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Biohaven BHVN

US equityMarket cap rank #2800
$12.97 +$0.10 (+0.78%)
Pre-market · Oct 6, 7:30 am ET · After hours $12.97 0.00%
Open$12.85
Prev close$12.87
Day range$12.45 – $13.31
Volume1.67M
Market cap$1.96B
P/E (TTM)–
Dividend yield–

Ownership & positioning

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

Institutional ownership94.7%+0.74 pts vs. prior quarter
Institutions holding339-1 vs. prior quarter
Insider trades (recent)37 buys / 9 sellsNet buying
Short interest13.54% of floatDays to cover 6.5 · as of 15 Sep 2026
Short-sale volume share23.2%5-day average of daily volume

Short-sale volume as % of daily volume

17%20%23%26%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$2.76M (11 inflow days, 9 outflow days).

The five largest holders on file together own 34.4% of shares outstanding.

Largest holders

  • BlackRock8.75%
  • Montanova Capital, LLC6.81%
  • Stifel Asset Management Corp.6.58%
  • John Childs6.54%
  • Janus Henderson Group plc5.68%
  • Woodline Partners LP5.07%
  • State Street Global Advisors4.60%
  • Infinitum Asset Management, LLC4.14%

By investor type

  • Mutual Fund48.06%
  • Hedge Fund35.23%
  • Individual/Insider10.94%
  • Private Company3.91%
  • Public Company3.83%
  • VC/PE Fund2.00%
  • Insurance Company0.90%
  • Government Pension Fund0.47%

Reported short interest has fallen from 13.60% to 13.54% 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 20,449,005 13.5% 6.5
31 Aug 2026 19,000,171 12.6% 4.8
14 Aug 2026 17,819,010 11.8% 10.4
31 Jul 2026 18,185,373 12.1% 9.3
15 Jul 2026 19,345,532 12.8% 7.5
30 Jun 2026 20,469,902 13.6% 4.2

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