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Overview
Smart money at a glance
Filings to Oct 7, 2026Net selling: insiders sold $1.5M and bought $0 on the open market in 90 days (SEC Form 4). Congress: no trades disclosed in 180 days.
- Company insidersSEC Form 4, last 90 days
- -$1.5M netNet selling
- CongressSTOCK Act, last 180 days
- NoneNo trades disclosed
- Big fundsSEC 13F, quarter ended Jun 30, 2026
- 1 added, 4 cutMore cutting
- Federal contractsUSAspending.gov, last 12 months
- No awardsNone on record
Market overview
Fundamentals Oct 7- Open
- $68.40
- 52-wk high
- $96.69
- High
- $69.48
- 52-wk low
- $48.30
- Low
- $67.05
- Prev close
- $68.65
- Mkt cap
- $3.01B
- Volume
- 1.10M
- Fwd P/E
- 84.8x
- Beta
- 2.38
- P/S
- 7.2x
- P/B
- 4.8x
- Profit margin
- -13.5%
- Op margin
- -7.5%
- ROE
- -9.4%
What do analysts expect?
Analyst target and ratings are on paid plans
See the 12-month consensus target and the buy/hold/sell rating split.
Unlock the full resultsQuestions about AMBA filings
Are insiders buying or selling Ambarella Inc (AMBA) stock?
Net selling: insiders sold $1.5M and bought $0 of AMBA stock on the open market in the 90 days to Oct 7, 2026, according to SEC Form 4 filings. $145K of the sales were made under pre-set Rule 10b5-1 trading plans. The largest was Chen, Yun-Lung (VP, Business Dev. & Marketing), who sold $469K. The latest filing was on Sep 28, 2026.
Which members of Congress have traded AMBA recently?
None. No member of Congress disclosed a AMBA trade with a trade date in the last 180 days, according to House and Senate STOCK Act filings.
How current is this AMBA smart-money data?
This summary uses filings available on Oct 7, 2026. Insiders must report trades to the SEC within 2 business days, members of Congress have up to 45 days to disclose a trade, and funds file 13F holdings up to 45 days after each quarter ends, so the latest moves may not be public yet.
Smart money
8 funds hold a position and insiders have been net selling.
What funds are doing
Buys/Adds (1)
- DS
D.E. Shaw
$31.6M
added
Sells/Trims (2)
- MI
Millennium
$74.3M
trimmed
- CI
Citadel
$48.0M
sold
What insiders are doing
How top traders are positioned
No tracked top-trader positions in AMBA right now.
Live Hyperliquid positioning - not every stock is covered
Earnings
Earnings came in 13.3% below what analysts expected.
Last report
Aug 27, 2026
Period ending
Jul 31, 2026
Earnings per share
-$0.30 expected
Revenue
No reported revenue on record
Previous reports
All values in USD| Period ending | Reported | EPS / estimate | EPS surprise | Revenue / estimate | Rev. surprise |
|---|---|---|---|---|---|
| Jul 31, 2026 | Aug 27, 2026 | -$0.34 / -$0.30Alpha Vantage | -13.33% miss | Unavailable | Unavailable |
| Apr 30, 2026 | May 28, 2026 | -$0.39 / -$0.39Alpha Vantage | +0.00% in line | Unavailable | Unavailable |
| Jan 31, 2026 | Feb 26, 2026 | -$0.35 / -$0.49Alpha Vantage | +28.57% beat | Unavailable | Unavailable |
| Oct 31, 2025 | Nov 25, 2025 | $0.27 / $0.21Alpha Vantage | +28.57% beat | Unavailable | Unavailable |
| Jul 31, 2025 | Aug 28, 2025 | $0.15 / $0.05Alpha Vantage | +$0.10 beat | Unavailable | Unavailable |
| Apr 30, 2025 | May 29, 2025 | $0.07 / $0.04Alpha Vantage | +$0.03 beat | Unavailable | Unavailable |
| Jan 31, 2025 | Feb 26, 2025 | $0.11 / -$0.02Alpha Vantage | +$0.13 beat | Unavailable | Unavailable |
| Oct 31, 2024 | Nov 26, 2024 | $0.11 / $0.04Alpha Vantage | +$0.07 beat | Unavailable | Unavailable |
EPS uses Yahoo Finance where available, then Alpha Vantage or verified release comparisons. Revenue uses company releases and saved estimates.
Reports Nov 24, 2026, in 48 days
Financials
Is the business strong?
This company is not yet profitable.
- Net margin
- -13.5%
- Forward P/E
- 84.75
- Market cap
- $3.0B
Valuation
- P/S7.21
- P/B4.81
Quality
- Operating margin-7.5%
- ROE-9.4%
- ROA-5.2%
Growth
- Beta2.38
Technicals
Price structure
This stock is in a strong uptrend.
Trend
Strong uptrend
80 / 100
RSI 14
20D volatility
52-week range
20D support
20D resistance
Returns
Price vs moving averages
Volume pace