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Kiniksa Pharmaceuticals International KNSA

US equityMarket cap rank #1916
$76.31 +$0.52 (+0.69%)
Market closed · Oct 5, 8:20 pm ET · Last extended-hours $76.31 0.00%
Open$75.97
Prev close$75.79
Day range$75.29 – $76.79
Volume391.5K
Market cap$5.95B
P/E (TTM)77.1
Dividend yield–

Ownership & positioning

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

Short interest4.97% of floatDays to cover 7.2 · as of 15 Sep 2026
Short-sale volume share12.1%5-day average of daily volume

Short-sale volume as % of daily volume

8%15%21%28%Sep '26Sep '26Oct '26

Reported short interest has fallen from 5.40% to 4.97% 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 3,876,769 5.0% 7.2
31 Aug 2026 3,788,699 4.9% 8.7
14 Aug 2026 4,283,628 5.5% 9.6
31 Jul 2026 4,316,859 5.5% 5.0
15 Jul 2026 4,510,188 5.9% 6.9
30 Jun 2026 4,154,751 5.4% 2.9

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