Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AMBQ held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.0M | $25.7M | +229.1% | 4.740% | 0.00% |
| 2 | Atreides Management, LP | 862K | $21.9M | +23.8% | 4.033% | 0.58% |
| 3 | ALLIANCEBERNSTEIN L.P. | 686K | $19.6M | +73.5% | 3.210% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 707K | $18.0M | β | 3.309% | 0.00% |
| 5 | Schonfeld Strategic Advisors LLC | 657K | $16.7M | +196.0% | 3.071% | 0.12% |
| 6 | FRANKLIN RESOURCES INC | 542K | $13.8M | +76.1% | 2.537% | 0.00% |
| 7 | GOLDMAN SACHS GROUP INC | 413K | $10.5M | +212.9% | 1.934% | 0.00% |
| 8 | DRIEHAUS CAPITAL MANAGEMENT LLC | 381K | $9.7M | β | 1.781% | 0.07% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 298K | $7.6M | +185.6% | 1.392% | 0.00% |
| 10 | SILVERCREST ASSET MANAGEMENT GROUP LLC | 282K | $7.2M | +49.6% | 1.321% | 0.05% |
| 11 | First Eagle Investment Management, LLC | 279K | $7.1M | +47.1% | 1.306% | 0.01% |
| 12 | STATE STREET CORP | 260K | $6.6M | +207.9% | 1.217% | 0.00% |
| 13 | WASATCH ADVISORS INC | 254K | $6.5M | +16.9% | 1.190% | 0.04% |
| 14 | Polar Asset Management Partners Inc. | 201K | $5.1M | +671.8% | 0.942% | 0.11% |
| 15 | NEEDHAM INVESTMENT MANAGEMENT LLC | 200K | $5.1M | β | 0.936% | 0.26% |
| 16 | S Squared Technology, LLC | 193K | $4.9M | β | 0.902% | 1.85% |
| 17 | MILLENNIUM MANAGEMENT LLC | 178K | $4.5M | +186.3% | 0.831% | 0.00% |
| 18 | UBS Group AG | 166K | $4.2M | +363.4% | 0.776% | 0.00% |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | 159K | $4.0M | β | 0.743% | 0.00% |
| 20 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 156K | $4.0M | +25.9% | 0.728% | 0.21% |
| 21 | SOFTBANK GROUP CORP | 149K | $3.8M | 0.0% | 0.697% | 0.03% |
| 22 | Roubaix Capital, LLC | 126K | $3.2M | β | 0.589% | 1.49% |
| 23 | NORTHERN TRUST CORP | 111K | $2.8M | +446.5% | 0.519% | 0.00% |
| 24 | GILDER GAGNON HOWE & CO LLC | 110K | $2.8M | +16.9% | 0.513% | 0.03% |
| 25 | Monashee Investment Management LLC | 104K | $2.6M | +21.9% | 0.485% | 1.43% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in AMBQ β a direct measure of their conviction.
Filings activity in AMBQ during Q1 2026, grouped by how each filer changed its position.
3 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 95 | +28% | 13.65% | +6.23 pp | $247M | +84% |
| Q4 2025 | 74 | +1.4% | 7.42% | 0.01 pp | $134M | 0.2% |
| Q3 2025 | 73 | β | 7.43% | β | $135M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AMBQ stock.
Based on Q1 2026 13F filings, institutional ownership of Ambiq Micro, Inc. stands at 13.7%, held across 95 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AMBQ, with approximately 1,013,161 shares worth $0.03B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of AMBQ, including Atreides Management, LP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for AMBQ is 71 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
36 institutions opened new positions in AMBQ during Q1 2026, while 15 fully exited. 46 added to existing positions and 13 trimmed.
AMBQ institutional ownership rose by 6.23 percentage points quarter-over-quarter, with a net change of +21 holders.
The top 10 institutions account for 60.9% of all reported 13F value in AMBQ, and the top 25 account for 88.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Ambiq Micro, Inc. (AMBQ) Institutional Ownership