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Disclosery

SPOK SPOK HLDGS INC

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Stock (common), issuer CIK 1289945

132 managers (134 13F filers) reported a position in SPOK shares at 2025-12-31, 11,062,224 shares in all. 19 filers opened a position and 28 filers sold out during the quarter.

Managers
132
13F filers
134
New
19
Added
40
Reduced
54
Sold out
28
Shares held by filers
11,062,224

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.1,799,549$23.7M<0.01%-135,71313F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,246,579$16.4M0.03%+74,02913F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,229,078$16.2M<0.01%+74,44713F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP703,826$9.28M<0.01%-15,22413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC598,552$7.9M<0.01%-2,67413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP446,919$5.89M<0.01%-10,50913F-HRTimelineGroup
HighTower Advisors, LLC382,375$5.04M0.01%-25,63613F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC362,471$4.78M<0.01%-33,42913F-HR/ATimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC322,043$4.25M0.01%-106,01713F-HRTimelineGroup
CSM Advisors, LLC262,945$3.47M0.09%-71,40013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP217,094$2.86M<0.01%-23,89213F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp212,816$2.81M<0.01%+16,90513F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…196,865$2.6M0.01%-61,41913F-HRTimeline
Qube Research & Technologies Ltd178,092$2.35M<0.01%+16,11713F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY177,693$2.34M<0.01%+33,63013F-HR/ATimelineGroup
Trexquant Investment LP170,653$2.25M0.02%+81,78413F-HRTimeline
Uniplan Investment Counsel, Inc.160,997$2.12M0.21%-24513F-HR/ATimeline
FMR LLCin group FMR LLC126,982$1.67M<0.01%+107,15313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC125,808$1.66M<0.01%+97,51513F-HRTimelineGroup
North Star Investment Management Corp.122,000$1.61M0.1%013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC118,967$1.57M0.01%+54,80313F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC102,021$1.41M<0.01%+36,33613F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding104,659$1.38M-132,372Timeline
PANAGORA ASSET MANAGEMENT INC93,085$1.23M<0.01%+31,85913F-HRTimeline
Quantinno Capital Management LP92,726$1.22M<0.01%+81,94113F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO91,823$1.21M<0.01%-22,71013F-HRTimelineGroup
Nuveen, LLCin group TIAA72,818$960K<0.01%013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.70,628$932K<0.01%+30,08613F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP65,119$859K<0.01%+1,60013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co60,989$804K<0.01%-11413F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC60,331$797K<0.01%+6,26213F-HR/ATimelineGroup
UBS Group AGgroup of 2 filers holding57,093$753K-9,711Timeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC49,692$655K<0.01%+26,33513F-HRTimelineGroup
Campbell & CO Investment Adviser LLC49,038$647K0.03%+19,50413F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC44,520$587K<0.01%+2,31313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC43,683$576K<0.01%+27613F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP40,028$528K0.05%+13,08013F-HRTimeline
Keebeck Wealth Management40,000$528K0.06%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC37,037$489K<0.01%+14,14913F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/36,487$481K<0.01%-22,92913F-HRTimelineGroup
Engineers Gate Manager LP36,356$480K0.01%+3,10413F-HRTimeline
RHUMBLINE ADVISERS31,534$416K<0.01%-8,42913F-HRTimeline
Invesco Ltd.in group Invesco Ltd.30,930$408K<0.01%-1,85413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN29,634$391K<0.01%+6,74513F-HRTimelineGroup
Man Group plcin group Man Group plc26,439$349K<0.01%+1,06513F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.24,160$319K<0.01%+3,50013F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P23,694$313K0.01%-9,18213F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…22,698$299K<0.01%-9,01613F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC22,231$293K0.01%new13F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC21,481$283K<0.01%new13F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC20,009$264K<0.01%+91213F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…19,185$253K<0.01%new13F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.18,846$249K0.01%-31,09213F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.18,725$247K<0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC16,366$216K<0.01%-26,91413F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC16,112$213K<0.01%new13F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD15,200$200K<0.01%new13F-HRTimeline
Significant Wealth Partners LLC14,798$195K0.22%-11,17113F-HRTimeline
