Ambiq Micro, Inc.
AMBQ- Exchange
- NYSE
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001500412
In the last 90 days, Ambiq Micro, Inc. insiders filed 0 open-market purchases and 10 sales; 184 institutions reported holding it in 13F filings for Q2 2026, worth $1.51B in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $17.6M in total
- 10
- 13F holdersQ2 2026, +88 vs. previous quarter
- 184
- 13F valueReported value at the end of Q2 2026
- $1.51B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding AMBQ, Q2 2026
No superinvestor reported holding AMBQ at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Ambiq Micro, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 17, 2026 (view filing)4:06 PM ET | Sep 15 | 2 days | Hanson Scott McLeanChief Technology Officer | SSale | −7.00K | $60.28 | −$421.9K | −3.1%221.2K after | 3 lots10b5-1 |
| Sep 15, 2026 (view filing)6:58 PM ET | Sep 11 | 4 days | Zhang KerDirector | SSale | −10.0K | $63.44 | −$634.4K | −32.9%20.4K after | 2 lots |
| Sep 15, 2026 (view filing)6:57 PM ET | Sep 14 | 1 day | Chen Sean ChihhsiangPresident and COO | SSale | −15.0K | $60.14 | −$902.1K | −11.1%120.3K after | 3 lots10b5-1 |
| Sep 15, 2026 (view filing)6:56 PM ET | Sep 11-15 | 4 days | Esaka FumihideChief Executive Officer | SSale | −63.5K | $62.70 | −$3.98M | −12.1%460.5K after | 5 lots10b5-1 |
| Sep 9, 2026 (view filing)5:10 PM ET | Sep 4 | 5 days | Chen Sean ChihhsiangPresident and COO | SSale | −15.0K | $57.17 | −$857.6K | −11.1%120.3K after | 2 lots10b5-1 |
| Sep 9, 2026 (view filing)5:08 PM ET | Sep 4 | 5 days | Zhang KerDirector | SSale | −185 | $56.92 | −$10.5K | −0.6%30.4K after | |
| Sep 2, 2026 (view filing)4:47 PM ET | Aug 31-Sep 2 | 2 days | Esaka FumihideChief Executive Officer | SSale | −108.5K | $56.89 | −$6.17M | −19.1%460.5K after | 9 lots10b5-1 |
| Aug 28, 2026 (view filing)5:19 PM ET | Aug 26-27 | 2 days | Hanson Scott McLeanChief Technology Officer | SSale | −55.0K | $59.69 | −$3.28M | −19.9%221.2K after | 3 lots |
| Aug 18, 2026 (view filing)4:40 PM ET | Aug 14 | 4 days | Hanson Scott McLeanChief Technology Officer | SSale | −7.00K | $64.38 | −$450.6K | −3.2%211.2K after | 3 lots10b5-1 |
| Aug 18, 2026 (view filing)4:30 PM ET | Aug 14 | 4 days | Esaka FumihideChief Executive Officer | SSale | −13.5K | $64.39 | −$869.2K | −2.9%451.2K after | 3 lots10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Ambiq Micro, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 1,380,623 | $121.9M | 0.00% | +367,462+36.3% | Added |
| T. Rowe Price Investment Management, Inc. | 1,006,359 | $88.9M | 0.06% | −261,192−20.6% | Reduced |
| D. E. Shaw & Co., Inc. | 983,916 | $86.9M | 0.05% | +983,916 | New |
| Atreides Management, LP | 877,123 | $77.4M | 0.69% | +14,948+1.7% | Added |
| State Street Corp | 861,979 | $76.1M | 0.00% | +601,752+231.2% | Added |
| Vanguard Capital Management LLC | 768,539 | $67.9M | 0.00% | +61,135+8.6% | Added |
| Two Sigma Investments, LP | 651,786 | $57.6M | 0.04% | +614,992+1,671.4% | Added |
| First Eagle Investment Management, LLC | 488,788 | $43.2M | 0.04% | +209,715+75.1% | Added |
| Goldman Sachs Group Inc | 446,950 | $39.5M | 0.00% | +33,524+8.1% | Added |
| Geode Capital Management, LLC | 339,327 | $30.0M | 0.00% | +41,779+14.0% | Added |