Ambarella Ownership | Who Owns Ambarella?
Ambarella Ownership Summary
Ambarella is owned by 83.10% institutional investors, 4.45% insiders, and 12.45% retail investors. Vanguard group is the largest institutional shareholder, holding 12.88% of AMBA shares. Vanguard MStar Total Stk Mkt Idx Invest is the top mutual fund, with 3.02% of its assets in Ambarella shares.
AMBA Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Ambarella | 83.10% | 4.45% | 12.45% |
| Sector | Technology Stocks | 53.83% | 15.00% | 31.18% |
| Idea | Semiconductor Stocks List | 73.13% | 6.84% | 20.03% |
| Idea | Self Driving Car Stocks List | 50.60% | 7.17% | 42.23% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 5.48M | 12.88% | $388.22M |
| Blackrock funding, inc. /de | 3.94M | 9.05% | $338.45M |
| Blackrock | 3.47M | 8.52% | $187.38M |
| Price t rowe associates inc /md/ | 2.60M | 5.96% | $222.99M |
| State street | 2.56M | 5.88% | $219.88M |
| Vanguard capital management | 1.87M | 4.30% | $160.75M |
| Manufacturers life insurance company, the | 1.19M | 2.72% | $158.19M |
| Legal & general group | 1.12M | 2.56% | $95.82M |
| Geode capital management | 1.10M | 2.52% | $94.24M |
| Kodai capital management lp | 778.55K | 1.89% | $56.63M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Potrero capital research | 86.59K | 4.13% | $7.43M |
| Samjo management | 136.96K | 4.01% | $11.75M |
| Sws partners | 132.05K | 2.45% | $11.33M |
| Kodai capital management lp | 778.55K | 2.32% | $56.63M |
| Katamaran capital llp | 33.02K | 2.26% | $2.83M |
| Westerly capital management | 80.00K | 1.27% | $6.86M |
| Collar capital management | 18.13K | 0.92% | $1.56M |
| Essex investment management | 80.00K | 0.90% | $6.86M |
| Act capital management | 16.00K | 0.90% | $1.37M |
| Apis capital advisors | 88.00K | 0.73% | $7.55M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Price t rowe associates inc /md/ | 2.60M | 0.02% | 1.65M |
| Menora mivtachim | 757.57K | 0.25% | 757.57K |
| State street | 2.56M | 0.01% | 586.27K |
| Sixth street partners management company | 379.55K | 0.00% | 379.55K |
| Macquarie management | 358.12K | 0.05% | 358.12K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Jericho capital asset management | - | - | -1.59M |
| Millennium management | 41.32K | 0.00% | -1.47M |
| Macquarie group | - | - | -1.18M |
| Citadel advisors | - | - | -931.86K |
| Fuller & thaler asset management | - | - | -848.09K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Menora mivtachim | 757.57K | 0.25% | 757.57K | $65.00M |
| Sixth street partners management company | 379.55K | 0.00% | 379.55K | $32.57M |
| Macquarie management | 358.12K | 0.05% | 358.12K | $30.73M |
| Axa investment managers | 332.58K | 0.07% | 332.58K | $27.44M |
| Quadrature capital | 117.74K | 0.09% | 117.74K | $10.10M |
Sold Out
| Holder | Change |
|---|---|
| Assetmark | -1.00 |
| Stephens consulting | -1.00 |
| Abound wealth management | -2.00 |
| Northwestern mutual wealth management | -2.00 |
| Tortoise investment management | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 362 | 13.13% | 36,234,297 | -0.72% | 83 | 1.14% | 210 | 20.00% | 90 | 4.65% |
| Mar 31, 2026 | 313 | -10.57% | 36,474,494 | -1.53% | 85 | 1.13% | 169 | 11.92% | 85 | -33.59% |
| Dec 31, 2025 | 106 | -70.31% | 8,856,314 | -75.10% | 20 | 0.30% | 45 | -76.56% | 37 | -63.73% |
| Sep 30, 2025 | 129 | -59.31% | 8,725,551 | -73.23% | 20 | 0.35% | 65 | -60.12% | 38 | -63.46% |
| Jun 30, 2025 | 322 | 2.22% | 35,040,309 | -0.42% | 82 | 1.14% | 163 | -3.55% | 106 | 10.42% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 1.33M | 3.02% | 4.72K |
| Vanguard Morn Total Stk Mkt Idx Investor | 1.32M | 3.01% | 19.58K |
| Vanguard Total Stock Mkt Idx Inv | 1.32M | 3.01% | 19.58K |
| Vanguard US Total Market Shares ETF | 1.24M | 2.95% | 1.28K |
| State Street® SPDR® S&P® Smcndctr ETF | 1.17M | 2.67% | - |
| iShares Russell 2000 ETF | 1.09M | 2.48% | -19.30K |
| Vanguard Information Technology ETF | 1.02M | 2.31% | 4.16K |
| Vanguard Small Cap Index | 957.90K | 2.18% | 2.80K |
| Vanguard Explorer Inv | 795.64K | 1.81% | 297.33K |
| US Small-Cap Growth II Equity Comp | 732.34K | 1.67% | 192.66K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jul 09, 2026 | Chen Yun-Lung | VP, Business Dev. & Marketing | Sell | $468.66K |
| Jul 01, 2026 | Ju Chi-Hong | Senior VP, Systems & GM | Sell | $888.40K |
| Jul 01, 2026 | Wang Feng-Ming | CEO | Sell | $1.46M |
| Jun 26, 2026 | PAISLEY CHRISTOPHER B | - | Sell | $15.50K |
| Jun 17, 2026 | Young John Alexander | CFO | Sell | $123.71K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 3 |
| 2026 Q2 | - | 12 |
| 2026 Q1 | - | 14 |
| 2025 Q4 | - | 11 |
| 2025 Q3 | - | 6 |
AMBA Ownership FAQ
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