Generation Bio Co (GBIO) Ownership

3.26 ↑0.45 (16.01%)
As of April 23, 2024, 3:59pm EST.

Institutional Ownership

T. Rowe Price Associates, Inc. is the biggest individual institutional holder of Generation Bio Co (GBIO), owning a total of 6.9 million shares. Combined, the top 29 institutional holders of GBIO own 80.96% of the company with a total of 53.5 million shares.

In the latest ownership report on December 31st 2023, the top 29 institutional holders increased their combined ownership of GBIO by 3.4 million shares. 12 institutions bought 7,284,547 total additional shares and increased their ownership by an average of 806.14%. However 4 institutions sold 3,872,543 total shares and decreased their ownership by an average of 14.86%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Generation Bio Co increased by a net total of 3,412,004 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
T. Rowe Price Associates, Inc.10.419%-7.090%6,926,174-528,5292023-12-31
FMR Inc8.052%-36.529%5,352,399-3,080,3742023-12-31
Bellevue Group AG5.441%0.000%3,617,08002023-12-31
BlackRock Inc4.766%-5.526%3,168,415-185,3212023-12-31
Artal Group S A4.233%0.000%2,814,19102023-12-31
Vanguard Group Inc3.839%9.127%2,552,251213,4672023-12-31
Bank of America Corp3.803%398.079%2,527,8622,020,3402023-12-31
Goldman Sachs Group Inc3.488%235.860%2,319,0121,628,5432023-12-31
EcoR1 Capital, LLC3.079%0.000%2,046,86702023-12-31
Deutsche Bank AG1.854%6,318.310%1,232,3161,213,1162023-12-31
Geode Capital Management, LLC1.622%6.542%1,077,96366,1932023-12-31
Morgan Stanley - Brokerage Accounts1.601%111.556%1,064,064561,0942023-12-31
State Street Corporation1.387%0.902%921,9878,2372023-12-31
UBS Group AG1.305%118.155%867,399469,7932023-12-31
Millennium Management LLC1.132%2,354.260%752,745722,0742023-12-31
Renaissance Technologies Corp1.037%118.996%689,400374,6002023-12-31
Dimensional Fund Advisors, Inc.1.028%-10.286%683,100-78,3192023-12-31
Charles Schwab Investment Management Inc0.574%1.292%381,4804,8672023-12-31
Northern Trust Corp0.561%0.599%373,0852,2232023-12-31

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
T. Rowe Price Associates, Inc.10.419%-7.090%6,926,174-528,5292023-12-31
FMR Inc8.052%-36.529%5,352,399-3,080,3742023-12-31
Bellevue Group AG5.441%0.000%3,617,08002023-12-31
T. Rowe Price Investment Management,Inc.5.314%0.000%3,511,45602023-09-30
BlackRock Inc4.766%-5.526%3,168,415-185,3212023-12-31
Artal Group S A4.233%0.000%2,814,19102023-12-31
Vanguard Group Inc3.839%9.127%2,552,251213,4672023-12-31
Bank of America Corp3.803%398.079%2,527,8622,020,3402023-12-31
Partner Fund Management LP3.782%-3.195%2,514,443-82,9932023-09-30
Goldman Sachs Group Inc3.488%235.860%2,319,0121,628,5432023-12-31
EcoR1 Capital, LLC3.079%0.000%2,046,86702023-12-31
Yiheng Capital LLC2.522%4.022%1,666,18164,4152023-09-30
Bvf Inc2.619%-44.486%1,556,032-1,246,9182022-06-30
JPMorgan Chase & Co2.135%56.487%1,410,446509,1292023-09-30
Farallon Capital Management, L.L.C.1.902%-50.025%1,249,382-1,250,6182022-12-31
Deutsche Bank AG1.854%6,318.310%1,232,3161,213,1162023-12-31
Geode Capital Management, LLC1.622%6.542%1,077,96366,1932023-12-31
Morgan Stanley - Brokerage Accounts1.601%111.556%1,064,064561,0942023-12-31
Great Point Partners LLC1.548%0.000%1,022,53702023-09-30
State Street Corporation1.387%0.902%921,9878,2372023-12-31
UBS Group AG1.305%118.155%867,399469,7932023-12-31
Millennium Management LLC1.132%2,354.260%752,745722,0742023-12-31
Renaissance Technologies Corp1.037%118.996%689,400374,6002023-12-31
Dimensional Fund Advisors, Inc.1.028%-10.286%683,100-78,3192023-12-31
Harvard Management Co Inc0.774%0.000%510,35402023-06-30
TD Asset Management Inc0.615%72.101%406,598170,3432023-09-30
Charles Schwab Investment Management Inc0.574%1.292%381,4804,8672023-12-31
Northern Trust Corp0.561%0.599%373,0852,2232023-12-31
Nuveen Asset Management, LLC0.527%80.825%312,877139,8492022-06-30

Mutual Fund Ownership

US Small-Cap Growth II Equity Comp is the biggest individual fund holder of Generation Bio Co (GBIO), owning a total of 4 million shares. Combined, the top 40 mutual fund holders of GBIO own 62.38% of the company with a total of 41.4 million shares.

