bellevue Group AG6.793%56.630%3,872,1801,400,0002021-12-31
Bellevue Group AG6.450%-4.907%3,682,180-190,0002022-03-31
Vanguard Group Inc6.306%1.222%3,594,46143,3862021-12-31
Vanguard Group Inc6.240%10.100%3,551,075325,7492021-09-30
Farallon Capital Management, L.L.C.6.164%7.017%3,500,000229,5002021-06-30
Farallon Capital Management, L.L.C.6.150%0.000%3,500,00002021-09-30
Farallon Capital Management, L.L.C.6.140%0.000%3,500,00002021-12-31
Farallon Capital Management, L.L.C.5.775%44.150%3,270,5001,001,6812021-03-31
Vanguard Group Inc5.680%9.878%3,225,326289,9442021-06-30
BlackRock Inc5.557%1.361%3,167,65642,5172021-12-31
Vanguard Group Inc5.183%216.843%2,935,3822,008,9362021-03-31
BlackRock Inc5.144%117.928%2,913,4551,576,5652021-03-31
BlackRock Inc5.020%-2.173%2,850,140-63,3152021-06-30
Artal Group S A4.969%0.000%2,814,19102021-03-31
Artal Group S A4.956%0.000%2,814,19102021-06-30
Artal Group S A4.945%0.000%2,814,19102021-09-30
Artal Group S A4.937%0.000%2,814,19102021-12-31
Bellevue Group AG4.365%3.552%2,478,18085,0002021-06-30
Bellevue Group AG4.344%-0.242%2,472,180-6,0002021-09-30
Bellevue Group AG4.226%2.572%2,393,18060,0002021-03-31
State Street Corporation3.952%6.228%2,244,201131,5742021-06-30
State Street Corporation3.730%295.582%2,112,6271,578,5712021-03-31
Yiheng Capital LLC3.465%23.464%1,975,146375,3722021-12-31
State Street Corporation3.417%7.468%1,947,909135,3572021-12-31
State Street Corporation3.185%-19.234%1,812,552-431,6492021-09-30
JPMorgan Chase & Co3.180%23.456%1,809,978343,8862021-09-30
Casdin Capital, LLC2.845%0.000%1,611,21402021-03-31
Casdin Capital, LLC2.838%0.000%1,611,21402021-06-30
Yiheng Capital LLC2.811%12.940%1,599,774183,2912021-09-30
Carmignac Gestion2.712%0.000%1,535,7361,535,7362021-03-31
JPMorgan Chase & Co2.671%94.176%1,512,765733,6952021-03-31
Carmignac Gestion2.595%-4.051%1,473,524-62,2122021-06-30
Carmignac Gestion2.588%-0.061%1,472,624-9002021-09-30
JPMorgan Chase & Co2.582%-3.085%1,466,092-46,6732021-06-30
Yiheng Capital LLC2.495%0.000%1,416,4831,416,4832021-06-30
Casdin Capital, LLC2.327%-17.809%1,324,275-286,9392021-09-30
Casdin Capital, LLC2.323%0.000%1,324,27502021-12-31
Victory Capital Management Inc.2.238%13.610%1,273,547152,5672021-09-30
Victory Capital Management Inc.1.974%3.525%1,120,98038,1722021-06-30
