GBIO Insider Trading

Insider Ownership Percentage: 20.80%
Insider Buying (Last 12 Months): $19,159.34
Insider Selling (Last 12 Months): $49,239.96

Generation Bio Insider Trading History Chart

This chart shows the insider buying and selling history at Generation Bio by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Generation Bio Share Price & Price History

Current Price: $4.07
Price Change: Price Increase of +0.37 (10.00%)
As of 03/28/2024 01:00 AM ET

This chart shows the closing price history over time for GBIO up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Generation Bio Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/2/2024Antoinette PaoneCOOSell2,445$1.62$3,960.905,828View SEC Filing Icon  
12/8/2023Dannielle AppelhansDirectorBuy637$1.82$1,159.3412,637View SEC Filing Icon  
12/4/2023Dannielle AppelhansDirectorBuy12,000$1.50$18,000.0012,000View SEC Filing Icon  
8/23/2023Antoinette PaoneCOOSell3,116$4.93$15,361.882,914View SEC Filing Icon  
7/3/2023Phillip SamayoaInsiderSell3,116$5.29$16,483.64101,428View SEC Filing Icon  
4/25/2023Antoinette PaoneCOOSell2,914$4.61$13,433.54View SEC Filing Icon  
1/26/2023Antoinette PaoneCOOSell2,695$5.56$14,984.20View SEC Filing Icon  
1/9/2023Phillip SamayoaInsiderSell1,865$5.11$9,530.1595,819View SEC Filing Icon  
10/27/2022Antoinette PaoneCOOSell2,914$5.03$14,657.42View SEC Filing Icon  
9/29/2022Antoinette PaoneCOOSell2,828$5.24$14,818.72View SEC Filing Icon  
9/19/2022Charles A Rowland JrDirectorBuy15,750$5.26$82,845.00191,797View SEC Filing Icon  
9/15/2022Antoinette PaoneCOOSell4,610$5.32$24,525.202,828View SEC Filing Icon  
9/15/2022Charles A Rowland JrDirectorBuy17,147$5.41$92,765.27142,566View SEC Filing Icon  
9/13/2022Charles A Rowland JrDirectorBuy18,784$5.20$97,676.80119,819View SEC Filing Icon  
3/9/2022Donald William NicholsonDirectorBuy2,293$4.79$10,983.47View SEC Filing Icon  
9/29/2021Jason P. RhodesDirectorSell16,586$24.59$407,849.74View SEC Filing Icon  
9/29/2021Venture Associates X L AtlasMajor ShareholderSell16,556$24.59$407,112.04View SEC Filing Icon  
9/27/2021Jason P. RhodesDirectorSell51,389$25.70$1,320,697.30View SEC Filing Icon  
9/27/2021Venture Associates X L AtlasMajor ShareholderSell51,294$25.70$1,318,255.80View SEC Filing Icon  
9/24/2021Jason P. RhodesDirectorSell28,916$25.84$747,189.44View SEC Filing Icon  
9/24/2021Venture Associates X L AtlasMajor ShareholderSell28,862$25.84$745,794.08View SEC Filing Icon  
9/22/2021Jason P. RhodesDirectorSell30,617$25.89$792,674.13View SEC Filing Icon  
9/22/2021Venture Associates X L AtlasMajor ShareholderSell30,560$25.89$791,198.40View SEC Filing Icon  
8/23/2021Matthew StantonInsiderSell1,500$25.04$37,560.00View SEC Filing Icon  
8/10/2021Matthew StantonInsiderSell1,500$22.63$33,945.00View SEC Filing Icon  
7/12/2021Matthew StantonInsiderSell3,000$25.03$75,090.00View SEC Filing Icon  
7/8/2021Douglas KerrInsiderSell3,518$25.20$88,653.60330,076View SEC Filing Icon  
6/23/2021Jason P. RhodesDirectorSell62,609$25.36$1,587,764.24View SEC Filing Icon  
6/23/2021Venture Associates X L AtlasMajor ShareholderSell62,493$25.36$1,584,822.48View SEC Filing Icon  
6/21/2021Jason P. RhodesDirectorSell63,892$24.84$1,587,077.28View SEC Filing Icon  
6/21/2021Venture Associates X L AtlasMajor ShareholderSell63,774$24.84$1,584,146.16View SEC Filing Icon  
6/15/2021Matthew StantonInsiderSell1,500$28.08$42,120.00199,654View SEC Filing Icon  
6/10/2021Matthew StantonInsiderSell6,000$27.23$163,380.00204,154View SEC Filing Icon  
5/27/2021Matthew StantonInsiderSell1,500$34.05$51,075.00199,654View SEC Filing Icon  
5/11/2021Matthew StantonInsiderSell400$31.05$12,420.00206,754View SEC Filing Icon  
4/23/2021Geoff McDonoughCEOSell10,000$35.10$351,000.001,184,080View SEC Filing Icon  
4/22/2021Matthew StantonInsiderSell3,000$32.55$97,650.00
4/16/2021Matthew StantonInsiderSell1,500$28.03$42,045.00199,654View SEC Filing Icon  
4/14/2021Jason P. RhodesDirectorSell23,413$26.61$623,019.93View SEC Filing Icon  
4/13/2021Venture Associates X L AtlasMajor ShareholderSell43,145$25.16$1,085,528.20View SEC Filing Icon  
4/12/2021Jason P. RhodesDirectorSell74,124$26.15$1,938,342.60View SEC Filing Icon  
4/12/2021Matthew StantonInsiderSell6,000$26.24$157,440.00204,154View SEC Filing Icon  
4/9/2021Venture Associates X L AtlasMajor ShareholderSell43,681$27.61$1,206,032.41View SEC Filing Icon  
4/8/2021Jason P. RhodesDirectorSell43,550$28.50$1,241,175.00View SEC Filing Icon  
4/7/2021Venture Associates X L AtlasMajor ShareholderSell39,864$28.51$1,136,522.64View SEC Filing Icon  
4/5/2021Douglas KerrInsiderSell14,072$30.09$423,426.48340,630View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Generation Bio (NASDAQ:GBIO)

