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Waystar Holding WAY

US equityMarket cap rank #2099
$26.48 +$1.67 (+6.73%)
Market closed · Oct 5, 10:20 pm ET · Last extended-hours $26.48 0.00%
Open$25.03
Prev close$24.81
Day range$24.63 – $26.63
Volume3.53M
Market cap$5.08B
P/E (TTM)37.8
Dividend yield–

Ownership & positioning

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

Institutional ownership113.9%+2.71 pts vs. prior quarter
Institutions holding357-2 vs. prior quarter
Insider trades (recent)22 buys / 25 sellsNet selling
Short interest7.91% of floatDays to cover 7.5 · as of 15 Sep 2026
Short-sale volume share27.8%5-day average of daily volume

Short-sale volume as % of daily volume

16%21%27%32%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$767.1K (11 inflow days, 9 outflow days).

The five largest holders on file together own 49.6% of shares outstanding.

Largest holders

  • Eqt Fund Management S.à R.L.12.98%
  • FMR10.24%
  • Canada Pension Plan Investment Board9.92%
  • BlackRock9.09%
  • Bain Capital, LP7.37%
  • Advent International, L.P.5.77%
  • Vanguard Portfolio Management, LLC3.46%
  • GoldenTree Asset Management LP3.21%

By investor type

  • Mutual Fund60.46%
  • VC/PE Fund26.39%
  • Hedge Fund10.87%
  • Government Pension Fund10.53%
  • Public Company3.02%
  • Individual/Insider1.19%
  • Private Company1.10%
  • Insurance Company0.99%

Reported short interest has risen from 6.74% to 7.91% 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 15,171,764 7.9% 7.5
31 Aug 2026 14,115,602 7.4% 6.1
14 Aug 2026 13,638,970 7.1% 4.5
31 Jul 2026 14,585,787 7.6% 5.0
15 Jul 2026 13,593,276 7.1% 5.0
30 Jun 2026 12,929,530 6.7% 4.0

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