Rallybio Ownership | Who Owns Rallybio?
Rallybio Ownership Summary
Rallybio is owned by 63.08% institutional investors, 4.10% insiders, and 32.83% retail investors. Viking global investors lp is the largest institutional shareholder, holding 9.35% of RLYB shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.52% of its assets in Rallybio shares.
RLYB Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Rallybio | 63.08% | 4.10% | 32.83% |
| Sector | Healthcare Stocks | 42.54% | 10.83% | 46.63% |
| Industry | Biotech Stocks | 45.22% | 10.75% | 44.04% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Viking global investors lp | 4.19M | 9.35% | $2.09M |
| Johnson & johnson | 3.64M | 8.11% | $1.81M |
| 5am venture management | 3.63M | 8.10% | $1.81M |
| New leaf venture partners | 3.30M | 7.36% | $1.65M |
| Tpg gp a | 3.03M | 6.75% | $1.51M |
| Pivotal bioventure partners investment advisor | 2.40M | 5.36% | $1.20M |
| Fmr | 1.69M | 3.78% | $845.50K |
| Almitas capital | 1.54M | 3.43% | $767.83K |
| Vanguard group | 999.63K | 2.23% | $498.81K |
| Aju ib investment | 754.68K | 1.68% | $377.34K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| New leaf venture partners | 3.30M | 3.83% | $1.65M |
| Pivotal bioventure partners investment advisor | 2.40M | 0.69% | $1.20M |
| 5am venture management | 3.63M | 0.66% | $1.81M |
| Johnson & johnson | 3.64M | 0.36% | $1.81M |
| Aju ib investment | 754.68K | 0.33% | $377.34K |
| Canaan partners xi | 450.00K | 0.22% | $224.55K |
| Almitas capital | 1.54M | 0.18% | $767.83K |
| Tpg gp a | 3.03M | 0.08% | $1.51M |
| Rangeley capital | 83.01K | 0.04% | $41.42K |
| Viking global investors lp | 4.19M | 0.01% | $2.09M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Renaissance | 714.80K | 0.00% | 229.77K |
| Goldman sachs group | 181.20K | - | 167.96K |
| Vanguard group | 999.63K | - | 89.69K |
| Rangeley capital | 83.01K | 0.04% | 83.01K |
| Prudential financial | 38.40K | - | 38.40K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Abrdn | - | - | -1.60M |
| Blackrock | 315.63K | - | -1.36M |
| Allostery investments lp | - | - | -752.24K |
| Laurion capital management lp | - | - | -735.54K |
| Canaan partners xi | 450.00K | 0.22% | -490.98K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Rangeley capital | 83.01K | 0.04% | 83.01K | $41.42K |
| Prudential financial | 38.40K | - | 38.40K | $19.16K |
| Resources investment advisors, llc. | 20.00K | 0.00% | 20.00K | $9.98K |
| Citigroup | 9.89K | - | 9.89K | $4.94K |
| Cubist systematic strategies | 1.82K | - | 1.82K | $2.44K |
Sold Out
| Holder | Change |
|---|---|
| Nelson, van denburg & campbell wealth management group | -5.00 |
| Farther finance advisors | -9.00 |
| Nisa investment advisors | -25.00 |
| Amalgamated bank | -559.00 |
| Raymond james financial | -850.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 43 | -10.42% | 28,283,712 | -9.33% | 63 | 1.30% | 13 | -23.53% | 13 | 8.33% |
| Jun 30, 2025 | 48 | 9.09% | 31,192,738 | 31.24% | 69 | 2.47% | 17 | 70.00% | 12 | -20.00% |
| Mar 31, 2025 | 47 | -4.08% | 32,001,262 | -1.32% | 71 | 1.35% | 11 | -45.00% | 15 | 36.36% |
| Dec 31, 2024 | 47 | -4.08% | 31,658,675 | 1.43% | 70 | 1.45% | 18 | 38.46% | 11 | -50.00% |
| Sep 30, 2024 | 49 | -20.97% | 31,212,752 | -1.30% | 69 | 1.16% | 14 | -56.25% | 22 | 46.67% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 635.77K | 1.52% | -13.89K |
| abrdn Healthcare Investors | 630.00K | 1.51% | -125.08K |
| abrdn Healthcare Opportunities Fund | 594.62K | 1.43% | - |
| abrdn Healthcare Opportunities | 594.62K | 1.43% | - |
| Fidelity Select Biotechnology | 581.09K | 1.40% | - |
| abrdn Life Sciences Investors | 245.57K | 0.59% | -131.81K |
| Fidelity Global Micro-Cap F | 175.00K | 0.42% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 170.88K | 0.41% | -77.86K |
| Fidelity Extended Market Index | 123.79K | 0.30% | -871.00 |
| Vifag 2002 SICAV | 100.00K | 0.24% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 14, 2023 | Lieber Jonathan I | - | Buy | $26.05K |
| Mar 07, 2023 | PARMAR KUSH | - | Sell | $820.00K |
| Mar 07, 2023 | 5AM Partners V, LLC | - | Sell | $820.00K |
| Nov 15, 2022 | VIKING GLOBAL INVESTORS LP | - | Buy | $20.00M |
| Jun 03, 2022 | PARMAR KUSH | Sell | $1.25M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q2 | - | - |
| 2024 Q1 | - | - |
| 2023 Q2 | - | - |
RLYB Ownership FAQ
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