NasdaqHealth CarePharmaceutical PreparationsDUBLIN 2, Ireland

GH Research PLC GHRS

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Estimated market cap $1.18B62.03M shares, shares as of Dec 31, 2025CIK 1855129

Insider trades, 12 mo

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No open-market trades

Congress trades, 24 mo

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No disclosed trades

13F holders, Q3 2026

15 added · 12 trimmed

13F holders

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Lobbying, 12 mo

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No lobbying filings

Federal contracts, 12 mo

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None matched

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Latest 10-Q

What changed in GH Research PLC's latest quarterly report, compared with the one before.

We have not read a recent 10-Q for this company yet.

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No recent insider purchases or sales for this company.

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

10.85M shares

46 funds report GHRS. Values checked against market prices.

Funds own 83% of shares (Q2 2026)

63 funds hold the stock.

Q3 2026: 17% · 5,560 of ~8,900 funds reported so far

Q2 202570%
Q3 202572%
Q4 202575%
Q1 202677%
Q2 202683%
Q3 2026 (so far)17%

Q3 2026. 11 new, 15 added to, 12 trimmed, 28 exited since Q2 2026.

Top 13F holders
#
1	FMR LLC 13F ↗	6.48M	$152.2M	+8.5%
2	Siren, LLC 13F ↗	600,000	$14.1M	New
3	BlackRock, Inc. 13F ↗	529,077	$12.4M	+10.2%
4	Eventide Asset Management, LLC 13F ↗	475,000	$11.2M	New
5	Manufacturers Life Insurance Company, the 13F ↗	428,556	$10.1M	New
6	Jefferies Financial Group Inc. 13F ↗	362,361	$8.5M	-49.1%
7	UBS Group AG 13F ↗	348,858	$8.2M	-26.9%
8	Bank of New York Mellon Corp 13F ↗	290,961	$6.8M	New
9	Qube Research & Technologies Ltd 13F ↗	225,647	$5.3M	+413.4%
10	Morgan Stanley 13F ↗	180,328	$4.2M	+245.3%

Download CSV Every fund that holds GHRS, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What GH Research PLC and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What GH Research PLC and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q2 2021	34	—	27.59M	$593.7M
Q3 2021	30	-4	28.51M	$625.2M
Q4 2021	30	0	30.05M	$701.0M
Q1 2022	33	+3	32.24M	$589.6M
Q2 2022	35	+2	32.56M	$325.0M
Q3 2022	34	-1	32.21M	$374.2M
Q4 2022	32	-2	30.89M	$299.5M
Q1 2023	29	-3	33.97M	$271.4M
Q2 2023	34	+5	29.63M	$351.6M
Q3 2023	29	-5	29.00M	$291.5M
Q4 2023	35	+6	29.92M	$173.6M
Q1 2024	32	-3	30.16M	$321.5M
Q2 2024	28	-4	30.43M	$354.8M
Q3 2024	28	0	30.52M	$204.2M
Q4 2024	31	+3	30.70M	$214.9M
Q1 2025	36	+5	42.62M	$470.1M
Q2 2025	38	+2	43.58M	$531.2M
Q3 2025	47	+9	44.55M	$618.3M
Q4 2025	53	+6	46.56M	$591.4M
Q1 2026	54	+1	47.55M	$668.5M
Q2 2026	63	+9	51.50M	$1.4B
Q3 2026	46	-17	10.85M	$254.8M

Each point is a quarter-end, from Q2 2021 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (G3855L106). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2021) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes6 in 12 mo 8-K eventsNone in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesNone in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: GH Research PLC
Address: JOSHUA DAWSON HOUSE, DAWSON STREET, DUBLIN 2, Ireland D02 RY95
Phone: 353 1 437 8334
Fiscal year ends: Dec 31
Filer category: Accelerated filer, emerging growth company
Incorporated in: Ireland
Listed as: GHRS (Nasdaq)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$19.10+$0.61 (+3.30%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $18.07 · High $21.50Nov 13, 2026

Aug 13, 2026Low $18.07 · High $29.98Nov 13, 2026

Nov 13, 2025Low $12.49 · High $30.64Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.