95.22% of Generation Bio stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at GBIO by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Generation Bio Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/11/2024Vanguard Group Inc.2,552,251$4.21M0.0%+9.1%3.839%Search for SEC Filing on Google Icon
3/1/2024Goldman Sachs Group Inc.1,159,506$1.91M0.0%+67.9%1.755%Search for SEC Filing on Google Icon
2/16/2024Price T Rowe Associates Inc. MD6,926,174$11.43M0.0%-7.1%10.481%Search for SEC Filing on Google Icon
2/16/2024GSA Capital Partners LLP130,070$0.22M0.0%+207.4%0.197%Search for SEC Filing on Google Icon
2/15/2024Barclays PLC67,861$0.11M0.0%+399.2%0.103%Search for SEC Filing on Google Icon
2/15/2024Vanguard Group Inc.2,552,251$4.21M0.0%+9.1%3.862%Search for SEC Filing on Google Icon
2/15/2024PFM Health Sciences LP1,622,487$2.68M0.2%-35.5%2.455%Search for SEC Filing on Google Icon
2/15/2024Price T Rowe Associates Inc. MD6,926,174$11.43M0.0%-7.1%10.482%Search for SEC Filing on Google Icon
2/15/2024Bridgeway Capital Management LLC243,000$0.40M0.0%N/A0.368%Search for SEC Filing on Google Icon
2/13/2024Envestnet Asset Management Inc.17,917$30K0.0%N/A0.027%Search for SEC Filing on Google Icon
2/13/2024Goldman Sachs Group Inc.1,159,506$1.91M0.0%+67.9%1.755%Search for SEC Filing on Google Icon
2/13/2024The Manufacturers Life Insurance Company 144,319$0.24M0.0%-5.2%0.218%Search for SEC Filing on Google Icon
2/12/2024Weiss Asset Management LP81,630$0.14M0.0%N/A0.124%Search for SEC Filing on Google Icon
2/12/2024TD Asset Management Inc340,686$0.56M0.0%-16.2%0.516%Search for SEC Filing on Google Icon
2/9/2024UBS Group AG867,399$1.43M0.0%+118.2%1.313%Search for SEC Filing on Google Icon
2/8/2024Panagora Asset Management Inc.29,638$49K0.0%N/A0.045%Search for SEC Filing on Google Icon
2/7/2024Dimensional Fund Advisors LP683,100$1.13M0.0%-10.3%1.034%Search for SEC Filing on Google Icon
2/6/2024Los Angeles Capital Management LLC275,834$0.46M0.0%+315.6%0.417%Search for SEC Filing on Google Icon
2/5/2024Kestra Private Wealth Services LLC30,500$50K0.0%N/A0.046%Search for SEC Filing on Google Icon
1/12/2024SG Americas Securities LLC48,470$80K0.0%+260.9%0.073%Search for SEC Filing on Google Icon
12/18/2023Vanguard Group Inc.2,338,784$8.86M0.0%+3.5%3.539%Search for SEC Filing on Google Icon
12/1/2023Wellington Management Group LLP176,165$0.67M0.0%+214.7%0.267%Search for SEC Filing on Google Icon
11/30/2023American Century Companies Inc.30,889$0.12M0.0%+73.7%0.047%Search for SEC Filing on Google Icon
11/15/2023GSA Capital Partners LLP42,319$0.16M0.0%N/A0.064%Search for SEC Filing on Google Icon
11/13/2023FMR LLC8,432,773$31.96M0.0%-2.2%12.790%Search for SEC Filing on Google Icon
10/27/2023TD Asset Management Inc406,598$1.54M0.0%+72.1%0.617%Search for SEC Filing on Google Icon
