Millennium Management
RLYB icon

Millennium Management’s Rallybio RLYB Stock Holding History

Millennium Management’s Portfolio RLYB Stock Details RLYB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-22,480
Closed -$60.8K – 6398
2025
Q2 		$60.8K Sell
22,480
-5,924
-21% -$15.7K ﹤0.01% 5586
2025
Q1 		$149K Sell
28,404
-13,960
-33% -$88.2K ﹤0.01% 5366
2024
Q4 		$325K Sell
42,364
-504
-1% -$4.22K ﹤0.01% 5027
2024
Q3 		$401K Sell
42,868
-14,628
-25% -$141K ﹤0.01% 5002
2024
Q2 		$616K Buy
57,496
+32,899
+134% +$446K ﹤0.01% 4456
2024
Q1 		$364K Buy
24,597
+20,151
+453% +$281K ﹤0.01% 5019
2023
Q4 		$85K Buy
+4,446
New +$109K ﹤0.01% 5381
2023
Q3 		– Sell
-1,268
Closed -$57.4K – 6494
2023
Q2 		$57.4K Buy
+1,268
New +$62.1K ﹤0.01% 5446
2022
Q3 		– Sell
-2,274
Closed -$137K – 7421
2022
Q2 		$137K Sell
2,274
-862
-27% -$64.8K ﹤0.01% 5802
2022
Q1 		$175K Buy
+3,136
New +$259K ﹤0.01% 5885
2021
Q4 		– Sell
-7,655
Closed -$1.08M – 7299
2021
Q3 		$1.08M Buy
+7,655
New +$898K ﹤0.01% 4595

Other funds holding RLYB

Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
JJ
Johnson & Johnson New Brunswick, New Jersey $652M AUM 198.07% 1-Year Est. Return
5VM
5AM Venture Management San Francisco, California $360M AUM 345.76% 1-Year Est. Return
NLVP
New Leaf Venture Partners New York $43M AUM 25.55% 1-Year Est. Return
TGA
TPG GP A Fort Worth, Texas $3.68B AUM 14.99% 1-Year Est. Return
PBPIA
Pivotal bioVenture Partners Investment Advisor San Francisco, California $280M AUM 181.4% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
AC
Almitas Capital Santa Monica, California $443M AUM 42.36% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AIIC
AJU IB Investment Company Seoul, South Korea $30.5M AUM 128.96% 1-Year Est. Return

Millennium Management's RLYB Position: Q3 2025 in Review

Millennium Management sold out of Rallybio (RLYB) in Q3 2025, closing a stake of 22,480 shares — an estimated $60.8K sold.

Millennium Management first reported a position in RLYB in Q3 2021 and held it in 11 quarters. The position peaked at $1.08M in Q3 2021. 45 funds tracked by Wall St. Rank hold RLYB as of Q3 2025.

  • Millennium Management reported no remaining Rallybio position as of Q3 2025 after selling out during the quarter.
  • Millennium Management sold 22,480 Rallybio shares in Q3 2025, an estimated $60.8K.
  • Millennium Management first reported a position in Rallybio in Q3 2021 and held it in 11 quarters.
  • Millennium Management's Rallybio position peaked at $1.08M in Q3 2021.
  • 45 funds tracked by Wall St. Rank held Rallybio as of Q3 2025.

Based on Millennium Management's 13F filing for Q3 2025, filed 14 Nov 2025.