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Generation Bio (GBIO) Institutional Ownership

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$0.39 -0.03 (-8.02%)
Closing price 06/11/2025 04:00 PM Eastern
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$0.40 +0.00 (+1.02%)
As of 06/11/2025 07:50 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Generation Bio (NASDAQ:GBIO)

Current
Institutional Ownership
Percentage
95.22%
Number of
Institutional Buyers
(last 12 months)
25
Total
Institutional Inflows
(last 12 months)
$9.00M
Number of
Institutional Sellers
(last 12 months)
17
Total
Institutional Outflows
(last 12 months)
$2.48M
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GBIO Institutional Buying and Selling by Quarter

Generation Bio Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/21/2025 Acadian Asset Management LLC1,159,135$468K0.0%+54.3%1.729%
5/16/2025 Goldman Sachs Group Inc.1,086,098$440K0.0%-10.1%1.620%
5/16/2025 Jacobs Levy Equity Management Inc.182,005$74K0.0%-41.6%0.272%
5/16/2025 AQR Capital Management LLC89,014$36K0.0%N/A0.133%
5/12/2025 Nuveen LLC169,265$69K0.0%N/A0.253%
5/9/2025 Deutsche Bank AG108,771$45K0.0%-40.9%0.162%
5/8/2025Jefferies Financial Group Inc.173,659$70K0.0%-92.3%0.259%
4/22/2025 EWA LLC92,901$38K0.0%N/A0.139%
3/7/2025 Aegis Wealth Management LLC88,890$94K0.1%N/A0.133%
2/27/2025Jefferies Financial Group Inc.2,261,817$2.40M0.0%N/A3.386%
2/17/2025 Squarepoint Ops LLC65,628$70K0.0%N/A0.098%
2/17/2025 Two Sigma Investments LP120,403$128K0.0%-19.7%0.180%
2/17/2025 Two Sigma Advisers LP194,400$206K0.0%-10.5%0.291%
2/17/2025 Millennium Management LLC91,578$97K0.0%N/A0.137%
2/17/2025 Jacobs Levy Equity Management Inc.311,535$330K0.0%+13.9%0.466%
2/17/2025Jefferies Financial Group Inc.2,261,817$2.40M0.0%N/A3.386%
2/17/2025 Deutsche Bank AG184,173$195K0.0%+688.7%0.276%
2/17/2025 D. E. Shaw & Co. Inc.344,922$366K0.0%-29.3%0.516%
2/17/2025 Bridgeway Capital Management LLC246,800$262K0.0%-23.8%0.370%
2/14/2025 The Manufacturers Life Insurance Company145,094$154K0.0%-11.5%0.217%
2/14/2025 Integrated Wealth Concepts LLC72,720$77K0.0%N/A0.109%
2/14/2025 Price T Rowe Associates Inc. MD9,279,059$9.84M0.0%-0.8%13.893%
2/14/2025 Dimensional Fund Advisors LP396,237$420K0.0%-10.2%0.593%
2/13/2025 Renaissance Technologies LLC962,959$1.02M0.0%+62.0%1.442%
2/12/2025 JPMorgan Chase & Co.297,705$316K0.0%+74.9%0.446%
2/11/2025 Intech Investment Management LLC23,337$25K0.0%N/A0.035%
2/6/2025 Charles Schwab Investment Management Inc.367,026$389K0.0%-13.3%0.550%
2/4/2025 Los Angeles Capital Management LLC245,927$261K0.0%-16.8%0.368%
11/19/2024 Barclays PLC76,430$189K0.0%+165.5%0.114%
11/15/2024 Barclays PLC76,430$189K0.0%+165.5%0.114%
11/15/2024 XTX Topco Ltd17,922$44K0.0%-86.5%0.027%
11/15/2024 Jane Street Group LLC34,783$86K0.0%-29.9%0.052%
11/15/2024 State Street Corp992,188$2.45M0.0%+1.2%1.486%
11/15/2024 Jacobs Levy Equity Management Inc.273,445$675K0.0%-9.2%0.409%
11/15/2024 Baker BROS. Advisors LP1,944,945$4.80M0.0%+61.1%2.912%
11/13/2024 FMR LLC5,320,266$13.14M0.0%+0.3%7.966%
11/12/2024 Charles Schwab Investment Management Inc.423,299$1.05M0.0%+2.1%0.634%
11/6/2024 Cornercap Investment Counsel Inc.28,995$72K0.0%-49.5%0.043%
11/4/2024 Los Angeles Capital Management LLC295,727$730K0.0%-13.5%0.443%
10/3/2024 SG Americas Securities LLC17,067$42K0.0%N/A0.026%
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9/16/2024 Cubist Systematic Strategies LLC19,046$54K0.0%+91.0%0.029%
8/15/2024 The Manufacturers Life Insurance Company164,573$464K0.0%+8.7%0.247%
8/14/2024 Cubist Systematic Strategies LLC19,046$54K0.0%+91.0%0.029%
8/12/2024 XTX Topco Ltd132,716$374K0.0%-20.2%0.199%
