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Disclosery

SPOK SPOK HLDGS INC

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Stock (common), issuer CIK 1289945

135 managers (139 13F filers) reported a position in SPOK shares at 2026-03-31, 10,489,654 shares in all. 21 filers opened a position and 19 filers sold out during the quarter.

Managers
135
13F filers
139
New
21
Added
44
Reduced
53
Sold out
19
Shares held by filers
10,489,654

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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.1,676,227$18.3M<0.01%-123,32213F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding1,262,793$13.8MnewTimeline
RENAISSANCE TECHNOLOGIES LLC1,261,579$13.8M0.02%+15,00013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP715,869$7.8M<0.01%+12,04313F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC545,718$5.95M<0.01%-52,83413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP461,790$5.03M<0.01%+14,87113F-HRTimelineGroup
HighTower Advisors, LLC381,815$4.16M<0.01%-56013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC219,581$2.39M<0.01%-142,89013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp217,803$2.37M<0.01%+4,98713F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP216,543$2.36M<0.01%-55113F-HRTimelineGroup
CSM Advisors, LLC213,130$2.32M0.06%-49,81513F-HRTimeline
Uniplan Investment Counsel, Inc.209,602$2.28M0.23%+48,60513F-HRTimeline
Qube Research & Technologies Ltd172,057$1.88M<0.01%-6,03513F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY159,826$1.74M<0.01%-17,86713F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…144,851$1.58M<0.01%-52,01413F-HRTimeline
Trexquant Investment LP128,856$1.4M0.01%-41,79713F-HRTimeline
North Star Investment Management Corp.122,000$1.33M0.08%013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC116,810$1.27M0.01%-2,15713F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP112,789$1.23M<0.01%new13F-HRTimelineGroup
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…104,723$1.14M0.01%new13F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.89,627$977K<0.01%+70,90213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.89,451$975K<0.01%+18,82313F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC86,524$943K<0.01%+72,76013F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP85,824$935K0.06%+45,79613F-HRTimeline
PANAGORA ASSET MANAGEMENT INC78,295$853K<0.01%-14,79013F-HRTimeline
FIDELIS CAPITAL PARTNERS, LLC75,001$818K0.06%new13F-HRTimeline
Nuveen, LLCin group TIAA73,336$799K<0.01%+51813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO69,693$783K<0.01%-22,13013F-HR/ATimelineGroup
Numerai GP LLC69,016$752K0.08%new13F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP65,498$714K<0.01%+37913F-HRTimelineGroup
Engineers Gate Manager LP64,068$698K0.01%+27,71213F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co56,035$611K<0.01%-4,95413F-HRTimelineGroup
Campbell & CO Investment Adviser LLC50,869$554K0.03%+1,83113F-HRTimeline
Keebeck Wealth Management50,000$545K0.06%+10,00013F-HRTimeline
Man Group plcin group Man Group plc48,325$527K<0.01%+21,88613F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC43,368$473K<0.01%-31513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC43,132$470K<0.01%+26,76613F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC42,816$467K<0.01%+5,77913F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC41,499$458K<0.01%-18,83213F-HRTimelineGroup
Dynamic Technology Lab Private Ltd37,544$409K0.07%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC37,155$405K<0.01%-88,65313F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.28,160$371K<0.01%+4,00013F-HRTimeline
RHUMBLINE ADVISERS31,194$340K<0.01%-34013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.30,475$332K<0.01%-45513F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding29,115$317K-27,978Timeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC26,600$290K0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/26,528$289K<0.01%-9,95913F-HRTimelineGroup
Quantinno Capital Management LP26,150$285K<0.01%-66,57613F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P23,025$251K0.01%-66913F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD20,300$221K<0.01%+9,20013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP19,900$217K<0.01%-42,68713F-HRTimelineGroup
Cambria Investment Management, L.P.19,744$215K0.01%+7,59013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN18,991$207K<0.01%-10,64313F-HR/ATimelineGroup
Hennion & Walsh Asset Management, Inc.18,707$204K0.01%-13913F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP18,948$203K0.01%+5,41613F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\17,974$196K<0.01%+4,82013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC17,775$194K<0.01%-31,91713F-HRTimelineGroup
Aquatic Capital Management LLC17,342$189K0.01%+12,37613F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC16,881$184K<0.01%-3,12813F-HR/ATimelineGroup