10/13/2023SG Americas Securities LLC13,430$51K0.0%N/A0.020%Search for SEC Filing on Google Icon
9/21/2023Barclays PLC17,395$95K0.0%-42.4%0.026%Search for SEC Filing on Google Icon
8/21/2023California State Teachers Retirement System15,064$83K0.0%-15.7%0.023%Search for SEC Filing on Google Icon
8/21/2023Osaic Holdings Inc.4,645$26K0.0%N/A0.007%Search for SEC Filing on Google Icon
8/16/2023Nuveen Asset Management LLC272,324$1.50M0.0%-3.0%0.413%Search for SEC Filing on Google Icon
8/15/2023Alliancebernstein L.P.69,816$0.38M0.0%+25.1%0.106%Search for SEC Filing on Google Icon
8/15/2023Wells Fargo & Company MN19,404$0.11M0.0%+82.2%0.029%Search for SEC Filing on Google Icon
8/15/2023XTX Topco Ltd16,836$93K0.0%N/A0.026%Search for SEC Filing on Google Icon
8/15/2023Goldman Sachs Group Inc.720,954$3.97M0.0%+4.6%1.094%Search for SEC Filing on Google Icon
8/14/2023PDT Partners LLC22,187$0.12M0.0%-27.7%0.034%Search for SEC Filing on Google Icon
8/14/2023State of Wisconsin Investment Board118,000$0.65M0.0%+36.3%0.179%Search for SEC Filing on Google Icon
8/14/2023State Street Corp908,713$5M0.0%+1.3%1.378%Search for SEC Filing on Google Icon
8/14/2023Nuveen Asset Management LLC272,324$1.50M0.0%-3.0%0.413%Search for SEC Filing on Google Icon
8/11/2023Renaissance Technologies LLC308,100$1.70M0.0%+7.4%0.467%Search for SEC Filing on Google Icon
8/11/2023BlackRock Inc.3,536,962$19.45M0.0%+2.6%5.365%Search for SEC Filing on Google Icon
8/11/2023SVB Financial Group27,882$0.15M0.3%-31.0%0.042%Search for SEC Filing on Google Icon
8/11/2023Sectoral Asset Management Inc.356,740$1.96M0.3%-7.4%0.541%Search for SEC Filing on Google Icon
8/11/2023State Board of Administration of Florida Retirement System12,860$71K0.0%N/A0.020%Search for SEC Filing on Google Icon
8/11/2023Geode Capital Management LLC1,004,698$5.53M0.0%+7.6%1.524%Search for SEC Filing on Google Icon
8/11/2023JPMorgan Chase & Co.901,317$4.96M0.0%+94.3%1.367%Search for SEC Filing on Google Icon
8/11/2023Northern Trust Corp374,286$2.06M0.0%-2.8%0.568%Search for SEC Filing on Google Icon
8/10/2023MetLife Investment Management LLC24,031$0.13M0.0%+51.6%0.036%Search for SEC Filing on Google Icon
8/10/2023Osaic Holdings Inc.4,645$26K0.0%N/A0.007%Search for SEC Filing on Google Icon
8/10/2023ProShare Advisors LLC10,139$56K0.0%N/A0.015%Search for SEC Filing on Google Icon
8/10/2023Charles Schwab Investment Management Inc.383,524$2.11M0.0%+15.0%0.582%Search for SEC Filing on Google Icon
8/10/2023Citigroup Inc.14,599$80K0.0%+2,050.1%0.022%Search for SEC Filing on Google Icon
8/9/2023Dimensional Fund Advisors LP644,500$3.54M0.0%+18.3%0.978%Search for SEC Filing on Google Icon
8/9/2023TD Asset Management Inc236,255$1.30M0.0%+2.1%0.358%Search for SEC Filing on Google Icon
8/3/2023Barclays PLC17,395$95K0.0%-42.4%0.026%Search for SEC Filing on Google Icon
