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Amprius Technologies (AMPX) Institutional Ownership

Amprius Technologies logo
$8.19 +0.28 (+3.53%)
Closing price 10/23/2026 03:59 PM Eastern
Extended Trading
$8.15 -0.04 (-0.46%)
As of 10/23/2026 07:59 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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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)
144
Total
Institutional Inflows
(last 12 months)
$282.27M
Number of
Institutional Sellers
(last 12 months)
45
Total
Institutional Outflows
(last 12 months)
$58.55M
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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
10/24/2026 Kingswood Wealth Advisors LLC20,874$202K0.0%-56.9%0.015%
10/23/2026 Sterling Capital Management LLC4,575$44K0.0%+847.2%0.003%
10/23/2026 Inspire Investing LLC64,702$626K0.0%+31.2%0.046%
10/19/2026 Hidden Cove Wealth Management LLC21,913$212K0.1%+24.3%0.015%
10/16/2026 TD Waterhouse Canada Inc.10,105$97K0.0%+380.0%0.007%
10/16/2026 SLT Holdings LLC122,250$1.18M0.7%+3.8%0.086%
10/15/2026 State of Alaska Department of Revenue8,764$84K0.0%N/A0.006%
10/14/2026 B. Riley Wealth Advisors Inc.50,285$487K0.0%+4.5%0.036%
10/13/2026 Bouvel Investment Partners LLC187,681$1.82M0.4%+89.0%0.133%
10/8/2026 Zevenbergen Capital Investments LLC52,050$504K0.0%-86.4%0.037%
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%
8/22/2026 TD 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%
7/8/2026 FNY 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%
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5/7/2026AlphaCentric Advisors LLC60,000$1.01M1.0%+20.0%0.044%
5/7/2026 KBC 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%
5/5/2026 Sigma 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%
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%
4/27/2026 Counterpoint Mutual Funds LLC32,490$548K0.1%-1.7%0.024%
4/27/2026 Y Intercept Hong Kong Ltd164,224$2.77M0.1%N/A0.120%
4/25/2026 Mitchell & Pahl Private Wealth LLC10,000$169K0.1%N/A0.007%
4/23/2026 Inspire 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%
2/18/2026 Inspire 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%
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2/13/2026 Essex 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%


AMPX Institutional Ownership - Frequently Asked Questions

During the previous two years, 198 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 184 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 27,634,127 shares in the last 24 months. This purchase volume represents approximately $282.27M 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), Zevenbergen Capital Investments LLC ($329.37K), Voloridge Investment Management LLC ($274.14K), and Baird Financial Group Inc. ($260.19K).

Institutional investors have sold a total of 6,100,283 shares in the last 24 months. This volume of shares sold represents approximately $58.55M 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 10/24/2026. New 13F filings are added each quarter as they're published.
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