Significant Wealth Partners LLC16,683$182K0.22%+1,88513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC15,320$167K<0.01%-29,20013F-HRTimelineGroup
Empowered Funds, LLC15,203$166K<0.01%new13F-HR/ATimeline
CANADA PENSION PLAN INVESTMENT BOARD15,200$166K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC15,029$164K<0.01%-111,95313F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/14,791$162K<0.01%+4,04713F-HRTimeline
EntryPoint Capital, LLC14,850$162K0.05%new13F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC13,904$152K<0.01%-7,57713F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…13,064$142K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC12,481$136K<0.01%-3,63113F-HRTimelineGroup
Brady Martz Wealth Solutions, LLC12,220$133K0.02%new13F-HRTimeline
Focus Partners Advisor Solutions, LLCin group Focus Partners Wealth12,111$132K<0.01%new13F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd11,367$124K<0.01%new13F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…10,673$116K<0.01%013F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC10,473$114K<0.01%-1,83413F-HRTimeline
AXQ CAPITAL, LP10,283$112K0.01%new13F-HRTimeline
Redhawk Wealth Advisors, Inc.10,134$110K0.01%new13F-HRTimeline
OXFORD ASSET MANAGEMENT LLP10,020$109K0.04%-33213F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
State of Wyoming10,013$109K0.01%+6,16713F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…9,683$106K<0.01%+23813F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…7,851$85.6K<0.01%+4,11313F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…7,125$77.7K0.04%-7,53813F-HRTimelineGroup
Truvestments Capital LLC7,014$76.5K0.01%-1,81413F-HRTimeline
Police & Firemen's Retirement System of…6,597$71.9K<0.01%013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…6,472$70.5K<0.01%-4,57913F-HRTimelineGroup
CWM, LLCin group CWM, LLC5,874$64K<0.01%+5,01713F-HRTimelineGroup
New Age Alpha Advisors, LLC5,855$63.8K<0.01%013F-HRTimeline
Triumph Capital Management5,501$60K0.01%+70013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS4,389$47.8K<0.01%-29713F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,168$45.4K<0.01%+1,46613F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc3,954$43.1K<0.01%013F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…2,744$29.9K<0.01%+2,19413F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co2,565$28K<0.01%+10013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,080$22.7K<0.01%013F-HRTimelineGroup
Larson Financial Group LLC2,000$21.8K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.1,859$20.6K<0.01%+11213F-HRTimeline
CITIGROUP INCin group CITIGROUP INC1,627$17.7K<0.01%-5,40513F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,102$12K<0.01%-15013F-HRTimeline
McIlrath & Eck, LLC1,032$11.2K<0.01%-41913F-HRTimeline
NISA INVESTMENT ADVISORS, LLC792$8.63K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA756$8K<0.01%-2,34413F-HRTimelineGroup
Sterling Capital Management LLC674$7.35K<0.01%-50013F-HRTimeline
State of Alaska, Department of Revenue653$7K<0.01%013F-HRTimeline
Covestor Ltd542$6K<0.01%+5613F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…550$6K<0.01%+47413F-HRTimelineGroup
GAMMA Investing LLC472$5.14K<0.01%-1,36713F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND450$4.91K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.320$3.49K<0.01%+20013F-HRTimeline
Geneos Wealth Management Inc.200$2.18K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.162$1.77K<0.01%-10413F-HR/ATimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP150$1.66K<0.01%-16313F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.150$1.64K<0.01%-20013F-HRTimelineGroup
Farther Finance Advisors, LLC137$1.52K<0.01%-7213F-HRTimeline
Allworth Financial LP129$1.41K<0.01%+12013F-HRTimeline
Steward Partners Investment Advisory, L…100$1.09K<0.01%013F-HRTimeline
Capital Advisors, Ltd. LLC65$1K<0.01%013F-HRTimeline
Versant Capital Management, Inc89$970<0.01%-6,56113F-HRTimeline
MAI Capital Management84$916<0.01%+6013F-HRTimeline
ROTHSCHILD INVESTMENT LLC74$807<0.01%+7213F-HRTimeline
TD Waterhouse Canada Inc.68$749<0.01%013F-HRTimeline
JPL Wealth Management, LLC55$600<0.01%new13F-HR/ATimeline
Essential Partners LLC53$578<0.01%+5013F-HRTimeline
Godfrey Financial Associates, Inc.50$545<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…49$535<0.01%+113F-HR/ATimelineGroup
IFP Advisors, Inc49$534<0.01%+2113F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK40$436<0.01%new13F-HRTimelineGroup
Basecamp Wealth Advisors LLC40$436<0.01%new13F-HRTimeline
Sound Income Strategies, LLC29$322<0.01%new13F-HRTimeline
Arax Advisory Partners27$294<0.01%+1113F-HRTimeline
QUADRANT CAPITAL GROUP LLC20$218<0.01%-713F-HR/ATimeline
SIMPLEX TRADING, LLC19$207<0.01%-5113F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…16$174<0.01%013F-HRTimelineGroup
Wealth Preservation Advisors, LLC13$142<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.10$109<0.01%new13F-HRTimeline
True Wealth Design, LLC7$77<0.01%-3813F-HRTimeline
Sunbelt Securities, Inc.2$22<0.01%new13F-HRTimeline