8/3/2023Innovis Asset Management LLC10,022$55K0.0%-49.6%0.015%Search for SEC Filing on Google Icon
8/3/2023Bank of New York Mellon Corp166,401$0.92M0.0%+3.1%0.253%Search for SEC Filing on Google Icon
7/24/2023Vontobel Holding Ltd.356,740$1.96M0.0%-7.4%0.543%Search for SEC Filing on Google Icon
5/18/2023JPMorgan Chase & Co.463,854$1.99M0.0%+0.6%0.706%Search for SEC Filing on Google Icon
5/16/2023Jane Street Group LLC23,540$0.10M0.0%N/A0.036%Search for SEC Filing on Google Icon
5/16/2023State Street Corp896,746$3.86M0.0%-3.0%1.365%Search for SEC Filing on Google Icon
5/16/2023Geode Capital Management LLC933,757$4.02M0.0%+7.5%1.565%Search for SEC Filing on Google Icon
5/15/2023Cubist Systematic Strategies LLC13,515$58K0.0%N/A0.023%Search for SEC Filing on Google Icon
5/15/2023EcoR1 Capital LLC1,956,579$8.41M0.3%N/A3.279%Search for SEC Filing on Google Icon
5/15/2023Deutsche Bank AG29,177$0.13M0.0%-80.6%0.049%Search for SEC Filing on Google Icon
5/15/2023Ensign Peak Advisors Inc30,640$0.13M0.0%+101.0%0.051%Search for SEC Filing on Google Icon
5/15/2023Price T Rowe Associates Inc. MD7,644,195$32.87M0.0%+5.3%12.812%Search for SEC Filing on Google Icon
5/12/2023Renaissance Technologies LLC287,000$1.23M0.0%+13.9%0.481%Search for SEC Filing on Google Icon
5/12/2023BlackRock Inc.3,446,364$14.82M0.0%-7.1%5.776%Search for SEC Filing on Google Icon
5/12/2023Sectoral Asset Management Inc.385,070$1.66M0.3%+40.6%0.645%Search for SEC Filing on Google Icon
5/12/2023Bank of America Corp DE542,800$2.33M0.0%-37.3%0.910%Search for SEC Filing on Google Icon
5/12/2023UBS Group AG387,283$1.67M0.0%+2.1%0.649%Search for SEC Filing on Google Icon
5/12/2023Dimensional Fund Advisors LP544,835$2.34M0.0%+20.4%0.913%Search for SEC Filing on Google Icon
5/12/2023Charles Schwab Investment Management Inc.333,545$1.43M0.0%-3.7%0.559%Search for SEC Filing on Google Icon
5/11/2023FMR LLC8,949,863$38.48M0.0%+0.4%15.000%Search for SEC Filing on Google Icon
5/11/2023American Century Companies Inc.10,447$49K0.0%N/A0.018%Search for SEC Filing on Google Icon
5/9/2023Bank of New York Mellon Corp161,363$0.69M0.0%-1.6%0.270%Search for SEC Filing on Google Icon
5/9/2023California State Teachers Retirement System17,879$77K0.0%-69.0%0.030%Search for SEC Filing on Google Icon
5/9/2023Y Intercept Hong Kong Ltd10,836$47K0.0%N/A0.018%Search for SEC Filing on Google Icon
5/4/2023Barclays PLC30,186$0.13M0.0%+133.8%0.051%Search for SEC Filing on Google Icon
4/28/2023SG Americas Securities LLC12,699$55K0.0%-25.5%0.021%Search for SEC Filing on Google Icon
4/12/2023Vontobel Holding Ltd.385,070$1.66M0.0%+40.6%0.645%Search for SEC Filing on Google Icon
2/16/2023Alliancebernstein L.P.56,906$0.22M0.0%+7.4%0.096%Search for SEC Filing on Google Icon
2/15/2023Public Employees Retirement System of Ohio11,003$43K0.0%-18.5%0.019%Search for SEC Filing on Google Icon
