Spok Holdings, Inc - SPOK

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
BlackRock, Inc. History Reduced 1,799,549 23,736 0.0% 0.0% 1 -135,713 -7.01% Q4 2025 Feb 12, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 1,246,579 16,442 0.03% 0.03% 2 +74,029 6.31% Q4 2025 Feb 12, 2026
VANGUARD GROUP INC History Added to 1,229,078 16,211 0.0% 0.0% 3 +74,447 6.45% Q4 2025 Jan 29, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 703,826 9,283 0.0% 0.0% 4 -15,224 -2.12% Q4 2025 Feb 12, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 598,552 7,896 0.0% 0.0% 5 -2,674 -0.44% Q4 2025 Feb 09, 2026
STATE STREET CORP History Reduced 446,919 5,894 0.0% 0.0% 6 -10,509 -2.3% Q4 2025 Feb 13, 2026
HighTower Advisors, LLC History Reduced 382,375 5,043 0.01% 0.01% 7 -25,636 -6.28% Q4 2025 Feb 06, 2026
GOLDMAN SACHS GROUP INC History Reduced 362,471 4,780 0.0% 0.0% 8 -33,429 -8.44% Q4 2025 Mar 25, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 322,043 4,246 0.01% 0.01% 9 -106,017 -24.77% Q4 2025 Feb 10, 2026
CSM Advisors, LLC History Reduced 262,945 3,471 0.09% 0.16% 10 -71,400 -21.36% Q4 2025 Feb 11, 2026
NORTHERN TRUST CORP History Reduced 217,094 2,863 0.0% 0.0% 11 -23,892 -9.91% Q4 2025 Feb 17, 2026
Bank of New York Mellon Corp History Added to 212,816 2,807 0.0% 0.0% 12 +16,905 8.63% Q4 2025 Feb 10, 2026
Connor, Clark & Lunn Investment Management Ltd. History Reduced 196,865 2,596 0.01% 0.01% 13 -61,419 -23.78% Q4 2025 Feb 10, 2026
Qube Research & Technologies Ltd History Added to 178,092 2,349 0.0% 0.0% 14 +16,117 9.95% Q4 2025 Feb 17, 2026
MORGAN STANLEY History Added to 177,693 2,343 0.0% 0.0% 15 +33,630 23.34% Q4 2025 Feb 13, 2026
Trexquant Investment LP History Added to 170,653 2,250 0.02% 0.02% 16 +81,784 92.03% Q4 2025 Feb 17, 2026
Uniplan Investment Counsel, Inc. History Reduced 160,997 2,123 0.21% 0.27% 17 -245 -0.15% Q4 2025 Feb 17, 2026
FMR LLC History Added to 126,982 1,674 0.0% 0.0% 18 +107,153 540.39% Q4 2025 Feb 17, 2026
MILLENNIUM MANAGEMENT LLC History Added to 125,808 1,659 0.0% 0.0% 19 +97,515 344.66% Q4 2025 Feb 17, 2026
North Star Investment Management Corp. History No change 122,000 1,609 0.1% 0.14% 20 0 0.0% Q4 2025 Jan 30, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC History New 118,967 1,569 0.01% 21 +118,967 New Q4 2025 Feb 13, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History Added to 102,021 1,410 0.0% 0.0% 22 +36,336 55.32% Q4 2025 Feb 11, 2026
PANAGORA ASSET MANAGEMENT INC History Added to 93,085 1,227 0.0% 0.0% 23 +31,859 52.04% Q4 2025 Feb 13, 2026
Quantinno Capital Management LP History Added to 92,726 1,223 0.0% 0.0% 24 +81,941 759.77% Q4 2025 Feb 17, 2026
