Quick Takeaways
- AMBA - AMBARELLA INC has 19 insiders with reported activity on this page.
- Net insider value flow over the last year: -$11,936,661.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 19 Insiders of AMBARELLA INC
- Symbol
- AMBA on Nasdaq
- Location
- Santa Clara, CA
What Changed
- Buy value: ; sell value: $11,936,661.
- Net share flow: -185,663.
Why This Matters
- 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.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$11,936,661.
Buys
$0
Shares: 0
Insiders: 0
Sells
$11,936,661
Shares: 185,663
Insiders: 9
Net
-$11,936,661
Shares: -185,663
Insiders: -9
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 101,928 | $0 | $5,803,448 | -$5,803,448 |
| 3-6 | 0 | 46,843 | $0 | $3,484,238 | -$3,484,238 |
| 6-9 | 0 | 24,014 | $0 | $1,965,650 | -$1,965,650 |
| 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 | $6,474,819 | -$1,198,891 | -16% | Filing P/S | 17 Mar 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 by the holder's primary source 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 GROUP INC |
13F
|
Company |
13%
|
5,480,285
|
$388,223,390 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
7.3%
from 13D/G
|
3,827,849
|
$271,164,833 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4%
|
1,702,493
|
$120,604,604 | — | 31 Dec 2025 | |
| Jericho Capital Asset Management L.P. |
13F
|
Company |
3.7%
|
1,587,081
|
$112,428,817 | — | 31 Dec 2025 | |
| Leslie Kohn |
3/4/5
|
Chief Technology Officer, Director |
—
mixed-class rows
|
996,988
mixed-class rows
|
$77,637,106 | -$268,264 | 17 Sep 2025 | |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE |
13F
|
Company |
2.5%
|
1,061,145
|
$75,171,512 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.4%
|
1,020,527
|
$72,305,385 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
2.1%
|
911,477
|
$64,569,206 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
2%
|
864,610
|
$61,250,000 | — | 31 Dec 2025 | |
| FULLER & THALER ASSET MANAGEMENT, INC. |
13F
|
Company |
2%
|
848,092
|
$60,078,824 | — | 31 Dec 2025 | |
| Slate Path Capital LP |
13F
|
Company |
1.9%
|
814,400
|
$57,692,096 | — | 31 Dec 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
1.8%
|
793,745
|
$56,228,896 | — | 31 Dec 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
1.8%
|
772,033
|
$54,690,818 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
1.6%
|
695,086
|
$49,239,892 | — | 31 Dec 2025 | |
| Feng-Ming Wang |
3/4/5
|
CEO, Director |
1.9%
|
838,561
|
$45,399,692 | -$5,470,369 | 17 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
1.5%
|
635,564
|
$45,023,354 | — | 31 Dec 2025 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
1.4%
|
617,860
|
$43,769,202 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
1.4%
|
614,017
|
$43,496,965 | — | 31 Dec 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
1.3%
|
557,159
|
$39,469,144 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
1.2%
|
535,674
|
$37,947,146 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.2%
|
498,659
|
$35,321,813 | — | 31 Dec 2025 | |
| Stephens Investment Management Group LLC |
13F
|
Company |
1.1%
|
476,948
|
$33,786,996 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
1.1%
|
476,898
|
$33,783,454 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1%
|
446,915
|
$31,659,424 | — | 31 Dec 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
1%
|
438,169
|
$30,996,724 | — | 31 Dec 2025 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.85%
|
366,251
|
$25,945,221 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.85%
|
365,219
|
$25,872,114 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.84%
|
364,014
|
$25,786,752 | — | 31 Dec 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.84%
|
359,899
|
$25,495,245 | — | 31 Dec 2025 | |
| PINNACLE ASSOCIATES LTD |
13F
|
Company |
0.83%
|
359,222
|
$25,447,286 | — | 31 Dec 2025 | |
| EXCHANGE TRADED CONCEPTS, LLC |
13F
|
Company |
0.82%
|
353,101
|
$25,013,675 | — | 31 Dec 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.74%
|
318,488
|
$22,561,687 | — | 31 Dec 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
0.74%
|
318,429
|
$22,557,510 | — | 31 Dec 2025 | |
| Handelsbanken Fonder AB |
13F
|
Company |
0.72%
|
312,326
|
$22,125,000 | — | 31 Dec 2025 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.72%
|
309,215
|
$21,905,000 | — | 31 Dec 2025 | |
| Shannon River Fund Management LLC |
13F
|
Company |
0.7%
|
301,093
|
$21,329,428 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
0.65%
|
281,370
|
$19,932,253 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.62%
|
267,872
|
$18,976,067 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.55%
|
235,847
|
$16,707,376 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.54%
|
231,218
|
$16,379,483 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.52%
|
222,565
|
$15,766,505 | — | 31 Dec 2025 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
0.48%
|
207,920
|
$14,729,000 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.48%
|
207,625
|
$14,708,181 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.44%
|
189,038
|
$13,221,587 | — | 31 Dec 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.42%
|
182,275
|
$12,912,361 | — | 31 Dec 2025 | |
| SEGALL BRYANT & HAMILL, LLC |
13F
|
Company |
0.41%
|
178,097
|
$12,616,391 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.39%
|
169,852
|
$12,032,316 | — | 31 Dec 2025 | |
| SORA INVESTORS LLC |
13F
|
Company |
0.38%
|
162,733
|
$11,528,006 | — | 31 Dec 2025 | |
| Robeco Schweiz AG |
13F
|
Company |
0.38%
|
162,595
|
$11,518,230 | — | 31 Dec 2025 | |
| Potrero Capital Research LLC |
13F
|
Company |
0.34%
|
148,537
|
$10,522,361 | — | 31 Dec 2025 |
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 | -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 | ||
| David Jeffrey Richardson | AMBA | Ordinary Shares | Gift | -50.3% | -2,531 | 2,498 | 15 Dec 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.