Victory Capital Management Inc.1.912%50.526%1,082,808363,4592021-03-31
Deerfield Management Co1.585%-6.600%897,779-63,4362021-03-31
Geode Capital Management, LLC1.382%39.754%786,640223,7672021-09-30
Geode Capital Management, LLC1.314%-4.757%749,216-37,4242021-12-31
Ensign Peak Advisors Inc1.282%1.566%727,79611,2202021-06-30
Ensign Peak Advisors Inc1.265%144.718%716,576423,7592021-03-31
Ensign Peak Advisors Inc1.103%-13.745%627,763-100,0332021-09-30
Bank of New York Mellon Corp1.096%9.598%622,07354,4792021-06-30
Bank of New York Mellon Corp1.067%-5.228%608,299-33,5582021-12-31
Wellington Management Company LLP1.010%-75.190%571,705-1,732,6282021-03-31
Bank of New York Mellon Corp1.002%92.953%567,594273,4322021-03-31
Geode Capital Management, LLC0.991%149.510%562,873337,2822021-06-30
JPMorgan Chase & Co0.986%-68.950%562,005-1,247,9732021-12-31
Millennium Management LLC0.945%0.000%538,391538,3912021-12-31
Goldman Sachs Group Inc0.926%215.906%524,356358,3712021-03-31
Harvard Management Co Inc0.905%-1.747%512,349-9,1112021-03-31
Harvard Management Co Inc0.902%0.000%512,34902021-06-30
Harvard Management Co Inc0.897%-0.389%510,354-1,9952021-09-30
Harvard Management Co Inc0.895%0.000%510,35402021-12-31
Harvard Management Co Inc0.894%0.000%510,35402022-03-31
Marshall Wace North America LP0.787%787.900%448,789398,2442021-09-30
Northern Trust Corp0.765%7.421%435,51630,0862021-09-30
Northern Trust Corp0.737%-3.520%420,184-15,3322021-12-31
Northern Trust Corp0.714%4.635%405,43017,9582021-06-30
Northern Trust Corp0.684%159.187%387,472237,9772021-03-31
Goldman Sachs Group Inc0.667%-27.793%378,623-145,7332021-06-30
Goldman Sachs Group Inc0.613%-7.815%349,034-29,5892021-09-30
Charles Schwab Investment Management Inc0.559%4.483%318,57513,6702021-12-31
Boston Co Asset Management LLC0.550%8.812%311,99025,2672021-06-30
Charles Schwab Investment Management Inc0.536%57.253%304,905111,0112021-09-30
Boston Co Asset Management LLC0.506%69.782%286,723117,8462021-03-31
Morgan Stanley - Brokerage Accounts0.428%3.106%244,1517,3552021-12-31
Two Sigma Investments LLC0.426%0.000%242,982242,9822021-12-31
TD Asset Management Inc0.417%25.500%237,62148,2812021-12-31
Morgan Stanley - Brokerage Accounts0.416%-6.886%236,796-17,5122021-09-30
TD Asset Management Inc0.333%6.422%189,34011,4252021-09-30

