BeStock  
Stocks › AMBA

Ambarella AMBA

US equityMarket cap rank #2483Facial Recognition
$68.26 −$0.39 (-0.57%)
Pre-market · Oct 6, 7:30 am ET · After hours $68.45 +0.28%
Open$68.40
Prev close$68.65
Day range$67.05 – $69.48
Volume1.10M
Market cap$3.01B
P/E (TTM)–
Dividend yield–

Ownership & positioning

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

Institutional ownership82.9%-0.78 pts vs. prior quarter
Institutions holding424+0 vs. prior quarter
Insider trades (recent)21 buys / 29 sellsNet selling
Short interest12.93% of floatDays to cover 2.3 · as of 15 Sep 2026
Short-sale volume share19.1%5-day average of daily volume

Short-sale volume as % of daily volume

13%17%21%25%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$11.27M (8 inflow days, 12 outflow days).

The five largest holders on file together own 35.1% of shares outstanding.

Largest holders

  • BlackRock8.94%
  • Vanguard Portfolio Management, LLC8.36%
  • T. Rowe Price Group, Inc.7.05%
  • State Street Global Advisors5.81%
  • Vanguard Capital Management, LLC4.92%
  • Manulife Asset Management2.69%
  • Legal & General Investment Management2.53%
  • Geode Capital Management, LLC2.49%

By investor type

  • Mutual Fund71.77%
  • Hedge Fund6.54%
  • Individual/Insider4.53%
  • Public Company2.93%
  • Private Company0.58%
  • Insurance Company0.44%
  • Government Pension Fund0.35%
  • Family Office/Trust0.16%

Reported short interest has risen from 7.51% to 12.93% 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 5,707,297 12.9% 2.3
31 Aug 2026 4,364,091 9.9% 4.6
14 Aug 2026 4,070,707 9.3% 3.4
31 Jul 2026 5,154,890 11.8% 2.2
15 Jul 2026 3,945,513 9.0% 2.3
30 Jun 2026 3,295,313 7.5% 1.8

Discussion

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

Leave a comment

Scroll to Top