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Disclosery

AMPX AMPRIUS TECHNOLOGIES INC

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Stock (common), issuer CIK 1899287

182 managers (187 13F filers) reported a position in AMPX shares at 2025-09-30, 63,619,322 shares in all. 86 filers opened a position and 18 filers sold out during the quarter.

Managers
182
13F filers
187
New
86
Added
63
Reduced
27
Sold out
18
Shares held by filers
63,619,322

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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.7,455,703$78.4M<0.01%+2,185,68513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding6,532,258$68.7M+1,757,899Timeline
Driehaus Capital Management LLC3,090,669$32.5M0.23%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY2,743,705$28.9M<0.01%+810,07813F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding2,565,577$27M+751,569Timeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC2,506,799$26.4M0.02%+2,227,14213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,424,888$25.5M<0.01%+831,28113F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.2,379,384$25M<0.01%+1,263,84613F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,189,782$23M<0.01%+1,013,06413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\2,066,540$21.7M0.01%+2,005,10213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,943,905$20.4M0.02%+1,784,29113F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC1,876,140$19.7M0.07%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,784,117$18.8M<0.01%+1,243,84913F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,664,492$17.5M+932,959Timeline
Stephens Investment Management Group LLCgroup of 2 filers holding1,103,238$11.6MnewTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co974,485$10.3M<0.01%+477,58613F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…905,470$9.53M0.01%+28,14213F-HRTimelineGroup
Baird Financial Group, Inc.in group Baird Financial Group, Inc.876,927$9.23M0.01%-123,78413F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP852,279$8.97M<0.01%+189,70613F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP795,791$8.37M0.01%-100,43413F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL715,736$7.53M0.05%new13F-HR/ATimeline
ESSEX INVESTMENT MANAGEMENT CO LLC697,387$7.34M1.12%-327,97013F-HRTimeline
Capitolis Liquid Global Markets LLCin group CAPITOLIS LIQUID GLOBAL MARKE…680,600$7.16M0.06%new13F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC676,664$7.12M0.01%+654,30913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC587,832$6.18M<0.01%-3,028,54813F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding568,887$5.98M+517,846Timeline
THAMES CAPITAL MANAGEMENT LLC526,832$5.54M0.79%new13F-HRTimeline
Informed Momentum Co LLC488,530$5.08M0.58%+277,27813F-HRTimeline
Artemis Investment Management LLP478,518$5.03M0.06%new13F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …471,791$4.96M<0.01%new13F-HRTimelineGroup
ALGERT GLOBAL LLC383,019$4.03M0.07%new13F-HR/ATimeline
POLEN CAPITAL MANAGEMENT LLC339,427$3.57M0.01%new13F-HRTimeline
Verition Fund Management LLC323,444$3.4M0.02%+145,79213F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…305,073$3.21M<0.01%+299,25813F-HRTimelineGroup
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …299,339$3.15M0.04%-149,85813F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp291,904$3.07M<0.01%+98,15613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/290,441$3.06M<0.01%+163,66213F-HR/ATimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO287,716$3.03M<0.01%-729,50113F-HR/ATimelineGroup
Janney Montgomery Scott LLC283,460$2.98M0.01%+267,46713F-HRTimeline
Lisanti Capital Growth, LLC265,725$2.8M0.68%new13F-HRTimeline
Legato Capital Management LLC251,268$2.64M0.29%-25,60613F-HRTimeline
Trexquant Investment LP249,288$2.62M0.03%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC242,700$2.55M0.03%new13F-HR/ATimelineGroup
Nuveen, LLCin group TIAA242,272$2.55M<0.01%+25,09413F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC239,968$2.52M<0.01%+229,14313F-HRTimelineGroup
NEXT CENTURY GROWTH INVESTORS LLC228,628$2.41M0.18%new13F-HRTimeline
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD199,385$2.1M0.02%new13F-HRTimelineGroup
Engineers Gate Manager LP188,824$1.99M0.02%new13F-HRTimeline
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …187,445$1.97M0.09%new13F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd180,197$1.9M0.02%new13F-HRTimelineGroup