Mutual Fund Ownership

BB Biotech AG Ord is the biggest individual fund holder of Generation Bio Co (GBIO), owning a total of 3.9 million shares. Combined, the top 179 mutual fund holders of GBIO own 333.23% of the company with a total of 189.5 million shares.

In the latest ownership report, the top 179 mutual funds have increased their combined ownership of GBIO by 5.4 million shares, a 2.77% increase from the quarter prior.

Mutual Funds Chart

Your browser does not support this chart.

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
BB Biotech AG Ord6.771%57.069%3,853,1801,400,0002021-12-31
BB Biotech AG Ord6.427%-4.931%3,663,180-190,0002022-03-31
T. Rowe Price New Horizons4.593%18.324%2,607,734403,8482021-09-30
T. Rowe Price New Horizons4.473%-2.381%2,545,633-62,1012021-12-31
T. Rowe Price New Horizons4.461%-0.114%2,542,733-2,9002022-03-31
BB Biotech AG Ord4.321%2.507%2,453,18060,0002021-06-30
BB Biotech AG Ord4.321%0.000%2,453,18002021-09-30
Fidelity® Growth Company4.307%1.418%2,455,11934,3272022-02-28
Fidelity® Growth Company4.276%-0.592%2,440,590-14,5292022-03-31
Fidelity® Growth Company4.275%0.891%2,427,28721,4342021-06-30
Fidelity® Growth Company4.273%0.694%2,426,15116,7202021-08-31
Fidelity® Growth Company4.256%-0.396%2,416,533-9,6182021-09-30
Fidelity® Growth Company4.254%1.785%2,420,79242,4472021-12-31
Fidelity® Growth Company4.248%-0.664%2,405,853-16,0852021-05-31
Fidelity® Growth Company4.247%0.000%2,420,79202022-01-31
Fidelity Growth Compy Commingled Pl 34.245%0.778%2,422,59518,7062022-03-31
Fidelity® Growth Company4.243%-0.736%2,409,431-17,8562021-07-31
BB Biotech AG Ord4.226%2.572%2,393,18060,0002021-03-31
Fidelity Growth Compy Commingled Pl 34.217%4.854%2,403,889111,2822022-02-28
Fidelity® Growth Company4.214%-0.758%2,398,227-18,3062021-10-31
Fidelity® Growth Company4.179%-0.829%2,378,345-19,8822021-11-30
Fidelity Growth Compy Commingled Pl 34.029%3.881%2,292,60785,6512021-12-31
Fidelity Growth Compy Commingled Pl 34.022%0.000%2,292,60702022-01-31
T. Rowe Price New Horizons3.892%16.087%2,203,886305,4002021-06-30
Fidelity Growth Compy Commingled Pl 33.878%1.274%2,206,95627,7552021-11-30
Fidelity Growth Compy Commingled Pl 33.829%0.501%2,179,20110,8682021-10-31
Fidelity Growth Compy Commingled Pl 33.819%0.446%2,168,3339,6182021-09-30
Fidelity Growth Compy Commingled Pl 33.802%4.998%2,158,715102,7552021-08-31
Fidelity Growth Compy Commingled Pl 33.621%2.219%2,055,96044,6352021-06-30
Fidelity Growth Compy Commingled Pl 33.621%0.000%2,055,96002021-07-31
Fidelity Growth Compy Commingled Pl 33.552%0.647%2,011,32512,9382021-05-31
T. Rowe Price Health Sciences3.058%5.002%1,736,21982,7072021-09-30
T. Rowe Price Health Sciences3.054%2.099%1,740,67335,7792022-03-31
T. Rowe Price Health Sciences2.996%-1.804%1,704,894-31,3252021-12-31
SPDR® S&P Biotech ETF2.932%-2.194%1,664,688-37,3362021-08-31
T. Rowe Price Health Sciences2.920%17.399%1,653,512245,0612021-06-30
Vanguard Total Stock Mkt Idx Inv2.851%509.489%1,624,8251,358,2372022-03-31
SPDR® S&P Biotech ETF2.714%-1.333%1,541,192-20,8222021-07-31
SPDR® S&P Biotech ETF2.680%-3.345%1,518,027-52,5402021-06-30
