Key facts
- AMBA - AMBARELLA INC has 19 insiders with reported activity on this page.
- Net insider value flow over the last year: -$12,054,921.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 19 Insiders of AMBARELLA INC
- Symbol
- AMBA on Nasdaq
- Location
- Santa Clara, CA
Change
- Buy value: ; sell value: $12,054,921.
- Net share flow: -187,634.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$12,054,921.
Buys
$0
Shares: 0
Insiders: 0
Sells
$12,054,921
Shares: 187,634
Insiders: 9
Net
-$12,054,921
Shares: -187,634
Insiders: -9
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 103,899 | $0 | $5,921,708 | -$5,921,708 |
| 3-6 | 0 | 35,630 | $0 | $2,574,755 | -$2,574,755 |
| 6-9 | 0 | 35,227 | $0 | $2,875,133 | -$2,875,133 |
| 9-12 | 0 | 12,878 | $0 | $683,324 | -$683,324 |
AMBARELLA INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Leslie Kohn | Chief Technology Officer, Director | $77,637,106 | -$268,264 | -0.34% | Filing P/S | 17 Sep 2025 |
| Feng-Ming Wang | CEO, Director | $45,399,692 | -$5,470,369 | -11% | Filing P/S | 17 Mar 2026 |
| Chi-Hong Ju | Senior VP, Systems & GM, Asia | $9,627,285 | -$2,929,761 | -23% | Mixed | 17 Mar 2026 |
| Chan W. Lee | Chief Operations Officer | $8,665,052 | -$963,330 | -10% | Filing P/S | 17 Mar 2026 |
| John Alexander Young | Cfo | $7,057,380 | -$1,317,151 | -16% | Filing P/S | 21 Apr 2026 |
| Andrew W. Verhalen | Director | $6,117,572 | Mixed | 31 Aug 2023 | ||
| Yun-Lung Chen | VP, Business Development and M | $5,106,928 | -$716,895 | -12% | Mixed | 17 Mar 2026 |
| Brian C. White | Cfo | $4,681,200 | Mixed | 19 Dec 2023 | ||
| Kevin C. Eichler | Cfo | $4,625,573 | Mixed | 16 Mar 2022 | ||
| Christopher B. Paisley | Director | $2,979,518 | -$98,670 | -3.2% | Filing P/S | 26 Dec 2025 |
| David Jeffrey Richardson | Director | $2,438,622 | Mixed | 15 Dec 2025 | ||
| Hsiao-Wuen Hon | Director | $1,935,502 | Mixed | 02 Sep 2025 | ||
| Chenming Hu | Director | $1,856,261 | Mixed | 02 Sep 2025 | ||
| Christopher Day | VP, Marketing | $789,073 | -$17,873 | -2.2% | Filing P/S | 17 Jun 2025 |
| Anne de Greef-Safft | Director | $664,202 | Mixed | 29 Aug 2024 | ||
| Elizabeth M. Schwarting | Director | $484,202 | -$272,608 | -36% | Filing P/S | 16 Dec 2025 |
| Teresa H. Meng | Director | $417,103 | Mixed | 16 Mar 2022 | ||
| Chantelle Yvette Breithaupt | Director | $310,676 | Mixed | 02 Sep 2025 | ||
| Gregory M. Bryant | Director | $164,299 | Mixed | 02 Mar 2026 |
Top shareholders of AMBARELLA INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
|
Vanguard Portfolio Management · Company |
8.6%
|
3,752,800
|
$193,175,380 | $0 | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
7.3%
from 13D/G
|
3,789,215
|
$195,049,857 | — | 31 Mar 2026 | |
| Feng-Ming Wang |
3/4/5
|
CEO, Director |
1.9%
|
838,561
|
$45,399,692 | -$5,470,369 | 17 Mar 2026 | |
| Chi-Hong Ju |
3/4/5
|
Senior VP, Systems & GM, Asia |
0.4%
|
175,941
|
$9,627,285 | -$2,929,761 | 17 Mar 2026 | |
| Chan W. Lee |
3/4/5
|
Chief Operations Officer |
0.37%
|
160,049
|
$8,665,052 | -$963,330 | 17 Mar 2026 | |
| John Alexander Young |
3/4/5
|
CFO |
0.27%
|
117,623
|
$7,057,380 | -$1,317,151 | 21 Apr 2026 | |
| Yun-Lung Chen |
3/4/5
|
VP, Business Development and M |
0.17%
|
76,371
|
$5,106,928 | -$716,895 | 17 Mar 2026 | |
