BeStock  
Stocks › Biotechnology › RCUS

Arcus Biosciences RCUS

US equityMarket cap rank #2447Biotechnology
$24.74 +$0.30 (+1.23%)
Pre-market · Oct 6, 4:10 am ET · After hours $24.74 0.00%
Open$24.19
Prev close$24.44
Day range$24.11 – $24.95
Volume1.39M
Market cap$3.15B
P/E (TTM)–
Dividend yield–

Ownership & positioning

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

Institutional ownership98.4%+0.06 pts vs. prior quarter
Institutions holding289+2 vs. prior quarter
Insider trades (recent)22 buys / 28 sellsNet selling
Short interest10.85% of floatDays to cover 7.8 · as of 15 Sep 2026
Short-sale volume share20.4%5-day average of daily volume

Short-sale volume as % of daily volume

10%16%21%26%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: +$2.86M (11 inflow days, 9 outflow days).

The five largest holders on file together own 50.7% of shares outstanding.

Largest holders

  • Gilead Sciences, Inc.24.68%
  • BlackRock12.89%
  • State Street Global Advisors4.74%
  • Wellington Management Group4.63%
  • Montanova Capital, LLC3.75%
  • Vanguard Capital Management, LLC3.54%
  • Vanguard Portfolio Management, LLC3.51%
  • FMR3.18%

By investor type

  • Mutual Fund49.24%
  • Public Company26.87%
  • Hedge Fund17.62%
  • Individual/Insider3.61%
  • VC/PE Fund2.76%
  • Private Company0.87%
  • Government Pension Fund0.77%
  • Insurance Company0.21%

Reported short interest has risen from 10.05% to 10.85% 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 13,812,606 10.8% 7.8
31 Aug 2026 13,076,244 10.3% 11.0
14 Aug 2026 13,848,822 10.9% 12.3
31 Jul 2026 13,118,220 10.4% 11.6
15 Jul 2026 12,559,230 10.0% 12.9
30 Jun 2026 12,644,286 10.1% 5.9

Discussion

No comments yet — be the first to weigh in on RCUS.

Leave a comment

Scroll to Top