JPMORGAN CHASE & CO History Reduced 91,823 1,211 0.0% 0.0% 25 -22,710 -19.83% Q4 2025 Feb 11, 2026
CITADEL ADVISORS LLC History Added to 80,492 1,061 0.0% 0.0% 26 +57,135 244.62% Q4 2025 Feb 17, 2026
Nuveen, LLC History No change 72,818 960 0.0% 0.0% 27 0 0.0% Q4 2025 Feb 12, 2026
D. E. Shaw & Co., Inc. History Added to 70,628 931 0.0% 0.0% 28 +30,086 74.21% Q4 2025 Feb 17, 2026
FIRST TRUST ADVISORS LP History Added to 65,119 858 0.0% 0.0% 29 +1,600 2.52% Q4 2025 Feb 13, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 62,587 825 0.0% 0.0% 30 -106,644 -63.02% Q4 2025 Feb 17, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 60,989 804 0.0% 0.0% 31 -114 -0.19% Q4 2025 Feb 13, 2026
HSBC HOLDINGS PLC History Added to 60,331 796 0.0% 0.0% 32 +6,262 11.58% Q4 2025 Mar 20, 2026
UBS Group AG History Reduced 56,955 751 0.0% 0.0% 33 -9,849 -14.74% Q4 2025 Jan 29, 2026
Campbell & CO Investment Adviser LLC History Added to 49,038 646 0.03% 0.04% 34 +19,504 66.04% Q4 2025 Feb 12, 2026
BARCLAYS PLC History Added to 44,520 587 0.0% 0.0% 35 +2,313 5.48% Q4 2025 Feb 13, 2026
AMERICAN CENTURY COMPANIES INC History Added to 43,683 576 0.0% 0.0% 36 +276 0.64% Q4 2025 Feb 13, 2026
TWO SIGMA ADVISERS, LP History Reduced 42,072 554 0.0% 0.0% 37 -25,728 -37.95% Q4 2025 Feb 17, 2026
GSA CAPITAL PARTNERS LLP History Added to 40,028 528 0.05% 0.04% 38 +13,080 48.54% Q4 2025 Feb 06, 2026
Keebeck Wealth Management History No change 40,000 527 0.06% 0.08% 39 0 0.0% Q4 2025 Feb 17, 2026
VICTORY CAPITAL MANAGEMENT INC History Added to 37,037 488 0.0% 0.0% 40 +14,149 61.82% Q4 2025 Feb 13, 2026
BANK OF AMERICA CORP /DE/ History Reduced 36,487 481 0.0% 0.0% 41 -22,929 -38.59% Q4 2025 Feb 17, 2026
Engineers Gate Manager LP History Added to 36,356 479 0.01% 0.01% 42 +3,104 9.33% Q4 2025 Feb 17, 2026
RHUMBLINE ADVISERS History Reduced 31,534 415 0.0% 0.0% 43 -8,429 -21.09% Q4 2025 Feb 13, 2026
Invesco Ltd. History Reduced 30,930 407 0.0% 0.0% 44 -1,854 -5.66% Q4 2025 Feb 19, 2026
WELLS FARGO & COMPANY/MN History Added to 29,634 390 0.0% 0.0% 45 +6,745 29.47% Q4 2025 Feb 13, 2026
Man Group plc History Added to 26,439 348 0.0% 0.0% 46 +1,065 4.2% Q4 2025 Feb 17, 2026
ALLIANCEBERNSTEIN L.P. History Added to 24,160 318 0.0% 0.0% 47 +3,500 16.94% Q4 2025 Feb 17, 2026
MARTINGALE ASSET MANAGEMENT L P History Reduced 23,694 312 0.01% 0.01% 48 -9,182 -27.93% Q4 2025 Feb 13, 2026
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM History Reduced 22,698 299 0.0% 0.0% 49 -9,016 -28.43% Q4 2025 Feb 12, 2026
BOOTHBAY FUND MANAGEMENT, LLC History New 22,231 293 0.0% 50 +22,231 New Q4 2025 Feb 17, 2026
Magnetar Financial LLC History New 21,481 283 0.0% 51 +21,481 New Q4 2025 Feb 17, 2026
