Ambarella Ownership | Who Owns Ambarella?
Ambarella Ownership Summary
Ambarella is owned by 2.76% institutional investors, 4.96% insiders, and 92.28% retail investors. Vanguard group is the largest institutional shareholder, holding 11.42% of AMBA shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.95% of its assets in Ambarella shares.
AMBA Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Ambarella | 2.76% | 4.96% | 92.28% |
| Sector | Technology Stocks | 35.54% | 12.05% | 52.42% |
| Idea | Semiconductor Stocks List | 42.90% | 7.21% | 49.89% |
| Idea | Self Driving Car Stocks List | 26.38% | 5.64% | 67.98% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 4.70M | 11.42% | $341.60M |
| Blackrock funding, inc. /de | 3.82M | 9.30% | $278.20M |
| Blackrock | 3.47M | 8.52% | $187.38M |
| State street | 1.59M | 3.86% | $115.41M |
| Manufacturers life insurance company, the | 1.45M | 3.53% | $105.63M |
| Morgan stanley | 1.13M | 2.77% | $60.89M |
| Geode capital management | 914.53K | 2.22% | $66.54M |
| Millennium management | 910.17K | 2.18% | $45.81M |
| William blair investment management | 829.05K | 2.02% | $60.31M |
| Point72 asset management | 802.28K | 1.95% | $58.36M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| S squared | 125.55K | 3.79% | $9.13M |
| Sora investors | 353.37K | 2.85% | $25.70M |
| Kodai capital management lp | 778.55K | 2.32% | $56.63M |
| Tributary capital management | 287.56K | 1.62% | $20.92M |
| Sws partners | 67.41K | 1.48% | $4.90M |
| Essex investment management | 90.52K | 1.18% | $6.58M |
| Sender co & partners | 12.75K | 0.84% | $927.58K |
| Sg capital management | 102.37K | 0.72% | $7.45M |
| Oberweis asset management inc/ | 182.80K | 0.63% | $13.30M |
| Pinnacle associates | 514.84K | 0.51% | $37.45M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fuller & thaler asset management | 725.47K | 0.20% | 725.47K |
| Balyasny asset management | 630.51K | 0.07% | 504.75K |
| Invesco | 335.73K | 0.00% | 295.61K |
| Woodline partners lp | 263.33K | 0.13% | 252.66K |
| Blackrock funding, inc. /de | 3.82M | 0.01% | 195.34K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Macquarie group | - | - | -1.18M |
| Millennium management | 910.17K | 0.02% | -484.02K |
| Marshall wace, llp | 202.43K | 0.02% | -353.59K |
| State street | 1.59M | 0.00% | -337.56K |
| Morgan stanley | 1.13M | 0.00% | -248.19K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Fuller & thaler asset management | 725.47K | 0.20% | 725.47K | $52.77M |
| Raymond james financial | 114.75K | 0.00% | 114.75K | $8.35M |
| Susquehanna fundamental investments | 49.85K | 0.05% | 49.85K | $3.63M |
| Renaissance | 43.00K | 0.00% | 43.00K | $3.13M |
| Peak6 | 16.51K | 0.00% | 16.51K | $1.20M |
Sold Out
| Holder | Change |
|---|---|
| Natixis | -1.00 |
| Riggs asset managment | -4.00 |
| Nelson, van denburg & campbell wealth management group | -8.00 |
| Nbt bank n a /ny | -10.00 |
| Berkshire capital | -10.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2025 | 10 | -96.91% | 1,154,851 | -96.58% | 2 | 0.04% | 2 | -98.76% | 2 | -97.98% |
| Dec 31, 2024 | 319 | 11.15% | 33,697,450 | 2.34% | 81 | 1.28% | 155 | 13.97% | 100 | 9.89% |
| Sep 30, 2024 | 283 | -0.35% | 32,908,102 | -3.05% | 80 | 1.17% | 133 | 1.53% | 92 | -5.15% |
| Jun 30, 2024 | 282 | -1.40% | 33,942,767 | 2.49% | 83 | 1.24% | 129 | -14.57% | 97 | 24.36% |
| Mar 31, 2024 | 286 | 2.88% | 33,119,630 | 0.31% | 82 | 1.21% | 151 | 4.14% | 78 | -4.88% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 1.24M | 2.95% | 1.28K |
| Vanguard Total Stock Mkt Idx Inv | 1.24M | 2.95% | 4.87K |
| Vanguard Small Cap Index | 994.78K | 2.35% | 7.31K |
| iShares Russell 2000 ETF | 952.71K | 2.25% | 161.00 |
| Vanguard Information Technology ETF | 929.24K | 2.19% | 6.94K |
| FullerThaler Behavioral Small-Cap Growth | 614.60K | 1.45% | 124.13K |
| Vanguard Institutional Extnd Mkt Idx Tr | 604.31K | 1.44% | 11.60K |
| FullerThaler Behavioral Sm-Cp Gr R6 | 610.50K | 1.44% | 57.00K |
| SPDR® S&P Semiconductor ETF | 603.73K | 1.42% | -5.78K |
| Vanguard Small Cap Growth Index Inv | 553.27K | 1.30% | 397.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 25, 2025 | PAISLEY CHRISTOPHER B | - | Sell | $27.75K |
| Mar 18, 2025 | Young John Alexander | CFO | Sell | $115.71K |
| Mar 18, 2025 | Day Christopher | VP, Marketing | Sell | $26.35K |
| Mar 18, 2025 | Lee Chan W | Chief Operating Officer | Sell | $80.77K |
| Mar 18, 2025 | Kohn Leslie | Chief Technology Officer | Sell | $87.15K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q1 | - | 24 |
| 2024 Q4 | - | 15 |
| 2024 Q3 | - | 13 |
| 2024 Q2 | - | 11 |
| 2024 Q1 | - | 13 |
AMBA Ownership FAQ
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