IR
Superintel
OverviewMarketsWatchlist
© 2026 IR SuperintelMethodologyContact

Rallybio Corp

CUSIP: 75120L100 | 133 institutional holders

Quarters

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13D/ATPG GP A, LLC378,5517.2%New 5%+ stakeMar 1, 202660d ahead of 13F (3,028,414 sh) · −2,649,863
13D/ATPG GP A, LLC378,551
7.2% of class · Mar 1, 2026New 5%+ stake
60d ahead of 13F (3,028,414 sh) · −2,649,863

Institutional Holders — Q1 2026

Vanguard Group Inc0
0.0% of portfolio›$0
StyleTurnoverLocationFiled
Vanguard Group Inc
0$00.0%N/AN/AValley Forge, PA2026-05-14