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Amprius Technologies (AMPX) Institutional Ownership

Amprius Technologies logo
$10.02 -0.17 (-1.62%)
As of 12:48 PM Eastern
This is a fair market value 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)
137
Total
Institutional Inflows
(last 12 months)
$309.37M
Number of
Institutional Sellers
(last 12 months)
43
Total
Institutional Outflows
(last 12 months)
$50.89M
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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
8/24/2026 California State Teachers Retirement System1,957,919$27.14M0.0%+1,124.4%1.382%
8/22/2026 TD Waterhouse Canada Inc.2,105$29K0.0%+355.6%0.001%
8/21/2026 AXQ Capital LP11,102$154K0.0%-81.8%0.008%
8/21/2026 Nykredit A S5,685$79K0.0%N/A0.004%
8/20/2026 Headlands Technologies LLC36,716$509K0.1%+49.0%0.026%
8/19/2026 Wellington Management Group LLP342,797$4.75M0.0%N/A0.242%
7/8/2026 FNY Investment Advisers LLC39,302$544K0.2%+89.3%0.028%
6/3/2026 Parallel Advisors LLC4,002$67K0.0%-21.9%0.003%
5/19/2026 Bank 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%
5/18/2026 Amundi164,589$2.78M0.0%+17.3%0.116%
5/18/2026 California State Teachers Retirement System159,903$2.70M0.0%+48.2%0.113%
5/18/2026 Royal Bank of Canada101,914$1.72M0.0%+10.9%0.072%
5/16/2026 The Manufacturers Life Insurance Company58,790$991K0.0%+76.7%0.042%
5/16/2026 Quantinno Capital Management LP14,049$237K0.0%N/A0.010%
5/14/2026 Renaissance Technologies LLC359,525$6.06M0.0%+218.7%0.262%
5/14/2026 Arrowstreet Capital Limited Partnership227,132$3.83M0.0%N/A0.166%
5/14/2026 Sei Investments Co.579,161$9.77M0.0%+34.1%0.423%
5/14/2026 State of Wyoming6,041$102K0.0%+155.2%0.004%
5/13/2026 Cetera Investment Advisers22,775$384K0.0%-44.1%0.017%
5/13/2026 First Trust Advisors LP394,569$6.65M0.0%+1,105.0%0.288%
5/7/2026 Earned Wealth Advisors LLC13,234$223K0.0%-5.3%0.010%
5/7/2026 Parallel Advisors LLC4,002$67K0.0%-21.9%0.003%
5/7/2026 AlphaCentric Advisors LLC60,000$1.01M1.0%+20.0%0.044%
5/7/2026 KBC Group NV3,399$57K0.0%N/A0.002%
5/7/2026 Swiss National Bank232,400$3.92M0.0%+4.7%0.170%
5/6/2026 Allspring Global Investments Holdings LLC431,398$6.70M0.0%+700.2%0.315%
5/5/2026 Wealthfront Advisers LLC11,061$186K0.0%-22.9%0.008%
5/5/2026 Bank of New York Mellon Corp298,865$5.04M0.0%-3.5%0.218%
5/5/2026 Geneos Wealth Management Inc.17,140$289K0.0%+60.9%0.013%
5/5/2026 Sigma Planning Corp30,285$511K0.0%N/A0.022%
5/4/2026 Calamos Advisors LLC364,506$6.15M0.0%+206.2%0.266%
5/4/2026 Principal Financial Group Inc.25,382$428K0.0%N/A0.019%
4/29/2026 Richmond Investment Services LLC39,994$674K0.1%+268.3%0.029%
4/28/2026 Stephens 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%
4/16/2026 SG Americas Securities LLC423,037$7.13M0.0%+65.7%0.309%
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3/3/2026 Caitong International Asset Management Co. Ltd8,362$66K0.0%-45.1%0.006%
2/19/2026 Invesco Ltd.1,311,915$10.35M0.0%-44.9%1.005%
2/19/2026 Alberta Investment Management Corp126,900$1.00M0.0%N/A0.097%
2/18/2026 Vident Advisory LLC13,564$107K0.0%N/A0.010%
2/18/2026 Voloridge Investment Management LLC1,602,001$12.64M0.0%-14.6%1.228%
2/18/2026 Summit Securities Group LLC6,850$54K0.0%N/A0.005%
2/18/2026 Numerai GP LLC96,209$759K0.1%+29.1%0.074%
2/18/2026 Osterweis 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%
2/18/2026 Engineers Gate Manager LP360,401$2.84M0.0%+90.9%0.276%
2/17/2026 Polar Asset Management Partners Inc.78,600$620K0.0%N/A0.060%
2/17/2026 AQR Capital Management LLC136,099$1.07M0.0%+3.5%0.104%
2/17/2026 Trexquant Investment LP31,010$245K0.0%-87.6%0.024%
2/17/2026 Amundi140,306$1.11M0.0%N/A0.108%
2/17/2026 Jump Financial LLC10,381$82K0.0%-95.7%0.008%
2/17/2026 Price T Rowe Associates Inc. MD80,578$636K0.0%+64.1%0.062%
2/17/2026 California State Teachers Retirement System107,930$852K0.0%+29.1%0.083%
2/17/2026 Russell Investments Group Ltd.235,019$1.85M0.0%-23.0%0.180%
2/17/2026 Lombard Odier Asset Management USA Corp23,942$189K0.0%N/A0.018%
2/17/2026 Granahan Investment Management LLC64,382$508K0.0%N/A0.049%
2/17/2026 ExodusPoint Capital Management LP26,560$210K0.0%N/A0.020%
2/17/2026 Royal Bank of Canada91,916$726K0.0%-27.8%0.070%
2/17/2026 Blair William & Co. IL40,152$317K0.0%+62.0%0.031%
2/17/2026 Mangrove Partners IM LLC116,624$920K0.1%N/A0.089%
2/17/2026 Graham Capital Management L.P.49,596$391K0.0%+3.2%0.038%
2/17/2026 Alberta Investment Management Corp126,900$1.00M0.0%N/A0.097%
2/17/2026 Faithward Advisors LLC101,175$798K0.1%N/A0.078%
2/16/2026 Squarepoint Ops LLC218,046$1.72M0.0%+278.5%0.167%
2/16/2026 Verition Fund Management LLC292,097$2.31M0.0%-9.7%0.224%
2/13/2026 FORA Capital LLC38,928$307K0.0%+190.7%0.030%
2/13/2026 The Manufacturers Life Insurance Company 33,280$263K0.0%+5.1%0.026%
2/13/2026 Walleye Capital LLC269,406$2.13M0.0%+106.0%0.206%
2/13/2026 Bridgefront Capital LLC20,609$163K0.0%N/A0.016%
2/13/2026 Essex Investment Management Co. LLC516,765$4.08M0.6%-25.9%0.396%
2/13/2026 First Trust Advisors LP32,744$258K0.0%+6.7%0.025%
2/13/2026 Charles Schwab Investment Management Inc.1,036,891$8.18M0.0%+6.4%0.795%
2/13/2026 Police & Firemen s Retirement System of New Jersey29,606$234K0.0%+10.0%0.023%
2/13/2026 State Street Corp2,553,710$20.15M0.0%+16.6%1.957%
2/13/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC188,844$1.49M0.0%+62.1%0.145%
2/13/2026 Wells Fargo & Company MN142,355$1.12M0.0%+142.3%0.109%
2/12/2026 DRW Securities LLC23,321$184K0.0%+42.0%0.018%
2/12/2026 Orion Porfolio Solutions LLC10,919$86K0.0%N/A0.008%
2/12/2026 MetLife Investment Management LLC60,513$477K0.0%+4.0%0.046%
2/12/2026 Richmond Investment Services LLC10,858$86K0.0%-26.6%0.008%
2/12/2026 Commonwealth Equity Services LLC21,577$170K0.0%N/A0.017%
2/12/2026 Renaissance Technologies LLC112,825$890K0.0%+809.9%0.086%
2/12/2026 Counterpoint Mutual Funds LLC33,040$261K0.0%-30.6%0.025%
2/12/2026 Federated Hermes Inc.286,658$2.26M0.0%+212.3%0.220%
2/12/2026 AlphaCentric Advisors LLC50,000$394K0.4%N/A0.038%
2/12/2026 Informed Momentum Co LLC236,810$1.87M0.2%-51.5%0.181%
Bezos… DOOMED (Ad)

