Security record · archived quarter
AMPX
Amprius Technologies, Inc. · Industrials · Electrical Equipment & Parts
94Tracked holders
+14Δ holders
62.16MShares held
$1.04BReported value
+16New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth +17.5% ·
share flow +30.0% ·
net new positions +13.8%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 10.11K | $97,010 | n/a | n/a |
| 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 | n/a |
| Q2 2025 | 12 | +1 | 20.97M | $88.27M | +1 | n/a |
| Q1 2025 | 8 | +1 | 3.89M | $10.43M | +1 | n/a |
| Q4 2024 | 7 | +2 | 2.99M | $8.36M | +2 | n/a |
| Q3 2024 | 4 | -1 | 702.69K | $780,036 | +1 | −2 |
| Q2 2024 | 5 | n/a | 946.88K | $1.20M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 9.23M | +4.5% | $155.54M | 0.0% | ▲ Add | 4 | SEC ↗ ×14 |
| 2 | Vanguard Capital Management Llc | 4.91M | n/a | $82.76M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Jane Street Group, Llc | 4.16M | +1849.5% | $70.15M | 0.1% | ▲ Add | 2 | SEC ↗ ×3 |
| 4 | Two Sigma Investments ✦ | 3.51M | +144.0% | $59.11M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 5 | Morgan Stanley ✦ | 3.16M | +12.5% | $53.31M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 6 | Geode Capital Management ✦ (passive) | 2.81M | +5.1% | $47.46M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | State Street Global Advisors ✦ (passive) | 2.71M | +6.2% | $45.73M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 8 | UBS Group AG | 2.31M | +10.1% | $38.97M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 9 | Goldman Sachs Group ✦ | 2.23M | +1.4% | $37.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 10 | Massachusetts Financial Services Co… | 2.02M | New | $34.14M | 0.0% | New | 1 | SEC ↗ |
| 11 | T. Rowe Price ✦ | 1.90M | +2254.8% | $31.99M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 12 | Baird Financial Group, Inc. | 1.59M | +104.9% | $26.72M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 13 | Citadel Advisors ✦ | 1.44M | +216.3% | $24.26M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 14 | Marshall Wace ✦ | 1.23M | New | $20.70M | 0.0% | New | 1 | SEC ↗ ×4 |
| 15 | Qube Research & Technologies Ltd | 1.23M | +40.4% | $20.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | D. E. Shaw & Co. ✦ | 1.08M | New | $18.13M | 0.0% | New | 1 | SEC ↗ |
| 17 | JPMorgan Chase ✦ | 1.22M | +1357.4% | $17.90M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 18 | Barclays Plc | 1.05M | +124.5% | $17.79M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 19 | Charles Schwab Investment… | 1.04M | +0.2% | $17.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Millennium Management ✦ | 1.04M | -4.6% | $17.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 21 | Northern Trust Corp | 1.02M | +6.2% | $17.24M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 22 | Hrt Financial Lp | 1.00M | New | $16.90M | 0.0% | New | 1 | SEC ↗ |
| 23 | Deutsche Bank Ag\ | 875.03K | -55.2% | $14.75M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 24 | Stifel Financial Corp | 733.17K | -5.0% | $12.36M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 25 | Sei Investments Co | 579.16K | +34.1% | $9.76M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 26 | Russell Investments Group, Ltd. | 543.46K | +131.2% | $9.16M | 0.0% | ▲ Add | 2 | SEC ↗ ×9 |
| 27 | Invesco Ltd. | 498.80K | -62.0% | $8.41M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 28 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 489.65K | -0.2% | $8.26M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | Tudor Investment Corp Et Al | 419.66K | New | $7.08M | 0.0% | New | 1 | SEC ↗ |
| 30 | Allspring Global Investments… | 431.40K | +700.2% | $6.70M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 31 | First Trust Advisors Lp | 394.57K | +1105.0% | $6.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Renaissance Technologies ✦ | 359.52K | +218.7% | $6.06M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 33 | Bank of New York Mellon Corp | 298.87K | -3.5% | $5.04M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 34 | Bnp Paribas Financial Markets | 286.55K | -59.5% | $4.83M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Bank Of America Corp /De/ | 265.42K | -11.5% | $4.47M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | Nuveen, LLC | 243.90K | +4.6% | $4.11M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 37 | Swiss National Bank | 232.40K | +4.7% | $3.92M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 38 | Squarepoint Ops LLC | 232.11K | +6.5% | $3.91M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | Arrowstreet Capital ✦ | 227.13K | New | $3.83M | 0.0% | New | 1 | SEC ↗ |
| 40 | UBS AM, a distinct business unit of… | 225.22K | +19.3% | $3.80M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 41 | Federated Hermes, Inc. | 169.75K | -40.8% | $2.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | Osaic Holdings, Inc. | 169.49K | +1854.9% | $2.86M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 43 | New York State Common Retirement… | 165.63K | +458.9% | $2.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 44 | Amundi | 164.59K | +17.3% | $2.77M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | California State Teachers… | 159.90K | +48.1% | $2.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | AQR Capital Management ✦ | 137.73K | +1.2% | $2.32M | 0.0% | ▲ Add | 8 | SEC ↗ ×5 |