SPDR® S&P Biotech ETF2.336%0.504%1,331,4336,6752022-02-28
SPDR® S&P Biotech ETF2.161%-2.264%1,229,528-28,4802022-01-31
SPDR® S&P Biotech ETF2.011%0.672%1,144,5337,6422021-12-30
SPDR® S&P Biotech ETF1.985%-1.283%1,129,848-14,6852021-12-31
Vanguard Total Stock Mkt Idx Inv1.831%10.463%1,037,08498,2282021-06-30
Vanguard Total Stock Mkt Idx Inv1.828%0.092%1,038,0409562021-09-30
Vanguard Total Stock Mkt Idx Inv1.827%0.000%1,037,08402021-07-31
Vanguard Total Stock Mkt Idx Inv1.827%0.000%1,037,08402021-08-31
Vanguard Total Stock Mkt Idx Inv1.824%0.008%1,038,127872021-10-31
Vanguard Total Stock Mkt Idx Inv1.824%0.000%1,038,12702021-11-30
Vanguard Total Stock Mkt Idx Inv1.824%0.000%1,038,12702021-12-31
Vanguard Total Stock Mkt Idx Inv1.824%0.000%1,038,12702022-01-31
iShares Russell 2000 ETF1.819%-0.016%1,035,123-1642021-11-30
iShares Russell 2000 ETF1.804%-0.414%1,026,759-4,2642021-12-29
SPDR® S&P Biotech ETF1.793%1.992%1,020,51019,9352021-11-30
iShares Russell 2000 ETF1.793%0.064%1,020,3636562021-12-31
iShares Russell 2000 ETF1.787%0.308%1,014,6893,1162021-10-29
iShares Russell 2000 ETF1.776%0.580%1,008,2025,8102021-08-31
SPDR® S&P Biotech ETF1.763%-0.131%1,000,914-1,3082021-09-30
iShares Russell 2000 ETF1.761%-0.723%997,112-7,2602021-06-30
iShares Russell 2000 ETF1.759%-1.021%1,001,175-10,3322022-01-31
SPDR® S&P Biotech ETF1.757%0.659%999,6066,5402021-10-31
SPDR® S&P Biotech ETF1.749%3.031%993,06629,2122021-10-29
iShares Russell 2000 ETF1.749%0.278%992,8612,7542021-09-30
iShares Russell 2000 ETF1.744%-0.964%993,959-9,6762022-03-30
iShares Russell 2000 ETF1.742%-0.591%992,975-5,9042022-02-28
iShares Russell 2000 ETF1.738%-0.314%990,843-3,1162022-03-31
iShares Russell 2000 ETF1.736%-0.698%985,562-6,9302021-07-30
T. Rowe Price Small-Cap Stock1.726%15.699%980,182133,0002021-09-30
T. Rowe Price Small-Cap Stock1.716%-0.347%976,782-3,4002021-12-31
iShares Russell 2000 ETF1.703%0.458%972,1474,4282022-04-28
T. Rowe Price Small-Cap Stock1.702%-0.696%969,982-6,8002022-03-31
iShares Russell 2000 ETF1.682%-1.232%960,175-11,9722022-04-29
Vanguard Small Cap Index1.670%2.128%950,29319,8012021-12-31
Vanguard Small Cap Index1.635%0.592%930,4925,4722021-11-30
Vanguard Small Cap Index1.632%0.225%930,3532,0902022-02-28
Vanguard Small Cap Index1.631%-2.318%928,263-22,0302022-01-31
Vanguard Small Cap Index1.625%0.335%925,0203,0902021-10-31
Vanguard Small Cap Index1.624%0.443%921,9304,0642021-09-30
Vanguard Small Cap Index1.617%0.166%917,8661,5202021-08-31
Vanguard Small Cap Index1.614%10.916%914,21889,9762021-06-30
Vanguard Small Cap Index1.614%0.233%916,3462,1282021-07-31
Fidelity® Blue Chip Growth1.501%0.000%849,78102021-05-31
T. Rowe Price Small-Cap Stock1.496%4.891%847,18239,5002021-06-30
Fidelity® Blue Chip Growth1.495%-0.143%848,568-1,2132021-06-30
Fidelity® Blue Chip Growth1.492%-0.185%847,002-1,5662021-07-31
Fidelity® Blue Chip Growth1.486%-0.366%843,901-3,1012021-08-31
Fidelity® Blue Chip Growth1.485%-0.056%843,425-4762021-09-30
Fidelity® Blue Chip Growth1.482%0.000%843,42502021-10-31
Fidelity® Blue Chip Growth1.482%0.000%843,42502021-11-30
Fidelity® Blue Chip Growth1.479%-0.192%841,805-1,6202021-12-31
