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Disclosery

AMPX AMPRIUS TECHNOLOGIES INC

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Stock (common), issuer CIK 1899287

201 managers (206 13F filers) reported a position in AMPX shares at 2025-12-31, 67,747,663 shares in all. 44 filers opened a position and 28 filers sold out during the quarter.

Managers
201
13F filers
206
New
44
Added
86
Reduced
53
Sold out
28
Shares held by filers
67,747,663

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.8,823,779$69.6M<0.01%+1,368,07613F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding7,146,613$56.4M+614,355Timeline
MORGAN STANLEYin group MORGAN STANLEY2,809,821$22.2M<0.01%+66,11613F-HR/ATimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,678,417$21.1M<0.01%+253,52913F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,553,710$20.1M<0.01%+363,92813F-HRTimelineGroup
Driehaus Capital Management LLC2,393,212$18.9M0.13%-697,45713F-HRTimeline
UBS Group AGgroup of 2 filers holding2,287,790$18.1M+623,298Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC2,194,841$17.3M<0.01%+410,72413F-HR/ATimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\1,955,018$15.4M0.01%-111,52213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding1,916,439$15.1M-649,138Timeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…1,691,500$13.3M0.02%+786,03013F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC1,602,001$12.6M0.04%-274,13913F-HRTimeline
Stephens Investment Management Group LLCgroup of 2 filers holding1,470,925$11.6M+367,687Timeline
Invesco Ltd.in group Invesco Ltd.1,311,915$10.4M<0.01%-1,067,46913F-HRTimelineGroup
NORGES BANK1,304,838$10.3M<0.01%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…1,100,000$8.68M0.05%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,085,270$8.56M0.01%+497,43813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,036,891$8.18M<0.01%+62,40613F-HRTimelineGroup
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC984,906$7.77M0.02%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP963,171$7.6M<0.01%+110,89213F-HRTimelineGroup
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD960,912$7.58M0.06%+761,52713F-HRTimelineGroup
Qube Research & Technologies Ltd874,080$6.9M0.01%new13F-HRTimeline
Hood River Capital Management LLC809,744$6.39M0.07%new13F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.773,428$6.1M0.01%-103,49913F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP771,509$6.09M0.01%-24,28213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS707,079$5.58M<0.01%-1,236,82613F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding546,978$4.32M-21,909Timeline
THAMES CAPITAL MANAGEMENT LLC526,832$4.16M0.6%013F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC516,765$4.08M0.62%-180,62213F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.493,862$3.9M0.01%+459,94613F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC469,906$3.71M<0.01%+336,57213F-HRTimelineGroup
Artemis Investment Management LLP464,029$3.66M0.04%-14,48913F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC454,854$3.59M<0.01%-2,051,94513F-HRTimelineGroup
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …454,830$3.59M0.15%+267,38513F-HRTimelineGroup
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …442,090$3.49M0.05%+142,75113F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO431,786$3.41M<0.01%+353,06613F-HRTimelineGroup
Engineers Gate Manager LP360,401$2.84M0.03%+171,57713F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC359,386$2.84M0.02%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp309,714$2.44M<0.01%+17,81013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/299,926$2.37M<0.01%+9,48513F-HRTimelineGroup
Verition Fund Management LLC292,097$2.3M0.01%-31,34713F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC288,290$2.27M0.01%-51,13713F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.286,658$2.26M<0.01%+194,85513F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC269,406$2.13M0.01%+138,63113F-HRTimelineGroup
SG Americas Securities, LLC255,252$2.01M<0.01%new13F-HRTimeline
Informed Momentum Co LLC236,810$1.87M0.21%-251,72013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…235,019$1.85M<0.01%-70,05413F-HRTimelineGroup
Nuveen, LLCin group TIAA233,159$1.84M<0.01%-9,11313F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC224,426$1.77M<0.01%-15,54213F-HRTimelineGroup
Swiss National Bank222,000$1.75M<0.01%+46,70013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC218,046$1.72M<0.01%+160,44113F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC213,425$1.68M<0.01%-463,23913F-HRTimelineGroup
HUSSMAN STRATEGIC ADVISORS, INC.210,000$1.66M0.4%new13F-HRTimeline
Legato Capital Management LLC204,647$1.61M0.14%-46,62113F-HRTimeline
Lisanti Capital Growth, LLC198,890$1.57M0.37%-66,83513F-HRTimeline
