NASDAQ
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Ambarella, Inc. (AMBA) has had 14 insider transactions recently, with net insider activity of -$71K (net selling). The most active insider is Wang Feng-Ming (Director, officer: ceo).
Total Transactions
14
1 buys /13 sells
Shares Acquired
400
Transactions: 1•Avg: 400
Shares Disposed
71,332
Transactions: 13•Avg: 5,487.08
Net Activity
-70,932
Net Selling•Ratio: 7.69%
Q2 2026(Current) | 400 | 71,332 | -70,932 | 7.69% |
Q1 2026 | 384,146 | 218,692 | +165,454 | 110.00% |
Q4 2025 | 2,531 | 59,310 | -56,779 | 7.14% |
Q3 2025 | 14,988 | 21,350 | -6,362 | 100.00% |
Q2 2025 | 0 | 12,878 | -12,878 | 0.00% |
This table shows insider trading activity by quarter. A ratio > 100% indicates insiders acquired more shares than they disposed of during the period, which is generally considered a bullish signal.
• Most recent data for Q2 2026
Acquired vs Disposed Shares
Net Distribution: 70,932 shares•Acquired/Disposed Ratio: 7.69%
Net Activity | |||||
|---|---|---|---|---|---|
WF Wang Feng-Ming | Director, officer: ceo | 24 | 199,690 | 236,110 | -36,420 |
LCW Lee Chan W | Officer: chief operations officer | 12 | 70,400 | 34,421 | +35,979 |
YJA Young John Alexander | Officer: cfo | 19 | 44,555 | 32,449 | +12,106 |
KL Kohn Leslie | Director, officer: chief technology officer | 3 | 0 | 5,548 | -5,548 |
JC Ju Chi-Hong | Officer: senior vp, systems & gm | 17 | 50,141 | 53,757 | -3,616 |
This table shows the trading activity of the most active company insiders. Positive net activity (buying more than selling) is often considered a bullish signal.
2026-06-17 | Officer: cfo | Sale | 3,186 | $67.87 | $216,233.82 | 114,437 | |
2026-06-17 | Officer: cfo | Sale | 1,847 | $66.98 | $123,712.06 | 112,590 | |
2026-06-17 | Officer: chief operations officer | Sale | 2,951 | $67.87 | $200,284.37 | 157,098 | |
2026-06-17 | Officer: senior vp, systems & gm | Sale | 2,017 | $67.87 | $136,893.79 | 165,924 | |
2026-06-17 | Director, officer: ceo | Sale | 6,204 | $67.87 | $421,065.48 | 799,857 |
This table displays recent Form 4 filings showing transactions by company insiders. SEC rules require insiders to report their transactions within two business days.
YJA Young John Alexander | Officer: cfo | Jun 18, 2026 | |
YJA Young John Alexander | Officer: cfo | Jun 18, 2026 | |
LCW Lee Chan W | Officer: chief operations officer | Jun 18, 2026 | |
JC Ju Chi-Hong | Officer: senior vp, systems & gm | Jun 18, 2026 | |
WF Wang Feng-Ming | Director, officer: ceo | Jun 18, 2026 |
Net change in shares shown on right