Ambiq Micro Ownership | Who Owns Ambiq Micro?
Ambiq Micro Ownership Summary
Ambiq Micro is owned by 135.53% institutional investors, 5.00% insiders. Manufacturers life insurance company, the is the largest institutional shareholder, holding 50.51% of AMBQ shares. Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund, with 2.66% of its assets in Ambiq Micro shares.
AMBQ Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Ambiq Micro | 135.53% | 5.00% | -40.53% |
| Sector | Technology Stocks | 53.60% | 14.91% | 31.49% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Manufacturers life insurance company, the | 10.30M | 50.51% | $434.08K |
| Blackrock funding, inc. /de | 1.38M | 6.77% | $121.91M |
| T. rowe price investment management | 1.01M | 4.93% | $88.86M |
| D. e. shaw | 983.92K | 4.82% | $86.88M |
| Atreides management, lp | 877.12K | 4.30% | $77.45M |
| State street | 861.98K | 4.23% | $76.11M |
| Vanguard capital management | 768.54K | 3.77% | $67.86M |
| Two sigma investments, lp | 651.79K | 3.20% | $57.55M |
| Alliancebernstein | 609.61K | 2.99% | $15.49M |
| Vanguard group | 328.18K | 2.63% | $9.35M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Toronado partners | 19.23K | 4.78% | $1.70M |
| S squared | 120.77K | 3.31% | $10.66M |
| Roubaix capital | 53.26K | 1.69% | $4.70M |
| Spark investment management | 8.80K | 1.52% | $777.04K |
| Moody aldrich partners | 81.39K | 1.29% | $7.19M |
| Needham investment management | 323.70K | 0.86% | $28.58M |
| Fortress investment group | 150.00K | 0.60% | $4.49M |
| Atreides management, lp | 877.12K | 0.54% | $77.45M |
| G2 investment partners management | 33.00K | 0.53% | $2.91M |
| Emerald advisers | 243.66K | 0.51% | $21.52M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Manufacturers life insurance company, the | 10.30M | 0.00% | 10.30M |
| D. e. shaw | 983.92K | 0.04% | 983.92K |
| Two sigma investments, lp | 651.79K | 0.04% | 614.99K |
| State street | 861.98K | 0.00% | 601.75K |
| Blackrock funding, inc. /de | 1.38M | 0.00% | 367.46K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Kadensa capital | - | - | -394.99K |
| Schonfeld strategic advisors | 315.45K | 0.10% | -341.10K |
| Franklin resources | 223.76K | 0.00% | -318.45K |
| T. rowe price investment management | 1.01M | 0.06% | -261.19K |
| Polar asset management partners | - | - | -201.34K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Manufacturers life insurance company, the | 10.30M | 0.00% | 10.30M | $434.08K |
| Jane street group | 294.80K | 0.00% | 294.80K | $26.03M |
| Neuberger berman group | 272.13K | 0.02% | 272.13K | $24.03M |
| Emerald advisers | 243.66K | 0.51% | 243.66K | $21.52M |
| Hrt financial lp | 225.64K | 0.04% | 225.64K | $19.92M |
Sold Out
| Holder | Change |
|---|---|
| Ifp advisors | -1.00 |
| True wealth design | -1.00 |
| Root financial partners | -4.00 |
| Mai capital management | -20.00 |
| Massmutual trust co fsb/adv | -58.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 190 | 95.88% | 27,642,990 | 151.46% | 135 | 0.71% | 149 | 77.38% | 31 | 342.86% |
| 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 Morn Total Stk Mkt Idx Investor | 643.35K | 2.66% | 43.19K |
| Vanguard Total Stock Mkt Idx Inv | 643.35K | 2.66% | 43.19K |
| iShares Russell 2000 ETF | 474.52K | 1.97% | -8.45K |
| State Street® SPDR® S&P® Smcndctr ETF | 351.30K | 1.45% | - |
| T. Rowe Price US Small-Cap Core Equity | 301.79K | 1.25% | 301.79K |
| T. Rowe Price Small-Cap Stock | 301.79K | 1.25% | -11.41K |
| Wasatch Micro Cap | 251.83K | 1.18% | 36.15K |
| Needham Aggressive Growth Retail | 278.99K | 1.16% | 103.99K |
| AB Small Cap Growth A | 273.05K | 1.13% | 61.50K |
| First Eagle Small Cap Opportunity I | 220.66K | 0.91% | -23.50K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 14, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | $52.24K |
| Aug 14, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | $347.79K |
| Aug 14, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | $50.60K |
| Aug 14, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | $81.13K |
| Aug 14, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | $690.20K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 14 |
| 2026 Q1 | - | 2 |
| 2025 Q4 | - | - |
AMBQ Ownership FAQ
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