Voleon Capital Management LP191,170$1.51M0.03%+157,66313F-HRTimeline
Janney Montgomery Scott LLC168,480$1.33M<0.01%-114,98013F-HRTimeline
Huntleigh Advisors, Inc.160,599$1.27M0.21%+4,53313F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC147,062$1.16M0.01%-1,71813F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN142,355$1.12M<0.01%+83,59513F-HRTimelineGroup
Amundiin group Amundi140,306$1.11M<0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC136,099$1.07M<0.01%+4,58813F-HRTimelineGroup
ALGERT GLOBAL LLC132,650$1.05M0.02%-250,36913F-HR/ATimeline
Alberta Investment Management Corp126,900$1M0.01%new13F-HR/ATimeline
RHUMBLINE ADVISERS125,154$987K<0.01%-4,83713F-HRTimeline
Foundations Investment Advisors, LLC124,134$979K0.01%+3,00013F-HRTimeline
ALLIANCEBERNSTEIN L.P.123,860$977K<0.01%013F-HRTimeline
SLT Holdings LLC123,300$973K0.65%+3,00013F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC119,033$939K<0.01%-52,01913F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC116,624$920K0.07%new13F-HRTimeline
LPL Financial LLC114,706$905K<0.01%-50,68713F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC112,825$890K<0.01%+100,42513F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC112,324$886K0.02%+96,21013F-HRTimeline
CAPITAL FUND MANAGEMENT S.A.109,020$860K0.01%-22,39113F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…107,930$852K<0.01%+24,30413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc102,161$806K<0.01%+14,78413F-HRTimelineGroup
Faithward Advisors, LLC101,175$798K0.12%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP96,695$763K0.07%-4,35813F-HRTimeline
Numerai GP LLC96,209$759K0.09%+21,69813F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA91,916$726K<0.01%-35,47013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO83,449$658K<0.01%-204,26713F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/80,578$636K<0.01%+31,46313F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources78,837$622K<0.01%new13F-HRTimelineGroup
Polar Asset Management Partners Inc.78,600$620K0.01%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC78,009$615K<0.01%+44,99513F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.74,774$590K0.09%+42,25113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC74,764$590K<0.01%-21,96613F-HRTimelineGroup
CoreCommodity Management, LLC74,022$584K0.12%+35,25213F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP71,885$567K0.03%+51,75213F-HRTimeline
Granahan Investment Management, LLC64,382$508K0.02%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…60,513$477K<0.01%+2,30613F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC60,242$475K0.04%+16,41213F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …53,913$471K<0.01%+4,80913F-HRTimelineGroup
HITE Hedge Asset Management LLC57,802$456K0.03%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC35,693$439K<0.01%013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD55,100$435K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC51,111$403K<0.01%+12,90813F-HRTimeline
B. Riley Wealth Advisors, Inc.50,200$396K0.02%-50013F-HRTimeline
AlphaCentric Advisors LLC50,000$394K0.39%13F-HRTimeline
Graham Capital Management, L.P.49,596$391K0.01%+1,55113F-HRTimeline
KINGSWOOD WEALTH ADVISORS, LLC47,705$376K0.02%-30,00013F-HRTimeline
PharVision Advisers, LLC42,991$339K0.17%+16,43313F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…42,487$335K<0.01%+17,80713F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC41,333$326K<0.01%013F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC41,240$325K<0.01%-89,98013F-HRTimelineGroup
BLAIR WILLIAM & CO/IL40,152$317K<0.01%+15,36413F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson39,053$308K<0.01%013F-HRTimelineGroup
FORA Capital, LLC38,928$307K0.04%+25,53713F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\37,927$299K<0.01%+37,56613F-HRTimelineGroup
Bayforest Capital Ltd36,882$291K0.22%new13F-HRTimeline
KLP KAPITALFORVALTNING AS35,900$283K<0.01%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …33,280$263K<0.01%+1,62113F-HRTimelineGroup
Counterpoint Mutual Funds LLC33,040$261K0.02%-14,59913F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP32,744$258K<0.01%+2,06613F-HRTimelineGroup
Advisory Services Network, LLC31,507$249K<0.01%+1,04113F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM31,062$245K<0.01%+4,30913F-HRTimeline
Trexquant Investment LP31,010$245K<0.01%-218,27813F-HRTimeline
Cetera Investment Advisers30,722$242K<0.01%+19,11013F-HRTimeline
CORNERSTONE PARTNERS CAPITAL MANAGEMENT…30,706$242K0.67%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND29,637$234K<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…29,606$234K<0.01%+2,69513F-HRTimeline
ExodusPoint Capital Management, LP26,560$210K<0.01%new13F-HRTimeline
Aquatic Capital Management LLC26,218$207K0.01%new13F-HRTimeline
Creative Planningin group Creative Planning24,761$195K<0.01%+1,93513F-HRTimelineGroup
