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Cormorant Asset Management’s Rallybio RLYB Stock Holding History

Cormorant Asset 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
2026
Q2 		– Sell
-400,000
Closed -$3.59M – 56
2026
Q1 		$3.59M Buy
+400,000
New +$2.73M 0.18% 46

Other funds holding RLYB

ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return
TGA
TPG GP A Fort Worth, Texas $5B AUM 58.56% 1-Year Est. Return
PBPIA
Pivotal bioVenture Partners Investment Advisor San Francisco, California $308M AUM 120.89% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3.01B AUM 119.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AC
Almitas Capital Santa Monica, California $417M AUM 22.81% 1-Year Est. Return

Cormorant Asset Management's RLYB Position: Q2 2026 in Review

Cormorant Asset Management sold out of Rallybio (RLYB) in Q2 2026, closing a stake of 400,000 shares — an estimated $3.59M sold.

Cormorant Asset Management first reported a position in RLYB in Q1 2026 and held it in 1 quarter. The position peaked at $3.59M in Q1 2026. 37 funds tracked by Wall St. Rank hold RLYB as of Q2 2026.

  • Cormorant Asset Management reported no remaining Rallybio position as of Q2 2026 after selling out during the quarter.
  • Cormorant Asset Management sold 400,000 Rallybio shares in Q2 2026, an estimated $3.59M.
  • Cormorant Asset Management first reported a position in Rallybio in Q1 2026 and held it in 1 quarter.
  • Cormorant Asset Management's Rallybio position peaked at $3.59M in Q1 2026.
  • 37 funds tracked by Wall St. Rank held Rallybio as of Q2 2026.

Based on Cormorant Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.