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Amprius Technologies (AMPX) Institutional Ownership

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$9.43 -0.24 (-2.50%)
Closing price 03:59 PM Eastern
Extended Trading
$9.46 +0.04 (+0.39%)
As of 07:07 PM Eastern
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Institutional Ownership Changes (13F Filings) for Amprius Technologies (NYSE:AMPX)

Current
Institutional Ownership
Percentage
5.04%
Number of
Institutional Buyers
(last 12 months)
141
Total
Institutional Inflows
(last 12 months)
$284.90M
Number of
Institutional Sellers
(last 12 months)
45
Total
Institutional Outflows
(last 12 months)
$55.25M
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AMPX Institutional Buying and Selling by Quarter

Amprius Technologies Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026Tidal Investments LLC30,975$429K0.0%+50.1%0.022%
9/9/2026Engineers Gate Manager LP15,857$220K0.0%-77.6%0.011%
9/9/2026Integrated Wealth Concepts LLC6,669$92K0.0%N/A0.005%
9/9/2026Baird Financial Group Inc.1,324,909$18.36M0.0%-16.4%0.935%
9/8/2026Allworth Financial LP4,527$63K0.0%+1,150.6%0.003%
9/8/2026Arizona State Retirement System34,027$472K0.0%+5.4%0.024%
9/8/2026Nykredit A S5,685$79K0.0%N/A0.004%
8/27/2026Corient Private Wealth LP19,573$271K0.0%+22.3%0.014%
8/22/2026TD Waterhouse Canada Inc.2,105$29K0.0%+355.6%0.001%
8/21/2026AXQ Capital LP11,102$154K0.0%-81.8%0.008%
8/21/2026Nykredit A S5,685$79K0.0%N/A0.004%
8/20/2026Headlands Technologies LLC36,716$509K0.1%+49.0%0.026%
8/19/2026Wellington Management Group LLP342,797$4.75M0.0%N/A0.242%
7/8/2026FNY Investment Advisers LLC39,302$544K0.2%+89.3%0.028%
6/3/2026Parallel Advisors LLC4,002$67K0.0%-21.9%0.003%
5/19/2026Bank of America Corp DE265,418$4.48M0.0%-11.5%0.187%
5/19/2026Janus Henderson Group PLC52,803$889K0.0%+35.2%0.037%
5/18/2026Amundi164,589$2.78M0.0%+17.3%0.116%
5/18/2026California State Teachers Retirement System159,903$2.70M0.0%+48.2%0.113%
5/18/2026Royal Bank of Canada101,914$1.72M0.0%+10.9%0.072%
5/16/2026The Manufacturers Life Insurance Company58,790$991K0.0%+76.7%0.042%
5/16/2026Quantinno Capital Management LP14,049$237K0.0%N/A0.010%
5/14/2026Renaissance Technologies LLC359,525$6.06M0.0%+218.7%0.262%
5/14/2026Arrowstreet Capital Limited Partnership227,132$3.83M0.0%N/A0.166%
5/14/2026Sei Investments Co.579,161$9.77M0.0%+34.1%0.423%
5/14/2026State of Wyoming6,041$102K0.0%+155.2%0.004%
5/13/2026Cetera Investment Advisers22,775$384K0.0%-44.1%0.017%
5/13/2026First Trust Advisors LP394,569$6.65M0.0%+1,105.0%0.288%
5/7/2026Earned Wealth Advisors LLC13,234$223K0.0%-5.3%0.010%
5/7/2026Parallel Advisors LLC4,002$67K0.0%-21.9%0.003%
5/7/2026AlphaCentric Advisors LLC60,000$1.01M1.0%+20.0%0.044%
5/7/2026KBC Group NV3,399$57K0.0%N/A0.002%
5/7/2026Swiss National Bank232,400$3.92M0.0%+4.7%0.170%
5/6/2026Allspring Global Investments Holdings LLC431,398$6.70M0.0%+700.2%0.315%
5/5/2026Wealthfront Advisers LLC11,061$186K0.0%-22.9%0.008%
5/5/2026Bank of New York Mellon Corp298,865$5.04M0.0%-3.5%0.218%
5/5/2026Geneos Wealth Management Inc.17,140$289K0.0%+60.9%0.013%
5/5/2026Sigma Planning Corp30,285$511K0.0%N/A0.022%
5/4/2026Calamos Advisors LLC364,506$6.15M0.0%+206.2%0.266%
5/4/2026Principal Financial Group Inc.25,382$428K0.0%N/A0.019%
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4/29/2026Richmond Investment Services LLC39,994$674K0.1%+268.3%0.029%
4/28/2026Stephens Investment Management Group LLC893,108$15.06M0.2%-38.1%0.652%
4/27/2026Counterpoint Mutual Funds LLC32,490$548K0.1%-1.7%0.024%
4/27/2026Y Intercept Hong Kong Ltd164,224$2.77M0.1%N/A0.120%
