| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | 10% | $2,897,379 | 4,222,969 | VIKING GLOBAL INVESTORS LP | 31 Dec 2025 | |||
| FMR LLC | 4.3% | $441,675 | 1,766,701 | FMR LLC | 31 Dec 2024 |
As of 31 Dec 2025, 43 institutional investors reported holding 24,139,358 shares of Rallybio Corp - Common Stock, par value $0.0001 per share (RLYB). This represents 57% of the company’s total 42,271,962 outstanding shares.
The largest institutional shareholders of Rallybio Corp - Common Stock, par value $0.0001 per share (RLYB) together control 57% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | 9.9% | 4,194,777 | 0% | 0.01% | $2,878,037 |
| JOHNSON & JOHNSON | 8.6% | 3,636,363 | 0% | 0.45% | $2,494,909 |
| 5AM Venture Management, LLC | 8.6% | 3,630,724 | 0% | 0.78% | $2,491,040 |
| TPG GP A, LLC | 7.2% | 3,028,414 | 0% | 0.08% | $2,089,606 |
| Pivotal bioVenture Partners Investment Advisor LLC | 5.7% | 2,404,644 | 0% | 0.64% | $1,649,586 |
| FMR LLC | 4% | 1,694,388 | 0% | 0% | $1,162,520 |
| Almitas Capital LLC | 3.6% | 1,529,653 | -0.59% | 0.23% | $1,049,495 |
| VANGUARD GROUP INC | 2.4% | 1,016,249 | +1.7% | 0% | $697,147 |
| RENAISSANCE TECHNOLOGIES LLC | 2% | 835,692 | +17% | 0% | $573,368 |
| Canaan Partners XI LLC | 1.1% | 450,000 | 0% | 0.23% | $308,700 |
| Mariner, LLC | 0.96% | 404,546 | 0% | 0% | $277,559 |
| CITADEL ADVISORS LLC | 0.6% | 253,842 | -42% | 0% | $174,161 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.59% | 248,005 | +1.2% | 0% | $170,191 |
| BlackRock, Inc. | 0.34% | 141,663 | 0% | 0% | $97,195 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.24% | 100,724 | -26% | 0% | $69,107 |
| XTX Topco Ltd | 0.23% | 97,313 | +65% | 0% | $66,766 |
| ACADIAN ASSET MANAGEMENT LLC | 0.2% | 83,480 | -7.5% | 0% | $56,000 |
| STATE STREET CORP | 0.15% | 62,072 | 0% | 0% | $42,588 |
| Rangeley Capital, LLC | 0.09% | 40,000 | -52% | 0.02% | $27,444 |
| NORTHERN TRUST CORP | 0.09% | 38,124 | 0% | 0% | $26,157 |
| TWO SIGMA INVESTMENTS, LP | 0.09% | 37,000 | +72% | 0% | $25,386 |
| PRUDENTIAL FINANCIAL INC | 0.07% | 29,100 | -24% | 0% | $19,966 |
| Virtu Financial LLC | 0.06% | 27,132 | -31% | 0% | $19,000 |
| HRT FINANCIAL LP | 0.05% | 21,387 | -34% | 0% | $14,000 |
| OneDigital Investment Advisors LLC | 0.05% | 20,000 | 0% | 0% | $13,722 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 24,139,358 | $16,571,283 | -$38,170 | $0.69 | 43 |
| 2025 Q3 | 28,293,762 | $14,121,676 | -$1,021,666 | $0.50 | 45 |
| 2025 Q2 | 31,192,738 | $10,521,574 | -$558,784 | $0.34 | 48 |
| 2025 Q1 | 32,001,262 | $20,918,290 | -$325,165 | $0.65 | 47 |
| 2024 Q4 | 32,428,353 | $31,130,298 | -$372,186 | $0.96 | 49 |
| 2024 Q3 | 31,212,752 | $36,517,099 | -$480,838 | $1.17 | 49 |
| 2024 Q2 | 31,632,749 | $42,387,896 | +$1,547,544 | $1.34 | 64 |
| 2024 Q1 | 30,198,382 | $55,866,389 | -$3,948,463 | $1.85 | 59 |
| 2023 Q4 | 31,751,116 | $75,885,524 | +$1,489,758 | $2.39 | 53 |
| 2023 Q3 | 31,203,619 | $105,155,071 | -$1,411,692 | $3.37 | 58 |
| 2023 Q2 | 33,260,971 | $188,259,076 | +$6,505,885 | $5.66 | 57 |
| 2023 Q1 | 32,110,359 | $183,344,535 | -$1,268,660 | $5.71 | 51 |
| 2022 Q4 | 32,312,322 | $212,289,584 | +$34,532,833 | $6.57 | 55 |
| 2022 Q3 | 27,791,116 | $402,136,609 | +$2,162,886 | $14.47 | 50 |
| 2022 Q2 | 27,659,695 | $208,831,000 | -$776,317 | $7.55 | 44 |
| 2022 Q1 | 27,776,100 | $193,896,000 | +$124,771 | $6.98 | 47 |
| 2021 Q4 | 26,674,067 | $252,852,000 | +$1,365,608 | $9.54 | 37 |
| 2021 Q3 | 24,054,356 | $419,896,000 | +$419,896,000 | $17.58 | 33 |