Security record
AMPX
Amprius Technologies, Inc. · Industrials · Electrical Equipment & Parts
102Tracked holders
+11Δ holders
75.37MShares held
$1.04BReported value
+15New positions
−4Exits
Momentum inputs (comparable managers):
holder breadth +12.1% ·
share flow +21.7% ·
net new positions +10.8%
— 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
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 102 | +11 | 75.37M | $1.04B | +15 | −4 |
| Q1 2026 | 94 | +14 | 62.16M | $1.04B | +16 | −3 |
| Q4 2025 | 81 | -2 | 49.31M | $389.08M | +1 | −2 |
| Q3 2025 | 17 | +2 | 29.27M | $307.95M | +2 | — |
| Q2 2025 | 12 | +1 | 20.97M | $88.27M | +1 | — |
| Q1 2025 | 8 | +1 | 3.89M | $10.43M | +1 | — |
| Q4 2024 | 7 | +2 | 2.99M | $8.36M | +2 | — |
| Q3 2024 | 4 | -1 | 702.69K | $780,036 | +1 | −2 |
| Q2 2024 | 5 | — | 946.88K | $1.20M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 11.34M | +22.9% | $157.10M | 0.0% | ▲ Add | 5 | SEC ↗ ×14 |
| 2 | Vanguard Capital Management Llc | 5.56M | +13.3% | $77.10M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Morgan Stanley ✦ | 5.11M | +61.5% | $70.76M | 0.0% | ▲ Add | 4 | SEC ↗ ×6 |
| 4 | Two Sigma Investments ✦ | 4.32M | +23.2% | $59.86M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 5 | UBS Group AG | 4.07M | +76.2% | $56.44M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 6 | Geode Capital Management ✦ (passive) | 3.52M | +25.1% | $48.81M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 7 | Jane Street Group, Llc | 3.40M | -18.3% | $47.14M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 8 | State Street Global Advisors ✦ (passive) | 3.24M | +19.4% | $44.91M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 9 | Goldman Sachs Group ✦ | 2.54M | +14.2% | $35.24M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 10 | LMR Partners LLP | 1.75M | New | $24.27M | 0.2% | New | 1 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 1.68M | +16.5% | $23.23M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 12 | T. Rowe Price ✦ | 1.64M | -13.8% | $22.68M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 13 | Renaissance Technologies ✦ | 1.41M | +291.9% | $19.53M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 14 | Baird Financial Group, Inc. | 1.32M | -16.4% | $18.36M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 15 | Healthcare Of Ontario Pension Plan… | 1.25M | New | $17.31M | 0.0% | New | 1 | SEC ↗ |
| 16 | Northern Trust Corp | 1.23M | +20.2% | $17.04M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 17 | Millennium Management ✦ | 1.21M | +16.7% | $16.74M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 18 | Deutsche Bank Ag\ | 1.20M | +36.7% | $16.58M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 19 | Barclays Plc | 1.18M | +11.9% | $16.37M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 20 | Charles Schwab Investment… | 1.18M | +13.2% | $16.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | Point72 Asset Management ✦ | 1.14M | +3982.3% | $15.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 22 | Qube Research & Technologies Ltd | 1.14M | -7.5% | $15.75M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | Susquehanna International Group, Llp | 1.10M | +1133.9% | $15.25M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 24 | First Trust Advisors Lp | 1.04M | +162.9% | $14.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Tudor Investment Corp Et Al | 747.43K | +78.1% | $10.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | IMC-Chicago, LLC | 734.11K | +1071.2% | $10.17M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 27 | Stifel Financial Corp | 731.47K | -0.2% | $10.14M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 28 | D. E. Shaw & Co. ✦ | 671.81K | -37.5% | $9.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | Invesco Ltd. | 571.61K | +14.6% | $7.92M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 30 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 523.06K | +6.8% | $7.25M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 31 | Massachusetts Financial Services Co… | 506.27K | -75.0% | $7.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Sei Investments Co | 443.23K | -23.5% | $6.14M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 33 | Federated Hermes, Inc. | 428.69K | +152.5% | $5.94M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Bank of New York Mellon Corp | 417.42K | +39.7% | $5.79M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 35 | HighTower Advisors, LLC | 416.43K | +3681.3% | $5.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Nuveen, LLC | 397.80K | +63.1% | $5.51M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 37 | Wellington Management ✦ | 342.80K | New | $4.75M | 0.0% | New | 1 | SEC ↗ |