| Christopher B. Paisley |
3/4/5
|
Director |
0.09%
|
41,279
|
$2,979,518 | -$98,670 | 26 Dec 2025 | |
| Hsiao-Wuen Hon |
3/4/5
|
Director |
0.07%
|
30,776
|
$1,935,502 | — | 02 Sep 2025 | |
| Chenming Hu |
3/4/5
|
Director |
0.07%
|
29,516
|
$1,856,261 | — | 02 Sep 2025 | |
| David Jeffrey Richardson |
3/4/5
|
Director |
0.06%
|
28,310
|
$2,438,622 | — | 15 Dec 2025 | |
| Christopher Day |
3/4/5
|
VP, Marketing |
0.03%
|
15,099
|
$789,073 | -$17,873 | 17 Jun 2025 | |
| Elizabeth M. Schwarting |
3/4/5
|
Director |
0.02%
|
6,690
|
$484,202 | -$272,608 | 16 Dec 2025 | |
| Chantelle Yvette Breithaupt |
3/4/5
|
Director |
0.01%
|
4,940
|
$310,676 | — | 02 Sep 2025 | |
| Gregory M. Bryant |
3/4/5
|
Director |
0.01%
|
2,457
|
$164,299 | — | 02 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
4.5%
|
1,976,464
|
$101,738,485 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
4.1%
|
1,814,603
|
$93,406,689 | — | 31 Mar 2026 | |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE |
13F
|
Company |
3.6%
|
1,586,082
|
$81,643,571 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
3.5%
|
1,512,539
|
$77,857,945 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.4%
|
1,029,229
|
$52,989,656 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
2.2%
|
952,315
|
$49,021,000 | — | 31 Mar 2026 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
2.1%
|
931,862
|
$47,967,596 | — | 31 Mar 2026 | |
| Legal & General Group Plc |
13F
|
Company |
2.1%
|
926,396
|
$47,686,233 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
1.7%
|
724,655
|
$37,301,706 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.5%
|
638,587
|
$32,866,366 | — | 31 Mar 2026 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
1.4%
|
600,506
|
$30,911,046 | — | 31 Mar 2026 | |
| EXCHANGE TRADED CONCEPTS, LLC |
13F
|
Company |
1.3%
|
571,580
|
$29,422,081 | — | 31 Mar 2026 | |
| FIFTHDELTA Ltd |
13F
|
Company |
1.2%
|
546,538
|
$28,133,044 | — | 31 Mar 2026 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
1.2%
|
541,901
|
$27,724,778 | — | 31 Mar 2026 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
1.2%
|
521,211
|
$26,829,339 | — | 31 Mar 2026 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.1%
|
495,815
|
$25,522,082 | — | 31 Mar 2026 | |
| Nuveen, LLC |
13F
|
Company |
1.1%
|
487,820
|
$25,110,534 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.1%
|
481,758
|
$24,798,492 | — | 31 Mar 2026 | |
| Stephens Investment Management Group LLC |
13F
|
Company |
1.1%
|
475,141
|
$24,457,884 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.1%
|
473,762
|
$23,048,521 | — | 31 Mar 2026 | |
| Squarepoint Ops LLC |
13F
|
Company |
1.1%
|
460,580
|
$23,708,356 | — | 31 Mar 2026 | |
| PINNACLE ASSOCIATES LTD |
13F
|
Company |
0.98%
|
430,249
|
$22,147,067 | — | 31 Mar 2026 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
0.93%
|
409,220
|
$21,065,000 | — | 31 Mar 2026 | |
| Handelsbanken Fonder AB |
13F
|
Company |
0.91%
|
396,690
|
$20,420,000 | — | 31 Mar 2026 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.88%
|
384,796
|
$19,807,374 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.86%
|
374,780
|
$19,291,800 | — | 31 Mar 2026 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
0.83%
|
364,429
|
$18,758,983 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.83%