8/9/2024 Renaissance Technologies LLC636,400$1.80M0.0%-4.2%0.957%
8/9/2024 Dimensional Fund Advisors LP485,396$1.37M0.0%-3.7%0.730%
8/8/2024 Cornercap Investment Counsel Inc.57,424$162K0.0%-22.6%0.086%
8/8/2024 American Century Companies Inc.31,786$90K0.0%+199.3%0.048%
8/6/2024 Acadian Asset Management LLC594,569$1.68M0.0%+23.9%0.894%
8/6/2024 Los Angeles Capital Management LLC341,861$964K0.0%-10.4%0.514%
8/1/2024 Rhumbline Advisers78,903$222K0.0%+7.4%0.119%
7/26/2024 Bank of New York Mellon Corp186,756$527K0.0%+31.2%0.281%
5/17/2024 Artal Group S.A.2,830,591$11.52M0.3%+0.6%4.255%
5/16/2024 Jacobs Levy Equity Management Inc.32,352$132K0.0%-63.5%0.049%
5/15/2024 Baker BROS. Advisors LP371,219$1.51M0.0%N/A0.558%
5/15/2024 Yiheng Capital Management L.P.191,530$780K0.0%N/A0.288%
5/15/2024 Bellevue Group AG3,861,575$15.72M0.2%+6.8%5.808%
5/15/2024 Price T Rowe Associates Inc. MD8,878,361$36.14M0.0%+28.2%13.353%
5/10/2024 Acadian Asset Management LLC479,835$1.95M0.0%+113.9%0.722%
5/10/2024 Vanguard Group Inc.2,570,456$10.46M0.0%+0.7%3.866%
5/7/2024 PFG Advisors10,000$41K0.0%N/A0.015%
5/7/2024 SG Americas Securities LLC16,626$68K0.0%-65.7%0.025%
5/1/2024 Mirae Asset Global Investments Co. Ltd.18,259$74K0.0%N/A0.027%
4/5/2024 Los Angeles Capital Management LLC381,661$1.55M0.0%+38.4%0.574%
2/15/2024 PFM Health Sciences LP1,622,487$2.68M0.2%-35.5%2.455%
2/12/2024 Weiss Asset Management LP81,630$135K0.0%N/A0.124%
2/8/2024 Panagora Asset Management Inc.29,638$49K0.0%N/A0.045%
2/6/2024 Los Angeles Capital Management LLC275,834$455K0.0%+315.6%0.417%
2/5/2024 Kestra Private Wealth Services LLC30,500$50K0.0%N/A0.046%
1/12/2024 SG Americas Securities LLC48,470$80K0.0%+260.9%0.073%
11/13/2023 FMR LLC8,432,773$31.96M0.0%-2.2%12.790%
10/27/2023 TD Asset Management Inc406,598$1.54M0.0%+72.1%0.617%
10/13/2023 SG Americas Securities LLC13,430$51K0.0%N/A0.020%
9/21/2023 Barclays PLC17,395$95K0.0%-42.4%0.026%
8/11/2023 SVB Financial Group27,882$153K0.3%-31.0%0.042%
8/11/2023 Sectoral Asset Management Inc.356,740$1.96M0.3%-7.4%0.541%
8/9/2023 TD Asset Management Inc236,255$1.30M0.0%+2.1%0.358%
8/3/2023Innovis Asset Management LLC10,022$55K0.0%-49.6%0.015%
7/24/2023 Vontobel Holding Ltd.356,740$1.96M0.0%-7.4%0.543%
5/15/2023 EcoR1 Capital LLC1,956,579$8.41M0.3%N/A3.279%
5/12/2023 Sectoral Asset Management Inc.385,070$1.66M0.3%+40.6%0.645%
5/9/2023 Y Intercept Hong Kong Ltd10,836$47K0.0%N/A0.018%
4/28/2023 SG Americas Securities LLC12,699$55K0.0%-25.5%0.021%
4/12/2023 Vontobel Holding Ltd.385,070$1.66M0.0%+40.6%0.645%
2/13/2023 GSA Capital Partners LLP86,154$339K0.0%+3.9%0.145%
2/10/2023 Connor Clark & Lunn Investment Management Ltd.10,003$39K0.0%N/A0.017%
2/10/2023 Sectoral Asset Management Inc.273,787$1.08M0.2%N/A0.461%
2/10/2023Cheyne Capital Management UK LLP51,126$201K0.4%N/A0.086%
2/9/2023 Denali Advisors LLC10,600$42K0.0%+43.2%0.018%
2/8/2023 Swiss National Bank106,800$420K0.0%+6.1%0.180%
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2/2/2023 Nisa Investment Advisors LLC46,700$184K0.0%+29.0%0.079%
11/15/2022 PFM Health Sciences LP3,013,712$16.00M0.6%+8.7%5.072%
11/15/2022 Farallon Capital Management LLC2,500,000$13.28M0.1%-13.7%4.207%
11/15/2022 BVF Inc. IL361,824$1.92M0.1%-76.7%0.609%
11/14/2022 PDT Partners LLC40,607$216K0.0%-30.2%0.068%
11/10/2022 UBS Group AG371,942$1.98M0.0%+3,591.0%0.626%
11/9/2022 Massachusetts Financial Services Co. MA25,678$136K0.0%N/A0.044%
11/7/2022 Nisa Investment Advisors LLC36,200$191K0.0%-5.2%0.061%
11/7/2022 TD Asset Management Inc.231,461$1.18M0.0%+10.2%0.392%
11/7/2022 ProShare Advisors LLC10,251$54K0.0%N/A0.017%
(Data available from 1/1/2016 forward)