Swiss National Bank175,300$1.84M<0.01%new13F-HRTimeline
Cubist Systematic Strategies, LLC174,759$1.84M0.03%+4,35413F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd173,005$1.82M0.09%+162,58513F-HRTimelineGroup
Calamos Advisors LLCin group Calamos Advisors LLC171,052$1.8M0.01%new13F-HRTimelineGroup
LPL Financial LLC165,393$1.74M<0.01%+39,68713F-HRTimeline
Huntleigh Advisors, Inc.156,066$1.64M0.28%+10,15213F-HRTimeline
HRT FINANCIAL LP150,564$1.58M0.01%-65,06913F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC148,780$1.57M0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC133,334$1.4M<0.01%-34,16913F-HR/ATimelineGroup
Quantbot Technologies LP131,922$1.39M0.04%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC131,511$1.38M<0.01%+51,50913F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.131,411$1.38M0.01%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC131,220$1.38M<0.01%+120,44513F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC130,775$1.38M0.01%new13F-HRTimelineGroup
RHUMBLINE ADVISERS129,991$1.37M<0.01%+6,73113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA127,386$1.34M<0.01%+111,70113F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.123,860$1.3M<0.01%-40,20013F-HRTimeline
Foundations Investment Advisors, LLC121,134$1.27M0.02%+28,71813F-HRTimeline
SLT Holdings LLC120,300$1.27M0.83%+28,55013F-HRTimeline
GSA CAPITAL PARTNERS LLP101,053$1.06M0.09%+28,01813F-HRTimeline
CITIGROUP INCin group CITIGROUP INC96,730$1.02M<0.01%+62,37413F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.91,803$966K<0.01%new13F-HRTimelineGroup
Entropy Technologies, LP90,101$948K0.07%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc87,377$919K<0.01%+76,99413F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…83,626$880K<0.01%+77,81013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO78,720$828K<0.01%+68,49113F-HRTimelineGroup
KINGSWOOD WEALTH ADVISORS, LLC77,705$817K0.05%-7,70313F-HRTimeline
Numerai GP LLC74,511$784K0.11%new13F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT70,981$746K0.01%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…69,792$734K0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC65,386$688K<0.01%new13F-HRTimeline
OMERS ADMINISTRATION Corp64,400$677K<0.01%+14,80013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN58,760$618K<0.01%+8,09013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…58,207$612K<0.01%013F-HRTimelineGroup
HITE Hedge Asset Management LLC57,802$608K0.03%-103,64213F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC57,605$606K<0.01%-7,77713F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …49,104$591K<0.01%new13F-HRTimelineGroup
Dynamic Technology Lab Private Ltd51,550$542K0.09%+21,32113F-HRTimeline
B. Riley Wealth Advisors, Inc.50,700$533K0.03%+20013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/49,115$517K<0.01%-273,89213F-HRTimeline
Harbour Capital Advisors, LLC40,315$511K0.1%new13F-HRTimeline
Graham Capital Management, L.P.48,045$505K0.02%-93,50013F-HRTimeline
Counterpoint Mutual Funds LLC47,639$501K0.04%new13F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC43,830$461K0.04%new13F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC41,333$435K<0.01%013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson39,053$411K<0.01%new13F-HRTimelineGroup
CoreCommodity Management, LLC38,770$408K0.07%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC38,203$402K<0.01%-6,56913F-HRTimeline
KLP KAPITALFORVALTNING AS35,900$378K<0.01%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC35,693$375K<0.01%-34,88413F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.33,916$357K<0.01%new13F-HRTimelineGroup
Voleon Capital Management LP33,507$352K0.01%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC33,014$347K<0.01%new13F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.32,523$342K0.05%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD31,944$336K<0.01%new13F-HRTimeline
Diametric Capital, LP31,740$334K0.12%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …31,659$333K<0.01%-2,64213F-HRTimelineGroup
CORNERSTONE PARTNERS CAPITAL MANAGEMENT…30,706$323K0.94%013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP30,678$323K<0.01%new13F-HRTimelineGroup
Advisory Services Network, LLC30,466$321K<0.01%-30813F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP30,368$319K<0.01%-1,075,04513F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND29,637$312K<0.01%+17,60013F-HRTimeline