Fidelity® Blue Chip Growth1.477%0.000%841,80502022-01-31
Fidelity® Blue Chip Growth1.477%0.000%841,80502022-02-28
Fidelity® Blue Chip Growth1.475%0.000%841,80502022-03-31
JPM Thematics Genetic Thrps C2 Acc USD1.286%6.051%729,99241,6482021-08-31
Carmignac Investissement A EUR Acc1.257%0.000%713,96302021-03-31
Carmignac Investissement A EUR Acc1.257%0.000%713,96302021-07-31
Carmignac Investissement A EUR Acc1.257%0.000%713,96302021-08-31
Carmignac Investissement A EUR Acc1.255%0.000%713,96302021-09-30
Carmignac Investissement A EUR Acc1.255%0.000%713,96302021-10-31
Carmignac Investissement A EUR Acc1.255%0.000%713,96302021-11-30
JPM Thematics Genetic Thrps C2 Acc USD1.212%4.377%688,34428,8682021-07-31
JPM Thematics Genetic Thrps C2 Acc USD1.185%-7.863%672,596-57,3962021-09-30
JPM Thematics Genetic Thrps C2 Acc USD1.165%1.521%659,4769,8802021-06-30
Fidelity® Series Growth Company1.136%0.606%647,3603,9002022-02-28
Fidelity® Series Growth Company1.134%0.000%647,36002022-03-31
Carmignac Patrimoine A EUR Acc1.131%350.255%642,415499,7372021-03-31
Fidelity® Series Growth Company1.131%2.143%643,46013,5002021-12-31
Fidelity® Series Growth Company1.129%0.000%643,46002022-01-31
Fidelity® Series Growth Company1.107%0.191%629,9601,2002021-11-30
Fidelity® Series Growth Company1.107%1.815%628,46011,2002021-08-31
Fidelity® Series Growth Company1.107%0.000%628,46002021-09-30
Fidelity® Series Growth Company1.105%0.048%628,7603002021-10-31
Victory RS Small Cap Growth A1.087%3.149%617,41018,8502021-09-30
Victory RS Small Cap Growth CIT N1.087%3.149%617,41018,8502021-09-30
Fidelity® Series Growth Company1.087%1.180%617,2607,2002021-06-30
Fidelity® Series Growth Company1.087%0.000%617,26002021-07-31
Fidelity® Series Growth Company1.077%0.263%610,0601,6002021-05-31
Carmignac Patrimoine A EUR Acc1.076%0.000%610,96702021-07-31
Carmignac Patrimoine A EUR Acc1.076%0.000%610,96702021-08-31
Carmignac Patrimoine A EUR Acc1.074%0.000%610,96702021-09-30
Carmignac Patrimoine A EUR Acc1.074%0.000%610,96702021-10-31
Carmignac Patrimoine A EUR Acc1.074%0.000%610,96702021-11-30
JPMorgan Small Cap Growth A1.064%31.807%604,009145,7552021-09-30
Victory RS Small Cap Growth A1.057%8.053%598,56044,6102021-06-30
Victory RS Small Cap Growth CIT N1.057%8.053%598,56044,6102021-06-30
JPMorgan Small Cap Growth A1.051%-1.000%597,969-6,0402021-10-31
JPMorgan Small Cap Growth A1.051%0.000%597,96902021-11-30
Vanguard Extended Market Index Investor1.038%2.221%590,84512,8382021-12-31
Vanguard Extended Market Index Investor1.038%0.000%590,84502022-01-31
Vanguard Extended Market Index Investor1.037%0.000%590,84502022-02-28
Vanguard Extended Market Index Investor1.037%0.000%590,84502022-03-31
Vanguard Small Cap Growth Index Inv1.026%0.019%583,8311112021-11-30
Vanguard Small Cap Growth Index Inv1.026%0.248%583,7201,4432021-10-31
Vanguard Small Cap Growth Index Inv1.026%0.488%582,2772,8282021-09-30
Vanguard Small Cap Growth Index Inv1.022%7.154%578,89438,6472021-06-30
Vanguard Small Cap Growth Index Inv1.021%0.134%579,6717772021-07-31
Vanguard Small Cap Growth Index Inv1.021%-0.038%579,449-2222021-08-31