4/25/2026Mitchell & Pahl Private Wealth LLC10,000$169K0.1%N/A0.007%
4/23/2026Inspire Investing LLC31,051$524K0.0%-48.5%0.023%
4/16/2026SG Americas Securities LLC423,037$7.13M0.0%+65.7%0.309%
3/3/2026Caitong International Asset Management Co. Ltd8,362$66K0.0%-45.1%0.006%
2/19/2026Invesco Ltd.1,311,915$10.35M0.0%-44.9%1.005%
2/19/2026Alberta Investment Management Corp126,900$1.00M0.0%N/A0.097%
2/18/2026Vident Advisory LLC13,564$107K0.0%N/A0.010%
2/18/2026Voloridge Investment Management LLC1,602,001$12.64M0.0%-14.6%1.228%
2/18/2026Summit Securities Group LLC6,850$54K0.0%N/A0.005%
2/18/2026Numerai GP LLC96,209$759K0.1%+29.1%0.074%
2/18/2026Osterweis Capital Management Inc.454,830$3.59M0.2%+142.6%0.349%
2/18/2026Inspire Investing LLC60,242$475K0.0%+37.4%0.046%
2/18/2026Engineers Gate Manager LP360,401$2.84M0.0%+90.9%0.276%
2/17/2026Polar Asset Management Partners Inc.78,600$620K0.0%N/A0.060%
2/17/2026AQR Capital Management LLC136,099$1.07M0.0%+3.5%0.104%
2/17/2026Trexquant Investment LP31,010$245K0.0%-87.6%0.024%
2/17/2026Amundi140,306$1.11M0.0%N/A0.108%
2/17/2026Jump Financial LLC10,381$82K0.0%-95.7%0.008%
2/17/2026Price T Rowe Associates Inc. MD80,578$636K0.0%+64.1%0.062%
2/17/2026California State Teachers Retirement System107,930$852K0.0%+29.1%0.083%
2/17/2026Russell Investments Group Ltd.235,019$1.85M0.0%-23.0%0.180%
2/17/2026Lombard Odier Asset Management USA Corp23,942$189K0.0%N/A0.018%
2/17/2026Granahan Investment Management LLC64,382$508K0.0%N/A0.049%
2/17/2026ExodusPoint Capital Management LP26,560$210K0.0%N/A0.020%
2/17/2026Royal Bank of Canada91,916$726K0.0%-27.8%0.070%
2/17/2026Blair William & Co. IL40,152$317K0.0%+62.0%0.031%
2/17/2026Mangrove Partners IM LLC116,624$920K0.1%N/A0.089%
2/17/2026Graham Capital Management L.P.49,596$391K0.0%+3.2%0.038%
2/17/2026Alberta Investment Management Corp126,900$1.00M0.0%N/A0.097%
2/17/2026Faithward Advisors LLC101,175$798K0.1%N/A0.078%
2/16/2026Squarepoint Ops LLC218,046$1.72M0.0%+278.5%0.167%
2/16/2026Verition Fund Management LLC292,097$2.31M0.0%-9.7%0.224%
2/13/2026FORA Capital LLC38,928$307K0.0%+190.7%0.030%
2/13/2026The Manufacturers Life Insurance Company 33,280$263K0.0%+5.1%0.026%
2/13/2026Walleye Capital LLC269,406$2.13M0.0%+106.0%0.206%
2/13/2026Bridgefront Capital LLC20,609$163K0.0%N/A0.016%
2/13/2026Essex Investment Management Co. LLC516,765$4.08M0.6%-25.9%0.396%
2/13/2026First Trust Advisors LP32,744$258K0.0%+6.7%0.025%
2/13/2026Charles Schwab Investment Management Inc.1,036,891$8.18M0.0%+6.4%0.795%
2/13/2026Police & Firemen s Retirement System of New Jersey29,606$234K0.0%+10.0%0.023%
2/13/2026State Street Corp2,553,710$20.15M0.0%+16.6%1.957%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC188,844$1.49M0.0%+62.1%0.145%
2/13/2026Wells Fargo & Company MN142,355$1.12M0.0%+142.3%0.109%
2/12/2026DRW Securities LLC23,321$184K0.0%+42.0%0.018%
2/12/2026Orion Porfolio Solutions LLC10,919$86K0.0%N/A0.008%
2/12/2026MetLife Investment Management LLC60,513$477K0.0%+4.0%0.046%
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2/12/2026Richmond Investment Services LLC10,858$86K0.0%-26.6%0.008%
2/12/2026Commonwealth Equity Services LLC21,577$170K0.0%N/A0.017%
2/12/2026Renaissance Technologies LLC112,825$890K0.0%+809.9%0.086%
2/12/2026Counterpoint Mutual Funds LLC33,040$261K0.0%-30.6%0.025%
2/12/2026Federated Hermes Inc.286,658$2.26M0.0%+212.3%0.220%
2/12/2026AlphaCentric Advisors LLC50,000$394K0.4%N/A0.038%
2/12/2026Informed Momentum Co LLC236,810$1.87M0.2%-51.5%0.181%
2/12/2026Alps Advisors Inc.147,062$1.16M0.0%-1.2%0.113%
2/12/2026Swiss National Bank222,000$1.75M0.0%+26.6%0.170%
2/12/2026Polen Capital Management LLC288,290$2.28M0.0%-15.1%0.221%


