Barclays
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Barclays’s Rallybio RLYB Stock Holding History

Barclays’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 		$48 Buy
+3
New +$39 ﹤0.01% 5243
2026
Q1 		– Sell
-715
Closed -$3.92K – 5369
2025
Q4 		$3.92K Hold
715
– – ﹤0.01% 5002
2025
Q3 		$2.85K Sell
715
-1,209
-63% -$5.08K ﹤0.01% 5127
2025
Q2 		$5.2K Hold
1,924
– – ﹤0.01% 4968
2025
Q1 		$10.1K Hold
1,924
– – ﹤0.01% 4866
2024
Q4 		$14.8K Hold
1,924
– – ﹤0.01% 4955
2024
Q3 		$18K Sell
1,924
-1,393
-42% -$13.4K ﹤0.01% 4907
2024
Q2 		$35.6K Sell
3,317
-1,311
-28% -$17.8K ﹤0.01% 4320
2024
Q1 		$68.5K Sell
4,628
-2,557
-36% -$35.6K ﹤0.01% 4545
2023
Q4 		$137K Buy
7,185
+6,416
+834% +$157K ﹤0.01% 4550
2023
Q3 		$20.7K Buy
769
+6
+0.8% +$260 ﹤0.01% 4173
2023
Q2 		$34.5K Sell
763
-434
-36% -$21.3K ﹤0.01% 3992
2023
Q1 		$54.7K Buy
1,197
+579
+94% +$29.9K ﹤0.01% 4422
2022
Q4 		$32.5K Buy
618
+533
+627% +$31.5K ﹤0.01% 4697
2022
Q3 		$10K Sell
85
-591
-87% -$52.6K ﹤0.01% 4308
2022
Q2 		$41K Sell
676
-267
-28% -$20.1K ﹤0.01% 4113
2022
Q1 		$52K Buy
+943
New +$78K ﹤0.01% 4107

Other funds holding RLYB

ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 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
RC
Rangeley Capital New Canaan, Connecticut $109M AUM 97.13% 1-Year Est. Return

Barclays's RLYB Position: Q2 2026 in Review

Barclays opened a new position in Rallybio (RLYB) in Q2 2026: 3 shares worth $48. The stake represents ﹤0.01% of the portfolio and ranks #5243 among its holdings. This is a return to the name: Barclays previously reported a position in RLYB as recently as Q4 2025.

Barclays first reported a position in RLYB in Q1 2022 and has held it in 17 quarters since. The position peaked at $137K in Q4 2023. 37 funds tracked by Wall St. Rank hold RLYB as of Q2 2026.

  • Barclays held 3 shares of Rallybio worth $48 as of Q2 2026.
  • Rallybio was a new Barclays position in Q2 2026.
  • Rallybio made up ﹤0.01% of Barclays's portfolio in Q2 2026, its #5243 holding.
  • Barclays first reported a position in Rallybio in Q1 2022 and has held it in 17 quarters since.
  • Barclays's Rallybio position peaked at $137K in Q4 2023.
  • 37 funds tracked by Wall St. Rank held Rallybio as of Q2 2026.

Based on Barclays's 13F filing for Q2 2026, filed 14 Aug 2026.