AMERIPRISE FINANCIAL INC History Added to 20,009 263 0.0% 0.0% 52 +912 4.78% Q4 2025 Feb 17, 2026
Brevan Howard Capital Management LP History New 19,185 253 0.0% 53 +19,185 New Q4 2025 Feb 17, 2026
Hennion & Walsh Asset Management, Inc. History Reduced 18,846 248 0.01% 0.03% 54 -31,092 -62.26% Q4 2025 Jan 14, 2026
Point72 Asset Management, L.P. History New 18,725 246 0.0% 55 +18,725 New Q4 2025 Feb 17, 2026
AQR CAPITAL MANAGEMENT LLC History Reduced 16,366 215 0.0% 0.0% 56 -26,914 -62.19% Q4 2025 Feb 17, 2026
Squarepoint Ops LLC History New 16,112 212 0.0% 57 +16,112 New Q4 2025 Feb 13, 2026
CANADA PENSION PLAN INVESTMENT BOARD History New 15,200 200 0.0% 58 +15,200 New Q4 2025 Feb 17, 2026
Significant Wealth Partners LLC History Reduced 14,798 195 0.22% 0.22% 59 -11,171 -43.02% Q4 2025 Jan 07, 2026
VIRTUS ADVISERS, LLC History Added to 14,663 193 0.09% 0.06% 60 +8,313 130.91% Q4 2025 Feb 13, 2026
Hillsdale Investment Management Inc. History Reduced 14,100 185 0.01% 0.01% 61 -2,400 -14.55% Q4 2025 Feb 10, 2026
JANE STREET GROUP, LLC History Reduced 13,764 181 0.0% 0.0% 62 -26,336 -65.68% Q4 2025 Feb 12, 2026
OCCUDO QUANTITATIVE STRATEGIES LP History Added to 13,532 178 0.01% 0.03% 63 +754 5.9% Q4 2025 Feb 17, 2026
DEUTSCHE BANK AG\ History Reduced 13,154 173 0.0% 0.0% 64 -238 -1.78% Q4 2025 Feb 11, 2026
Grantham, Mayo, Van Otterloo & Co. LLC History No change 12,307 162 0.0% 0.0% 65 0 0.0% Q4 2025 Feb 17, 2026
Cambria Investment Management, L.P. History New 12,154 160 0.01% 66 +12,154 New Q4 2025 Feb 17, 2026
ALGERT GLOBAL LLC History Added to 12,080 159 0.0% 0.0% 67 +1,080 9.82% Q4 2025 Feb 17, 2026
STATE OF WISCONSIN INVESTMENT BOARD History New 11,100 146 0.0% 68 +11,100 New Q4 2025 Feb 17, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 11,100 146 0.0% 0.0% 69 -3,900 -26.0% Q4 2025 Feb 17, 2026
MetLife Investment Management, LLC History Reduced 11,051 145 0.0% 0.0% 70 -645 -5.51% Q4 2025 Feb 12, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 10,744 142 0.0% 0.0% 71 0 0.0% Q4 2025 Feb 17, 2026
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO History No change 10,673 140 0.0% 0.0% 72 0 0.0% Q4 2025 Feb 17, 2026
OXFORD ASSET MANAGEMENT LLP History New 10,352 136 0.06% 73 +10,352 New Q4 2025 Feb 17, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Reduced 9,445 124 0.0% 0.0% 74 -108 -1.13% Q4 2025 Feb 17, 2026
AlphaQuest LLC History Added to 9,168 120 0.01% 0.01% 75 +217 2.42% Q4 2025 Feb 09, 2026
Truvestments Capital LLC History Reduced 8,828 116 0.02% 0.04% 76 -2,923 -24.87% Q4 2025 Feb 13, 2026
CITIGROUP INC History Added to 7,032 92 0.0% 0.0% 77 +156 2.27% Q4 2025 Feb 13, 2026
