SPOK

Institutional Ownership

Top 190 Institutional Holders
HolderSharesDateChange% Held
BlackRock, Inc.1.68MMar 31, 26-123.32K8.03%
RENAISSANCE TECHNOLOGIES LLC1.26MMar 31, 26+15.00K6.04%
DIMENSIONAL FUND ADVISORS LP715.87KMar 31, 26+12.04K3.43%
GEODE CAPITAL MANAGEMENT, LLC545.72KMar 31, 26-52.83K2.61%
STATE STREET CORP461.79KMar 31, 26+14.87K2.21%
HighTower Advisors, LLC381.81KMar 31, 26-5601.83%
GOLDMAN SACHS GROUP INC219.58KMar 31, 26-142.89K1.05%
Bank of New York Mellon Corp217.80KMar 31, 26+4.99K1.04%
NORTHERN TRUST CORP216.54KMar 31, 26-5511.04%
CSM Advisors, LLC213.13KMar 31, 26-49.81K1.02%
Uniplan Investment Counsel, Inc.209.60KMar 31, 26+48.60K1.00%
Qube Research & Technologies Ltd172.06KMar 31, 26-6.04K0.82%
MORGAN STANLEY159.83KMar 31, 26-17.87K0.77%
Connor, Clark & Lunn Investment Management Ltd.144.85KMar 31, 26-52.01K0.69%
VANGUARD FIDUCIARY TRUST CO129.25KMar 31, 26+129.25K0.62%
Trexquant Investment LP128.86KMar 31, 26-41.80K0.62%
North Star Investment Management Corp.122.00KMar 31, 26--0.58%
JACOBS LEVY EQUITY MANAGEMENT, INC116.81KMar 31, 26-2.16K0.56%
MARSHALL WACE, LLP112.79KMar 31, 26+112.79K0.54%
UNITED CAPITAL FINANCIAL ADVISERS, LLC104.72KMar 31, 26+104.72K0.50%
Point72 Asset Management, L.P.89.63KMar 31, 26+70.90K0.43%
D. E. Shaw & Co., Inc.89.45KMar 31, 26+18.82K0.43%
JANE STREET GROUP, LLC86.52KMar 31, 26+72.76K0.41%
GSA CAPITAL PARTNERS LLP85.82KMar 31, 26+45.80K0.41%
PANAGORA ASSET MANAGEMENT INC78.30KMar 31, 26-14.79K0.37%
Fidelis Capital Partners, LLC75.00KMar 31, 26+75.00K0.36%
Nuveen, LLC73.34KMar 31, 26+5180.35%
JPMORGAN CHASE & CO69.69KMar 31, 26-22.13K0.33%
Numerai GP LLC69.02KMar 31, 26+69.02K0.33%
FIRST TRUST ADVISORS LP65.50KMar 31, 26+3790.31%
Engineers Gate Manager LP64.07KMar 31, 26+27.71K0.31%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC56.03KMar 31, 26-4.95K0.27%
Campbell & CO Investment Adviser LLC50.87KMar 31, 26+1.83K0.24%
Keebeck Wealth Management, LLC50.00KMar 31, 26+10.00K0.24%
Man Group plc48.33KMar 31, 26+21.89K0.23%
AMERICAN CENTURY COMPANIES INC43.37KMar 31, 26-3150.21%
AQR CAPITAL MANAGEMENT LLC43.13KMar 31, 26+26.77K0.21%
VICTORY CAPITAL MANAGEMENT INC42.82KMar 31, 26+5.78K0.20%
HSBC HOLDINGS PLC41.50KMar 31, 26-18.83K0.20%
Dynamic Technology Lab Private Ltd37.54KMar 31, 26+37.54K0.18%
MILLENNIUM MANAGEMENT LLC37.16KMar 31, 26-88.65K0.18%
RHUMBLINE ADVISERS31.19KMar 31, 26-3400.15%
Invesco Ltd.30.48KMar 31, 26-4550.15%
UBS Group AG29.02KMar 31, 26-27.94K0.14%
ALLIANCEBERNSTEIN L.P.28.16KMar 31, 26+4.00K0.13%