AMPX Institutional Ownership - Frequently Asked Questions

During the previous two years, 193 institutional investors and hedge funds held shares of Amprius Technologies. The most heavily invested institutionals were Vanguard Group Inc. ($56.25M), Geode Capital Management LLC ($21.14M), State Street Corp ($20.15M), Two Sigma Investments LP ($18.45M), Baird Financial Group Inc. ($18.36M), Goldman Sachs Group Inc. ($17.32M), and UBS Group AG ($16.56M).Learn more on Amprius Technologies' institutional investors.

5.04% of Amprius Technologies' stock is owned by institutional investors. Learn more on AMPX's institutional investor holdings.

Of the 180 institutional investors that purchased Amprius Technologies' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Vanguard Group Inc. ($2.37M), Invesco Ltd. ($2.16M), BNP Paribas Financial Markets ($1.94M), Voloridge Investment Management LLC ($1.88M), Geode Capital Management LLC ($1.47M), Board of Trustees of The Leland Stanford Junior University ($1.46M), and Stephens Investment Management Group LLC ($1.44M).

Institutional investors have bought a total of 27,874,332 shares in the last 24 months. This purchase volume represents approximately $284.90M in transactions.

Of the 45 institutional investors that sold Amprius Technologies' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: BNP Paribas Financial Markets ($1.24M), Invesco Ltd. ($1.07M), Stephens Investment Management Group LLC ($548.59K), Essex Investment Management Co. LLC ($508.59K), Voloridge Investment Management LLC ($274.14K), Baird Financial Group Inc. ($260.19K), and Informed Momentum Co LLC ($251.72K).

Institutional investors have sold a total of 5,760,117 shares in the last 24 months. This volume of shares sold represents approximately $55.25M in transactions.


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Institutional ownership data for NYSE:AMPX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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