2/15/2023State of Wisconsin Investment Board122,928$0.48M0.0%-5.2%0.207%Search for SEC Filing on Google Icon
2/15/2023SVB Financial Group52,920$0.21M0.6%N/A0.089%Search for SEC Filing on Google Icon
2/15/2023T. Rowe Price Investment Management Inc.3,577,755$14.06M0.0%+2.7%6.021%Search for SEC Filing on Google Icon
2/15/2023Millennium Management LLC25,918$0.10M0.0%+150.5%0.044%Search for SEC Filing on Google Icon
2/15/2023Morgan Stanley491,976$1.93M0.0%+1.0%0.828%Search for SEC Filing on Google Icon
2/14/2023PDT Partners LLC14,560$57K0.0%-64.1%0.025%Search for SEC Filing on Google Icon
2/14/2023Price T Rowe Associates Inc. MD7,261,046$28.54M0.0%-1.8%12.220%Search for SEC Filing on Google Icon
2/13/2023Charles Schwab Investment Management Inc.346,307$1.36M0.0%+1.7%0.583%Search for SEC Filing on Google Icon
2/13/2023Deutsche Bank AG150,284$0.59M0.0%+7.4%0.253%Search for SEC Filing on Google Icon
2/13/2023Panagora Asset Management Inc.58,613$0.23M0.0%N/A0.099%Search for SEC Filing on Google Icon
2/13/2023Barclays PLC12,913$51K0.0%+533.0%0.022%Search for SEC Filing on Google Icon
2/13/2023Renaissance Technologies LLC252,000$0.99M0.0%-13.2%0.424%Search for SEC Filing on Google Icon
2/13/2023Geode Capital Management LLC868,500$3.41M0.0%+1.6%1.462%Search for SEC Filing on Google Icon
2/13/2023GSA Capital Partners LLP86,154$0.34M0.0%+3.9%0.145%Search for SEC Filing on Google Icon
2/13/2023JPMorgan Chase & Co.461,140$1.81M0.0%+0.7%0.776%Search for SEC Filing on Google Icon
2/10/2023Bank of America Corp DE865,262$3.40M0.0%+42.7%1.456%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Generation Bio logo
Generation Bio Co. develops non-viral genetic medicines for the treatment of rare and prevalent diseases. The company develops cell-targeted lipid nanoparticle (ctLNP) platform, a modular delivery system for nucleic acids to avoid off-target clearance by the liver and spleen that enables ctLNPs to persist in systemic circulation, which allows for highly selective and potent ligand-driven targeting to specific tissues and cell types; and novel immune-quiet DNA (iqDNA) to enable long-lasting high levels of gene expression from non-integrating episomes and avoids innate immune sensors that have long prevented DNA from use in non-viral systems. It uses its platform for developing a portfolio of programs for treating cancer, autoimmune, hematologic disorders, prioritizing sickle cell, beta-thalassemia, and hemophilia A diseases, as well as for other tissues and cell types, including retina, skeletal muscle, and central nervous system. The company was formerly known as Torus Therapeutics, Inc. and changed its name to Generation Bio Co. in November 2017. Generation Bio Co. was incorporated in 2016 and is headquartered in Cambridge, Massachusetts.
Read More on Generation Bio