A single FCC filing hints Elon Musk is planning his biggest project yet - bigger than Tesla, SpaceX, and X combined - aimed at the $25 trillion AI industry. James Altucher says the plan could cut Amazon out of the AI race and disrupt Blue Origin, with a key deadline landing September 25.tc pixel

Watch James Altucher's free video breakdown before the September 25 deadline.
2/12/2026 Alps Advisors Inc.147,062$1.16M0.0%-1.2%0.113%
2/12/2026 Swiss National Bank222,000$1.75M0.0%+26.6%0.170%
2/12/2026 Polen Capital Management LLC288,290$2.28M0.0%-15.1%0.221%
2/12/2026 Nuveen LLC233,159$1.84M0.0%-3.8%0.179%
2/12/2026MIdWestOne Financial Group Inc.17,011$134K0.0%-7.1%0.013%
2/11/2026 Deutsche Bank AG1,955,018$15.43M0.0%-5.4%1.498%
2/11/2026 Fox Run Management L.L.C.74,774$590K0.1%+129.9%0.057%
2/11/2026 LPL Financial LLC114,706$905K0.0%-30.6%0.088%
2/11/2026 Franklin Resources Inc.78,837$622K0.0%N/A0.060%
2/10/2026 Goldman Sachs Group Inc.2,194,841$17.32M0.0%+23.0%1.682%


AMPX Institutional Ownership - Frequently Asked Questions

During the previous two years, 189 institutional investors and hedge funds held shares of Amprius Technologies. The most heavily invested institutionals were Vanguard Group Inc. ($56.25M), California State Teachers Retirement System ($27.14M), Geode Capital Management LLC ($21.14M), State Street Corp ($20.15M), Two Sigma Investments LP ($18.45M), 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 176 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), California State Teachers Retirement System ($1.95M), BNP Paribas Financial Markets ($1.94M), Voloridge Investment Management LLC ($1.88M), Geode Capital Management LLC ($1.47M), and Board of Trustees of The Leland Stanford Junior University ($1.46M).

Institutional investors have bought a total of 29,640,169 shares in the last 24 months. This purchase volume represents approximately $309.37M in transactions.

Of the 43 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), Informed Momentum Co LLC ($251.72K), and Jump Financial LLC ($232.32K).

Institutional investors have sold a total of 5,445,133 shares in the last 24 months. This volume of shares sold represents approximately $50.89M 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 8/24/2026. New 13F filings are added each quarter as they're published.
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