Virtus Investment Advisers, LLCgroup of 2 filers holding14,663$193K-1,553Timeline
Hillsdale Investment Management Inc.14,100$186K0.01%-2,40013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC13,764$182K<0.01%-26,33613F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP13,532$178K0.01%+75413F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\13,154$174K<0.01%-23813F-HRTimelineGroup
Grantham, Mayo, Van Otterloo & Co. LLC12,307$162K<0.01%013F-HRTimeline
Cambria Investment Management, L.P.12,154$160K0.01%new13F-HRTimeline
ALGERT GLOBAL LLC12,080$159K<0.01%+1,08013F-HR/ATimeline
CARLSON FINANCIAL, INC.11,233$148K0.09%13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD11,100$146K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…11,051$146K<0.01%-64513F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/10,744$142K<0.01%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…10,673$141K<0.01%013F-HRTimeline
OXFORD ASSET MANAGEMENT LLP10,352$137K0.05%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…9,445$125K<0.01%-10813F-HRTimelineGroup
AlphaQuest LLC9,168$121K0.01%+21713F-HRTimeline
Truvestments Capital LLC8,828$116K0.02%-2,92313F-HRTimeline
CITIGROUP INCin group CITIGROUP INC7,032$92.8K<0.01%+15613F-HRTimelineGroup
Versant Capital Management, Inc6,650$87.7K0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…6,597$87K<0.01%+39413F-HRTimeline
New Age Alpha Advisors, LLC5,855$77.2K<0.01%-71513F-HRTimeline
Aquatic Capital Management LLC4,966$65.5K<0.01%new13F-HRTimeline
Triumph Capital Management4,801$63.3K0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS4,686$61.8K<0.01%-13,71513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc3,954$52.2K<0.01%013F-HRTimelineGroup
State of Wyoming3,846$50.7K0.01%-19,52513F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…3,738$49.3K<0.01%-81313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA3,100$40K<0.01%+2,00413F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,702$35.6K<0.01%+1,60713F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co2,465$33K<0.01%+1,01313F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,080$27.4K<0.01%013F-HRTimelineGroup
Larson Financial Group LLC2,000$26.4K<0.01%013F-HRTimeline
GAMMA Investing LLC1,839$24.3K<0.01%+1,20713F-HRTimeline
SBI Securities Co., Ltd.1,747$23K<0.01%-56913F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC1,738$22.9K<0.01%new13F-HRTimelineGroup
McIlrath & Eck, LLC1,451$19.1K<0.01%-71513F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,252$16.5K<0.01%-1713F-HRTimeline
Sterling Capital Management LLC1,174$15.5K<0.01%-23213F-HRTimeline
CWM, LLCin group CWM, LLC857$11K<0.01%-2,45313F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC792$10.4K<0.01%+74613F-HRTimeline
NewEdge Advisors, LLC643$8.48K<0.01%+19413F-HRTimeline
State of Alaska, Department of Revenue653$8K<0.01%013F-HRTimeline
AMALGAMATED BANK640$8K<0.01%+4013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…550$7.25K<0.01%new13F-HR/ATimelineGroup
Covestor Ltd486$7K<0.01%+2813F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND450$5.94K<0.01%-7,00013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.350$4.62K<0.01%-2,70613F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP313$4.13K<0.01%-17013F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.266$3.51K<0.01%013F-HRTimelineGroup
Parallel Advisors, LLC258$3.4K<0.01%-1,53813F-HRTimeline
Farther Finance Advisors, LLC209$2.76K<0.01%-8713F-HRTimeline
Geneos Wealth Management Inc.200$2.64K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.120$1.58K<0.01%-33513F-HRTimeline
Cornerstone Financial Management LLC105$1.39K<0.01%13F-HR/ATimeline
Steward Partners Investment Advisory, L…100$1.32K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…76$1K<0.01%-31013F-HRTimelineGroup
Capital Advisors, Ltd. LLC65$1K<0.01%013F-HRTimeline
SIMPLEX TRADING, LLC70$923<0.01%-41813F-HRTimeline
TD Waterhouse Canada Inc.68$898<0.01%013F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…61$805<0.01%new13F-HRTimeline
SageView Advisory Group, LLC60$792<0.01%new13F-HRTimeline
Godfrey Financial Associates, Inc.50$660<0.01%13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…48$633<0.01%-8513F-HRTimelineGroup
True Wealth Design, LLC45$594<0.01%new13F-HRTimeline
Private Wealth Management Group, LLC34$449<0.01%013F-HRTimeline
KAYNE ANDERSON RUDNICK INVESTMENT MANAG…30$396<0.01%013F-HRTimeline
IFP Advisors, Inc28$369<0.01%-18913F-HRTimeline
QUADRANT CAPITAL GROUP LLC27$357<0.01%-1,26913F-HRTimeline
MAI Capital Management24$317<0.01%new13F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…16$211<0.01%013F-HRTimelineGroup
Arax Advisory Partners16$211<0.01%-97513F-HRTimeline
Allworth Financial LP9$119<0.01%-18413F-HRTimeline
Essential Partners LLC3$40<0.01%-7213F-HRTimeline
ROTHSCHILD INVESTMENT LLC2$26<0.01%-3813F-HRTimeline