|
363,291
|
$18,700,405 | — | 31 Mar 2026 | |
| Woodline Partners LP |
13F
|
Company |
0.8%
|
349,479
|
$17,989,432 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.72%
|
314,046
|
$16,165,518 | — | 31 Mar 2026 | |
| FMR LLC |
13F
|
Company |
0.69%
|
302,337
|
$15,562,815 | — | 31 Mar 2026 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
0.67%
|
295,185
|
$15,194,648 | — | 31 Mar 2026 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.66%
|
289,849
|
$14,919,978 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.65%
|
284,289
|
$14,633,776 | — | 31 Mar 2026 | |
| HAWK RIDGE CAPITAL MANAGEMENT LP |
13F
|
Company |
0.63%
|
276,100
|
$14,212,248 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for AMBARELLA INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| John Alexander Young | AMBA | Ordinary Shares | Sale | -1.65% | $118,260 | $60.00 | -1,971 | 117,623 | 21 Apr 2026 | Direct |
| John Alexander Young | AMBA | Ordinary Shares | Sale | -2.48% | $164,477 | $54.14 | -3,038 | 119,594 | 19 Mar 2026 | Direct |
| Chan W. Lee | AMBA | Ordinary Shares | Sale | -2.22% | $197,124 | $54.14 | -3,641 | 160,049 | 19 Mar 2026 | Direct |
| Chi-Hong Ju | AMBA | Ordinary Shares | Sale | -1.27% | $116,672 | $54.14 | -2,155 | 167,941 | 19 Mar 2026 | Direct |
| Feng-Ming Wang | AMBA | Ordinary Shares | Sale | -0.95% | $437,614 | $54.14 | -8,083 | 838,561 | 19 Mar 2026 | Direct |
| John Alexander Young | AMBA | Ordinary Shares | Award | 4.75% | 5,560 | 122,632 | 18 Mar 2026 | Direct | ||
| Yun-Lung Chen | AMBA | Ordinary Shares | Award | 3.88% | 2,849 | 76,371 | 18 Mar 2026 | Direct | ||
| Chan W. Lee | AMBA | Ordinary Shares | Award | 4.68% | 7,320 | 163,690 | 18 Mar 2026 | Direct | ||
| Chi-Hong Ju | AMBA | Ordinary Shares | Award | 3.61% | 5,930 | 170,096 | 18 Mar 2026 | Direct | ||
| Feng-Ming Wang | AMBA | Ordinary Shares | Award | 1.89% | 15,686 | 846,644 | 18 Mar 2026 | Direct | ||
| John Alexander Young | AMBA | Ordinary Shares | Sale | -3.76% | $241,528 | $52.77 | -4,577 | 117,072 | 17 Mar 2026 | Direct |
| John Alexander Young | AMBA | Ordinary Shares | Options Exercise | 3.01% | 3,556 | 121,649 | 17 Mar 2026 | Direct | ||
| John Alexander Young | AMBA | Performance Stock Units | Options Exercise | -100% | -3,556 | 0 | 17 Mar 2026 | Direct | ||
| Yun-Lung Chen | AMBA | Ordinary Shares | Options Exercise | 6.75% | 4,651 | 73,522 | 17 Mar 2026 | Direct | ||
| Yun-Lung Chen | AMBA | Performance Stock Units | Options Exercise | -100% | -4,651 | 0 | 17 Mar 2026 | Direct | ||
| Chan W. Lee | AMBA | Ordinary Shares | Sale | -4.13% | $355,089 | $52.77 | -6,729 | 156,370 | 17 Mar 2026 | Direct |
| Chan W. Lee | AMBA | Ordinary Shares | Options Exercise | 9.15% | 13,678 | 163,099 | 17 Mar 2026 | Direct | ||
| Chan W. Lee | AMBA | Performance Stock Units | Options Exercise | -100% | -13,678 | 0 | 17 Mar 2026 | Direct | ||
| Chi-Hong Ju | AMBA | Ordinary Shares | Sale | -2.8% | $249,549 | $52.77 | -4,729 | 164,166 | 17 Mar 2026 | Direct |
| Chi-Hong Ju | AMBA | Ordinary Shares | Options Exercise | 6% | 9,553 | 168,895 | 17 Mar 2026 | Direct | ||
| Chi-Hong Ju | AMBA | Performance Stock Units | Options Exercise | -100% | -9,553 | 0 | 17 Mar 2026 | Direct | ||
| Feng-Ming Wang | AMBA | Ordinary Shares | Sale | -2.23% | $1,001,364 | $52.77 | -18,976 | 830,958 | 17 Mar 2026 | Direct |