BRIDGEWAY CAPITAL MANAGEMENT, LLC26.60KMar 31, 26+26.60K0.13%
BANK OF AMERICA CORP /DE/26.53KMar 31, 26-9.96K0.13%
Quantinno Capital Management LP26.15KMar 31, 26-66.58K0.13%
MARTINGALE ASSET MANAGEMENT L P23.02KMar 31, 26-6690.11%
STATE OF WISCONSIN INVESTMENT BOARD20.30KMar 31, 26+9.20K0.10%
TWO SIGMA INVESTMENTS, LP19.90KMar 31, 26-42.69K0.10%
Cambria Investment Management, L.P.19.74KMar 31, 26+7.59K0.09%
WELLS FARGO & COMPANY/MN18.99KMar 31, 26-10.64K0.09%
OCCUDO QUANTITATIVE STRATEGIES LP18.95KMar 31, 26+5.42K0.09%
Hennion & Walsh Asset Management, Inc.18.71KMar 31, 26-1390.09%
DEUTSCHE BANK AG\17.97KMar 31, 26+4.82K0.09%
CITADEL ADVISORS LLC17.77KMar 31, 26-31.92K0.09%
Aquatic Capital Management LLC17.34KMar 31, 26+12.38K0.08%
AMERIPRISE FINANCIAL INC16.88KMar 31, 26-3.13K0.08%
Significant Wealth Partners LLC16.68KMar 31, 26+1.89K0.08%
BARCLAYS PLC15.32KMar 31, 26-29.20K0.07%
Empowered Funds, LLC15.20KMar 31, 26+15.20K0.07%
CANADA PENSION PLAN INVESTMENT BOARD15.20KMar 31, 26--0.07%
FMR LLC15.03KMar 31, 26-111.95K0.07%
EntryPoint Capital, LLC14.85KMar 31, 26+14.85K0.07%
PRICE T ROWE ASSOCIATES INC /MD/14.79KMar 31, 26+4.05K0.07%
Magnetar Financial LLC13.90KMar 31, 26-7.58K0.07%
SUSQUEHANNA INTERNATIONAL GROUP, LLP13.06KMar 31, 26+13.06K0.06%
Squarepoint Ops LLC12.48KMar 31, 26-3.63K0.06%
Brady Martz Wealth Solutions, LLC12.22KMar 31, 26+12.22K0.06%
Buckingham Strategic Partners12.11KMar 31, 26+12.11K0.06%
Quadrature Capital Ltd11.37KMar 31, 26+11.37K0.05%
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO10.67KMar 31, 26--0.05%
Grantham, Mayo, Van Otterloo & Co. LLC10.47KMar 31, 26-1.83K0.05%
AXQ CAPITAL, LP10.28KMar 31, 26+10.28K0.05%
Redhawk Wealth Advisors, Inc.10.13KMar 31, 26+10.13K0.05%
OXFORD ASSET MANAGEMENT LLP10.02KMar 31, 26-3320.05%
State of Wyoming10.01KMar 31, 26+6.17K0.05%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.9.68KMar 31, 26+2380.05%
Vanguard Global Advisers, LLC8.99KMar 31, 26+8.99K0.04%
Russell Investments Group, Ltd.7.85KMar 31, 26+4.11K0.04%
Virtus ETF Advisers LLC7.13KMar 31, 26-7.54K0.03%
Truvestments Capital LLC7.01KMar 31, 26-1.81K0.03%
Police & Firemen's Retirement System of New Jersey6.60KMar 31, 26--0.03%
MetLife Investment Management, LLC6.47KMar 31, 26-4.58K0.03%
CWM, LLC5.87KMar 31, 26+5.02K0.03%
New Age Alpha Advisors, LLC5.86KMar 31, 26--0.03%
Triumph Capital Management5.50KMar 31, 26+7000.03%
BNP PARIBAS ARBITRAGE, SNC4.39KMar 31, 26-2970.02%
Tower Research Capital LLC (TRC)4.17KMar 31, 26+1.47K0.02%
Legal & General Group Plc3.95KMar 31, 26--0.02%
Rockefeller Capital Management L.P.2.74KMar 31, 26+2.19K0.01%
GREAT WEST LIFE ASSURANCE CO /CAN/2.56KMar 31, 26+1000.01%
Ameritas Investment Partners, Inc.2.08KMar 31, 26--0.01%
Larson Financial Group LLC2.00KMar 31, 26--0.01%
SBI Securities Co., Ltd.1.86KMar 31, 26+1120.01%
CITIGROUP INC1.63KMar 31, 26-5.41K0.01%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM1.10KMar 31, 26-1500.01%
NISA INVESTMENT ADVISORS, LLC792Mar 31, 26--0.00%
ROYAL BANK OF CANADA756Mar 31, 26-2.34K0.00%
Sterling Capital Management LLC674Mar 31, 26-5000.00%
State of Alaska, Department of Revenue653Mar 31, 26--0.00%
PNC FINANCIAL SERVICES GROUP, INC.550Mar 31, 26+4740.00%
Covestor Ltd542Mar 31, 26+560.00%
GAMMA Investing LLC472Mar 31, 26-1.37K0.00%
NEW YORK STATE COMMON RETIREMENT FUND450Mar 31, 26--0.00%
HARBOUR INVESTMENTS, INC.320Mar 31, 26+2000.00%
Geneos Wealth Management Inc.200Mar 31, 26--0.00%
Optiver Holding B.V.162Mar 31, 26-1040.00%
JONES FINANCIAL COMPANIES LLLP150Mar 31, 26-1630.00%
ADVISOR GROUP HOLDINGS, INC.150Mar 31, 26-2000.00%
Farther Finance Advisors, LLC137Mar 31, 26-720.00%
Allworth Financial LP129Mar 31, 26+1200.00%
Steward Partners Investment Advisory, LLC100Mar 31, 26--0.00%
UBS ASSET MANAGEMENT AMERICAS INC97Mar 31, 26-410.00%
Versant Capital Management, Inc89Mar 31, 26-6.56K0.00%
MAI Capital Management84Mar 31, 26+600.00%
ROTHSCHILD INVESTMENT LLC74Mar 31, 26+720.00%
TD Waterhouse Canada Inc.68Mar 31, 26--0.00%
Capital Advisors, Ltd. LLC65Mar 31, 26--0.00%
JPL Wealth Management, LLC55Mar 31, 26+550.00%
EverSource Wealth Advisors, LLC49Mar 31, 26+10.00%
IFP Advisors, Inc49Mar 31, 26+210.00%
HUNTINGTON NATIONAL BANK40Mar 31, 26+400.00%
Sound Income Strategies, LLC29Mar 31, 26+290.00%
SRS Capital Advisors, Inc.27Mar 31, 26+110.00%
QUADRANT CAPITAL GROUP LLC20Mar 31, 26-70.00%
SIMPLEX TRADING, LLC19Mar 31, 26-510.00%
FIFTH THIRD BANCORP16Mar 31, 26--0.00%
Wealth Preservation Advisors, LLC13Mar 31, 26+130.00%
SJS Investment Consulting Inc.10Mar 31, 26+100.00%
True Wealth Design, LLC7Mar 31, 26-380.00%
Sunbelt Securities, Inc.2Mar 31, 26+20.00%
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/--Mar 31, 26-61--
Kestra Advisory Services, LLC--Mar 31, 26-1.74K--
Parallel Advisors, LLC--Mar 31, 26-258--
LOS ANGELES CAPITAL MANAGEMENT LLC--Mar 31, 26-102.02K--
AMALGAMATED BANK--Mar 31, 26-640--
NewEdge Advisors, LLC--Mar 31, 26-643--
Hillsdale Investment Management Inc.--Mar 31, 26-14.10K--
ACADIAN ASSET MANAGEMENT LLC--Mar 31, 26-322.04K--
BOOTHBAY FUND MANAGEMENT, LLC--Mar 31, 26-22.23K--
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC--Mar 31, 26-30--
Private Wealth Management Group, LLC--Mar 31, 26-34--
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM--Mar 31, 26-22.70K--
Brevan Howard Capital Management LP--Mar 31, 26-19.18K--
ALGERT GLOBAL LLC--Mar 31, 26-12.08K--
VANGUARD GROUP INC1.23MDec 31, 25+74.45K5.88%
TWO SIGMA ADVISERS, LP42.07KDec 31, 25-25.73K0.20%
Quest Partners LLC9.17KDec 31, 25+2170.04%
McIlrath & Eck, LLC1.45KDec 31, 25-7150.01%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM1.25KDec 31, 25-170.01%
SageView Advisory Group, LLC60Dec 31, 25+600.00%
Cubist Systematic Strategies, LLC33.98KSep 30, 25-4.98K0.16%
Point72 Asia (Singapore) Pte. Ltd.255Sep 30, 25+2550.00%
Point72 (DIFC) Ltd35Sep 30, 25+350.00%
Financial Advocates Investment Management--Sep 30, 25-15.87K--
Foundry Partners, LLC359.93KMar 31, 25-2.12K1.72%
Nuveen Asset Management, LLC81.34KDec 31, 24-3.99K0.39%
BlackRock Inc.1.43MJun 30, 24+9.45K6.83%
Jenkins Wealth21.12KDec 31, 22+21.12K0.10%
Personal Capital Advisors Corp--Dec 31, 22-13.82K--
PARAMETRIC PORTFOLIO ASSOCIATES LLC11.40KMar 31, 22-3.88K0.05%
FIRST QUADRANT LLC/CA--Mar 31, 22-14.60K--
Meristem Family Wealth, LLC--Mar 31, 22-11.00K--
Carroll Financial Associates, Inc.--Dec 31, 21-138--
Berman Capital Advisors, LLC--Sep 30, 21-101--
FIRST HORIZON CORP13Jun 30, 21--0.00%
CHICAGO EQUITY PARTNERS LLC--Mar 31, 20-11.72K--
Balter Liquid Alternatives, LLC37.79KJun 30, 19+37.79K0.18%
MENTA CAPITAL LLC11.99KJun 30, 19-5.67K0.06%
TEACHERS ADVISORS, LLC39.46KMar 31, 19--0.19%
TIAA CREF INVESTMENT MANAGEMENT LLC36.63KMar 31, 19--0.18%
NEXT Financial Holdings4Mar 31, 19+40.00%
PEAK6 Group LLC--Jun 30, 18-7.11K--
Numeric Investors LLC727.67KDec 31, 17+4.10K3.48%
Acrospire Investment Management LLC--Sep 30, 17-350--
BlackRock Fund Advisors2.62MDec 31, 16-153.29K12.54%
BlackRock Institutional Trust Company, N.A.681.57KDec 31, 16-7.76K3.26%
BlackRock Investment Management, LLC117.84KDec 31, 16+19.55K0.56%
BlackRock Group LTD48.68KDec 31, 16+8.91K0.23%
BLACKROCK ADVISORS LLC11.17KDec 31, 16+1780.05%
MSI Financial Services Inc50Dec 31, 16+500.00%
Emerald Acquisition Ltd.77.89KSep 30, 16-89.56K0.37%
ANALYTIC INVESTORS, LLC15.46KSep 30, 16--0.07%
RUSSELL FRANK CO/193.95KMar 31, 16+178.75K0.93%
OFI Advisors LLC6.50KSep 30, 15-2670.03%
Braeside Investments, LLC1.98MSep 30, 14+1.98M9.47%
QS BATTERYMARCH FINANCIAL MANAGEMENT, INC110.67KSep 30, 14+110.67K0.53%
UBS AG2.44KSep 30, 14+2.44K0.01%