Ambarella, Inc. (AMBA) has 20 known insider and institutional holders on record. The largest holder is Kohn Leslie with 977,428 shares. Other notable holders include Wang Feng-Ming and Ju Chi-Hong.
Over the last 12 months, insiders have made 55 transactions in AMBA stock — 16 buys (valued at RSU Award) and 30 sells (valued at $7.05M). Insider selling has exceeded buying during this period.
AMBA Insider Ownership
Top Holder
Kohn Leslie
977,428 shares
Buys (12 mo)
16
$0.00 value
Sells (12 mo)
30
$7.05M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Kohn Leslie |
Chief Technology Officer |
977,428 |
2025-09-19 |
|
| 2 |
Wang Feng-ming |
CEO |
846,644 |
2026-03-19 |
|
| 3 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
170,096 |
2026-03-19 |
|
| 4 |
Lee Chan W |
Chief Operations Officer |
163,690 |
2026-03-19 |
|
| 5 |
Young John Alexander |
CFO |
122,632 |
2026-03-19 |
|
| 6 |
Verhalen Andrew W |
Director |
83,734 |
2023-09-01 |
|
| 7 |
Chen Yun-lung |
VP, Business Development and M |
76,371 |
2026-03-19 |
|
| 8 |
White Brian C |
CFO |
74,140 |
2023-12-21 |
|
| 9 |
Paisley Christopher B |
Director |
41,279 |
2025-12-29 |
|
| 10 |
Hon Hsiao-wuen |
Director |
30,776 |
2025-09-04 |
|
| 11 |
Hu Chenming |
Director |
29,516 |
2025-09-04 |
|
| 12 |
Day Christopher |
VP, Marketing |
15,099 |
2025-06-20 |
|
| 13 |
De Greef-safft Anne |
Director |
10,772 |
2024-08-30 |
|
| 14 |
Schwarting Elizabeth M |
Director |
6,690 |
2025-12-18 |
|
| 15 |
Breithaupt Chantelle Yvette |
Director |
4,940 |
2025-09-04 |
|
| 16 |
Eichler Kevin C |
CFO |
4,109 |
2022-03-18 |
|
| 17 |
Richardson David Jeffrey |
Director |
2,498 |
2025-12-17 |
|
| 18 |
Bryant Gregory M |
Director |
2,457 |
2026-03-04 |
|
| 19 |
Meng Teresa H |
Director |
754 |
2022-03-18 |
|
| 20 |
Goldman Sachs Group Inc |
10 Percent Owner |
37 |
2020-06-12 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-19 |
Young John Alexander |
CFO |
Informative Sell |
3,038 |
$54.14 |
$164.48K |
| 2026-03-18 |
Young John Alexander |
CFO |
RSU Award |
5,560 |
- |
- |
| 2026-03-17 |
Young John Alexander |
CFO |
Option Exercise (Sell) |
3,556 |
- |
- |
| 2026-03-19 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
Informative Sell |
2,155 |
$54.14 |
$116.67K |
| 2026-03-18 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
RSU Award |
5,930 |
- |
- |
| 2026-03-17 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
Option Exercise (Sell) |
9,553 |
- |
- |
| 2026-03-19 |
Lee Chan W |
Chief Operations Officer |
Informative Sell |
3,641 |
$54.14 |
$197.12K |
| 2026-03-18 |
Lee Chan W |
Chief Operations Officer |
RSU Award |
7,320 |
- |
- |
| 2026-03-17 |
Lee Chan W |
Chief Operations Officer |
Option Exercise (Sell) |
13,678 |
- |
- |
| 2026-03-18 |
Chen Yun-lung |
VP, Business Development and M |
RSU Award |
2,849 |
- |
- |
| 2026-03-17 |
Chen Yun-lung |
VP, Business Development and M |
Option Exercise (Sell) |
4,651 |
- |
- |
| 2026-03-19 |
Wang Feng-ming |
CEO |
Informative Sell |
8,083 |
$54.14 |
$437.61K |
| 2026-03-18 |
Wang Feng-ming |
CEO |
RSU Award |
15,686 |
- |
- |
| 2026-03-17 |
Wang Feng-ming |
CEO |
Option Exercise (Sell) |
27,598 |
- |
- |
| 2026-03-02 |
Young John Alexander |
CFO |
RSU Award |
15,201 |
- |
- |
| 2026-03-02 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
RSU Award |
17,329 |
- |
- |
| 2026-03-02 |
Lee Chan W |
Chief Operations Officer |
RSU Award |
24,701 |
- |
- |
| 2026-03-02 |
Bryant Gregory M |
Director |
RSU Award |
2,457 |
- |
- |
| 2026-02-23 |
Bryant Gregory M |
Director |
Unknown |
- |
- |
- |
| 2026-03-02 |
Chen Yun-lung |
VP, Business Development and M |
RSU Award |
7,220 |
- |
- |
| 2026-03-02 |
Wang Feng-ming |
CEO |
Option Exercise (Sell) |
50,000 |
$41.36 |
$2.07M |
| 2025-12-30 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
Informative Sell |
7,945 |
$70.25 |
$558.14K |
| 2026-01-05 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
Informative Sell |
7,728 |
$75.58 |
$584.11K |
| 2025-12-30 |
Ju Chi-hong |
Senior VP, Systems & GM, Asia |
Informative Sell |
3,765 |
$70.32 |
$264.75K |
| 2025-12-26 |
Paisley Christopher B |
Director |
Informative Sell |
500 |
$72.18 |
$36.09K |