| Feng-Ming Wang | AMBA | Ordinary Shares | Options Exercise | 3.36% | 27,598 | 849,934 | 17 Mar 2026 | Direct | ||
| Feng-Ming Wang | AMBA | Performance Stock Units | Options Exercise | -100% | -27,598 | 0 | 17 Mar 2026 | Direct | ||
| John Alexander Young | AMBA | Ordinary Shares | Award | 14.8% | 15,201 | 117,939 | 02 Mar 2026 | Direct | ||
| John Alexander Young | AMBA | Performance Stock Units | Award | 15,201 | 15,201 | 02 Mar 2026 | Direct | |||
| Yun-Lung Chen | AMBA | Ordinary Shares | Award | 11.7% | 7,220 | 68,871 | 02 Mar 2026 | Direct | ||
| Yun-Lung Chen | AMBA | Performance Stock Units | Award | 7,220 | 7,220 | 02 Mar 2026 | Direct | |||
| Chan W. Lee | AMBA | Ordinary Shares | Award | 19.8% | 24,701 | 149,267 | 02 Mar 2026 | Direct | ||
| Chan W. Lee | AMBA | Performance Stock Units | Award | 24,701 | 24,701 | 02 Mar 2026 | Direct | |||
| Chi-Hong Ju | AMBA | Ordinary Shares | Award | 12.2% | 17,329 | 159,188 | 02 Mar 2026 | Direct | ||
| Chi-Hong Ju | AMBA | Performance Stock Units | Award | 17,329 | 17,329 | 02 Mar 2026 | Direct | |||
| Feng-Ming Wang | AMBA | Ordinary Shares | Award | 6.92% | 53,203 | 822,182 | 02 Mar 2026 | Direct | ||
| Feng-Ming Wang | AMBA | Ordinary Shares | Sale | -6.11% | $3,040,031 | $60.80 | -50,000 | 768,979 | 02 Mar 2026 | Direct |
| Feng-Ming Wang | AMBA | Ordinary Shares | Options Exercise | 6.5% | 50,000 | 818,979 | 02 Mar 2026 | Direct | ||
| Feng-Ming Wang | AMBA | Performance Stock Units | Award | 53,203 | 53,203 | 02 Mar 2026 | Direct | |||
| Feng-Ming Wang | AMBA | Non-Qualified Stock Option (right to buy) | Options Exercise | -100% | -50,000 | 0 | 02 Mar 2026 | Direct | ||
| Gregory M. Bryant | AMBA | Ordinary Shares | Award | 2,457 | 2,457 | 02 Mar 2026 | Direct | |||
| Chi-Hong Ju | AMBA | Ordinary Shares | Sale | -5.03% | $584,105 | $75.58 | -7,728 | 146,039 | 05 Jan 2026 | Direct |
| Chi-Hong Ju | AMBA | Ordinary Shares | Sale | -5.04% | $558,136 | $70.25 | -7,945 | 149,587 | 30 Dec 2025 | Direct |
| Chi-Hong Ju | AMBA | Ordinary Shares | Sale | -2.39% | $264,755 | $70.32 | -3,765 | 153,767 | 30 Dec 2025 | Direct |
| Christopher B. Paisley | AMBA | Ordinary Shares | Sale | -1.2% | $36,090 | $72.18 | -500 | 41,279 | 26 Dec 2025 | Direct |
| Feng-Ming Wang | AMBA | Ordinary Shares | Gift | -1.91% | -15,000 | 768,979 | 19 Dec 2025 | Direct | ||
| John A. Young | AMBA | Ordinary Shares | Sale | -3.56% | $276,591 | $72.96 | -3,791 | 102,738 | 18 Dec 2025 | Direct |
| John A. Young | AMBA | Ordinary Shares | Sale | -2.36% | $185,224 | $71.82 | -2,579 | 106,529 | 17 Dec 2025 | Direct |
| Chan W. Lee | AMBA | Ordinary Shares | Sale | -1.89% | $172,799 | $71.82 | -2,406 | 124,566 | 17 Dec 2025 | Direct |
| Chi-Hong Ju | AMBA | Ordinary Shares | Sale | -0.84% | $96,382 | $71.82 | -1,342 | 157,532 | 17 Dec 2025 | Direct |
| Feng-Ming Wang | AMBA | Ordinary Shares | Sale | -0.63% | $355,509 | $71.82 | -4,950 | 783,979 | 17 Dec 2025 | Direct |
| Elizabeth M. Schwarting | AMBA | Ordinary Shares | Sale | -8.53% | $45,163 | $72.38 | -624 | 6,690 | 16 Dec 2025 | Direct |
| David Jeffrey Richardson | AMBA | Ordinary Shares | Gift | 10.9% | 2,531 | 25,812 | 15 Dec 2025 | by Family Trust |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.