Ambiq MicroAMBQ
13F holders, Q4 2025 (December 31)75holders +2
15new positions
15sold out
5famous investors
$28.50avg. 13F price*
At the end of Q4 2025, 75 institutions reported holding Ambiq Micro Inc. (AMBQ) in their 13F filings, up 2 from Q3 2025. 15 opened new positions and 15 sold out. The largest holders were Atreides Management ($19.8M), Alliancebernstein L.P. ($11.3M) and KADENSA CAPITAL Ltd ($11.3M). 5 famous investors held it, including Gavin Baker (0.4% of Atreides Management's portfolio), Lee Ainslie (0.0% of Maverick Capital's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Ambiq Micro Inc.
- CUSIP
- 023193105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $3.7M |
| Exits | 15 | $11.6M |
All 13F filers, Q3 2025 → Q4 2025: 826,648 shares bought and 638,993 shares sold, net +187,655 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 75 holders
| Atreides Management | 0.42% | Add +1.8% | 696,420 | $19.8M |
| Alliancebernstein L.P. | 0.00% | Reduce -9.3% | 395,371 | $11.3M |
| KADENSA CAPITAL Ltd | 1.17% | No change | 394,991 | $11.3M |
| Vanguard Group Inc. | 0.00% | Add +6.6% | 328,182 | $9.4M |
| BlackRock, Inc. | 0.00% | Add +5.5% | 307,896 | $8.8M |
| Franklin Resources Inc. | 0.00% | Add +2474.3% | 307,887 | $8.8M |
| Schonfeld Strategic Advisors LLC | 0.03% | Reduce -19.1% | 221,810 | $6.3M |
| Wasatch Advisors LP | 0.04% | Add +49.6% | 217,512 | $6.2M |
| First Eagle Investment Management, LLC | 0.01% | Add +222.1% | 189,723 | $5.4M |
| Silvercrest Asset Management Group LLC | 0.04% | No change | 188,690 | $5.4M |
| Softbank Group Corp. | 0.03% | No change | 148,939 | $4.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +8.8% | 132,112 | $3.8M |
| Summit Partners Public Asset Management, LLC | 0.10% | Add +32.0% | 123,597 | $3.5M |
| Geode Capital Management, LLC | 0.00% | Add +6.3% | 104,184 | $3.0M |
| Gilder Gagnon Howe & Co. LLC | 0.03% | Reduce -2.1% | 93,745 | $2.7M |
| Monashee Investment Management LLC | 1.43% | Reduce -57.5% | 85,089 | $2.4M |
| State Street Corp. | 0.00% | Add +16.9% | 84,507 | $2.4M |
| Millennium Management | 0.00% | New | 62,018 | $1.8M |
| Maverick Capital | 0.02% | No change | 59,248 | $1.7M |
| Seven Grand Managers, LLC | 0.11% | No change | 50,000 | $1.4M |
| Morgan Stanley | 0.00% | Add +351.0% | 39,284 | $1.1M |
| PEAK6 LLC | 0.03% | Reduce -10.4% | 35,835 | $1.0M |
| UBS Group AG | 0.00% | Reduce -13.6% | 35,789 | $1.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +9.7% | 33,833 | $964K |
| Alyeska Investment Group, L.P. | 0.00% | Add +75.5% | 32,832 | $936K |
| Tudor Investment Corporation | 0.00% | New | 26,976 | $769K |
| Polar Asset Management Partners Inc. | 0.02% | New | 26,088 | $744K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +924.0% | 22,179 | $632K |
| Ameriprise Financial Inc. | 0.00% | Reduce -9.6% | 20,456 | $583K |
| Northern Trust Corp. | 0.00% | Reduce -40.3% | 20,284 | $578K |
| Hound Partners, LLC | 0.08% | No change | 20,000 | $570K |
| Ghisallo Capital Management LLC | 0.03% | No change | 20,000 | $570K |
| Norges Bank | 0.00% | — | 20,000 | $570K |
| D. E. Shaw & Co. | 0.00% | Add +29.0% | 19,574 | $558K |
| Kornitzer Capital Management Inc. | 0.01% | Add +0.4% | 17,073 | $487K |
| Readystate Asset Management LP | 0.04% | Reduce -22.8% | 16,596 | $473K |
| Inspire Investing, LLC | 0.04% | Add +7.1% | 16,141 | $460K |
| Deutsche Bank AG | 0.00% | Reduce -22.6% | 15,389 | $439K |
| JPMorgan Chase & Co. | 0.00% | Add +576.1% | 12,691 | $362K |
| Walleye Capital LLC | 0.00% | No change | 11,555 | $329K |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 10,818 | $308K |
| Los Angeles Capital Management LLC | 0.00% | New | 8,658 | $257K |
| Barclays PLC | 0.00% | Add +28.7% | 8,451 | $241K |
| Bank of America Corp. | 0.00% | Add +10.9% | 6,559 | $187K |
| Wells Fargo & Company | 0.00% | Add +71.5% | 5,344 | $152K |
| Quantbot Technologies LP | 0.00% | New | 3,865 | $110K |
| Rhumbline Advisers | 0.00% | Reduce -14.4% | 3,408 | $97K |
| New York State Common Retirement Fund | 0.00% | New | 1,700 | $48K |
| Osaic Holdings, Inc. | 0.00% | Reduce -13.6% | 1,595 | $45K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -63.4% | 1,236 | $35K |
| Citigroup Inc. | 0.00% | Add +654.1% | 1,101 | $31K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 1,025 | $29K |
| BNP Paribas Financial Markets | 0.00% | Add +5.2% | 989 | $28K |
| Royal Bank of Canada | 0.00% | Reduce -83.0% | 810 | $24K |
| STRS Ohio | 0.00% | No change | 800 | $23K |
| FMR LLC | 0.00% | Add +415.3% | 572 | $16K |
| Legal & General Group Plc | 0.00% | No change | 473 | $13K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -55.5% | 440 | $13K |
| Russell Investments Group, Ltd. | 0.00% | Add +3.3% | 412 | $12K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 389 | $11K |
| Quarry LP | 0.00% | Add +1588.9% | 304 | $9K |
| California State Teachers Retirement System | 0.00% | New | 287 | $8K |
| Hurley Capital, LLC | 0.00% | No change | 200 | $6K |
| Amalgamated Bank | 0.00% | Reduce -3.3% | 146 | $4K |
| Sterling Capital Management LLC | 0.00% | Add +10.7% | 135 | $4K |
| Cwm, LLC | 0.00% | New | 49 | $1K |
| Nisa Investment Advisors, LLC | 0.00% | New | 12 | $342 |
| GAMMA Investing LLC | 0.00% | New | 11 | $314 |
| Rachor Investment Advisory Services, LLC | 0.00% | — | 9 | $257 |
| Rothschild Investment LLC | 0.00% | New | 5 | $143 |
| Allworth Financial LP | 0.00% | New | 2 | $57 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 1 | $29 |
| Essential Partners LLC | 0.00% | New | 1 | $29 |
| IFP Advisors, Inc | 0.00% | New | 1 | $28 |
| Coston, McIsaac & Partners | 0.00% | No change | 1 | $0 |
"% of holder's portfolio" is AMBQ's weight in each manager's 13F, not the share of Ambiq Micro Inc. the manager owns.