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Generation Bio Co

GBIO
5.340USD
0.0000.00%
Close 03/27, 16:00ETQuotes delayed by 15 min
308.10MMarket Cap
LossP/E TTM

Generation Bio Co

5.340
0.0000.00%

More Details of Generation Bio Co Company

Generation Bio Co. is a biotechnology company. The Company is engaged in developing redosable therapeutics that reprogram T cells in vivo to reduce or eliminate the production and persistence of autoreactive T cells, which erroneously recognize and attack the body’s own tissues, causing autoimmune diseases. It focuses on autoimmune targets that have been undruggable or poorly drugged selectively in T cells. Its proprietary cell-targeted lipid nanoparticle (ctLNP) technology enables selective access to T cells and precise target inhibition by siRNA to selectively modulate T cells, blocking autoimmune tissue damage while sparing the broader immune system. Its proprietary stealth technology prevents its LNP from interacting with serum-binding proteins and reduces clearance by the liver and spleen to less than 1%, enabling potency and selectivity. Its selective delivery allows it to inhibit targets in T cells while sparing critical function in other cell types.

Generation Bio Co Info

Ticker SymbolGBIO
Company nameGeneration Bio Co
IPO dateJun 12, 2020
CEOHowze (Yalonda)
Number of employees115
Security typeOrdinary Share
Fiscal year-endJun 12
Address301 Binney Street
CityCAMBRIDGE
Stock exchangeNASDAQ OMX - NASDAQ BASIC
CountryUnited States of America
Postal code02142
Phone18575295908
Websitehttps://generationbio.com/
Ticker SymbolGBIO
IPO dateJun 12, 2020
CEOHowze (Yalonda)

Company Executives of Generation Bio Co

Name
Name/Position
Position
Shareholding
Change
Dr. Phillip Samayoa, Ph.D.
Dr. Phillip Samayoa, Ph.D.
Chief Scientific Officer
Chief Scientific Officer
13.01K
+0.61%
Dr. Anthony G. Quinn, M.D., Ph.D.
Dr. Anthony G. Quinn, M.D., Ph.D.
Independent Director
Independent Director
7.28K
-410.87%
Ms. Yalonda Howze, J.D.
Ms. Yalonda Howze, J.D.
Interim Chief Executive Officer, President
Interim Chief Executive Officer, President
4.59K
-56.26%
Ms. Dannielle Appelhans
Ms. Dannielle Appelhans
Independent Director
Independent Director
737.00
-171.37%
Mr. Kevin John Conway
Mr. Kevin John Conway
Chief Financial Officer, Treasurer
Chief Financial Officer, Treasurer
2.00
-95450.00%
Mr. Jason Rhodes
Mr. Jason Rhodes
Independent Director
Independent Director
--
--
Dr. Cameron Geoffrey (Geoff) Mcdonough, M.D.
Dr. Cameron Geoffrey (Geoff) Mcdonough, M.D.
Chairman of the Board
Chairman of the Board
--
--
Dr. Catherine Stehman-Breen, M.D.
Dr. Catherine Stehman-Breen, M.D.
Independent Director
Independent Director
--
-100.00%
Mr. Gustav A. Christensen
Mr. Gustav A. Christensen
Independent Director
Independent Director
--
-100.00%
Dr. Jeffrey M. (Jeff) Jonas, M.D.
Dr. Jeffrey M. (Jeff) Jonas, M.D.
Independent Director
Independent Director
--
--
View more
Name
Name/Position
Position
Shareholding
Change
Dr. Phillip Samayoa, Ph.D.
Dr. Phillip Samayoa, Ph.D.
Chief Scientific Officer
Chief Scientific Officer
13.01K
+0.61%
Dr. Anthony G. Quinn, M.D., Ph.D.
Dr. Anthony G. Quinn, M.D., Ph.D.
Independent Director
Independent Director
7.28K
-410.87%
Ms. Yalonda Howze, J.D.
Ms. Yalonda Howze, J.D.
Interim Chief Executive Officer, President
Interim Chief Executive Officer, President
4.59K
-56.26%
Ms. Dannielle Appelhans
Ms. Dannielle Appelhans
Independent Director
Independent Director
737.00
-171.37%
Mr. Kevin John Conway
Mr. Kevin John Conway
Chief Financial Officer, Treasurer
Chief Financial Officer, Treasurer
2.00
-95450.00%
Mr. Jason Rhodes
Mr. Jason Rhodes
Independent Director
Independent Director
--
--

Revenue Breakdown

FY2024
FY2023
Relevant data have not been disclosed by the company yet.
By RegionUSD
Name
Revenue
Proportion
United States
19.89M
0.00%
By Business
By Region
Relevant data have not been disclosed by the company yet.

