Security record
AMBQ
Ambiq Micro, Inc. · Technology · Semiconductors
72Tracked holders
+30Δ holders
10.61MShares held
$897.45MReported value
+31New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +30.0% ·
share flow +30.0% ·
net new positions +20.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 1.38M | +36.3% | $121.91M | 0.0% | ▲ Add | 4 | SEC ↗ ×8 |
| 2 | D. E. Shaw & Co. ✦ | 983.92K | New | $86.88M | 0.1% | New | 1 | SEC ↗ ×2 |
| 3 | State Street Global Advisors ✦ (passive) | 861.98K | +231.2% | $76.11M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Vanguard Capital Management Llc | 768.54K | +8.6% | $67.86M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Two Sigma Investments ✦ | 651.79K | +1671.5% | $57.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | Goldman Sachs Group ✦ | 446.95K | +8.1% | $39.47M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 7 | Geode Capital Management ✦ (passive) | 339.33K | +14.0% | $29.97M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 8 | Jane Street Group, Llc | 294.80K | New | $26.03M | 0.0% | New | 1 | SEC ↗ ×2 |
| 9 | Millennium Management ✦ | 289.21K | +62.9% | $25.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Neuberger Berman Group LLC | 272.13K | New | $24.03M | 0.0% | New | 1 | SEC ↗ ×2 |
| 11 | First Eagle Investment Management… | 244.39K | -12.4% | $21.58M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | Hrt Financial Lp | 225.64K | New | $19.92M | 0.0% | New | 1 | SEC ↗ |
| 13 | Franklin Resources Inc | 223.76K | -58.7% | $19.76M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 14 | Renaissance Technologies ✦ | 214.76K | +404.1% | $18.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Bnp Paribas Financial Markets | 204.18K | +5150.2% | $18.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | Bank Of America Corp /De/ | 203.27K | +323.2% | $17.95M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 17 | JPMorgan Chase ✦ | 200.79K | +162.4% | $17.08M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 18 | Morgan Stanley ✦ | 182.01K | +479.6% | $16.07M | 0.0% | ▲ Add | 4 | SEC ↗ ×6 |
| 19 | Alliancebernstein L.P. | 609.61K | -11.2% | $15.49M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Wellington Management ✦ | 168.14K | New | $14.85M | 0.0% | New | 1 | SEC ↗ ×2 |
| 21 | Deutsche Bank Ag\ | 165.37K | +618.7% | $14.60M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 22 | T. Rowe Price ✦ | 156.91K | +950.5% | $13.86M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 23 | Nuveen, LLC | 138.97K | +289.0% | $12.27M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 24 | Northern Trust Corp | 130.80K | +18.0% | $11.55M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 25 | Healthcare Of Ontario Pension Plan… | 126.03K | New | $11.13M | 0.0% | New | 1 | SEC ↗ |
| 26 | Citadel Advisors ✦ | 122.42K | New | $10.81M | 0.0% | New | 1 | SEC ↗ ×2 |
| 27 | Marshall Wace ✦ | 109.49K | New | $9.67M | 0.0% | New | 1 | SEC ↗ ×3 |
| 28 | Barclays Plc | 99.69K | +2007.1% | $8.80M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 29 | Charles Schwab Investment… | 98.45K | +21.4% | $8.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Point72 Asset Management ✦ | 77.17K | New | $6.81M | 0.0% | New | 1 | SEC ↗ |
| 31 | Squarepoint Ops LLC | 63.23K | +603.5% | $5.58M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | LMR Partners LLP | 50.00K | New | $4.42M | 0.0% | New | 1 | SEC ↗ |
| 33 | Tudor Investment Corp Et Al | 49.51K | New | $4.37M | 0.0% | New | 1 | SEC ↗ |
| 34 | Bank of New York Mellon Corp | 48.66K | +15.8% | $4.30M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 35 | Fidelity (FMR) ✦ | 44.63K | +5749.8% | $3.94M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 36 | UBS Group AG | 35.79K | -78.4% | $3.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 37 | Sei Investments Co | 31.41K | New | $2.77M | 0.0% | New | 1 | SEC ↗ |
