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Amprius Technologies, Inc.

AMPX
Exchange
NYSE
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies
SEC CIK
0001899287

In the last 90 days, Amprius Technologies, Inc. insiders filed 0 open-market purchases and 3 sales; 261 institutions reported holding it in 13F filings for Q2 2026, worth $1.35B in total; no superinvestor holds it.

Other share classesAMPX.WT

13F holders, Q1 2026

Institutional positions in Amprius Technologies, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
245
+44 vs. Q4 2025
Shares held
84.6M
+25.3M (+42.7%) vs. Q4 2025
Total value
$1.42B
+$955.3M (+204.1%) vs. Q4 2025
New holders
79
94 more added
Sold out
35
57 more reduced

5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 245 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 13 institutionsQ4 2022: 22 institutionsQ1 2023: 26 institutionsQ2 2023: 41 institutionsQ3 2023: 46 institutionsQ4 2023: 49 institutionsQ1 2024: 50 institutionsQ2 2024: 65 institutionsQ3 2024: 66 institutionsQ4 2024: 91 institutionsQ1 2025: 100 institutionsQ2 2025: 121 institutionsQ3 2025: 187 institutionsQ4 2025: 206 institutionsQ1 2026: 245 institutionsQ2 2026: 261 institutions
Value heldQ1 2026: $1.42B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $11.7MQ4 2022: $14.8MQ1 2023: $17.1MQ2 2023: $19.5MQ3 2023: $20.0MQ4 2023: $23.5MQ1 2024: $13.1MQ2 2024: $9.71MQ3 2024: $9.17MQ4 2024: $46.6MQ1 2025: $55.8MQ2 2025: $160.4MQ3 2025: $669.4MQ4 2025: $534.7MQ1 2026: $1.42BQ2 2026: $1.35B
Institutions holding AMPX and their total value by quarter
QuarterHoldersValue
Q2 2026261$1.35B
Q1 2026245$1.42B
Q4 2025206$534.7M
Q3 2025187$669.4M
Q2 2025121$160.4M
Q1 2025100$55.8M
Q4 202491$46.6M
Q3 202466$9.17M
Q2 202465$9.71M
Q1 202450$13.1M
Q4 202349$23.5M
Q3 202346$20.0M
Q2 202341$19.5M
Q1 202326$17.1M
Q4 202222$14.8M
Q3 202213$11.7M
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Amprius Technologies, Inc.; share changes are against Q4 2025.