Shareholding Stats

Updated: Mon, Feb 16
Updated: Mon, Feb 16
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
SymBiosis Capital Management, LLC
9.87%
Modernatx Inc
8.70%
T. Rowe Price Associates, Inc.
8.32%
Renaissance Technologies LLC
4.27%
The Vanguard Group, Inc.
3.41%
Other
65.44%
Shareholders
Shareholders
Proportion
SymBiosis Capital Management, LLC
9.87%
Modernatx Inc
8.70%
T. Rowe Price Associates, Inc.
8.32%
Renaissance Technologies LLC
4.27%
The Vanguard Group, Inc.
3.41%
Other
65.44%
Shareholder Types
Shareholders
Proportion
Investment Advisor
16.19%
Hedge Fund
14.12%
Venture Capital
11.80%
Corporation
8.70%
Investment Advisor/Hedge Fund
6.53%
Research Firm
5.04%
Individual Investor
1.60%
Other
36.04%

Institutional Shareholding

Updated: Mon, Dec 8
Updated: Mon, Dec 8
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2025Q4
167
4.19M
83.49%
--
2025Q3
183
4.19M
91.65%
-1.41K
2025Q2
190
4.19M
92.88%
-658.30K
2025Q1
195
4.85M
97.87%
-1.71M
2024Q4
218
5.46M
97.22%
-137.93K
2024Q3
232
5.60M
98.15%
-24.80K
2024Q2
237
5.63M
99.14%
+61.28K
2024Q1
240
5.57M
97.32%
-903.46K
2023Q4
246
5.31M
94.85%
-454.75K
2023Q3
245
5.76M
97.17%
-8.60K
View more

Shareholder Activity

Name
Shares Held
Proportion
Change
Chg %
Date
SymBiosis Capital Management, LLC
421.93K
6.26%
+421.93K
--
Sep 30, 2025
Modernatx Inc
585.94K
8.7%
--
--
Apr 07, 2025
T. Rowe Price Associates, Inc.
560.51K
8.32%
-269.47K
-32.47%
Sep 30, 2025
Renaissance Technologies LLC
344.26K
5.11%
+309.84K
+900.01%
Sep 30, 2025
The Vanguard Group, Inc.
229.83K
3.41%
-2.00
-0.00%
Sep 30, 2025
Invus Public Equities Advisors, LLC
296.89K
4.41%
-1.00
-0.00%
Sep 30, 2025
Baker Bros. Advisors LP
194.49K
2.89%
-2.00
-0.00%
Sep 30, 2025
UBS Financial Services, Inc.
148.72K
2.21%
+60.23K
+68.07%
Sep 30, 2025
Morgan Stanley & Co. LLC
164.24K
2.44%
+72.97K
+79.94%
Sep 30, 2025
Marshall Wace LLP
218.46K
3.24%
+206.84K
+1780.04%
Sep 30, 2025
View more

Related ETFs

Updated: Sat, Dec 6
Updated: Sat, Dec 6
Name
Proportion
Global X Russell 2000 Covered Call ETF
0%
Invesco RAFI US 1500 Small-Mid ETF
0%
Global X Russell 2000 ETF
0%
ProShares UltraPro Russell2000
0%
Avantis US Small Cap Equity ETF
0%
iShares Russell 3000 ETF
0%
Schwab U.S. Small-Cap ETF
0%
ProShares Hedge Replication ETF
0%
iShares Micro-Cap ETF
0%
iShares Russell 2000 ETF
0%
View more
Global X Russell 2000 Covered Call ETF
Proportion0%
Invesco RAFI US 1500 Small-Mid ETF
Proportion0%
Global X Russell 2000 ETF
Proportion0%
ProShares UltraPro Russell2000
Proportion0%
Avantis US Small Cap Equity ETF
Proportion0%
iShares Russell 3000 ETF
Proportion0%
Schwab U.S. Small-Cap ETF
Proportion0%
ProShares Hedge Replication ETF
Proportion0%
iShares Micro-Cap ETF
Proportion0%
iShares Russell 2000 ETF
Proportion0%

Dividend

A total of 0.00 USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
No Data

Stock Splits

Date
Ex-dividend Date
Type
Ratio
Jul 18, 2025
Merger
10→1
Date
Ex-dividend Date
Type
Ratio
Jul 18, 2025
Merger
10→1
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