In the latest ownership report on March 28th 2024, the top 40 fund holders increased their combined ownership of GBIO by 267 shares. 1 funds bought 537 total additional shares and increased their ownership by an average of 0.05%. However 1 funds sold 270 total shares and decreased their ownership by an average of 0.06%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Generation Bio Co increased by a net total of 267 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
iShares Russell 2000 ETF1.677%0.048%1,114,8605372024-03-28
iShares Russell 2000 Value ETF0.641%-0.063%426,417-2702024-03-28

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
US Small-Cap Growth II Equity Comp6.078%-0.319%4,040,381-12,9172023-12-31
T. Rowe Price New Horizons6.078%-0.319%4,040,381-12,9172023-12-31
BB Biotech AG Ord5.428%0.000%3,608,28002023-09-30
Fidelity Growth Compy Commingled Pl 33.833%0.000%2,527,15002023-07-31
Fidelity Growth Compy Commingled Pl O2.908%0.000%1,933,04102024-02-29
Fidelity® Growth Company2.836%-7.650%1,873,691-155,2002023-11-30
Fidelity Growth Company Fund2.785%0.000%1,851,17602024-02-29
Vanguard Total Stock Mkt Idx Inv2.339%0.000%1,555,02502024-02-29
Vanguard Instl Ttl Stck Mkt Idx Tr2.057%0.000%1,356,02502023-03-31
T. Rowe Price Health Sciences1.990%-2.036%1,323,015-27,4912023-12-31
Xtrackers S&P 500 Swap ETF 1C1.854%0.000%1,232,31602024-02-29
iShares Russell 2000 ETF1.677%0.048%1,114,8605372024-03-28
T. Rowe Price US Small-Cap Core Equity1.549%-0.146%1,023,728-1,5002023-09-30
T. Rowe Price Small-Cap Stock1.549%-0.146%1,023,728-1,5002023-09-30
T. Rowe Price Small-Cap Value1.206%-0.213%796,708-1,7002023-09-30
Fidelity Blue Chip Growth1.175%0.000%776,64702023-11-30
Fidelity® Blue Chip Growth1.175%0.000%776,64702023-11-30
Vanguard Institutional Extnd Mkt Idx Tr1.080%0.000%718,07602024-02-29
Fidelity Select Pharmaceuticals Port1.076%0.000%715,27602024-02-29
Select Pharmaceuticals Port1.083%81.461%715,276321,1002023-11-30
Vanguard Extended Market Index Investor1.063%1.448%700,50010,0002023-08-31
T. Rowe Price New Horizons Tr-Z0.966%2.052%642,42712,9172023-12-31
JPMorgan Small Cap Value I0.867%9.786%571,60050,9512023-09-30
T. Rowe Price Instl Small-Cap Stock0.825%0.000%545,08602023-09-30
Fidelity® Growth Company K60.804%-18.054%531,333-117,0592023-11-30
Fidelity Growth Company K60.757%0.000%503,19502024-02-29
T. Rowe Price U.S. SC Core Eq Tr-Z0.724%0.315%478,1361,5002023-09-30
Fidelity Small Cap Index0.696%1.576%462,6567,1782024-01-31
Fidelity® Select Health Care0.669%-13.432%440,936-68,4172023-09-30
Fidelity® Series Growth Company0.648%-9.053%427,960-42,6002023-10-31
iShares Russell 2000 Value ETF0.641%-0.063%426,417-2702024-03-28
T. Rowe Price Integrated US Sm Gr Eq0.640%0.000%422,60002023-09-30
TRP Integrated US Small-Cap Gr Eq0.640%0.000%422,60002023-09-30
Fidelity Series Growth Company0.495%0.000%329,16002024-02-29
Fidelity Extended Market Index0.409%-0.482%272,018-1,3182024-02-29
State St Russell Sm/Mid Cp® Indx NL Cl C0.378%2.779%251,5176,8002024-02-29
Bridgeway Ultra-Small Company0.366%0.000%243,000243,0002023-12-31
JPM Thematics Genetic Thrps C2 Acc USD0.358%-1.991%237,852-4,8312024-02-29
Schwab US Small-Cap ETF™0.341%0.000%226,65102024-02-29
DFA US Targeted Value I0.336%0.000%221,97402023-12-31

Discussions

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breakthisgrip11/12/23 09:52am

$GBIO Markets about as efficient as a retirement home

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Modok6/14/23 10:40am

$GBIO volume is almost nonexistent

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