AMBA
insider transactionsAMBARELLA INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-178.5K
0 buy · 178.5K sell
Net value · 365d
-$11.8M
$0 in · $11.8M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
26
0 buy · 178.5K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
CFO · 10b5-1
$123.7K
1.8K sh · $66.98
Own -2%
-
Sell·S
CFO · 10b5-1
$216.2K
3.2K sh · $67.87
Own -3%
-
Sell·S
Chief Operations Officer
$200.3K
3.0K sh · $67.87
Own -2%
-
Sell·S
Senior VP, Systems & GM
$136.9K
2.0K sh · $67.87
Own -1%
-
Other·G
Feng-Ming Wang KEY
CEO
$0
10.0K sh
Own -1%
-
Sell·S
Feng-Ming Wang KEY
CEO
$421.1K
6.2K sh · $67.87
Own -1%
-
Sell·S
VP, Business Development and
$660.9K
9.9K sh · $67.06
Own -13%
-
Exercise·M
CFO · 10b5-1
$0
400 sh
Own +2%
-
Sell·S
CFO · 10b5-1
$38.4K
400 sh · $96.00
Own -0%
-
Exercise·M
CFO · 10b5-1
$22.3K
400 sh · $55.80
Own +0%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$842.2K
9.2K sh · $92.05
Own -1%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$553.3K
6.1K sh · $91.23
Own -1%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$1.6M
17.3K sh · $90.38
Own -2%
-
Sell·S
CFO · 10b5-1
$118.3K
2.0K sh · $60.00
Own -2%
-
Sell·S
CFO
$164.5K
3.0K sh · $54.14
Own -2%
-
Sell·S
Chief Operations Officer
$197.1K
3.6K sh · $54.14
Own -2%
-
Sell·S
Senior VP, Systems & GM, Asia
$116.7K
2.2K sh · $54.14
Own -1%
-
Sell·S
Feng-Ming Wang KEY
CEO
$437.6K
8.1K sh · $54.14
Own -1%
-
Grant·A
CFO
$0
5.6K sh
Own +5%
-
Grant·A
VP, Business Development and M
$0
2.8K sh
Own +4%
-
Grant·A
Chief Operations Officer
$0
7.3K sh
Own +5%
-
Grant·A
Senior VP, Systems & GM, Asia
$0
5.9K sh
Own +4%
-
Grant·A
Feng-Ming Wang KEY
CEO
$0
15.7K sh
Own +2%
-
Exercise·M
CFO
$0
3.6K sh
Own New
-
Sell·S
CFO
$241.5K
4.6K sh · $52.77
Own -4%
-
Exercise·M
CFO
—
3.6K sh
Own +3%
-
Exercise·M
VP, Business Development and M
$0
4.7K sh
Own New
-
Exercise·M
VP, Business Development and M
—
4.7K sh
Own +7%
-
Exercise·M
Chief Operations Officer
$0
13.7K sh
Own New
-
Sell·S
Chief Operations Officer
$355.1K
6.7K sh · $52.77
Own -4%
-
Exercise·M
Chief Operations Officer
—
13.7K sh
Own +9%
-
Exercise·M
Senior VP, Systems & GM, Asia
$0
9.6K sh
Own New
-
Sell·S
Senior VP, Systems & GM, Asia
$249.5K
4.7K sh · $52.77
Own -3%
-
Exercise·M
Senior VP, Systems & GM, Asia
—
9.6K sh
Own +6%
-
Exercise·M
Feng-Ming Wang KEY
CEO
$0
27.6K sh
Own New
-
Sell·S
Feng-Ming Wang KEY
CEO
$1.0M
19.0K sh · $52.77
Own -2%
-
Exercise·M
Feng-Ming Wang KEY
CEO
—
27.6K sh
Own +3%
-
Grant·A
CFO
$0
15.2K sh
Own New
-
Grant·A
CFO
$0
15.2K sh
Own +15%
-
Grant·A
VP, Business Development and M
$0
7.2K sh
Own New
-
Grant·A
VP, Business Development and M
$0
7.2K sh
Own +12%
-
Grant·A
Chief Operations Officer
$0
24.7K sh
Own New
-
Grant·A
Chief Operations Officer
$0
24.7K sh
Own +20%
-
Grant·A
Senior VP, Systems & GM, Asia
$0
17.3K sh
Own New
-
Grant·A
Senior VP, Systems & GM, Asia
$0
17.3K sh
Own +12%
-
Grant·A
Feng-Ming Wang KEY
CEO · 10b5-1
$0
53.2K sh
Own New
-
Exercise·M
Feng-Ming Wang KEY
CEO · 10b5-1
$0
50.0K sh
Own New
-
Grant·A
Feng-Ming Wang KEY
CEO · 10b5-1
$0
53.2K sh
Own +7%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$739.5K
12.0K sh · $61.42
Own -2%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$2.0M
32.5K sh · $60.91
Own -4%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$154.8K
2.6K sh · $59.53
Own -0%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$111.7K
1.9K sh · $58.77
Own -0%
-
Sell·S
Feng-Ming Wang KEY
CEO · 10b5-1
$56.8K
1.0K sh · $56.83
Own -0%
-
Exercise·M
Feng-Ming Wang KEY
CEO · 10b5-1
$2.1M
50.0K sh · $41.36
Own +7%
-
Grant·A
Director
$0
2.5K sh
Own New
-
Sell·S
Senior VP, Systems & GM, Asia
$584.1K
7.7K sh · $75.58
Own -5%
-
Sell·S
Senior VP, Systems & GM, Asia
$558.1K
7.9K sh · $70.25