| 38 | Ameriprise Financial Inc | 23.82K | -35.2% | $2.10M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | Td Asset Management Inc | 22.76K | -4.3% | $2.01M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 40 | Rhumbline Advisers | 21.86K | +55.7% | $1.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | HighTower Advisors, LLC | 21.77K | +0.5% | $1.92M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 42 | Citigroup Inc | 21.00K | +389.1% | $1.85M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 43 | Wells Fargo & Company/Mn | 17.01K | +147.6% | $1.50M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 44 | Russell Investments Group, Ltd. | 12.27K | +763.3% | $1.08M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 45 | Stifel Financial Corp | 12.11K | -56.3% | $1.07M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 46 | Envestnet Asset Management Inc | 11.53K | New | $1.02M | 0.0% | New | 1 | SEC ↗ |
| 47 | Quantinno Capital Management LP | 10.88K | New | $960,527 | 0.0% | New | 1 | SEC ↗ |
| 48 | American Century Companies Inc | 10.63K | New | $938,629 | 0.0% | New | 1 | SEC ↗ |
| 49 | Alyeska Investment Group, L.P. | 10.33K | -86.8% | $912,051 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Invesco Ltd. | 10.21K | New | $901,101 | 0.0% | New | 1 | SEC ↗ ×2 |
| 51 | ProShare Advisors LLC | 9.23K | New | $814,745 | 0.0% | New | 1 | SEC ↗ |
| 52 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 8.56K | +0.8% | $756,025 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Susquehanna International Group, Llp | 7.73K | New | $682,206 | 0.0% | New | 1 | SEC ↗ |
| 54 | New York State Common Retirement… | 6.90K | +305.9% | $609,270 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 6.78K | New | $598,587 | 0.0% | New | 1 | SEC ↗ ×6 |
| 56 | Canada Pension Plan Investment Board | 5.50K | New | $485,650 | 0.0% | New | 1 | SEC ↗ |
| 57 | State Board Of Administration Of… | 5.44K | New | $479,999 | 0.0% | New | 1 | SEC ↗ |
| 58 | Manufacturers Life Insurance… | 4.92K | New | $434,083 | 0.0% | New | 1 | SEC ↗ |
| 59 | Royal Bank Of Canada | 4.49K | -61.3% | $397,000 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 60 | LPL Financial LLC | 4.49K | New | $396,555 | 0.0% | New | 1 | SEC ↗ |
| 61 | Voya Investment Management Llc | 3.59K | New | $316,997 | 0.0% | New | 1 | SEC ↗ |
| 62 | Bank Of Nova Scotia | 3.50K | New | $309,050 | 0.0% | New | 1 | SEC ↗ |
| 63 | Prudential Financial Inc | 3.02K | New | $267,108 | 0.0% | New | 1 | SEC ↗ |
| 64 | Mercer Global Advisors Inc /Adv | 2.60K | New | $229,757 | 0.0% | New | 1 | SEC ↗ |
| 65 | Us Bancorp \De\ | 2.50K | New | $220,661 | 0.0% | New | 1 | SEC ↗ ×2 |
| 66 | IMC-Chicago, LLC | 2.29K | New | $202,295 | 0.0% | New | 1 | SEC ↗ |
| 67 | Legal & General Group Plc | 1.80K | +13.9% | $159,293 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Group One Trading Llc | 883 | New | $77,969 | 0.0% | New | 1 | SEC ↗ |
| 69 | UBS AM, a distinct business unit of… | 227 | 0.0% | $20,044 | 0.0% | Held | 2 | SEC ↗ |
| 70 | Simplex Trading, Llc | 147 | +345.4% | $12,980 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Osaic Holdings, Inc. | 100 | -70.2% | $8,830 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Fifth Third Bancorp | 10 | New | $883 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $86.88M | 0.1% |
| Jane Street Group, Llc | $26.03M | 0.0% |
| Neuberger Berman Group LLC | $24.03M | 0.0% |
| Hrt Financial Lp | $19.92M | 0.0% |
| Wellington Management | $14.85M | 0.0% |
| Healthcare Of Ontario Pension… | $11.13M | 0.0% |
| Citadel Advisors | $10.81M | 0.0% |
| Marshall Wace | $9.67M | 0.0% |
| Point72 Asset Management | $6.81M | 0.0% |
| LMR Partners LLP | $4.42M | 0.0% |
| Tudor Investment Corp Et Al | $4.37M | 0.0% |
| Sei Investments Co | $2.77M | 0.0% |
Exited
| Lazard Asset Management Llc | $1.63M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 96 holders, 10.92M shares, $247.14M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Oct 05
Chen Sean Chihhsiang
Officer · 5.51K sh · $365,625
Oct 05
Chen Sean Chihhsiang
Officer · 100 sh · $6,951
Oct 05
Chen Sean Chihhsiang
Officer · 800 sh · $54,461
Oct 05
Chen Sean Chihhsiang
Officer · 1.80K sh · $120,913
Oct 02
Esaka Fumihide
Officer, Director · 862 sh · $61,943
Oct 02
Esaka Fumihide
Officer, Director · 8.59K sh · $598,994
Oct 02
Esaka Fumihide
Officer, Director · 7.11K sh · $491,567
Oct 02
Hanson Scott McLean
Officer, Director · 452 sh · $32,480
Oct 02
Hanson Scott McLean
Officer, Director · 4.50K sh · $313,975
Oct 02
Hanson Scott McLean
Officer, Director · 3.73K sh · $257,636
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — T. Rowe Price Investment Management…
Jul 27
SC 13G — BlackRock, Inc.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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