GROUP ONE TRADING LLC28,891$304K0.01%+17,38713F-HRTimeline
Aigen Investment Management, LP27,190$286K0.04%+9,37913F-HRTimeline
Police & Firemen's Retirement System of…26,911$283K<0.01%+5,77713F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM26,753$281K<0.01%new13F-HRTimeline
PharVision Advisers, LLC26,558$279K0.16%new13F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth26,484$276K<0.01%+2,24513F-HRTimelineGroup
BLAIR WILLIAM & CO/IL24,788$261K<0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…24,680$260K<0.01%new13F-HRTimeline
Creative Planningin group Creative Planning22,826$240K<0.01%+8,57313F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC22,095$232K<0.01%new13F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC21,064$222K<0.01%new13F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP20,133$212K0.01%new13F-HR/ATimeline
Abacus Wealth Partners, LLC20,000$210K0.03%new13F-HRTimeline
EWA, LLC19,235$202K0.06%+22213F-HRTimeline
MIdWestOne Financial Group, Inc.18,308$193K0.02%-23813F-HRTimeline
Cambridge Investment Research Advisors,…17,544$185K<0.01%new13F-HRTimeline
AXQ CAPITAL, LP17,376$183K0.07%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC16,876$178K<0.01%-9,01613F-HRTimelineGroup
HighTower Advisors, LLC16,834$177K<0.01%new13F-HRTimeline
DRW Securities, LLC16,424$173K0.01%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC16,114$170K<0.01%new13F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…16,099$169K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC15,937$168K<0.01%-3,17513F-HRTimeline
Caitong International Asset Management …15,220$160K0.11%+13,45413F-HRTimeline
Richmond Investment Services, LLC14,796$156K0.03%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC14,018$147K0.01%new13F-HRTimeline
FORA Capital, LLC13,391$141K0.02%new13F-HRTimeline
DMC Group, LLC12,944$136K0.09%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC12,400$130K<0.01%-1,334,20013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC11,817$124K<0.01%+1,51613F-HRTimeline
Cetera Investment Advisers11,612$122K<0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS11,563$122K<0.01%new13F-HRTimeline
Bryce Point Capital, LLC11,146$117K0.14%new13F-HRTimeline
IPG Investment Advisors LLC10,950$115K0.02%new13F-HRTimeline
Atom Investors LP10,472$110K0.01%new13F-HRTimeline
LANARK FINANCIAL, INC.8,438$88.8K0.01%new13F-HRTimeline
FMR LLCin group FMR LLC8,221$86.5K<0.01%+26513F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…7,787$81.9K<0.01%-1,72913F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…7,539$79.3K<0.01%+2,12613F-HRTimelineGroup
Geneos Wealth Management Inc.7,045$74.1K<0.01%new13F-HRTimeline
Parallel Advisors, LLC5,121$53.9K<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP4,532$49.5K<0.01%+3,53213F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.4,602$47.4K<0.01%+3,40213F-HRTimelineGroup
CWM, LLCin group CWM, LLC4,462$47K<0.01%-1913F-HRTimelineGroup
Quarry LP3,990$42K0.01%new13F-HRTimeline
EASTERN BANK2,000$21K<0.01%013F-HRTimeline
DHJJ Financial Advisors, Ltd.2,000$21K0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,639$17.2K<0.01%+1,20013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,428$15K<0.01%+1413F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.610$6.42K<0.01%new13F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.600$6.31K<0.01%new13F-HRTimeline
AMALGAMATED BANK566$6K<0.01%013F-HRTimeline
Aspect Partners, LLC555$5.84K<0.01%new13F-HRTimeline
Arax Advisory Partners400$4.21K<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\361$3.8K<0.01%new13F-HRTimelineGroup
MCF Advisors LLC292$3.07K<0.01%new13F-HRTimeline
Essential Partners LLC245$2.58K<0.01%013F-HRTimeline
Sterling Capital Management LLC226$2.38K<0.01%+113F-HRTimeline
Steward Partners Investment Advisory, L…222$2.33K<0.01%013F-HRTimeline
DELTA ASSET MANAGEMENT LLC/TN200$2.1K<0.01%-15013F-HRTimeline
NVWM, LLC150$1.58K<0.01%new13F-HRTimeline
Fortitude Family Office, LLC101$1.06K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC77$810<0.01%+7613F-HRTimeline
GAMMA Investing LLC77$810<0.01%new13F-HRTimeline
True Wealth Design, LLC61$642<0.01%013F-HRTimeline
HOLLENCREST CAPITAL MANAGEMENT40$421<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…30$316<0.01%new13F-HRTimelineGroup
SWAN Capital LLC29$305<0.01%new13F-HRTimeline
Allworth Financial LP28$295<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…20$210<0.01%013F-HRTimelineGroup