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GH Research GHRS

US equityMarket cap rank #2967
$22.17 −$0.77 (-3.36%)
Market closed · Oct 5, 10:20 pm ET · Last extended-hours $22.17 0.00%
Open$23.00
Prev close$22.94
Day range$21.86 – $23.00
Volume207.0K
Market cap$1.52B
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership71.2%-4.07 pts vs. prior quarter
Institutions holding72+0 vs. prior quarter
Insider trades (recent)4 buys / 0 sellsNet buying
Short interest3.94% of floatDays to cover 14.3 · as of 15 Sep 2026
Short-sale volume share10.1%5-day average of daily volume

Short-sale volume as % of daily volume

6%9%13%16%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$3.20M (8 inflow days, 12 outflow days).

The five largest holders on file together own 70.9% of shares outstanding.

Largest holders

  • Florian Schonharting21.60%
  • Lynx1 Capital Management LP19.32%
  • BVF Partners L.P.12.60%
  • FMR8.71%
  • RTW Investments, LP8.64%
  • RA Capital Management, L.P.7.13%
  • Deep Track Capital, LP4.86%
  • Avoro Capital Advisors LLC2.62%

By investor type

  • Mutual Fund30.04%
  • Hedge Fund25.93%
  • Individual/Insider24.46%
  • VC/PE Fund13.36%
  • Public Company1.38%
  • Private Company0.49%
  • Family Office/Trust0.00%

Reported short interest has risen from 2.82% to 3.94% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 2,702,630 3.9% 14.3
31 Aug 2026 3,081,748 4.5% 18.5
14 Aug 2026 3,144,599 4.6% 7.0
31 Jul 2026 2,529,977 3.7% 7.3
15 Jul 2026 1,945,918 2.8% 10.5
30 Jun 2026 1,937,477 2.8% 6.6

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