Two Sigma Advisers
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Two Sigma Advisers’s Rallybio RLYB Stock Holding History

Two Sigma Advisers’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
2026
Q1 		– Sell
-2,413
Closed -$13.2K – 1705
2025
Q4 		$13.2K Buy
+2,413
New +$12.4K ﹤0.01% 2323
2025
Q3 		– Sell
-11,113
Closed -$30K – 2590
2025
Q2 		$30K Sell
11,113
-265
-2% -$702 ﹤0.01% 2282
2025
Q1 		$59.6K Sell
11,378
-35
-0.3% -$221 ﹤0.01% 2306
2024
Q4 		$87.6K Sell
11,413
-37
-0.3% -$310 ﹤0.01% 2232
2024
Q3 		$107K Buy
11,450
+8,387
+274% +$80.8K ﹤0.01% 2160
2024
Q2 		$32.8K Buy
+3,063
New +$41.5K ﹤0.01% 2380

Other funds holding RLYB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
CAM
Cormorant Asset Management Boston, Massachusetts $1.99B AUM 737.95% 1-Year Est. Return
TGA
TPG GP A Fort Worth, Texas $3.68B AUM 14.99% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
LCM
Laurion Capital Management New York $2.29B AUM 75.73% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return
PBPIA
Pivotal bioVenture Partners Investment Advisor San Francisco, California $280M AUM 181.4% 1-Year Est. Return
5VM
5AM Venture Management San Francisco, California $360M AUM 345.76% 1-Year Est. Return
AC
Almitas Capital Santa Monica, California $443M AUM 42.36% 1-Year Est. Return

Two Sigma Advisers's RLYB Position: Q1 2026 in Review

Two Sigma Advisers sold out of Rallybio (RLYB) in Q1 2026, closing a stake of 2,413 shares — an estimated $13.2K sold.

Two Sigma Advisers first reported a position in RLYB in Q2 2024 and held it in 6 quarters. The position peaked at $107K in Q3 2024. 38 funds tracked by Wall St. Rank hold RLYB as of Q1 2026.

  • Two Sigma Advisers reported no remaining Rallybio position as of Q1 2026 after selling out during the quarter.
  • Two Sigma Advisers sold 2,413 Rallybio shares in Q1 2026, an estimated $13.2K.
  • Two Sigma Advisers first reported a position in Rallybio in Q2 2024 and held it in 6 quarters.
  • Two Sigma Advisers's Rallybio position peaked at $107K in Q3 2024.
  • 38 funds tracked by Wall St. Rank held Rallybio as of Q1 2026.

Based on Two Sigma Advisers's 13F filing for Q1 2026.