13F

Stock

Rallybio Corp

RLYB · held by 46 managers

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025

Reported value

$20.6M

Holders

46

+0 new · −0 exited

Holders’ est. mark

$682.4K

Price effect on 5 books still in the name

Largest holder

$4.14M

AJU IB Investment Co., Ltd.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026

Who holds it

Notable only
InvestorSharesValueEst. markChange
AJU IB Investment Co., Ltd.754.7K$4.14M—Held
Viking Global4.19M$2.88M—Held
JOHNSON & JOHNSON3.64M$2.49M$680.4KAdded$680.4K
5AM Venture Management, LLC3.63M$2.49M—Held
TPG GP A, LLC3.03M$2.09M—Held
Pivotal bioVenture Partners Investment Advisor LLC2.4M$1.65M—Held
Fidelity1.69M$1.16M—Held
Almitas Capital LLC1.53M$1.05M—Held
Vanguard1.02M$697.1K—Held
Renaissance Technologies835.7K$573.4K—Held
Canaan Partners XI LLC450K$308.7K—Held
Mariner, LLC404.5K$277.6K—Held
Citadel253.8K$174.2K—Held
GEODE CAPITAL MANAGEMENT, LLC248K$170.2K—Held
BlackRock, Inc.141.7K$97.2K—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP100.7K$69.1K—Held
XTX Topco Ltd97.3K$66.8K—Held
State Street62.1K$42.6K—Held
Rangeley Capital, LLC40K$27.4K—Held
NORTHERN TRUST CORP38.1K$26.2K—Held
TWO SIGMA INVESTMENTS, LP37K$25.4K—Held
PRUDENTIAL FINANCIAL INC29.1K$20K—Held
OneDigital Investment Advisors LLC20K$13.7K—Held
TWO SIGMA ADVISERS, LP19.3K$13.2K—Held
Ground Swell Capital, LLC15.4K$10.6K—Held
GREAT VALLEY ADVISOR GROUP, INC.15K$10.3K—Held
Utah Retirement Systems13.2K$9.08K—Held
ACT Advisors, LLC.13.2K$9.02K—Held
MERCER GLOBAL ADVISORS INC /ADV10K$6.86K—Held
CAPTRUST FINANCIAL ADVISORS10K$6.86K—Held
Hartford Financial Management Inc.6.5K$4.46K—Held
BARCLAYS PLC5.72K$3.92K$1.07KAdded$1.07K
MORGAN STANLEY4.64K$3.18K$868Added$868
UBS Group AG4.58K$3.14K—Held
Tower Research Capital LLC (TRC)4.52K$3.1K—Held
SBI Securities Co., Ltd.4.25K$2.92K—Held
CITIGROUP INC3.93K$2.7K—Held
BNP PARIBAS FINANCIAL MARKETS980$672—Held
WELLS FARGO & COMPANY/MN300$206—Held
BANK OF AMERICA CORP /DE/251$172$41Added$65
ACADIAN ASSET MANAGEMENT LLC83.5K$56—Held
JPMORGAN CHASE & CO82$56—Held
Allworth Financial LP50$35$10Added$10
Virtu Financial LLC27.1K$19—Held
HRT FINANCIAL LP21.4K$14—Held
GSA CAPITAL PARTNERS LLP19.3K$13—Held

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.