Ambiq Micro Ownership | Who Owns Ambiq Micro?
Ambiq Micro Ownership Summary
Ambiq Micro is owned by 23.96% institutional investors, 5.59% insiders, and 70.46% retail investors. T. rowe price investment management is the largest institutional shareholder, holding 15.89% of AMBQ shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.85% of its assets in Ambiq Micro shares.
AMBQ Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Ambiq Micro | 23.96% | 5.59% | 70.46% |
| Sector | Technology Stocks | 36.27% | 15.30% | 48.43% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| T. rowe price investment management | 1.27M | 15.89% | $32.21M |
| Blackrock funding, inc. /de | 1.01M | 12.70% | $25.74M |
| Alliancebernstein | 686.10K | 8.60% | $19.55M |
| Schonfeld strategic advisors | 656.55K | 8.23% | $16.68M |
| Franklin resources | 542.22K | 6.80% | $13.78M |
| Atreides management, lp | 684.31K | 5.49% | $20.47M |
| Goldman sachs group | 413.43K | 5.18% | $10.51M |
| Driehaus capital management | 380.77K | 4.77% | $9.68M |
| Geode capital management | 297.55K | 3.73% | $7.56M |
| Silvercrest asset management group | 282.37K | 3.54% | $7.18M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| S squared | 192.77K | 1.85% | $4.90M |
| Roubaix capital | 125.82K | 1.49% | $3.20M |
| Monashee investment management | 103.76K | 1.43% | $2.64M |
| Toronado partners | 21.22K | 1.02% | $539.25K |
| Fortress investment group | 150.00K | 0.60% | $4.49M |
| Atreides management, lp | 684.31K | 0.40% | $20.47M |
| Needham investment management | 200.00K | 0.26% | $5.08M |
| Schonfeld strategic advisors | 656.55K | 0.12% | $16.68M |
| Summit partners public asset management | 155.60K | 0.11% | $3.95M |
| Polar asset management partners | 201.34K | 0.10% | $5.12M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| T. rowe price investment management | 1.27M | 0.02% | 1.27M |
| Blackrock funding, inc. /de | 1.01M | 0.00% | 705.26K |
| Atreides management, lp | 684.31K | 0.40% | 684.31K |
| Schonfeld strategic advisors | 656.55K | 0.12% | 434.74K |
| Driehaus capital management | 380.77K | 0.07% | 380.77K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Kadensa capital | - | - | -394.99K |
| Maverick capital | - | - | -59.25K |
| Seven grand managers | - | - | -50.00K |
| Peak6 | - | - | -35.84K |
| Verition fund management | - | - | -29.57K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| T. rowe price investment management | 1.27M | 0.02% | 1.27M | $32.21M |
| Atreides management, lp | 684.31K | 0.40% | 684.31K | $20.47M |
| Driehaus capital management | 380.77K | 0.07% | 380.77K | $9.68M |
| Needham investment management | 200.00K | 0.26% | 200.00K | $5.08M |
| S squared | 192.77K | 1.85% | 192.77K | $4.90M |
Sold Out
| Holder | Change |
|---|---|
| Ifp advisors | -1.00 |
| Nisa investment advisors | -12.00 |
| Massmutual trust co fsb/adv | -58.00 |
| Amalgamated bank | -146.00 |
| Quarry lp | -304.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 38 | -47.95% | 1,911,073 | -59.46% | 23 | 1.67% | 31 | -27.91% | 3 | -82.35% |
| Dec 31, 2025 | 43 | -31.75% | 2,077,169 | -53.06% | 16 | 1.32% | 32 | -49.21% | 6 | - |
| Sep 30, 2025 | 26 | - | 1,140,711 | - | 9 | - | 26 | - | - | - |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 609.76K | 2.85% | - |
| Templeton Global Smaller Comp A | 487.10K | 2.28% | - |
| iShares Russell 2000 ETF | 430.69K | 2.01% | 4.00K |
| T. Rowe Price Small-Cap Value | 328.69K | 1.54% | -205.00 |
| AB Small Cap Growth A | 324.85K | 1.52% | -8.87K |
| T. Rowe Price Small-Cap Stock | 313.21K | 1.47% | 313.21K |
| Wasatch Micro Cap | 251.83K | 1.18% | 36.15K |
| First Eagle Small Cap Opportunity I | 244.17K | 1.14% | -3.44K |
| First Eagle US Small Cap Strategy | 243.04K | 1.14% | 76.26K |
| T. Rowe Price U.S. SC Value Eq Tr-D | 214.18K | 1.00% | 214.18K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 27, 2026 | Chen Timothy | - | Sell | $266.24K |
| May 27, 2026 | Chen Timothy | - | Sell | $1.93M |
| May 27, 2026 | Chen Timothy | - | Sell | $1.77M |
| May 27, 2026 | Chen Timothy | - | Sell | $1.67M |
| May 14, 2026 | Winzeler Jeffrey G | Chief Financial Officer | Sell | $1.81M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 14 |
| 2026 Q1 | - | 2 |
| 2025 Q4 | - | - |
AMBQ Ownership FAQ
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