RA Capital Management’s GH Research GHRS Stock Holding History

RA Capital Management’s Portfolio GHRS Stock Details GHRS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$108M	Hold	7,676,697	–	–	1.14%	19
2025 Q4	$97.5M	Hold	7,676,697	–	–	1%	22
2025 Q3	$110M	Hold	7,676,697	–	–	1.35%	19
2025 Q2	$93.6M	Buy	7,676,697 +732,049	+11%	+$8.03M	1.58%	16
2025 Q1	$76.6M	Buy	6,944,648 +257,959	+4%	+$2.88M	1.28%	21
2024 Q4	$46.8M	Hold	6,686,689	–	–	0.62%	34
2024 Q3	$44.7M	Buy	6,686,689 +85,000	+1%	+$872K	0.52%	40
2024 Q2	$77M	Buy	6,601,689 +349,975	+6%	+$4.2M	1.02%	28
2024 Q1	$66.6M	Buy	6,251,714 +664,381	+12%	+$5.28M	0.85%	31
2023 Q4	$32.4M	Hold	5,587,333	–	–	0.51%	39
2023 Q3	$56.2M	Hold	5,587,333	–	–	1.11%	26
2023 Q2	$66.3M	Buy	5,587,333 +6,172	+0.1%	+$63.3K	1.25%	24
2023 Q1	$44.6M	Buy	5,581,161 +682,788	+14%	+$6.28M	1.01%	33
2022 Q4	$47.6M	Hold	4,898,373	–	–	0.97%	31
2022 Q3	$56.9M	Hold	4,898,373	–	–	1.21%	30
2022 Q2	$48.9M	Buy	4,898,373 +71,043	+1%	+$923K	1.3%	24
2022 Q1	$88.3M	Buy	4,827,330 +1,983,573	+70%	+$35M	1.93%	12
2021 Q4	$66.3M	Sell	2,843,757 -170,200	-6%	-$3.74M	1.17%	23
2021 Q3	$66.5M	Buy	3,013,957 +35,002	+1%	+$712K	0.92%	32
2021 Q2	$64.7M	Buy	+2,978,955	New	+$60.8M	1.04%	28

Other funds holding GHRS

LCM

Lynx1 Capital Management San Juan, Puerto Rico $633M AUM 173.22% 1-Year Est. Return

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

ACA

Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return

Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return

TCA

Troluce Capital Advisors Dorado, Puerto Rico $1.63B AUM 37.23% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

JFG

Jefferies Financial Group New York $14.6B AUM 40.95% 1-Year Est. Return

5VM

5AM Venture Management San Francisco, California $360M AUM 345.76% 1-Year Est. Return

RA Capital Management's GHRS Position: Q1 2026 in Review

RA Capital Management held its GH Research (GHRS) position steady in Q1 2026 at 7,676,697 shares worth $108M. The position accounts for 1.14% of the portfolio, ranked #19.

RA Capital Management first reported a position in GHRS in Q2 2021 and has held it in 20 quarters since. The position peaked at $110M in Q3 2025. 54 funds tracked by Wall St. Rank hold GHRS as of Q1 2026.

RA Capital Management held 7,676,697 shares of GH Research worth $108M as of Q1 2026.
RA Capital Management left its GH Research share count unchanged in Q1 2026.
GH Research made up 1.14% of RA Capital Management's portfolio in Q1 2026, its #19 holding.
RA Capital Management first reported a position in GH Research in Q2 2021 and has held it in 20 quarters since.
RA Capital Management's GH Research position peaked at $110M in Q3 2025.
54 funds tracked by Wall St. Rank held GH Research as of Q1 2026.

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