Who owns GHRSWhat GHRS owns — n/a

Who owns GH Research PLC?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.

Institutional ownership of GHRS from SEC Form 13F filings across 52 reporting managers. All positions are from one synchronized reporting period — 2026-03-31 books, filed up to 45 days after quarter end — so every row is comparable.

As of the 2026-03-31 reporting period, 52 institutions disclosed 47.4M shares of GH Research PLC worth $662.7M; the largest disclosed holder is Lynx1 Capital Management LP. Source: SEC Form 13F filings, parsed by EvidInvest.

13F holders

$662.7M

value, 2026 filers

47.4M

shares disclosed

new positions (2026 filers)

Top institutional holders

ordered by shares owned · positions as of 2026-03-31 · % of fund = share of the manager's own book · % of co. = share of GHRS's shares outstanding

#	Manager	Shares	Value	% of fund	% of co.	Δ shares QoQ
1	Lynx1 Capital Management LP	10.8M	$151.3M	23.9%	—	—
2	BVF INC/IL	8.7M	$121.6M	3.9%	—	—
3	RA CAPITAL MANAGEMENT, L.P.	7.7M	$107.9M	1.1%	—	—
4	RTW INVESTMENTS, LP	5.9M	$83.4M	0.8%	—	—
5	FMR LLC	5.1M	$72.2M	0.0%	—	—
6	Avoro Capital Advisors LLC	1.8M	$25.3M	0.2%	—	—
7	TORONTO DOMINION BANK	1.4M	$19.7M	0.0%	—	—
8	Troluce Capital Advisors LLC	990,472	$13.9M	0.9%	—	—
9	MILLENNIUM MANAGEMENT LLC	937,898	$13.2M	0.0%	—	—
10	Jefferies Financial Group Inc.	712,300	$10.0M	0.1%	—	—
11	5AM Venture Management, LLC	572,665	$8.1M	2.2%	—	—
12	BlackRock, Inc.	455,618	$6.4M	0.0%	—	—
13	UBS Group AG	412,416	$5.8M	0.0%	—	—
14	Foresite Capital Management VI LLC	315,492	$4.4M	1.0%	—	—
15	BOOTHBAY FUND MANAGEMENT, LLC	282,891	$4.0M	0.1%	—	—
16	CenterBook Partners LP	216,574	$3.0M	0.2%	—	—
17	HighVista Strategies LLC	213,212	$3.0M	0.8%	—	—
18	MARSHALL WACE, LLP	91,108	$1.3M	0.0%	—	—
19	Trexquant Investment LP	69,808	$981,500	0.0%	—	—
20	AdvisorShares Investments LLC	67,034	$942,498	0.2%	—	—
21	CITADEL ADVISORS LLC	65,464	$920,424	0.0%	—	—
22	PARAMETRIC PORTFOLIO ASSOCIATES LLC	46,417	$849,000	0.0%	—	—
23	XTX Topco Ltd	52,090	$732,385	0.0%	—	—
24	BlackRock Inc.	60,466	$705,034	0.0%	—	—
25	GOLDMAN SACHS GROUP INC	44,795	$629,818	0.0%	—	—

Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.