5AM Venture Management’s Rallybio RLYB Stock Holding History

5AM Venture 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	-291,788	Closed	-$2.62M	–	20
2026 Q1	$2.62M	Sell	291,788 -162,053	-36%	-$1.11M	0.73%	19
2025 Q4	$2.49M	Hold	453,841	–	–	0.78%	21
2025 Q3	$1.81M	Hold	453,841	–	–	0.66%	23
2025 Q2	$1.23M	Hold	453,841	–	–	0.47%	26
2025 Q1	$2.38M	Hold	453,841	–	–	0.9%	25
2024 Q4	$3.49M	Hold	453,841	–	–	0.83%	25
2024 Q3	$4.25M	Hold	453,841	–	–	0.88%	23
2024 Q2	$4.87M	Hold	453,841	–	–	1.09%	22
2024 Q1	$6.72M	Hold	453,841	–	–	1.5%	20
2023 Q4	$8.68M	Hold	453,841	–	–	2.3%	14
2023 Q3	$12.2M	Hold	453,841	–	–	3.52%	9
2023 Q2	$20.5M	Hold	453,841	–	–	5.12%	4
2023 Q1	$20.7M	Sell	453,841 -12,500	-3%	-$646K	5.3%	4
2022 Q4	$24.5M	Hold	466,341	–	–	6.59%	4
2022 Q3	$54M	Hold	466,341	–	–	10.34%	3
2022 Q2	$28.2M	Sell	466,341 -31,250	-6%	-$2.35M	6.97%	5
2022 Q1	$27.8M	Sell	497,591 -26,250	-5%	-$2.17M	6.07%	5
2021 Q4	$40M	Hold	523,841	–	–	7.5%	4
2021 Q3	$73.7M	Buy	+523,841	New	+$61.4M	14.96%	2

Other funds holding RLYB

ACM

ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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 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 Malvern, Pennsylvania $4.68T AUM

Almitas Capital Santa Monica, California $417M AUM 22.81% 1-Year Est. Return

5AM Venture Management's RLYB Position: Q2 2026 in Review

5AM Venture Management sold out of Rallybio (RLYB) in Q2 2026, closing a stake of 291,788 shares — an estimated $2.62M sold.

5AM Venture Management first reported a position in RLYB in Q3 2021 and held it in 19 quarters. The position peaked at $73.7M in Q3 2021. 37 funds tracked by Wall St. Rank hold RLYB as of Q2 2026.

5AM Venture Management reported no remaining Rallybio position as of Q2 2026 after selling out during the quarter.
5AM Venture Management sold 291,788 Rallybio shares in Q2 2026, an estimated $2.62M.
5AM Venture Management first reported a position in Rallybio in Q3 2021 and held it in 19 quarters.
5AM Venture Management's Rallybio position peaked at $73.7M in Q3 2021.
37 funds tracked by Wall St. Rank held Rallybio as of Q2 2026.

Based on 5AM Venture Management's 13F filing for Q2 2026, filed 14 Aug 2026.