Today's Range

Now: $4.07
Low: $3.72
High: $4.29

50 Day Range

MA: $2.46
Low: $1.73
High: $4.07

52 Week Range

Now: $4.07
Low: $0.86
High: $6.98

Volume

441,905 shs

Average Volume

280,852 shs

Market Capitalization

$270.57 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.7

Who are the company insiders with the largest holdings of Generation Bio?

Generation Bio's top insider shareholders include:
  1. Charles A Rowland Jr (Director)
  2. Phillip Samayoa (Insider)
  3. Dannielle Appelhans (Director)
  4. Antoinette Paone (COO)
Learn More about top insider investors at Generation Bio.

Who are the major institutional investors of Generation Bio?

Generation Bio's top institutional investors include:
  1. Price T Rowe Associates Inc. MD — 10.48%
  2. Price T Rowe Associates Inc. MD — 10.48%
  3. Vanguard Group Inc. — 3.86%
  4. Vanguard Group Inc. — 3.84%
  5. PFM Health Sciences LP — 2.46%
  6. Goldman Sachs Group Inc. — 1.75%
Learn More about top institutional investors of Generation Bio stock.

Which institutional investors are selling Generation Bio stock?

In the previous quarter, GBIO stock was sold by these institutional investors:
  1. PFM Health Sciences LP
  2. Price T Rowe Associates Inc. MD
  3. Price T Rowe Associates Inc. MD
  4. Dimensional Fund Advisors LP
  5. TD Asset Management Inc
  6. The Manufacturers Life Insurance Company
Within the last year, company insiders that have sold Generation Bio company stock include:
  1. Charles A Rowland Jr (Director)
  2. Phillip Samayoa (Insider)
Learn More investors selling Generation Bio stock.

Which institutional investors are buying Generation Bio stock?

In the last quarter, GBIO stock was purchased by institutional investors including:
  1. UBS Group AG
  2. Goldman Sachs Group Inc.
  3. Goldman Sachs Group Inc.
  4. Bridgeway Capital Management LLC
  5. Vanguard Group Inc.
  6. Vanguard Group Inc.
  7. Los Angeles Capital Management LLC
  8. GSA Capital Partners LLP
During the last year, these company insiders have bought Generation Bio stock:
  1. Charles A Rowland Jr (Director)
  2. Phillip Samayoa (Insider)
Learn More investors buying Generation Bio stock.