Lombard Odier Asset Management (USA) Co…23,942$189K0.08%new13F-HRTimeline
DRW Securities, LLC23,321$184K0.01%+6,89713F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth22,042$174K<0.01%-4,44213F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC21,577$170K<0.01%new13F-HRTimeline
AXQ CAPITAL, LP21,174$167K0.04%+3,79813F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC21,099$166K<0.01%+3513F-HRTimelineGroup
Bridgefront Capital, LLC20,609$163K0.04%new13F-HRTimeline
ProShare Advisors LLC20,159$159K<0.01%+4,22213F-HRTimeline
Abacus Wealth Partners, LLC20,000$158K0.02%013F-HRTimeline
EWA, LLC19,958$157K0.04%+72313F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC19,370$153K<0.01%+2,49413F-HRTimelineGroup
MIdWestOne Financial Group, Inc.17,011$134K0.01%-1,29713F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…16,099$127K<0.01%013F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC16,009$126K<0.01%-6,08613F-HRTimelineGroup
LANARK FINANCIAL, INC.15,570$123K0.01%+7,13213F-HRTimeline
Wealthfront Advisers LLC14,352$113K<0.01%new13F-HRTimeline
HighTower Advisors, LLC14,031$111K<0.01%-2,80313F-HRTimeline
EARNED WEALTH ADVISORS, LLC13,974$110K0.01%new13F-HR/ATimeline
Vident Advisory, LLCin group Vident Advisory, LLC13,564$107K<0.01%new13F-HRTimelineGroup
DMC Group, LLC13,204$104K0.07%+26013F-HRTimeline
AlphaGrep UK Ltd12,895$102K0.03%13F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC12,817$101K<0.01%+1,00013F-HRTimeline
Scientech Research LLC12,810$101K0.06%new13F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …11,269$88.9K<0.01%new13F-HRTimelineGroup
Orion Porfolio Solutions, LLC10,919$86.2K<0.01%new13F-HRTimeline
Worth Venture Partners, LLC10,875$85.8K0.62%new13F-HRTimeline
Richmond Investment Services, LLC10,858$85.7K0.01%-3,93813F-HRTimeline
Geneos Wealth Management Inc.10,650$84K<0.01%+3,60513F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC10,381$81.9K<0.01%-232,31913F-HRTimelineGroup
Cambridge Financial Group, LLC10,000$78.3K0.03%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP9,518$75.1K<0.01%+4,98613F-HRTimelineGroup
FMR LLCin group FMR LLC8,985$70.9K<0.01%+76413F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…8,961$70.7K<0.01%+1,17413F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.8,670$68.4K<0.01%+4,06813F-HRTimelineGroup
Caitong International Asset Management …8,362$66K0.02%-6,85813F-HR/ATimeline
SUMMIT SECURITIES GROUP LLC6,850$54K0.01%new13F-HRTimeline
Leonteq Securities AG6,000$47.3K<0.01%new13F-HRTimeline
Parallel Advisors, LLC5,121$40.4K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC4,497$35K<0.01%+3513F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC3,669$28K<0.01%new13F-HRTimelineGroup
AMALGAMATED BANK3,468$27K<0.01%+2,90213F-HRTimeline
Quarry LP2,909$23K<0.01%-1,08113F-HRTimeline
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…2,500$19.7K<0.01%new13F-HRTimeline
State of Wyoming2,367$18.7K<0.01%new13F-HRTimeline
EASTERN BANK2,000$15.8K<0.01%013F-HRTimeline
DHJJ Financial Advisors, Ltd.2,000$15.8K0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,620$13K<0.01%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,487$11.7K<0.01%+5913F-HRTimelineGroup
Global X Japan Co., Ltd.1,487$11.7K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,430$11.3K<0.01%-6,10913F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC1,182$9.33K<0.01%-45713F-HRTimeline
GAMMA Investing LLC766$6.04K<0.01%+68913F-HRTimeline
Sterling Capital Management LLC721$5.69K<0.01%+49513F-HRTimeline
Aspect Partners, LLC475$3.75K<0.01%-8013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…376$2.97K<0.01%+34613F-HR/ATimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.352$2.78K<0.01%-25813F-HRTimelineGroup
Federation des caisses Desjardins du Qu…300$2.37K<0.01%new13F-HRTimeline
Steward Partners Investment Advisory, L…272$2.15K<0.01%+5013F-HRTimeline
Essential Partners LLC247$1.95K<0.01%+213F-HRTimeline
NVWM, LLC224$1.77K<0.01%+7413F-HRTimeline
DELTA ASSET MANAGEMENT LLC/TN205$1.62K<0.01%+513F-HRTimeline
Cornerstone Financial Management LLC205$1.62K<0.01%13F-HR/ATimeline
Farther Finance Advisors, LLC178$1.4K<0.01%+10113F-HRTimeline
SIGNATUREFD, LLC172$1.36K<0.01%new13F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC148$1.17K<0.01%new13F-HRTimeline
ORG Partners LLC120$946<0.01%new13F-HRTimeline
Fortitude Family Office, LLC101$797<0.01%013F-HRTimeline
Allworth Financial LP70$553<0.01%+4213F-HRTimeline
True Wealth Design, LLC61$482<0.01%013F-HRTimeline
Quattro Advisors LLC40$319<0.01%13F-HRTimeline
HOLLENCREST CAPITAL MANAGEMENT40$316<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…20$158<0.01%013F-HRTimelineGroup
DV Trading LLC16$126<0.01%13F-HRTimeline
Larson Financial Group LLC15$118<0.01%new13F-HRTimeline
IFP Advisors, Inc9$71<0.01%new13F-HRTimeline
Arax Advisory Partners6$47<0.01%-39413F-HRTimeline