StockCIK 1280263
AMBARELLA INC (AMBA): Insider Trades and Fund Holdings
In the past 12 months, AMBARELLA INC insiders reported 0 open-market purchases worth $0 and 6 sales worth $1.06M; 2 of the sales were reported as made under a 10b5-1 trading plan.
0Insider buys, 12 months
$0Bought by insiders, 12 months
$1.06MSold by insiders, 12 months
1Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 28, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 28 | Christopher B. PaisleyDirector | ▼ SELL10b5-1 | $18K |
| Sep 21 | John Alexander YoungCFO | ▼ SELL10b5-1 | $128K |
| Sep 18 | Feng-Ming WangCEO | ▼ SELL | $395K |
| Sep 18 | John Alexander YoungCFO | ▼ SELL | $203K |
| Sep 18 | Chan W. LeeChief Operations Officer | ▼ SELL | $188K |
| Sep 18 | Chi-Hong JuVP | ▼ SELL | $130K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Christopher B. Paisley | Director | 0 | $0 | 1 | $18K |
| John Alexander Young | CFO | 0 | $0 | 2 | $330K |
| Feng-Ming Wang | CEO | 0 | $0 | 1 | $395K |
| Chan W. Lee | Chief Operations Officer | 0 | $0 | 1 | $188K |
| Chi-Hong Ju | VP | 0 | $0 | 1 | $130K |
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Tracked funds that report AMBA
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 110,300 | $9.46M | ▼ −44.7% |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →