AMPX

Institutional Ownership

Top 263 Institutional Holders
HolderSharesDateChange% Held
Stephens Investment Management Group LLC893.11KMar 31, 26-548.59K0.65%
SG Americas Securities, LLC423.04KMar 31, 26+167.78K0.31%
OPPENHEIMER & CO INC412.51KMar 31, 26-29.58K0.30%
Palisades Investment Partners, LLC369.48KMar 31, 26+369.48K0.27%
Calamos Advisors LLC364.51KMar 31, 26+245.47K0.27%
Nuveen, LLC243.90KMar 31, 26+10.74K0.18%
ZEVENBERGEN CAPITAL INVESTMENTS LLC236.88KMar 31, 26+236.88K0.17%
Y-Intercept (Hong Kong) Ltd164.22KMar 31, 26+164.22K0.12%
Huntleigh Advisors, Inc.162.91KMar 31, 26+2.31K0.12%
Janney Montgomery Scott LLC145.25KMar 31, 26-23.23K0.11%
SLT Holdings LLC101.05KMar 31, 26-22.25K0.07%
Alberta Investment Management Corp82.00KMar 31, 26-44.90K0.06%
B. Riley Wealth Advisors, Inc.50.20KMar 31, 26--0.04%
KINGSWOOD WEALTH ADVISORS, LLC48.70KMar 31, 26+1.00K0.04%
Mirae Asset Global Investments Co., Ltd.47.51KMar 31, 26-8.59K0.03%
Richmond Investment Services, LLC39.99KMar 31, 26+29.14K0.03%
Cambridge Investment Research Advisors, Inc.39.69KMar 31, 26+39.69K0.03%
KLP KAPITALFORVALTNING AS35.90KMar 31, 26--0.03%
Counterpoint Mutual Funds LLC32.49KMar 31, 26-5500.02%
Arizona State Retirement System32.28KMar 31, 26+1.22K0.02%
Police & Firemen's Retirement System of New Jersey31.59KMar 31, 26+1.98K0.02%
Harbour Capital Advisors, LLC31.48KMar 31, 26+31.48K0.02%
Inspire Investing, LLC31.05KMar 31, 26-29.19K0.02%
CORNERSTONE PARTNERS CAPITAL MANAGEMENT, LLC30.71KMar 31, 26--0.02%
Sigma Planning Corp30.29KMar 31, 26+30.29K0.02%
STEPHENS INC /AR/28.89KMar 31, 26-3320.02%
ENVESTNET ASSET MANAGEMENT INC28.09KMar 31, 26+12.09K0.02%
COMMONWEALTH EQUITY SERVICES, LLC27.67KMar 31, 26+6.10K0.02%
PRINCIPAL FINANCIAL GROUP INC25.38KMar 31, 26+25.38K0.02%
FNY Investment Advisers, LLC20.76KMar 31, 26+20.76K0.02%
EWA, LLC19.55KMar 31, 26-4070.01%
NBC SECURITIES, INC.17.64KMar 31, 26+2.06K0.01%
ProShare Advisors LLC16.70KMar 31, 26-3.46K0.01%
Pictet Asset Management Holding SA16.10KMar 31, 26--0.01%
Hidden Cove Wealth Management, LLC13.69KMar 31, 26+13.69K0.01%
Bayforest Capital Ltd11.48KMar 31, 26-25.41K0.01%
MITCHELL & PAHL PRIVATE WEALTH, LLC10.00KMar 31, 26+10.00K0.01%
Joel Isaacson & Co., LLC10.00KMar 31, 26+10.00K0.01%
Central Pacific Bank - Trust Division7.00KMar 31, 26+7.00K0.01%
NISA INVESTMENT ADVISORS, LLC4.58KMar 31, 26+3.40K0.00%
Farther Finance Advisors, LLC2.19KMar 31, 26+2.02K0.00%
EASTERN BANK2.00KMar 31, 26--0.00%
DHJJ Financial Advisors, Ltd.2.00KMar 31, 26--0.00%
Bank of New Hampshire1.79KMar 31, 26+1.79K0.00%
Global X Japan Co., Ltd.1.53KMar 31, 26+460.00%
GAMMA Investing LLC881Mar 31, 26+1150.00%
Sterling Capital Management LLC748Mar 31, 26+270.00%
Golden State Equity Partners600Mar 31, 26+6000.00%
HIGHLINE WEALTH PARTNERS LLC300Mar 31, 26+3000.00%
FIFTH THIRD BANCORP286Mar 31, 26+2860.00%
NVWM, LLC264Mar 31, 26+400.00%
CoreCap Advisors, LLC246Mar 31, 26+2460.00%
SJS Investment Consulting Inc.205Mar 31, 26+2050.00%
Avion Wealth200Mar 31, 26+2000.00%
Fortitude Family Office, LLC198Mar 31, 26+970.00%
ARMSTRONG ADVISORY GROUP, INC148Mar 31, 26--0.00%
Root Financial Partners, LLC73Mar 31, 26+730.00%
MASSMUTUAL TRUST CO FSB/ADV66Mar 31, 26+660.00%
True Wealth Design, LLC61Mar 31, 26--0.00%
Versant Capital Management, Inc18Mar 31, 26+180.00%
Aspect Partners, LLC17Mar 31, 26-4580.00%
PharVision Advisers, LLC--Mar 31, 26-42.99K--
Ambassador Advisors, LLC--Mar 31, 26-101.17K--
Abacus Wealth Partners, LLC--Mar 31, 26-20.00K--
SIGNATUREFD, LLC--Mar 31, 26-172--
IFP Advisors, Inc--Mar 31, 26-9--
DMC Group, LLC--Mar 31, 26-13.20K--
CLEAR STREET MARKETS LLC--Mar 31, 26-6.85K--
Artemis Investment Management LLP--Mar 31, 26-464.03K--
BlackRock, Inc.8.82MDec 31, 25+1.37M6.44%
VANGUARD GROUP INC7.13MDec 31, 25+616.04K5.20%
MORGAN STANLEY2.81MDec 31, 25+66.12K2.05%
GEODE CAPITAL MANAGEMENT, LLC2.68MDec 31, 25+253.53K1.95%
STATE STREET CORP2.55MDec 31, 25+363.93K1.86%
DRIEHAUS CAPITAL MANAGEMENT LLC2.39MDec 31, 25-697.46K1.75%
GOLDMAN SACHS GROUP INC2.19MDec 31, 25+410.72K1.60%
UBS Group AG2.10MDec 31, 25+550.94K1.53%
DEUTSCHE BANK AG\1.96MDec 31, 25-111.52K1.43%
SUSQUEHANNA INTERNATIONAL GROUP, LLP1.69MDec 31, 25+786.03K1.23%
VOLORIDGE INVESTMENT MANAGEMENT, LLC1.60MDec 31, 25-274.14K1.17%
TWO SIGMA INVESTMENTS, LP1.44MDec 31, 25-316.64K1.05%
Invesco Ltd.1.31MDec 31, 25-1.07M0.96%
NORGES BANK1.30MDec 31, 25+1.30M0.95%
Hudson Bay Capital Management LP1.10MDec 31, 25+1.10M0.80%
MILLENNIUM MANAGEMENT LLC1.09MDec 31, 25+497.44K0.79%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.04MDec 31, 25+62.41K0.76%
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC984.91KDec 31, 25+984.91K0.72%
NORTHERN TRUST CORP963.17KDec 31, 25+110.89K0.70%
JUPITER ASSET MANAGEMENT LTD960.91KDec 31, 25+761.53K0.70%
Qube Research & Technologies Ltd874.08KDec 31, 25+874.08K0.64%
Hood River Capital Management LLC809.74KDec 31, 25+809.74K0.59%
Baird Financial Group, Inc.773.43KDec 31, 25-103.50K0.56%
STIFEL FINANCIAL CORP771.51KDec 31, 25-24.28K0.56%
BNP PARIBAS ARBITRAGE, SNC707.08KDec 31, 25-1.24M0.52%
THAMES CAPITAL MANAGEMENT LLC526.83KDec 31, 25--0.38%
ESSEX INVESTMENT MANAGEMENT CO LLC516.76KDec 31, 25-180.62K0.38%
Point72 Asset Management, L.P.493.86KDec 31, 25+459.95K0.36%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.490.89KDec 31, 25-19.57K0.36%
TWO SIGMA ADVISERS, LP479.50KDec 31, 25-332.50K0.35%
BARCLAYS PLC469.91KDec 31, 25+336.57K0.34%
CITADEL ADVISORS LLC454.85KDec 31, 25-2.05M0.33%
OSTERWEIS CAPITAL MANAGEMENT INC454.83KDec 31, 25+267.38K0.33%
SEI INVESTMENTS CO431.79KDec 31, 25+353.07K0.32%
Engineers Gate Manager LP360.40KDec 31, 25+171.58K0.26%
SILVERCREST ASSET MANAGEMENT GROUP LLC359.39KDec 31, 25+359.39K0.26%
Bank of New York Mellon Corp309.71KDec 31, 25+17.81K0.23%
BANK OF AMERICA CORP /DE/299.93KDec 31, 25+9.48K0.22%
Verition Fund Management LLC292.10KDec 31, 25-31.35K0.21%
POLEN CAPITAL MANAGEMENT LLC288.29KDec 31, 25-51.14K0.21%
FEDERATED HERMES, INC.286.66KDec 31, 25+194.85K0.21%
Walleye Capital LLC269.41KDec 31, 25+138.63K0.20%
EAM Investors, LLC236.81KDec 31, 25-251.72K0.17%
Russell Investments Group, Ltd.235.02KDec 31, 25-70.05K0.17%
RAYMOND JAMES FINANCIAL INC224.43KDec 31, 25-15.54K0.16%
Swiss National Bank222.00KDec 31, 25+46.70K0.16%
Squarepoint Ops LLC218.05KDec 31, 25+160.44K0.16%
JANE STREET GROUP, LLC213.43KDec 31, 25-463.24K0.16%
HUSSMAN STRATEGIC ADVISORS, INC.210.00KDec 31, 25+210.00K0.15%
Legato Capital Management LLC204.65KDec 31, 25-46.62K0.15%
Lisanti Capital Growth, LLC198.89KDec 31, 25-66.83K0.15%
Voleon Capital Management LP191.17KDec 31, 25+157.66K0.14%
UBS ASSET MANAGEMENT AMERICAS INC188.84KDec 31, 25+72.36K0.14%
ALPS ADVISORS INC147.06KDec 31, 25-1.72K0.11%
WELLS FARGO & COMPANY/MN142.35KDec 31, 25+83.59K0.10%
Amundi140.31KDec 31, 25+140.31K0.10%
AQR CAPITAL MANAGEMENT LLC136.10KDec 31, 25+4.59K0.10%
ALGERT GLOBAL LLC132.65KDec 31, 25-250.37K0.10%
RHUMBLINE ADVISERS125.15KDec 31, 25-4.84K0.09%
Foundations Investment Advisors, LLC124.13KDec 31, 25+3.00K0.09%
ALLIANCEBERNSTEIN L.P.123.86KDec 31, 25--0.09%
Calamos Advisors LLC119.03KDec 31, 25-52.02K0.09%
MANGROVE PARTNERS116.62KDec 31, 25+116.62K0.09%
LPL Financial LLC114.71KDec 31, 25-50.69K0.08%
RENAISSANCE TECHNOLOGIES LLC112.83KDec 31, 25+100.42K0.08%
BOOTHBAY FUND MANAGEMENT, LLC112.32KDec 31, 25+96.21K0.08%
CAPITAL FUND MANAGEMENT S.A.109.02KDec 31, 25-22.39K0.08%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM107.93KDec 31, 25+24.30K0.08%
Legal & General Group Plc102.16KDec 31, 25+14.78K0.07%
GSA CAPITAL PARTNERS LLP96.69KDec 31, 25-4.36K0.07%
Numerai GP LLC96.21KDec 31, 25+21.70K0.07%
ROYAL BANK OF CANADA91.92KDec 31, 25-35.47K0.07%
JPMORGAN CHASE & CO83.45KDec 31, 25-204.27K0.06%
PRICE T ROWE ASSOCIATES INC /MD/80.58KDec 31, 25+31.46K0.06%
FRANKLIN RESOURCES INC78.84KDec 31, 25+78.84K0.06%
Polar Asset Management Partners Inc.78.60KDec 31, 25+78.60K0.06%
AMERIPRISE FINANCIAL INC78.01KDec 31, 25+44.99K0.06%
FOX RUN MANAGEMENT, L.L.C.74.77KDec 31, 25+42.25K0.05%
CITIGROUP INC74.76KDec 31, 25-21.97K0.05%
CoreCommodity Management, LLC74.02KDec 31, 25+35.25K0.05%
DARK FOREST CAPITAL MANAGEMENT LP71.89KDec 31, 25+51.75K0.05%
Granahan Investment Management, LLC64.38KDec 31, 25+64.38K0.05%
MetLife Investment Management, LLC60.51KDec 31, 25+2.31K0.04%
HITE Hedge Asset Management LLC57.80KDec 31, 25--0.04%
Mirae Asset Global Investments Co., Ltd.56.09KDec 31, 25-2.34K0.04%
CANADA PENSION PLAN INVESTMENT BOARD55.10KDec 31, 25+55.10K0.04%
Allspring Global Investments Holdings, LLC53.91KDec 31, 25+4.81K0.04%
INTECH INVESTMENT MANAGEMENT LLC51.11KDec 31, 25+12.91K0.04%
AlphaCentric Advisors LLC50.00KDec 31, 25+50.00K0.04%
Graham Capital Management, L.P.49.60KDec 31, 25+1.55K0.04%
Zurcher Kantonalbank (Zurich Cantonalbank)42.49KDec 31, 25+17.81K0.03%
BESSEMER GROUP INC41.33KDec 31, 25--0.03%
PRUDENTIAL FINANCIAL INC41.24KDec 31, 25-89.98K0.03%
BLAIR WILLIAM & CO/IL40.15KDec 31, 25+15.36K0.03%
JANUS HENDERSON GROUP PLC39.05KDec 31, 25--0.03%
FORA Capital, LLC38.93KDec 31, 25+25.54K0.03%
US BANCORP \DE\37.93KDec 31, 25+37.57K0.03%
LOS ANGELES CAPITAL MANAGEMENT LLC35.69KDec 31, 25--0.03%
MANUFACTURERS LIFE INSURANCE COMPANY, THE33.28KDec 31, 25+1.62K0.02%
FIRST TRUST ADVISORS LP32.74KDec 31, 25+2.07K0.02%
Advisory Services Network, LLC31.51KDec 31, 25+1.04K0.02%
Trexquant Investment LP31.01KDec 31, 25-218.28K0.02%
Cetera Investment Advisers30.72KDec 31, 25+19.11K0.02%
NEW YORK STATE COMMON RETIREMENT FUND29.64KDec 31, 25--0.02%
ExodusPoint Capital Management, LP26.56KDec 31, 25+26.56K0.02%
Aquatic Capital Management LLC26.22KDec 31, 25+26.22K0.02%
Creative Planning24.76KDec 31, 25+1.94K0.02%
Lombard Odier Asset Management (USA) Corp23.94KDec 31, 25+23.94K0.02%
DRW Securities, LLC23.32KDec 31, 25+6.90K0.02%
Colony Group, LLC22.04KDec 31, 25-4.44K0.02%
AXQ CAPITAL, LP21.17KDec 31, 25+3.80K0.02%
Toroso Investments, LLC21.10KDec 31, 25+350.02%
Bridgefront Capital, LLC20.61KDec 31, 25+20.61K0.02%
VOYA INVESTMENT MANAGEMENT LLC19.37KDec 31, 25+2.49K0.01%
Vanguard Personalized Indexing Management, LLC17.96KDec 31, 25-1.68K0.01%
MidWestOne Financial Group, Inc.17.01KDec 31, 25-1.30K0.01%
ENVESTNET ASSET MANAGEMENT INC16.01KDec 31, 25-6.09K0.01%
Wealthfront Advisers LLC14.35KDec 31, 25+14.35K0.01%
HighTower Advisors, LLC14.03KDec 31, 25-2.80K0.01%
CAPITAL PERFORMANCE ADVISORS LLP13.97KDec 31, 25+13.97K0.01%
Vident Advisory, LLC13.56KDec 31, 25+13.56K0.01%
VICTORY CAPITAL MANAGEMENT INC12.82KDec 31, 25+1.00K0.01%
Scientech Research LLC12.81KDec 31, 25+12.81K0.01%
Universal- Beteiligungs- und Servicegesellschaft mbH11.27KDec 31, 25+11.27K0.01%
Brinker Capital Investments, LLC10.92KDec 31, 25+10.92K0.01%
Worth Venture Partners, LLC10.88KDec 31, 25+10.88K0.01%
Geneos Wealth Management Inc.10.65KDec 31, 25+3.60K0.01%
Jump Financial, LLC10.38KDec 31, 25-232.32K0.01%
JONES FINANCIAL COMPANIES LLLP9.52KDec 31, 25+4.99K0.01%
FMR LLC8.98KDec 31, 25+7640.01%
Ameritas Investment Partners, Inc.8.96KDec 31, 25+1.17K0.01%
ADVISOR GROUP HOLDINGS, INC.8.67KDec 31, 25+4.07K0.01%
Caitong International Asset Management Co., Ltd8.36KDec 31, 25-6.86K0.01%
Parallel Advisors, LLC5.12KDec 31, 25--0.00%
CWM, LLC4.50KDec 31, 25+350.00%
ACADIAN ASSET MANAGEMENT LLC3.67KDec 31, 25+3.67K0.00%
AMALGAMATED BANK3.47KDec 31, 25+2.90K0.00%
Quarry LP2.91KDec 31, 25-1.08K0.00%
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU SA2.50KDec 31, 25+2.50K0.00%
State of Wyoming2.37KDec 31, 25+2.37K0.00%
BNP Paribas Asset Management Holding S.A.1.62KDec 31, 25+1.62K0.00%
PNC FINANCIAL SERVICES GROUP, INC.1.49KDec 31, 25+590.00%
Tower Research Capital LLC (TRC)1.43KDec 31, 25-6.11K0.00%
Rockefeller Capital Management L.P.376Dec 31, 25+3460.00%
Optiver Holding B.V.352Dec 31, 25-2580.00%
Federation des caisses Desjardins du Quebec300Dec 31, 25+3000.00%
Steward Partners Investment Advisory, LLC272Dec 31, 25+500.00%
DELTA ASSET MANAGEMENT LLC/TN205Dec 31, 25+50.00%
ORG Partners LLC120Dec 31, 25+1200.00%
Allworth Financial LP70Dec 31, 25+420.00%
HOLLENCREST CAPITAL MANAGEMENT40Dec 31, 25--0.00%
EverSource Wealth Advisors, LLC20Dec 31, 25--0.00%
DV Trading LLC16Dec 31, 25+160.00%
Larson Financial Group LLC15Dec 31, 25+150.00%
SRS Capital Advisors, Inc.6Dec 31, 25-3940.00%
CIBC Private Wealth Group, LLC1Dec 31, 25+10.00%
Quantbot Technologies LP--Dec 31, 25-131.92K--
Quadrature Capital Ltd--Dec 31, 25-180.20K--
NEXT CENTURY GROWTH INVESTORS LLC--Dec 31, 25-228.63K--
PRELUDE CAPITAL MANAGEMENT, LLC--Dec 31, 25-14.02K--
Entropy Technologies, LP--Dec 31, 25-90.10K--
PICTON MAHONEY ASSET MANAGEMENT--Dec 31, 25-70.98K--
Brevan Howard Capital Management LP--Dec 31, 25-69.79K--
HARBOUR INVESTMENTS, INC.--Dec 31, 25-600--
Atom Investors LP--Dec 31, 25-10.47K--
Diametric Capital, LP--Dec 31, 25-31.74K--
AIGEN INVESTMENT MANAGEMENT, LP--Dec 31, 25-27.19K--
HRT FINANCIAL LP--Dec 31, 25-150.56K--
GROUP ONE TRADING, L.P.--Dec 31, 25-28.89K--
XTX Topco Ltd--Dec 31, 25-173.00K--
Dynamic Technology Lab Private Ltd--Dec 31, 25-51.55K--
Capitolis Liquid Global Markets LLC--Dec 31, 25-680.60K--
MARSHALL WACE, LLP--Dec 31, 25-30.37K--
IPG Investment Advisors LLC--Dec 31, 25-10.95K--
TUDOR INVESTMENT CORP ET AL--Dec 31, 25-715.74K--
STATE OF WISCONSIN INVESTMENT BOARD--Dec 31, 25-31.94K--
Schonfeld Strategic Advisors LLC--Dec 31, 25-65.39K--
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP--Dec 31, 25-471.79K--
OMERS ADMINISTRATION Corp--Dec 31, 25-64.40K--
MCF Advisors LLC--Dec 31, 25-292--
SWAN Capital LLC--Dec 31, 25-29--
Cubist Systematic Strategies, LLC174.76KSep 30, 25+4.35K0.13%
Bryce Point Capital, LLC11.15KSep 30, 25+11.15K0.01%
Point72 (DIFC) Ltd--Sep 30, 25-738--
CLEAR STREET LLC10.00KJun 30, 25--0.01%
Orion Portfolio Solutions, LLC10.24KMar 31, 25+10.24K0.01%
Nuveen Asset Management, LLC23.30KDec 31, 24-55.85K0.02%
COWEN AND COMPANY, LLC60.00KSep 30, 24-190.00K0.04%
BlackRock Inc.629.73KJun 30, 24+106.94K0.46%
BUCKINGHAM STRATEGIC WEALTH, LLC15.98KJun 30, 24+15.98K0.01%
Cutler Group LLC / CA2.10KMar 31, 24-6860.00%
CAMBRIDGE TRUST CO2.00KMar 31, 24--0.00%
KPCB XIV Associates, LLC100.00KSep 30, 23--0.07%
PATHSTONE FAMILY OFFICE, LLC12.75KSep 30, 23+12.75K0.01%