GH Research GHRS Institutional Ownership

NASDAQ GHRS

$27.84 -0.08 (-0.29%)

As of: Sep 4, 2026 · 11:51 AM EDT

Institutions by Trading Activity

62 Institutions

Increased 36 58.1%

Unchanged 10 16.1%

Reduced 16 25.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

62.65%

▼-15.25 pp QoQ

Shares Held by Institutions

38.24Mn

of 61.04Mn outstanding

▲+14.62% QoQ

Shares Outstanding

61.04Mn

22.80Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+9 vs prior quarter

Net Shares Added (QoQ)

+4.88Mn

accumulated since last quarter

Value of Holdings

$1.07Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

GH Research PLC (NASDAQ:GHRS) showed up in the 13F filings of 62 institutional investors as of June 2026.

They owned 62.6% of outstanding stock in June 2026, down from 77.9% the prior quarter.
They increased total shares held in GH Research by 14.62% from the prior quarter, while the number of investors in GHRS increased 63.16% year over year.
Of these 62 holders, 36 added to their stakes in GH Research, 16 trimmed positions, and 10 made no changes.
Combined, these investors held 38.24Mn shares in GHRS for June 2026, up by 4.88Mn shares quarter on quarter, and down 5.08Mn shares year over year.
BVF INC/IL leads ownership in GHRS with 8.65Mn shares as of June 30, 2026, equal to 14.17% of outstanding shares.
The biggest buyers of GH Research for the quarter ending June 2026 included Deep Track Capital, LP (3.33Mn), FMR LLC (841.0K), Foresite Capital Management VI LLC (625.0K), BRAIDWELL LP (207.24K), JANE STREET GROUP, LLC (169.95K).
Top sellers of GHRS stock for the quarter ending June 2026 included MILLENNIUM MANAGEMENT LLC (614.5K), CenterBook Partners LP (147.14K), BOOTHBAY FUND MANAGEMENT, LLC (80.79K), HighVista Strategies LLC (54.44K), MARSHALL WACE, LLP (44.41K).
According to Business Quant data, leading holders of GHRS for June 2026 are BVF INC/IL (8.65Mn), RA CAPITAL MANAGEMENT, L.P. (7.64Mn), FMR LLC (5.98Mn), RTW INVESTMENTS, LP (5.93Mn), Deep Track Capital, LP (3.33Mn), Avoro Capital Advisors LLC (1.8Mn), Foresite Capital Management VI LLC (940.49K), Jefferies Financial Group Inc. (712.3K), BlackRock, Inc. (480.29K), UBS Group AG (477.41K).

Form 13F Holdings

62 Institutional Holders

Report period 30 Jun, 2026

Total shares held 38.24Mn

Of outstanding 62.65%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BVF INC/IL	0001056807	8,650,158	14.17%	0	0.00%	$232.52Mn
2	RA CAPITAL MANAGEMENT, L.P.	0001346824	7,636,813	12.51%	▼39,884	-0.52%	$205.28Mn
3	FMR LLC	0000315066	5,977,045	9.79%	▲841,000	+16.37%	$160.66Mn
4	RTW INVESTMENTS, LP	0001493215	5,933,815	9.72%	0	0.00%	$159.50Mn
5	Deep Track Capital, LP	0001856083	3,333,334	5.46%	▲3,333,334	0.00%	$89.60Mn
6	Avoro Capital Advisors LLC	0001633313	1,800,000	2.95%	0	0.00%	$48.38Mn
7	Foresite Capital Management VI LLC	0002013341	940,493	1.54%	▲625,001	+198.10%	$25.28Mn
8	Jefferies Financial Group Inc.	0000096223	712,300	1.17%	0	0.00%	$19.15Mn
9	BlackRock, Inc.	0002012383	480,287	0.79%	▲24,669	+5.41%	$12.91Mn
10	UBS Group AG	0001610520	477,408	0.78%	▲64,992	+15.76%	$12.83Mn
11	MILLENNIUM MANAGEMENT LLC	0001273087	323,399	0.53%	▼614,499	-65.52%	$8.69Mn
12	BRAIDWELL LP	0001920938	207,240	0.34%	▲207,240	0.00%	$5.57Mn
13	BOOTHBAY FUND MANAGEMENT, LLC	0001549230	202,103	0.33%	▼80,788	-28.56%	$5.43Mn
14	JANE STREET GROUP, LLC	0001595888	169,951	0.28%	▲169,951	0.00%	$4.57Mn
15	HighVista Strategies LLC	0001335325	158,770	0.26%	▼54,442	-25.53%	$4.27Mn
16	Trexquant Investment LP	0001633445	153,767	0.25%	▲83,959	+120.27%	$4.13Mn
17	Goldman Sachs Group Inc	0000886982	148,673	0.24%	▲103,878	+231.90%	$4.00Mn
18	XTX Topco Ltd	0001828301	86,986	0.14%	▲34,896	+66.99%	$2.34Mn
19	CITADEL ADVISORS LLC	0001423053	85,952	0.14%	▲20,488	+31.30%	$2.31Mn
20	AdvisorShares Investments LLC	0001425930	71,267	0.12%	▲4,233	+6.31%	$1.92Mn

Showing 1 to 20 of 62 holders