DOSSIER · 13F Holders · Q3 2025

RALLYBIO CORP

4 institutions still hold RALLYBIO CORP as of Q3 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 75120L100·4 13F holders·last filed Sep 30, 2025
Market cap
13F value held
$2M
visible holders
Holders
4
filers reporting
Concentration
98.37%
New Leaf Venture Partners, L.L.C. #1
top holder share
AI Holders Summary · Q3 2025

4 institutions reported RALLYBIO CORP in Q3 2025. New Leaf Venture Partners, L.L.C. leads at 98.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
New Leaf Venture Partners, L.L.C.
CIK 0001631614
$2M3.3M3.99%Q3 2025
02
HRT FINANCIAL LP
CIK 0001475597
$14K21K0.00%Q4 2025
03
TWO SIGMA ADVISERS, LP
CIK 0001478735
$13K19K0.00%Q4 2025
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025