Own -5%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 17, 2026 | John Alexander Young KEY 10b5-1 | Sell S | 1.8K | $123.7K |
| Jun 17, 2026 | John Alexander Young KEY 10b5-1 | Sell S | 3.2K | $216.2K |
| Jun 17, 2026 | Chan W Lee | Sell S | 3.0K | $200.3K |
| Jun 17, 2026 | Chi-Hong Ju | Sell S | 2.0K | $136.9K |
| Jun 17, 2026 | Feng-Ming Wang KEY | Other G | 10.0K | $0 |
| Jun 17, 2026 | Feng-Ming Wang KEY | Sell S | 6.2K | $421.1K |
| Jun 12, 2026 | Yun-Lung Chen | Sell S | 9.9K | $660.9K |
| May 26, 2026 | John Alexander Young KEY 10b5-1 | Exercise M | 400 | $0 |
| May 26, 2026 | John Alexander Young KEY 10b5-1 | Sell S | 400 | $38.4K |
| May 26, 2026 | John Alexander Young KEY 10b5-1 | Exercise M | 400 | $22.3K |
| May 26, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 9.2K | $842.2K |
| May 26, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 6.1K | $553.3K |
| May 26, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 17.3K | $1.6M |
| Apr 21, 2026 | John Alexander Young KEY 10b5-1 | Sell S | 2.0K | $118.3K |
| Mar 19, 2026 | John Alexander Young KEY | Sell S | 3.0K | $164.5K |
| Mar 19, 2026 | Chan W Lee | Sell S | 3.6K | $197.1K |
| Mar 19, 2026 | Chi-Hong Ju | Sell S | 2.2K | $116.7K |
| Mar 19, 2026 | Feng-Ming Wang KEY | Sell S | 8.1K | $437.6K |
| Mar 18, 2026 | John Alexander Young KEY | Grant A | 5.6K | $0 |
| Mar 18, 2026 | Yun-Lung Chen | Grant A | 2.8K | $0 |
| Mar 18, 2026 | Chan W Lee | Grant A | 7.3K | $0 |
| Mar 18, 2026 | Chi-Hong Ju | Grant A | 5.9K | $0 |
| Mar 18, 2026 | Feng-Ming Wang KEY | Grant A | 15.7K | $0 |
| Mar 17, 2026 | John Alexander Young KEY | Exercise M | 3.6K | $0 |
| Mar 17, 2026 | John Alexander Young KEY | Sell S | 4.6K | $241.5K |
| Mar 17, 2026 | John Alexander Young KEY | Exercise M | 3.6K | — |
| Mar 17, 2026 | Yun-Lung Chen | Exercise M | 4.7K | $0 |
| Mar 17, 2026 | Yun-Lung Chen | Exercise M | 4.7K | — |
| Mar 17, 2026 | Chan W Lee | Exercise M | 13.7K | $0 |
| Mar 17, 2026 | Chan W Lee | Sell S | 6.7K | $355.1K |
| Mar 17, 2026 | Chan W Lee | Exercise M | 13.7K | — |
| Mar 17, 2026 | Chi-Hong Ju | Exercise M | 9.6K | $0 |
| Mar 17, 2026 | Chi-Hong Ju | Sell S | 4.7K | $249.5K |
| Mar 17, 2026 | Chi-Hong Ju | Exercise M | 9.6K | — |
| Mar 17, 2026 | Feng-Ming Wang KEY | Exercise M | 27.6K | $0 |
| Mar 17, 2026 | Feng-Ming Wang KEY | Sell S | 19.0K | $1.0M |
| Mar 17, 2026 | Feng-Ming Wang KEY | Exercise M | 27.6K | — |
| Mar 2, 2026 | John Alexander Young KEY | Grant A | 15.2K | $0 |
| Mar 2, 2026 | John Alexander Young KEY | Grant A | 15.2K | $0 |
| Mar 2, 2026 | Yun-Lung Chen | Grant A | 7.2K | $0 |
| Mar 2, 2026 | Yun-Lung Chen | Grant A | 7.2K | $0 |
| Mar 2, 2026 | Chan W Lee | Grant A | 24.7K | $0 |
| Mar 2, 2026 | Chan W Lee | Grant A | 24.7K | $0 |
| Mar 2, 2026 | Chi-Hong Ju | Grant A | 17.3K | $0 |
| Mar 2, 2026 | Chi-Hong Ju | Grant A | 17.3K | $0 |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Grant A | 53.2K | $0 |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Exercise M | 50.0K | $0 |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Grant A | 53.2K | $0 |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 12.0K | $739.5K |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 32.5K | $2.0M |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 2.6K | $154.8K |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 1.9K | $111.7K |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Sell S | 1.0K | $56.8K |
| Mar 2, 2026 | Feng-Ming Wang KEY 10b5-1 | Exercise M | 50.0K | $2.1M |
| Mar 2, 2026 | Gregory M Bryant | Grant A | 2.5K | $0 |
| Jan 5, 2026 | Chi-Hong Ju | Sell S | 7.7K | $584.1K |
| Dec 30, 2025 | Chi-Hong Ju | Sell S | 7.9K | $558.1K |
About AMBA insider trading
This page tracks insider transactions for AMBARELLA INC (AMBA) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.