NEW HAVEN, CT
RALLYBIO CORPRLYB— Latest position per institution from SEC 13F filings
15
Institutional holders
13.17M
Total shares held
88.49M
Estimated value
658.34K
Avg. position size
CITADEL ADVISORS LLC
CIK 1423053
Shares
7.71M
Value
12.73M
Filed
Jun 30, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
926.35K
Value
14.82M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
794.72K
Value
12.72M
Filed
Jun 30, 2026
VIKING GLOBAL INVESTORS LP
CIK 1103804
Shares
524.35K
Value
8.39M
Filed
Jun 30, 2026
CORMORANT ASSET MANAGEMENT, LP
CIK 1583977
Shares
400K
Value
3.59M
Filed
Mar 31, 2026
TPG GP A, LLC
CIK 1903793
Shares
378.55K
Value
6.06M
Filed
Jun 30, 2026
BALYASNY ASSET MANAGEMENT L.P.
CIK 1218710
Shares
376.57K
Value
3.38M
Filed
Mar 31, 2026
LAURION CAPITAL MANAGEMENT LP
CIK 1390202
Shares
302.76K
Value
2.72M
Filed
Mar 31, 2026
PIVOTAL BIOVENTURE PARTNERS INVESTMENT ADVISOR LLC
CIK 1844645
Shares
300.58K
Value
4.81M
Filed
Jun 30, 2026
5AM VENTURE MANAGEMENT, LLC
CIK 1799883
Shares
291.79K
Value
2.62M
Filed
Mar 31, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
199.91K
Value
3.20M
Filed
Jun 30, 2026
NANTAHALA CAPITAL MANAGEMENT, LLC
CIK 1472322
Shares
188.42K
Value
3.01M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
172.50K
Value
2.76M
Filed
Jun 30, 2026
JOHNSON & JOHNSON
CIK 200406
Shares
152.90K
Value
1.37M
Filed
Mar 31, 2026
ALMITAS CAPITAL LLC
CIK 1596468
Shares
120.68K
Value
1.93M
Filed
Jun 30, 2026
RANGELEY CAPITAL, LLC
CIK 1517796
Shares
104.85K
Value
1.68M
Filed
Jun 30, 2026
AJU IB INVESTMENT CO., LTD.
CIK 1710065
Shares
94.33K
Value
846.18K
Filed
Mar 31, 2026
MARINER, LLC
CIK 1373442
Shares
50.57K
Value
809.06K
Filed
Jun 30, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
47.42K
Value
758.77K
Filed
Jun 30, 2026
DELTEC ASSET MANAGEMENT LLC
CIK 1269950
Shares
33.75K
Value
302.74K
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | 1423053 | 7.71M | 12.73M | Jun 30, 2026 |
| 2 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 926.35K | 14.82M | Jun 30, 2026 |
| 3 | FMR LLC | 315066 | 794.72K | 12.72M | Jun 30, 2026 |
| 4 | VIKING GLOBAL INVESTORS LP | 1103804 | 524.35K | 8.39M | Jun 30, 2026 |
| 5 | CORMORANT ASSET MANAGEMENT, LP | 1583977 | 400K | 3.59M | Mar 31, 2026 |
| 6 | TPG GP A, LLC | 1903793 | 378.55K | 6.06M | Jun 30, 2026 |
| 7 | BALYASNY ASSET MANAGEMENT L.P. | 1218710 | 376.57K | 3.38M | Mar 31, 2026 |
| 8 | LAURION CAPITAL MANAGEMENT LP | 1390202 | 302.76K | 2.72M | Mar 31, 2026 |
| 9 | PIVOTAL BIOVENTURE PARTNERS INVESTMENT ADVISOR LLC | 1844645 | 300.58K | 4.81M | Jun 30, 2026 |
| 10 | 5AM VENTURE MANAGEMENT, LLC | 1799883 | 291.79K | 2.62M | Mar 31, 2026 |
| 11 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 199.91K | 3.20M | Jun 30, 2026 |
| 12 | NANTAHALA CAPITAL MANAGEMENT, LLC | 1472322 | 188.42K | 3.01M | Jun 30, 2026 |
| 13 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 172.50K | 2.76M | Jun 30, 2026 |
| 14 | JOHNSON & JOHNSON | 200406 | 152.90K | 1.37M | Mar 31, 2026 |
| 15 | ALMITAS CAPITAL LLC | 1596468 | 120.68K | 1.93M | Jun 30, 2026 |
| 16 | RANGELEY CAPITAL, LLC | 1517796 | 104.85K | 1.68M | Jun 30, 2026 |
| 17 | AJU IB INVESTMENT CO., LTD. | 1710065 | 94.33K | 846.18K | Mar 31, 2026 |
| 18 | MARINER, LLC | 1373442 | 50.57K | 809.06K | Jun 30, 2026 |
| 19 | JANE STREET GROUP, LLC | 1595888 | 47.42K | 758.77K | Jun 30, 2026 |
| 20 | DELTEC ASSET MANAGEMENT LLC | 1269950 | 33.75K | 302.74K | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.