Institutions holding AMPX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Occudo Quantitative Strategies LP65,508$1.38M0.08%+65,508New
Twinbeech Capital LP76,000$1.28M0.13%+76,000New
Vanguard Global Advisers, LLC74,787$1.26M0.00%+74,787New
Boothbay Fund Management, LLC73,064$1.23M0.03%−39,260−35.0%Reduced
Hel Ved Capital Management Ltd71,850$1.21M0.21%+71,850New
Engineers Gate Manager LP70,652$1.19M0.01%−289,749−80.4%Reduced
MetLife Investment Management62,845$1.06M0.01%+2,332+3.9%Added
IMC-Chicago, LLC62,679$1.06M0.02%+62,679New
Axq Capital, LP60,865$1.03M0.13%+39,691+187.5%Added
AlphaCentric Advisors LLC60,000$1.01M1.01%+10,000+20.0%Added
Ameriprise Financial Inc60,184$993.1K0.00%−17,825−22.8%Reduced
Manufacturers Life Insurance Company, The58,790$991.2K0.00%+25,510+76.7%Added
Flputnam Investment Management Co56,604$954.3K0.01%+56,604New
Janus Henderson Group PLC52,803$889.5K0.00%+13,750+35.2%Added
Gsa Capital Partners LLP52,564$886.0K0.06%−44,131−45.6%Reduced
Parallax Volatility Advisers, L.P.40,777$873.9K0.04%+40,777New
Alliancebernstein L.P.108,260$854.2K0.00%−15,600−12.6%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)50,133$845.2K0.00%+7,646+18.0%Added
Kingswood Wealth Advisors, LLC48,705$821.2K0.04%+1,000+2.1%Added
Mirae Asset Global Investments Co., Ltd.47,506$801.0K0.00%−8,586−15.3%Reduced
Qsemble Capital Management, LP47,333$798.0K0.06%+47,333New
Colony Group, LLC45,474$766.7K0.00%+23,432+106.3%Added
Voya Investment Management LLC45,332$764.3K0.00%+25,962+134.0%Added
Vident Advisory, LLC44,168$744.7K0.01%+30,604+225.6%Added
National Asset Management, Inc.50,200$738.9K0.05%00.0%Unchanged
Harbour Capital Advisors, LLC31,480$714.3K0.14%+31,480New
FORA Capital, LLC41,598$700.3K0.05%+2,670+6.9%Added
Bessemer Group Inc41,333$697.0K0.00%00.0%Unchanged
Richmond Investment Services, LLC39,994$674.3K0.11%+29,136+268.3%Added
Marex Group plc39,708$669.5K0.01%+39,708New
Cambridge Investment Research Advisors, Inc.39,689$669.0K0.00%+39,689New
Gotham Asset Management, LLC39,517$666.3K0.00%+39,517New
Creative Planning37,336$629.5K0.00%+12,575+50.8%Added
KLP Kapitalforvaltning AS35,900$605.3K0.00%00.0%Unchanged
HITE Hedge Asset Management LLC35,313$595.4K0.03%−22,489−38.9%Reduced
Counterpoint Mutual Funds LLC32,490$547.8K0.08%−550−1.7%Reduced
Arizona State Retirement System32,284$544.3K0.00%+1,222+3.9%Added
Intech Investment Management LLC32,020$539.9K0.01%−19,091−37.4%Reduced
Police & Firemen's Retirement System of New Jersey31,588$532.6K0.00%+1,982+6.7%Added
Brevan Howard Capital Management LP31,308$527.9K0.01%+31,308New
CWM Advisors, LLC31,051$523.5K0.03%−29,191−48.5%Reduced
Cornerstone Partners Capital Management, LLC30,706$517.7K1.29%00.0%Unchanged
Vanguard Investments Australia, Ltd.30,685$517.3K0.00%+30,685New
Sigma Planning Corp30,285$510.6K0.01%+30,285New
Stephens Inc28,895$487.2K0.01%−332−1.1%Reduced
Polymer Capital Management (US) LLC28,128$474.2K0.07%+28,128New
Envestnet Asset Management Inc28,095$473.7K0.00%+12,086+75.5%Added
Point72 Asset Management, L.P.27,921$470.7K0.00%−465,941−94.3%Reduced
Advisory Services Network, LLC27,920$470.7K0.01%−3,587−11.4%Reduced
Commonwealth Equity Services, LLC27,674$466.6K0.00%+6,097+28.3%Added
Principal Financial Group Inc25,382$427.9K0.00%+25,382New
Headlands Technologies LLC24,635$415.3K0.05%+24,635New
Caitong International Asset Management Co., Ltd23,809$401.4K0.07%+15,447+184.7%Added
JustInvest LLC23,133$390.0K0.00%+5,177+28.8%Added
Swiss Life Asset Management Ltd11,164$388.9K0.00%+11,164New
Cetera Investment Advisers22,775$384.0K0.00%−7,947−25.9%Reduced
State Board of Administration of Florida Retirement System21,040$354.7K0.00%+21,040New
FNY Investment Advisers, LLC20,757$349.0K0.15%+20,757New
Toroso Investments, LLC20,632$347.9K0.00%−467−2.2%Reduced
Jain Global LLC19,686$331.9K0.00%+19,686New
Ewa, LLC19,551$329.6K0.07%−407−2.0%Reduced
Prudential Financial Inc17,890$301.6K0.00%−23,350−56.6%Reduced
NBC Securities, Inc.17,635$297.3K0.02%+2,065+13.3%Added
Los Angeles Capital Management LLC17,464$294.4K0.00%−18,229−51.1%Reduced
Scientech Research LLC17,359$292.7K0.24%+4,549+35.5%Added
Geneos Wealth Management Inc.17,140$289.0K0.01%+6,490+60.9%Added
Verition Fund Management LLC17,045$287.4K0.00%−275,052−94.2%Reduced
ProShare Advisors LLC16,695$281.5K0.00%−3,464−17.2%Reduced
Pictet Asset Management Holding SA16,099$271.4K0.00%00.0%Unchanged
CI Private Wealth, LLC15,999$269.7K0.00%+15,999New
Pekin Hardy Strauss, Inc.15,100$254.6K0.03%+15,100New
Quantinno Capital Management LP14,049$236.9K0.00%+14,049New
Graham Capital Management, L.P.13,768$232.1K0.01%−35,828−72.2%Reduced
Hidden Cove Wealth Management, LLC13,694$230.9K0.15%+13,694New
Bridgefront Capital, LLC13,571$228.8K0.06%−7,038−34.2%Reduced
Victory Capital Management Inc13,361$225.3K0.00%+544+4.2%Added
Nicolet Bankshares Inc13,305$224.3K0.01%+13,305New
Citigroup Inc13,255$223.5K0.00%−61,509−82.3%Reduced
Capital Performance Advisors LLP13,234$223.1K0.01%−740−5.3%Reduced
Tower Research Capital LLC (TRC)13,205$222.6K0.01%+11,775+823.4%Added
Wiley Bros.-Aintree Capital, LLC13,012$219.4K0.00%+13,012New
FMR LLC12,350$208.2K0.00%+3,365+37.5%Added
Bayforest Capital Ltd11,477$193.5K0.22%−25,405−68.9%Reduced
State of Wisconsin Investment Board11,462$193.2K0.00%+11,462New
Wealthfront Advisers LLC11,061$186.5K0.00%−3,291−22.9%Reduced
HighTower Advisors, LLC11,013$185.7K0.00%−3,018−21.5%Reduced
Xponance, Inc.10,702$180.4K0.00%+10,702New
Cambridge Financial Group, LLC10,000$168.6K0.06%00.0%Unchanged
Joel Isaacson & Co., LLC10,000$168.6K0.01%+10,000New
Mitchell & Pahl Private Wealth, LLC10,000$168.6K0.07%+10,000New
Ameritas Investment Partners, Inc.9,425$158.9K0.00%+464+5.2%Added
Jones Financial Companies LLLP9,692$156.2K0.00%+174+1.8%Added
Central Pacific Bank - Trust Division7,000$118.0K0.02%+7,000New
State of Wyoming6,041$101.9K0.01%+3,674+155.2%Added
Leonteq Securities AG6,000$101.2K0.01%00.0%Unchanged
Acadian Asset Management LLC5,214$87.0K0.00%+1,545+42.1%Added
MAI Capital Management4,803$81.0K0.00%+4,803New
Nisa Investment Advisors, LLC4,582$77.3K0.00%+3,400+287.6%Added
CWM, LLC4,186$70.6K0.00%−311−6.9%Reduced
Larson Financial Group LLC4,086$68.9K0.00%+4,071+27,140.0%Added