RC
RLYB icon

Rangeley Capital’s Rallybio RLYB Stock Holding History

Rangeley Capital’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 		$270K Buy
30,130
+25,130
+503% +$172K 0.26% 80
2025
Q4 		$27.4K Sell
5,000
-5,376
-52% -$27.7K 0.02% 119
2025
Q3 		$41.4K Buy
+10,376
New +$43.6K 0.04% 123

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

Rangeley Capital's RLYB Position: Q1 2026 in Review

Rangeley Capital increased its Rallybio (RLYB) stake by 503% in Q1 2026, buying an estimated $172K and bringing the position to 30,130 shares worth $270K. The position accounts for 0.26% of the portfolio, ranked #80.

Rangeley Capital first reported a position in RLYB in Q3 2025 and has held it in 3 quarters since. 38 funds tracked by Wall St. Rank hold RLYB as of Q1 2026.

  • Rangeley Capital held 30,130 shares of Rallybio worth $270K as of Q1 2026.
  • Rangeley Capital bought 25,130 Rallybio shares in Q1 2026, an estimated $172K.
  • Rallybio made up 0.26% of Rangeley Capital's portfolio in Q1 2026, its #80 holding.
  • Rangeley Capital first reported a position in Rallybio in Q3 2025 and has held it in 3 quarters since.
  • 38 funds tracked by Wall St. Rank held Rallybio as of Q1 2026.

Based on Rangeley Capital's 13F filing for Q1 2026, filed 15 May 2026.