| 47 | LPL Financial LLC | 134.78K | +17.5% | $2.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Rhumbline Advisers | 132.09K | +5.5% | $2.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Blair William & Co/Il | 126.62K | +215.4% | $2.13M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Raymond James Financial Inc | 122.29K | -45.5% | $2.06M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 51 | Royal Bank Of Canada | 101.91K | +10.9% | $1.72M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 52 | Franklin Resources Inc | 94.00K | +19.2% | $1.58M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 53 | Wells Fargo & Company/Mn | 91.91K | -35.4% | $1.55M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 54 | Susquehanna International Group, Llp | 89.17K | -94.7% | $1.50M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 55 | Legal & General Group Plc | 86.86K | -15.0% | $1.46M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 56 | IMC-Chicago, LLC | 62.68K | New | $1.06M | 0.0% | New | 1 | SEC ↗ |
| 57 | Ameriprise Financial Inc | 60.18K | -22.9% | $993,054 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 58 | Manufacturers Life Insurance… | 58.79K | +76.7% | $991,199 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Janus Henderson Group Plc | 52.80K | +35.2% | $889,467 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 60 | Parallax Volatility Advisers, L.P. | 40.78K | New | $873,851 | 0.0% | New | 1 | SEC ↗ |
| 61 | Alliancebernstein L.P. | 108.26K | -12.6% | $854,171 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 62 | Zurcher Kantonalbank (Zurich… | 50.13K | +18.0% | $845,242 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | Mirae Asset Global Investments Co.… | 47.51K | -15.3% | $800,951 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Focus Partners Wealth | 45.47K | +106.3% | $766,693 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Voya Investment Management Llc | 45.33K | +134.0% | $764,297 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 66 | Gotham Asset Management ✦ | 39.52K | New | $666,257 | 0.0% | New | 1 | SEC ↗ |
| 67 | Creative Planning | 37.34K | +50.8% | $629,485 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | Envestnet Asset Management Inc | 28.09K | +75.5% | $473,682 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Point72 Asset Management ✦ | 27.92K | -94.3% | $470,748 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Commonwealth Equity Services, Llc | 27.67K | +28.3% | $466,580 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Principal Financial Group Inc | 25.38K | New | $427,940 | 0.0% | New | 1 | SEC ↗ ×2 |
| 72 | Cetera Investment Advisers | 22.77K | -25.9% | $383,987 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 73 | State Board Of Administration Of… | 21.04K | New | $354,734 | 0.0% | New | 1 | SEC ↗ |
| 74 | Tidal Investments LLC | 20.63K | -2.2% | $347,856 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Prudential Financial Inc | 17.89K | -56.6% | $301,625 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 76 | ProShare Advisors LLC | 16.70K | -17.2% | $281,478 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Pictet Asset Management Holding SA | 16.10K | 0.0% | $271,429 | 0.0% | Held | 2 | SEC ↗ |
| 78 | Corient Private Wealth LP | 16.00K | New | $269,745 | 0.0% | New | 1 | SEC ↗ |
| 79 | Quantinno Capital Management LP | 14.05K | New | $236,866 | 0.0% | New | 1 | SEC ↗ |
| 80 | Victory Capital Management Inc | 13.36K | +4.2% | $225,266 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Citigroup Inc | 13.26K | -82.3% | $223,480 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 82 | Fidelity (FMR) ✦ | 12.35K | +37.5% | $208,214 | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 83 | State Of Wisconsin Investment Board | 11.46K | New | $193,249 | 0.0% | New | 1 | SEC ↗ |
| 84 | Wealthfront Advisers LLC | 11.06K | -22.9% | $186,488 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | HighTower Advisors, LLC | 11.01K | -21.5% | $185,677 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Jones Financial Companies Lllp | 9.69K | +1.8% | $156,235 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | Cwm, Llc | 4.19K | -6.9% | $70,576 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | BNP Paribas Asset Management… | 2.22K | +37.3% | $37,497 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Pnc Financial Services Group, Inc. | 1.97K | +32.5% | $33,231 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 90 | Rockefeller Capital Management L.P. | 1.75K | +365.7% | $29,523 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 91 | Us Bancorp \De\ | 489 | -98.7% | $8,245 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 92 | TD Waterhouse Canada Inc. | 462 | New | $7,170 | 0.0% | New | 1 | SEC ↗ |
| 93 | Optiver Holding B.V. | 378 | +7.4% | $6,373 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Fifth Third Bancorp | 286 | New | $4,822 | 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
| Massachusetts Financial… | $34.14M | 0.0% |
| Marshall Wace | $20.70M | 0.0% |
| D. E. Shaw & Co. | $18.13M | 0.0% |
| Hrt Financial Lp | $16.90M | 0.0% |
| Tudor Investment Corp Et Al | $7.08M | 0.0% |
| Arrowstreet Capital | $3.83M | 0.0% |
| IMC-Chicago, LLC | $1.06M | 0.0% |
| Parallax Volatility Advisers… | $873,851 | 0.0% |
| Gotham Asset Management | $666,257 | 0.0% |
| Principal Financial Group Inc | $427,940 | 0.0% |
| State Board Of Administration… | $354,734 | 0.0% |
| Corient Private Wealth LP | $269,745 | 0.0% |
Exited
| Norges Bank | $10.30M | was 0.0% |
| Canada Pension Plan… | $434,739 | was 0.0% |
| Universal- Beteiligungs- und… | $88,912 | 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: Q1 2026 ·
Methodology ·
Get this via the API