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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

Q2 2026 vs. Q1 2026

How the institutions holding Amprius Technologies, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of AMPX: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders2452261+18
Shares84.6M57.0K97.2M+12.6M (+14.9%)
Value$1.42B$960.0K$1.35B−$74.7M (−5.3%)

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (63)

Institutions that held Amprius Technologies, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to AMPX in Q2 2026
InstitutionSharesValue% of portfolio
Jupiter Asset Management Ltd2,133,397$29.6M0.15%
LMR Partners LLP1,750,850$24.3M0.18%
Healthcare of Ontario Pension Plan Trust Fund1,248,700$17.3M0.02%
Nearwater Capital Markets, Ltd1,034,700$14.3M0.25%
Shannon River Fund Management LLC838,887$11.6M1.04%
TimesSquare Capital Management, LLC641,990$8.90M0.13%
Wellington Management Group LLP342,797$4.75M0.00%
Credit Agricole S A265,189$3.68M0.01%
HSBC Holdings PLC259,508$3.62M0.00%
Group One Trading, L.P.213,312$2.96M0.09%
ExodusPoint Capital Management, LP179,272$2.48M0.02%
Cantor Fitzgerald, L. P.147,909$2.05M0.04%
Clear Street Group Inc.122,474$1.70M0.01%
Canada Pension Plan Investment Board119,600$1.66M0.00%
Nomura Holdings Inc109,808$1.52M0.01%
Ambassador Advisors, LLC102,448$1.42M0.17%
Bouvel Investment Partners, LLC99,308$1.38M0.31%
PEAK6 LLC66,766$925.4K0.02%
State of New Jersey Common Pension Fund D64,549$894.6K0.00%
Wolverine Asset Management LLC58,914$816.5K0.01%
Atom Investors LP56,596$784.4K0.07%
Dark Forest Capital Management LP54,128$750.2K0.05%
Hudson Bay Capital Management LP53,674$743.9K0.00%
Jupiter Topco LLC52,803$731.6K0.00%
Natixis47,000$651.4K0.00%
Warberg Asset Management LLC47,000$651.4K0.19%
Teachers Retirement System of the State of Kentucky34,028$472.0K0.00%
Capstone Investment Advisors, LLC32,390$448.9K0.00%
Abu Dhabi Investment Council Co P.J.S.C29,912$414.6K0.06%
Holocene Advisors, LP27,189$376.8K0.00%
National Bank of Canada25,000$346.5K0.00%
Freestone Grove Partners LP20,864$289.2K0.00%
Vanderbilt University19,941$276.4K0.04%
Mercer Global Advisors Inc18,889$261.8K0.00%
Midwest Trust Co17,500$242.6K0.00%
Inspire Advisors, LLC15,322$212.4K0.01%
Kestra Advisory Services, LLC14,709$203.9K0.00%
B. Riley Financial, Inc.12,919$179.1K0.04%
Titleist Asset Management, LLC12,447$172.5K0.01%
Alpine Woods Capital Investors, LLC12,061$167.2K0.04%
Trustees of the University of Pennsylvania10,929$151.5K0.15%
Worth Venture Partners, LLC10,620$147.2K0.33%
Thrivent Financial for Lutherans10,358$142.0K0.00%
Chicago Partners Investment Group LLC10,302$102.1K0.00%
Mitsubishi UFJ Trust & Banking Corp5,889$81.6K0.00%
Nykredit A/S5,685$78.8K0.00%
Walleye Capital LLC4,294$59.5K0.00%
Federation des caisses Desjardins du Quebec2,300$31.9K0.00%
Meeder Asset Management Inc1,615$22.4K0.00%
Private Trust Co NA265$3.67K0.00%
GWM Advisors LLC223$3.09K0.00%
Elequin Capital LP180$2.50K0.00%
Caldwell Sutter Capital, Inc.100$1.39K0.00%
Harbour Investments, Inc.100$1.39K0.00%
Vermillion Wealth Management, Inc.84$1.16K0.00%
Signaturefd, LLC80$1.11K0.00%
Northwestern Mutual Wealth Management Co50$6930.00%
Silver Grove Financial Group, Inc.31$4300.00%
Global Retirement Partners, LLC11$1520.00%
Keating Financial Advisory Services, Inc.5$690.00%
Miller Global Investments, LLC4$550.00%
Hughes Financial Services, LLC1$140.00%
Coppell Advisory Solutions LLC500––

Sold out (45)

Institutions that held Amprius Technologies, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of AMPX in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
William Blair Investment Management, LLC1,170,131$19.7M
HRT Financial LP1,002,658$16.9M
MYDA Advisors LLC735,000$12.4M
Science & Technology Partners, L.P.635,106$10.7M
Voloridge Investment Management, LLC531,998$8.97M
Thames Capital Management LLC526,832$8.88M
Public Sector Pension Investment Board332,000$5.60M
EAM Investors, LLC262,036$4.42M
Arrowstreet Capital, Limited Partnership227,132$3.83M
Y-Intercept (Hong Kong) Ltd164,224$2.77M
Schonfeld Strategic Advisors LLC135,774$2.29M
Ardsley Advisory Partners LP125,000$2.11M
CenterBook Partners LP118,257$1.99M
Apis Capital Advisors, LLC108,000$1.82M
Alberta Investment Management Corp82,000$1.38M
Occudo Quantitative Strategies LP65,508$1.38M
Twinbeech Capital LP76,000$1.28M
Boothbay Fund Management, LLC73,064$1.23M
Colony Group, LLC45,474$766.7K
Harbour Capital Advisors, LLC31,480$714.3K
FORA Capital, LLC41,598$700.3K
Richmond Investment Services, LLC39,994$674.3K
Gotham Asset Management, LLC39,517$666.3K
Sigma Planning Corp30,285$510.6K
Swiss Life Asset Management Ltd11,164$388.9K
Scientech Research LLC17,359$292.7K
Verition Fund Management LLC17,045$287.4K
Pekin Hardy Strauss, Inc.15,100$254.6K
Bridgefront Capital, LLC13,571$228.8K
Bayforest Capital Ltd11,477$193.5K
Joel Isaacson & Co., LLC10,000$168.6K
Cambridge Financial Group, LLC10,000$168.6K
Acadian Asset Management LLC5,214$87.0K
MAI Capital Management4,803$81.0K
Kemnay Advisory Services Inc.765$12.9K
Golden State Equity Partners600$10.1K
Optiver Holding B.V.378$6.37K
Quarry LP344$5.80K
Highline Wealth Partners LLC300$5.06K
CoreCap Advisors, LLC246$4.15K
Root Financial Partners, LLC73$1.23K
True Wealth Design, LLC61$1.03K
DecisionPoint Financial, LLC37$624
Versant Capital Management, Inc18$303
Twin Peaks Wealth Advisors, LLC9$152

Not filed for Q2 2026 yet (2)

Institutions that held Amprius Technologies, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AMPX in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Janus Henderson Group PLC52,803$889.5K
CWM, LLC4,186$70.6K