AMBA
Ambarella (AMBA)
NASDAQ
$62.65-$3.35 (-5.08%)
Price as of Oct 22, 2026 6:53 PM EDT
  • $2.4B
    Market Cap
  • -17.28%
    1-Year Change
  • Semiconductor Equipment & Materials
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD GROUP INC
12.42%
5.5M
+311,649 (+5.69%)
Dec 31, 2025
BLACKROCK, INC.
8.94%
3.9M
+155,377 (+3.94%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
8.66%
3.8M
+195,345 (+5.11%)
Dec 31, 2024
N/A
8.36%
3.7M
-28,458 (-0.77%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
8.36%
3.7M
-28,458 (-0.77%)
Jun 30, 2026
BLACKROCK INC.
7.87%
3.5M
+33,728 (+0.97%)
Jun 30, 2024
PRICE T ROWE ASSOCIATES INC /MD/
5.89%
2.6M
+1.6M (+63.36%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions632.7M (78.64%)
  • Mutual Funds162.3M (20.17%)
  • Insiders9.5M (1.18%)
  • Other0 (0.00%)

Insider Transactions

  • 1.18% (9.5M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 7
    Number of InsiderSelling (last 12 months)
  • $722.4M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
PAISLEY CHRISTOPHER B
Sell
Sep 25, 2026
$17,690.00
250
$70.76
43,930
Young John Alexander
CFO
Sell
Sep 18, 2026
$127,562.88
1,896
$67.28
107,806
Wang Feng-Ming
CEO
Sell
Sep 17, 2026
$394,555.38
6,086
$64.83
767,759
Young John Alexander
CFO
Sell
Sep 17, 2026
$202,658.58
3,126
$64.83
109,702
Ju Chi-Hong
Senior VP, Systems & GM
Sell
Sep 17, 2026
$130,243.47
2,009
$64.83
154,153
Lee Chan W
Chief Operations Officer
Sell
Sep 17, 2026
$187,553.19
2,893
$64.83
154,443
Breithaupt Chantelle Yvette
Award
Sep 08, 2026
$0.00
3,151
$0.00
8,091
Schwarting Elizabeth M
Award
Sep 08, 2026
$0.00
3,151
$0.00
9,841
Hon Hsiao-Wuen
Award
Sep 08, 2026
$0.00
3,151
$0.00
33,927
Hu Chenming
Award
Sep 08, 2026
$0.00
3,151
$0.00
32,667
PAISLEY CHRISTOPHER B
Award
Sep 08, 2026
$0.00
3,151
$0.00
44,180
RICHARDSON DAVID JEFFREY
Award
Sep 08, 2026
$0.00
3,151
$0.00
5,649
Bryant Gregory M
Award
Sep 08, 2026
$0.00
3,151
$0.00
5,608
Chen Yen-Lung
VP, Business Dev. & Marketing
Sell
Jul 09, 2026
$468,656.28
5,958
$78.66
60,557
Ju Chi-Hong
Senior VP, Systems & GM
Sell
Jul 01, 2026
$888,400.00
10,000
$88.84
155,924
Wang Feng-Ming
CEO
Sell
Jul 01, 2026
$1.5M
16,250
$90.08
773,607
Young John Alexander
CFO
Sell
Jun 17, 2026
$216,233.82
3,186
$67.87
114,437
Ju Chi-Hong
Senior VP, Systems & GM
Sell
Jun 17, 2026
$136,893.79
2,017
$67.87
165,924
Wang Feng-Ming
CEO
Sell
Jun 17, 2026
$421,065.48
6,204
$67.87
799,857
Lee Chan W
Chief Operations Officer
Sell
Jun 17, 2026
$200,284.37
2,951
$67.87
157,098
Young John Alexander
CFO
Sell
Jun 17, 2026
$123,712.06
1,847
$66.98
112,590
Wang Feng-Ming
CEO
Gift
Jun 17, 2026
$0.00
10,000
$0.00
789,857
Chen Yen-Lung
VP, Business Development and
Sell
Jun 12, 2026
$660,943.36
9,856
$67.06
66,515
Wang Feng-Ming
CEO
Sell
Mar 19, 2026
$437,613.62
8,083
$54.14
838,561
Lee Chan W
Chief Operations Officer
Sell
Mar 19, 2026
$197,123.74
3,641
$54.14
160,049
Ju Chi-Hong
Senior VP, Systems & GM, Asia
Sell
Mar 19, 2026
$116,671.70
2,155
$54.14
167,941
Chen Yen-Lung
VP, Business Development and M
Award
Mar 18, 2026
$0.00
2,849
$0.00
76,371
Wang Feng-Ming
CEO
Award
Mar 18, 2026
$0.00
15,686
$0.00
846,644
Lee Chan W
Chief Operations Officer
Award
Mar 18, 2026
$0.00
7,320
$0.00
163,690
Ju Chi-Hong
Senior VP, Systems & GM, Asia
Award
Mar 18, 2026
$0.00
5,930
$0.00
170,096