Ambiq Micro (AMBQ)
Designs ultra-low-power Apollo SoCs and software for battery-powered edge AI.
$57.00
Pre-market−0.24 (−0.42%)
At close$57.24(+2.32%)
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Breakdown13F · 13D/G · Form 4
| Institutions191 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | ≈ 112.80% | 27.28M shares | |
| Insiders10 holders · as of Sep 2, 2026 | 7.23% | 1.75M shares | |
| Strategic holders1 holder · as of Nov 3, 2025 | 6.16% | 1.49M shares | |
| Adds to | 126.19% |
24.18M company shares as of Sep 3, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 126.19%; nothing is left for Other.
Institutions13F, as of Jun 30, 2026
191 holders · 27.28M shares · 99 new positions · 150 increased · 31 reduced · 11 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Manufacturers Life Insurance Company, the | 10.30M | 42.60% | +10.30Mnew | Aug 14, 2026 |
| BlackRock, Inc. | 1.38M | 5.71% | +367.5K | Aug 7, 2026 |
| T. Rowe Price Investment Management, Inc. | 1.01M | 4.16% | −261.2K | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | 983.9K | 4.07% | +983.9K | Aug 14, 2026 |
| Atreides Management, LP | 877.1K | 3.63% | +14.9K | Aug 14, 2026 |
| State Street Corp | 862.0K | 3.56% | +601.8K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 768.5K | 3.18% | +61.1K | Aug 13, 2026 |
| Two Sigma Investments, LP | 651.8K | 2.70% | +615.0K | Aug 14, 2026 |
Ownership statements13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| KPCB XVI Associates, LLCincl. KPCB XVI Founders Fund, LLC, Kleiner Perkins Select Fund, LLC +3 more | 8.20% | 1.49M | 13G | Nov 3, 2025 ↗ |
| T. Rowe Price Investment Management, Inc. | 6.00% | 1.27M | 13G | May 15, 2026 ↗ |
| BlackRock, Inc. | 5.30% | 1.26M | 13G | Jul 27, 2026 ↗ |
Insider tradesForm 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 2, 2026 | Fumihide Esakadirector, officer: Chief Executive Officer | Sale · 2 lots | 11,027 | $56.69 | 460,460 |
| Sep 1, 2026 | Fumihide Esakadirector, officer: Chief Executive Officer | Sale | 48,973 | $56.39 | 460,460 |
| Aug 31, 2026 | Fumihide Esakadirector, officer: Chief Executive Officer | Sale · 6 lots | 48,500 | $57.44 | 451,189 |
| Aug 27, 2026 | Scott McLean Hansondirector, officer: Chief Technology Officer | Sale · 2 lots | 27,500 | $59.80 | 221,226 |
| Aug 26, 2026 | Scott McLean Hansondirector, officer: Chief Technology Officer | Sale | 27,500 | $59.58 | 221,226 |
| Aug 14, 2026 | Scott McLean Hansondirector, officer: Chief Technology Officer | Sale · 3 lots | 7,000 | $64.38 | 211,226 |
| Aug 14, 2026 | Fumihide Esakadirector, officer: Chief Executive Officer | Sale · 3 lots | 13,500 | $64.39 | 451,189 |
| May 27, 2026 | Timothy Chendirector | Sale · 4 lots | 70,592 | $79.79 | 0 |
| May 14, 2026 | Fumihide Esakadirector, officer: Chief Executive Officer | Sale | 60,000 | $70.02 | 391,189 |
| May 15, 2026 | Sean Chihhsiang Chenofficer: President and COO | Sale · 2 lots | 55,685 | $70.89 | 120,275 |
CongressHouse and Senate disclosures
Not reported.