Generation Bio Ownership | Who Owns Generation Bio?
Generation Bio Ownership Summary
Generation Bio is owned by 61.66% institutional investors, 14.24% insiders, and 24.11% retail investors. Price t rowe associates inc /md/ is the largest institutional shareholder, holding 13.90% of GBIO shares. T. Rowe Price New Horizons is the top mutual fund, with 7.09% of its assets in Generation Bio shares.
GBIO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Generation Bio | 61.66% | 14.24% | 24.11% |
| Sector | Healthcare Stocks | 488.17% | 11.08% | -399.26% |
| Industry | Biotech Stocks | 306.59% | 11.10% | -217.69% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Price t rowe associates inc /md/ | 9.28M | 13.90% | $9.84M |
| Atlas venture life science advisors | 8.28M | 12.35% | $2.65M |
| Fmr | 4.63M | 6.93% | $4.90M |
| Blackrock | 3.29M | 4.96% | $9.29M |
| Bank of america corp /de/ | 2.98M | 4.49% | $8.41M |
| Siren | 2.97M | 4.43% | $950.35K |
| Artal group | 2.83M | 4.26% | $7.98M |
| Vanguard group | 2.64M | 3.96% | $2.80M |
| Baker bros. advisors lp | 1.94M | 2.90% | $622.58K |
| Acadian asset management | 1.23M | 1.84% | $393.00K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Atlas venture life science advisors | 8.28M | 0.40% | $2.65M |
| Artal group | 2.83M | 0.20% | $7.98M |
| Militia capital partners, lp | 542.35K | 0.08% | $173.60K |
| Siren | 2.97M | 0.05% | $950.35K |
| Yiheng capital management | 1.06M | 0.03% | $337.79K |
| Palo alto investors lp | 150.47K | 0.01% | $48.17K |
| Accent capital management | 38.00 | 0.01% | $20.11K |
| Baker bros. advisors lp | 1.94M | 0.01% | $622.58K |
| Abel hall | 23.57K | 0.00% | $7.54K |
| Point72 asia (singapore) pte. | 34.97K | 0.00% | $11.19K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Yiheng capital management | 1.06M | 0.03% | 863.74K |
| Militia capital partners, lp | 542.35K | 0.08% | 542.35K |
| Renaissance | 962.96K | 0.00% | 368.66K |
| Blackrock | 3.29M | 0.00% | 245.40K |
| Ubs group | 1.05M | 0.00% | 206.62K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bellevue group | - | - | -3.92M |
| Blackrock funding, inc. /de | 1.16M | - | -2.24M |
| Ecor1 capital | - | - | -2.05M |
| Pfm health sciences, lp | - | - | -787.91K |
| Fmr | 4.63M | 0.00% | -694.22K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Militia capital partners, lp | 542.35K | 0.08% | 542.35K | $173.60K |
| Y-intercept (hong kong) | 148.19K | 0.00% | 148.19K | $47.43K |
| Wellington management group llp | 119.36K | 0.00% | 119.36K | $336.58K |
| Callan family office | 69.73K | 0.00% | 69.73K | $22.32K |
| Squarepoint ops | 65.63K | 0.00% | 65.63K | $69.57K |
Sold Out
| Holder | Change |
|---|---|
| Nelson, van denburg & campbell wealth management group | -9.00 |
| Eversource wealth advisors | -27.00 |
| Srs capital advisors | -38.00 |
| Capital performance advisors llp | -45.00 |
| Gamma investing | -50.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 58 | -28.40% | 41,332,317 | 4.83% | 61 | 1.78% | 23 | -4.17% | 25 | -34.21% |
| Mar 31, 2025 | 82 | 1.23% | 47,707,211 | -11.41% | 71 | 1.09% | 24 | -38.46% | 38 | 100.00% |
| Dec 31, 2024 | 20 | -73.33% | 12,890,700 | -76.66% | 19 | 0.28% | 7 | -73.08% | 5 | -81.48% |
| Sep 30, 2024 | 75 | -3.85% | 55,236,045 | -0.45% | 82 | 1.19% | 26 | -36.59% | 27 | 17.39% |
| Jun 30, 2024 | 77 | - | 55,483,273 | 0.97% | 83 | 1.21% | 41 | 10.81% | 23 | -14.81% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| T. Rowe Price New Horizons | 4.76M | 7.09% | -23.66K |
| US Small-Cap Growth II Equity Comp | 4.76M | 7.09% | -509.39K |
| BB Biotech AG Ord | 3.92M | 5.87% | - |
| Fidelity Growth Compy Commingled Pl O | 1.94M | 2.91% | - |
| Vanguard US Total Market Shares ETF | 1.56M | 2.32% | - |
| Vanguard Total Stock Mkt Idx Inv | 152.41K | 2.26% | -3.33K |
| T. Rowe Price Health Sciences | 1.43M | 2.13% | -53.78K |
| T. Rowe Price New Horizons Tr-Z | 1.04M | 1.56% | 2.03K |
| Fidelity Growth Company Fund | 972.42K | 1.45% | -380.52K |
| Fidelity Growth Compy Commingled Pl S | 873.41K | 1.30% | -461.25K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jan 10, 2025 | Quinn Anthony G. | - | Buy | $120.76K |
| Jan 13, 2025 | Quinn Anthony G. | - | Buy | $82.45K |
| Jul 01, 2024 | Paone Antoinette | CHIEF OPERATING OFFICER | Sell | $18.41K |
| Jan 02, 2024 | Paone Antoinette | CHIEF OPERATING OFFICER | Sell | $3.96K |
| Jan 02, 2024 | Samayoa Phillip | CHIEF STRATEGY OFFICER | Sell | $3.96K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
| 2025 Q1 | 2 | - |
| 2024 Q4 | - | - |
| 2024 Q3 | - | 1 |
GBIO Ownership FAQ
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