GBIO Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of GBIO shares?

During the previous two years, 51 institutional investors and hedge funds held shares of Generation Bio. The most heavily invested institutionals were Bellevue Group AG ($15.72M), FMR LLC ($13.14M), Artal Group S.A. ($11.52M), Vanguard Group Inc. ($10.46M), Price T Rowe Associates Inc. MD ($9.84M), Baker BROS. Advisors LP ($4.80M), and PFM Health Sciences LP ($2.68M).Learn more on GBIO's institutional investors.

What percentage of Generation Bio stock is owned by institutional investors?

95.22% of Generation Bio stock is owned by institutional investors. Learn more on GBIO's institutional investor holdings.

Which institutional investors have been buying Generation Bio stock?

Of the 37 institutional investors that purchased Generation Bio stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Jefferies Financial Group Inc. ($4.52M), Price T Rowe Associates Inc. MD ($1.95M), Baker BROS. Advisors LP ($1.11M), Acadian Asset Management LLC ($778.05K), Renaissance Technologies LLC ($368.66K), Los Angeles Capital Management LLC ($315.29K), and Bellevue Group AG ($244.50K).

How much institutional buying is happening at Generation Bio?

Institutional investors have bought a total of 11,181,634 shares in the last 24 months. This purchase volume represents approximately $23.32M in transactions.

Which Generation Bio major shareholders have been selling company stock?

Of the 25 institutional investors that sold Generation Bio stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Jefferies Financial Group Inc. ($2.09M), PFM Health Sciences LP ($891.96K), Jacobs Levy Equity Management Inc. ($213.32K), FMR LLC ($189.79K), XTX Topco Ltd ($148.29K), D. E. Shaw & Co. Inc. ($143.23K), and Los Angeles Capital Management LLC ($135.73K).

How much institutional selling is happening at Generation Bio?

Institutional investors have sold a total of 4,560,653 shares in the last 24 months. This volume of shares sold represents approximately $5.54M in transactions.


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This page (NASDAQ:GBIO) was last updated on 6/12/2025 by MarketBeat.com Staff
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