Vanguard Extended Market Index Investor1.016%0.235%578,0071,3532021-11-30
Vanguard Small Cap Growth Index Inv1.015%-1.023%577,859-5,9722021-12-31
Vanguard Extended Market Index Investor1.013%90.311%575,416273,0602021-09-30
Vanguard Extended Market Index Investor1.013%0.215%576,6541,2382021-10-31
T. Rowe Price Instl Small-Cap Stock1.010%14.193%573,67971,3002021-09-30
T. Rowe Price US Small-Cap Core Equity1.010%14.193%573,67971,3002021-09-30
Vanguard Small Cap Growth Index Inv1.009%-0.634%574,196-3,6632022-01-31
Vanguard Small Cap Growth Index Inv1.009%0.155%575,0848882022-02-28
JPM Thematics Genetic Thrps C2 Acc USD1.007%28.919%573,817128,7182022-03-31
JPM Thematics Genetic Thrps C2 Acc USD0.978%-2.677%558,455-15,3622022-04-30
Vanguard Small Cap Index0.971%-40.490%553,651-376,7022022-03-31
Fidelity® Select Health Care0.892%2.355%508,55311,7002022-02-28
Fidelity® Select Health Care0.891%0.000%508,55302022-03-31
T. Rowe Price Instl Small-Cap Stock0.887%9.147%502,37942,1022021-06-30
T. Rowe Price US Small-Cap Core Equity0.887%9.147%502,37942,1022021-06-30
Fidelity® Select Health Care0.873%0.202%496,8531,0002021-11-30
Fidelity® Select Health Care0.873%0.000%496,85302021-12-31
T. Rowe Price Instl Small-Cap Stock0.873%0.404%497,5792,0002022-03-31
T. Rowe Price US Small-Cap Core Equity0.872%-13.265%497,579-76,1002022-03-31
Fidelity® Select Health Care0.872%0.000%496,85302022-01-31
T. Rowe Price Instl Small-Cap Stock0.871%-13.614%495,579-78,1002021-12-31
JPMorgan Small Cap Growth A0.834%-1.817%472,356-8,7392021-05-31
Fidelity® Growth Company K60.831%2.924%473,86413,4642022-02-28
JPM Thematics Genetic Thrps C2 Acc USD0.823%-3.160%468,569-15,2882021-12-31
Fidelity® Growth Company K60.823%-0.882%469,687-4,1772022-03-31
JPMorgan Small Cap Growth A0.821%-1.357%465,946-6,4102021-06-30
JPMorgan Small Cap Growth A0.821%0.000%465,94602021-07-31
Fidelity® Growth Company K60.809%8.030%460,40034,2232021-12-31
Fidelity® Growth Company K60.808%0.000%460,40002022-01-31
JPM Thematics Genetic Thrps C2 Acc USD0.807%-1.794%460,162-8,4072022-01-31
JPM Thematics Genetic Thrps C2 Acc USD0.781%-3.273%445,099-15,0632022-02-28
Fidelity® Select Health Care0.774%1.244%439,4595,4002021-06-30
Fidelity® Select Health Care0.774%0.000%439,45902021-07-31
T. Rowe Price U.S. SC Core Eq Tr-Z0.772%9.990%439,91739,9552022-03-31
T. Rowe Price QM US Small-Cap Gr Eq0.768%0.000%437,60002021-12-31
T. Rowe Price QM US Small-Cap Gr Eq0.768%0.000%437,60002022-03-31
Fidelity® Select Health Care0.766%0.277%434,0591,2002021-05-31
T. Rowe Price U.S. SC Core Eq Tr-Z0.702%14.351%399,96250,1942021-12-31
iShares Biotechnology ETF0.657%-0.824%374,507-3,1132022-03-30
iShares Biotechnology ETF0.657%0.000%374,50702022-03-31
iShares Biotechnology ETF0.637%-0.155%363,753-5662022-04-28
iShares Biotechnology ETF0.636%-0.156%363,187-5662022-04-29

Discussions

Please log in or register to share your thoughts.

glaglewd

$GBIO cup and handle forming

0 Like Report
haltdaytrader

$GBIO we all speculate but nobody knows what going to happen.

0 Like Report
145zip

$GBIO Green by EOD guarentee

0 Like Report
delaina

$GBIO Slapping that ask today

0 Like Report