| 38 | Allspring Global Investments… | 345.97K | -19.8% | $4.70M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 39 | Bank Of America Corp /De/ | 327.85K | +23.5% | $4.54M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 40 | Credit Agricole S A | 265.19K | New | $3.68M | 0.0% | New | 1 | SEC ↗ ×2 |
| 41 | Hsbc Holdings Plc | 259.51K | New | $3.62M | 0.0% | New | 1 | SEC ↗ ×2 |
| 42 | Swiss National Bank | 247.50K | +6.5% | $3.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | UBS AM, a distinct business unit of… | 220.10K | -2.3% | $3.05M | 0.0% | ▼ Trim | 3 | SEC ↗ ×9 |
| 44 | Group One Trading Llc | 213.31K | New | $2.96M | 0.1% | New | 1 | SEC ↗ |
| 45 | Russell Investments Group, Ltd. | 202.96K | -62.6% | $2.81M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 46 | Wells Fargo & Company/Mn | 197.77K | +115.2% | $2.74M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 47 | Amundi | 196.77K | +19.6% | $2.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Blair William & Co/Il | 194.71K | +53.8% | $2.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | Alliancebernstein L.P. | 152.06K | +40.5% | $2.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | New York State Common Retirement… | 184.23K | +11.2% | $2.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Bnp Paribas Financial Markets | 183.63K | -35.9% | $2.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | AQR Capital Management ✦ | 173.16K | +25.7% | $2.40M | 0.0% | ▲ Add | 9 | SEC ↗ ×5 |
| 53 | Rhumbline Advisers | 167.96K | +27.2% | $2.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Voya Investment Management Llc | 158.66K | +250.0% | $2.20M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 55 | Hrt Financial Lp | 150.20K | -85.0% | $2.08M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | LPL Financial LLC | 147.23K | +9.2% | $2.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Marshall Wace ✦ | 131.20K | -89.3% | $1.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 123.38K | -89.9% | $1.74M | 0.0% | ▼ Trim | 4 | SEC ↗ ×4 |
| 59 | Canada Pension Plan Investment Board | 119.60K | New | $1.66M | 0.0% | New | 1 | SEC ↗ |
| 60 | Royal Bank Of Canada | 115.32K | +13.2% | $1.60M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 61 | Nomura Holdings Inc | 109.81K | New | $1.52M | 0.0% | New | 1 | SEC ↗ |
| 62 | Legal & General Group Plc | 107.92K | +24.2% | $1.50M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 63 | Citigroup Inc | 101.10K | +662.7% | $1.40M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 64 | Franklin Resources Inc | 84.91K | -9.7% | $1.18M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 65 | Manufacturers Life Insurance… | 69.73K | +18.6% | $966,416 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Parallax Volatility Advisers, L.P. | 69.68K | +70.9% | $965,737 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | Squarepoint Ops LLC | 69.21K | -70.2% | $959,264 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 68 | Peak6 Llc | 66.77K | New | $925,377 | 0.0% | New | 1 | SEC ↗ |
| 69 | Ameriprise Financial Inc | 54.07K | -10.2% | $749,423 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 70 | Osaic Holdings, Inc. | 49.21K | -71.0% | $681,989 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 71 | Mirae Asset Global Investments Co.… | 44.72K | -5.9% | $619,833 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Zurcher Kantonalbank (Zurich… | 43.12K | -14.0% | $597,657 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Creative Planning | 37.92K | +1.6% | $525,613 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 74 | Envestnet Asset Management Inc | 36.72K | +30.7% | $508,953 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | Raymond James Financial Inc | 32.67K | -73.3% | $452,834 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 76 | Capstone Investment Advisors, Llc | 32.39K | New | $448,925 | 0.0% | New | 1 | SEC ↗ |
