Rallybio Corp - RLYB

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2026 · Compare: Q1 2026
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
ADAR1 Capital Management, LLC History Added to 926,352 14,821 0.68% 0.01% 1 +905,817 4411.09% Q2 2026 Aug 14, 2026
FMR LLC History Added to 794,720 12,715 0.0% 0.0% 2 +1,269 0.16% Q2 2026 Aug 13, 2026
VIKING GLOBAL INVESTORS LP History No change 524,347 8,389 0.02% 0.01% 3 0 0.0% Q2 2026 Aug 14, 2026
TPG GP A, LLC History No change 378,551 6,056 0.12% 0.09% 4 0 0.0% Q2 2026 Aug 14, 2026
Pivotal bioVenture Partners Investment Advisor LLC History No change 300,579 4,809 1.56% 0.96% 5 0 0.0% Q2 2026 Aug 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 199,907 3,198 0.0% 0.0% 6 +43,380 27.71% Q2 2026 Aug 13, 2026
Nantahala Capital Management, LLC History Reduced 188,422 3,014 0.1% 0.1% 7 -112,213 -37.33% Q2 2026 Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC History Added to 172,497 2,759 0.0% 0.0% 8 +60,457 53.96% Q2 2026 Aug 13, 2026
Almitas Capital LLC History Reduced 120,682 1,930 0.46% 0.39% 9 -70,524 -36.88% Q2 2026 Aug 14, 2026
Rangeley Capital, LLC History Added to 104,850 1,677 1.53% 0.26% 10 +74,720 247.99% Q2 2026 Aug 14, 2026
CITADEL ADVISORS LLC History Added to 72,200 1,155 0.0% 0.0% 11 +52,314 263.07% Q2 2026 Sep 02, 2026
AJU IB Investment Co., Ltd. History No change 94,334 846 2.77% 2.77% 12 0 0.0% Q1 2026 May 08, 2026
Mariner, LLC History No change 50,566 809 0.0% 0.0% 13 0 0.0% Q2 2026 Aug 13, 2026
JANE STREET GROUP, LLC History New 47,423 758 0.0% 14 +47,423 New Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 32,047 512 0.0% 0.0% 15 -3,378 -9.54% Q2 2026 Aug 12, 2026
BlackRock, Inc. History Added to 30,332 485 0.0% 0.0% 16 +12,846 73.46% Q2 2026 Aug 07, 2026
HRT FINANCIAL LP History New 25,657 410 0.0% 17 +25,657 New Q2 2026 Aug 14, 2026
XTX Topco Ltd History Added to 21,497 343 0.0% 0.0% 18 +10,271 91.49% Q2 2026 Aug 14, 2026
VANGUARD FIDUCIARY TRUST CO History Added to 16,820 269 0.0% 0.0% 19 +3,273 24.16% Q2 2026 Aug 13, 2026
TWO SIGMA INVESTMENTS, LP History New 16,619 265 0.0% 20 +16,619 New Q2 2026 Aug 14, 2026
STATE STREET CORP History New 12,996 207 0.0% 21 +12,996 New Q2 2026 Aug 07, 2026
Quadrature Capital Ltd History New 12,995 207 0.0% 22 +12,995 New Q2 2026 Aug 06, 2026
DIMENSIONAL FUND ADVISORS LP History No change 11,280 180 0.0% 0.0% 23 0 0.0% Q2 2026 Aug 11, 2026
Vanguard Global Advisers, LLC History No change 1,442 23 0.0% 0.0% 24 0 0.0% Q2 2026 Aug 13, 2026
Hartford Financial Management Inc. History No change 812 12 0.0% 0.0% 25 0 0.0% Q2 2026 Jul 23, 2026
SBI Securities Co., Ltd. History Reduced 506 8 0.0% 0.0% 26 -18 -3.44% Q2 2026 Jul 22, 2026
Caitong International Asset Management Co., Ltd History New 434 6 0.0% 27 +434 New Q2 2026 Aug 04, 2026
UBS Group AG History Reduced 146 2 0.0% 0.0% 29 -7,768 -98.16% Q2 2026 Aug 13, 2026
Truvestments Capital LLC History New 129 2 0.0% 30 +129 New Q2 2026 Aug 12, 2026
MORGAN STANLEY History Reduced 125 2 0.0% 0.0% 28 -1 -0.79% Q2 2026 Aug 13, 2026
BNP PARIBAS FINANCIAL MARKETS History No change 120 1 0.0% 0.0% 31 0 0.0% Q2 2026 Aug 13, 2026
Cormorant Asset Management, LP History Closed out 0 0 0.18% -400,000 -100.0% Q2 2026 Aug 14, 2026
BALYASNY ASSET MANAGEMENT L.P. History Closed out 0 0 0.0% -376,573 -100.0% Q2 2026 Aug 14, 2026
Laurion Capital Management LP History Closed out 0 0 0.12% -302,756 -100.0% Q2 2026 Aug 13, 2026
5AM Venture Management, LLC History Closed out 0 0 0.73% -291,788 -100.0% Q2 2026 Aug 14, 2026
JOHNSON & JOHNSON History Closed out 0 0 0.21% -152,901 -100.0% Q2 2026 Aug 06, 2026
DELTEC ASSET MANAGEMENT LLC History Closed out 0 0 0.06% -33,750 -100.0% Q2 2026 Jul 21, 2026
GTS SECURITIES LLC History Closed out 0 0 0.01% -22,016 -100.0% Q2 2026 Aug 14, 2026
ACADIAN ASSET MANAGEMENT LLC History Closed out 0 0 0.0% -10,433 -100.0% Q2 2026 Aug 13, 2026
JPMORGAN CHASE & CO History Reduced 9 0 0.0% -2,488 -99.64% Q2 2026 Aug 12, 2026
Tower Research Capital LLC (TRC) History Closed out 0 0 0.0% -907 -100.0% Q2 2026 Aug 11, 2026
EverSource Wealth Advisors, LLC History New 31 0 +31 New Q2 2026 Jul 24, 2026
BARCLAYS PLC History New 3 0 +3 New Q2 2026 Aug 14, 2026
WELLS FARGO & COMPANY/MN History No change 37 0 0 0.0% Q2 2026 Aug 14, 2026
DANSKE BANK A/S History No change 1 0 0 0.0% Q2 2026 Aug 10, 2026
Allworth Financial LP History No change 6 0 0 0.0% Q2 2026 Aug 11, 2026
Fortitude Family Office, LLC History No change 53 0 0 0.0% Q2 2026 Jul 20, 2026