Generation Bio Co. GBIO
Institutional shares held
4.32 Million
0
calls
0
puts
Total value of holdings
$23.4M
$0
calls
$0
puts
Market Cap
$320M
59,011,200
Shares Out.
Institutional ownership
7.32%
# of Institutions
11
We take great care to ensure that the data presented and summarized in this overview for Generation Bio Co. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding GBIO
View all-
Black Rock Inc. New York, NY3.29MShares$17.9 Million0.0% of portfolio
-
Atlas Venture Life Science Advisors, LLC828KShares$4.49 Million1.14% of portfolio
-
Nuveen Asset Management, LLC Chicago, IL169KShares$917,4160.0% of portfolio
-
Advisor Group Holdings, Inc. Phoenix, AZ15.5KShares$83,7870.0% of portfolio
-
Palo Alto Investors LP Palo Alto, CA15KShares$81,5540.02% of portfolio
-
Wipfli Financial Advisors Llc,148Shares$8020.0% of portfolio
-
Accent Capital Management, LLC Dayton, OH38Shares$2050.01% of portfolio
-
Cwm, LLC4Shares$210.0% of portfolio
-
First Horizon Advisors, Inc.2Shares$100.0% of portfolio
-
Huntington National Bank Columbus, OH1Shares$50.0% of portfolio
Latest Institutional Activity in GBIO
Top Purchases
Top Sells
About GBIO
Generation Bio Co., a genetic medicines company, develops therapies for the treatment of rare and prevalent diseases. The company provides a portfolio of programs, including programs for rare and prevalent diseases of the liver and retina. It also focuses on the diseases of skeletal muscle, central nervous system, and oncology. 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.
Insider Transactions at GBIO
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Oct 31
2025
|
Geoff Mcdonough |
SELL
Payment of exercise price or tax liability
|
Direct |
293
-0.21%
|
$1,465
$5.51 P/Share
|
|
Oct 31
2025
|
Geoff Mcdonough |
BUY
Exercise of conversion of derivative security
|
Direct |
659
+0.48%
|
-
|
|
Oct 15
2025
|
Kevin John Conway Chief Financial Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
18
-0.95%
|
$108
$6.71 P/Share
|
|
Oct 15
2025
|
Kevin John Conway Chief Financial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
58
+2.99%
|
-
|
|
Oct 15
2025
|
Antoinette Paone CHIEF OPERATING OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
47
-1.27%
|
$282
$6.71 P/Share
|
|
Oct 15
2025
|
Antoinette Paone CHIEF OPERATING OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
159
+4.11%
|
-
|
|
Oct 15
2025
|
Yalonda Howze CHIEF LEGAL OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
99
-4.05%
|
$594
$6.71 P/Share
|
|
Oct 15
2025
|
Yalonda Howze CHIEF LEGAL OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
334
+12.02%
|
-
|
|
Oct 15
2025
|
Geoff Mcdonough |
SELL
Payment of exercise price or tax liability
|
Direct |
155
-0.11%
|
$930
$6.71 P/Share
|
|
Oct 15
2025
|
Geoff Mcdonough |
BUY
Exercise of conversion of derivative security
|
Direct |
527
+0.38%
|
-
|
|
Oct 15
2025
|
Phillip Samayoa CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
34
-0.24%
|
$204
$6.71 P/Share
|
|
Oct 15
2025
|
Phillip Samayoa CHIEF SCIENTIFIC OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
114
+0.8%
|
-
|
|
Jul 15
2025
|
Geoff Mcdonough |
SELL
Payment of exercise price or tax liability
|
Direct |
1,548
-0.11%
|
$0
$0.43 P/Share
|
|
Jul 15
2025
|
Geoff Mcdonough |
BUY
Exercise of conversion of derivative security
|
Direct |
5,273
+0.38%
|
-
|
|
Jul 15
2025
|
Phillip Samayoa CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
337
-0.24%
|
$0
$0.43 P/Share
|
|
Jul 15
2025
|
Phillip Samayoa CHIEF SCIENTIFIC OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
1,147
+0.81%
|
-
|
|
Jul 15
2025
|
Antoinette Paone CHIEF OPERATING OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
468
-1.3%
|
$0
$0.43 P/Share
|
|
Jul 15
2025
|
Antoinette Paone CHIEF OPERATING OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
1,592
+4.24%
|
-
|
|
Jul 15
2025
|
Kevin John Conway Chief Financial Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
173
-0.94%
|
$0
$0.43 P/Share
|
|
Jul 15
2025
|
Kevin John Conway Chief Financial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
587
+3.08%
|
-
|
Last 12 Months Summary
Buy / Acquisition
248K
Shares
From
6
Insiders
| Exercise of conversion of derivative security | 37.7K shares |
|---|---|
| Open market or private purchase | 211K shares |
Sell / Disposition
11.8K
Shares
From
5
Insiders
| Payment of exercise price or tax liability | 11.8K shares |
|---|