| 77 | Tidal Investments LLC | 30.98K | +50.1% | $429,314 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Cetera Investment Advisers | 30.65K | +34.6% | $424,823 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | State Of Wisconsin Investment Board | 29.59K | +158.2% | $410,104 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | Quantinno Capital Management LP | 27.20K | +93.6% | $377,006 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Holocene Advisors, LP | 27.19K | New | $376,840 | 0.0% | New | 1 | SEC ↗ |
| 82 | National Bank Of Canada /Fi/ | 25.00K | New | $346,500 | 0.0% | New | 1 | SEC ↗ |
| 83 | Prudential Financial Inc | 22.32K | +24.8% | $309,355 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Wealthfront Advisers LLC | 21.74K | +96.6% | $301,358 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | State Board Of Administration Of… | 21.04K | 0.0% | $291,614 | 0.0% | Held | 2 | SEC ↗ |
| 86 | Corient Private Wealth LP | 19.77K | +23.6% | $274,054 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | Commonwealth Equity Services, Llc | 19.05K | -31.2% | $263,960 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 88 | Mercer Global Advisors Inc /Adv | 18.89K | New | $261,802 | 0.0% | New | 1 | SEC ↗ |
| 89 | ProShare Advisors LLC | 18.00K | +7.8% | $249,480 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Pictet Asset Management Holding SA | 16.10K | 0.0% | $223,132 | 0.0% | Held | 3 | SEC ↗ |
| 91 | Fidelity (FMR) ✦ | 15.40K | +24.7% | $213,492 | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 92 | Victory Capital Management Inc | 14.57K | +9.0% | $201,926 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Principal Financial Group Inc | 10.51K | -58.6% | $145,682 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 94 | Jones Financial Companies Lllp | 10.89K | +12.3% | $140,564 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | Mitsubishi UFJ Trust & Banking Corp | 5.89K | New | $81,622 | 0.0% | New | 1 | SEC ↗ |
| 96 | Rockefeller Capital Management L.P. | 3.33K | +90.5% | $46,224 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 97 | BNP Paribas Asset Management… | 2.07K | -6.9% | $28,704 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | TD Waterhouse Canada Inc. | 2.10K | +355.6% | $28,609 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Pnc Financial Services Group, Inc. | 1.54K | -21.9% | $21,344 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 100 | Us Bancorp \De\ | 1.31K | +167.5% | $18,129 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| LMR Partners LLP | $24.27M | 0.2% |
| Healthcare Of Ontario Pension… | $17.31M | 0.0% |
| Wellington Management | $4.75M | 0.0% |
| Credit Agricole S A | $3.68M | 0.0% |
| Hsbc Holdings Plc | $3.62M | 0.0% |
| Group One Trading Llc | $2.96M | 0.1% |
| Canada Pension Plan… | $1.66M | 0.0% |
| Nomura Holdings Inc | $1.52M | 0.0% |
| Peak6 Llc | $925,377 | 0.0% |
| Capstone Investment Advisors… | $448,925 | 0.0% |
| Holocene Advisors, LP | $376,840 | 0.0% |
| National Bank Of Canada /Fi/ | $346,500 | 0.0% |
Exited
| Arrowstreet Capital | $3.83M | was 0.0% |
| Focus Partners Wealth | $766,693 | was 0.0% |
| Gotham Asset Management | $666,257 | was 0.0% |
| Optiver Holding B.V. | $6,373 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 245 holders, 83.42M shares, $1.34B 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)
Aug 24
Stepien Thomas M
Officer, Director · 8.00K sh · $80,240
Aug 21
Sun Kang
Director · 62.10K sh · $642,186
Aug 21
Stepien Thomas M
Officer, Director · 23.53K sh · $243,313
Aug 21
Stefan Constantin Ionel
Officer · 29.68K sh · $306,931
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 10
SC 13G/A — JANE STREET GROUP, LLC
Jul 27
SC 13G/A — 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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