Versant Capital Management, Inc History New 6,650 87 0.01% 78 +6,650 New Q4 2025 Jan 08, 2026
Police & Firemen's Retirement System of New Jersey History Added to 6,597 87 0.0% 0.0% 79 +394 6.35% Q4 2025 Feb 13, 2026
New Age Alpha Advisors, LLC History Reduced 5,855 77 0.0% 0.0% 80 -715 -10.88% Q4 2025 Feb 09, 2026
Aquatic Capital Management LLC History New 4,966 65 0.0% 81 +4,966 New Q4 2025 Feb 17, 2026
Triumph Capital Management History New 4,801 63 0.01% 82 +4,801 New Q4 2025 Feb 12, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 4,686 61 0.0% 0.0% 83 -13,715 -74.53% Q4 2025 Feb 10, 2026
Legal & General Group Plc History No change 3,954 52 0.0% 0.0% 84 0 0.0% Q4 2025 Feb 09, 2026
State of Wyoming History Reduced 3,846 50 0.01% 0.05% 85 -19,525 -83.54% Q4 2025 Feb 11, 2026
Russell Investments Group, Ltd. History Reduced 3,738 49 0.0% 0.0% 86 -813 -17.86% Q4 2025 Feb 17, 2026
ROYAL BANK OF CANADA History New 3,100 40 0.0% 87 +3,100 New Q4 2025 Feb 17, 2026
Tower Research Capital LLC (TRC) History Added to 2,702 35 0.0% 0.0% 88 +1,607 146.76% Q4 2025 Feb 17, 2026
CANADA LIFE ASSURANCE Co History Added to 2,465 33 0.0% 0.0% 89 +1,013 69.77% Q4 2025 Feb 13, 2026
Ameritas Investment Partners, Inc. History No change 2,080 27 0.0% 0.0% 90 0 0.0% Q4 2025 Feb 11, 2026
Larson Financial Group LLC History No change 2,000 26 0.0% 0.0% 91 0 0.0% Q4 2025 Feb 06, 2026
GAMMA Investing LLC History Added to 1,839 24 0.0% 0.0% 92 +1,207 190.98% Q4 2025 Jan 05, 2026
SBI Securities Co., Ltd. History Reduced 1,747 23 0.0% 0.0% 93 -569 -24.57% Q4 2025 Feb 03, 2026
Kestra Advisory Services, LLC History New 1,738 22 0.0% 94 +1,738 New Q4 2025 Feb 13, 2026
McIlrath & Eck, LLC History Reduced 1,451 19 0.0% 0.0% 95 -715 -33.01% Q4 2025 Feb 03, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 1,252 16 0.0% 0.0% 96 -17 -1.34% Q4 2025 Feb 17, 2026
Sterling Capital Management LLC History Reduced 1,174 15 0.0% 0.0% 97 -232 -16.5% Q4 2025 Feb 13, 2026
CWM, LLC History Reduced 857 11 0.0% 0.0% 98 -2,453 -74.11% Q4 2025 Jan 26, 2026
NISA INVESTMENT ADVISORS, LLC History Added to 792 10 0.0% 99 +746 1621.74% Q4 2025 Jan 15, 2026
NewEdge Advisors, LLC History Added to 643 8 0.0% 0.0% 102 +194 43.21% Q4 2025 Feb 18, 2026
AMALGAMATED BANK History Added to 640 8 0.0% 0.0% 100 +40 6.67% Q4 2025 Feb 05, 2026
State of Alaska, Department of Revenue History No change 653 8 0.0% 0.0% 101 0 0.0% Q4 2025 Jan 23, 2026
Rockefeller Capital Management L.P. History New 550 7 0.0% 103 +550 New Q4 2025 Mar 16, 2026
Covestor Ltd History Added to 486 7 0.0% 0.0% 104 +28 6.11% Q4 2025 Feb 06, 2026
NEW YORK STATE COMMON RETIREMENT FUND History Reduced 450 5 0.0% 0.0% 105 -7,000 -93.96% Q4 2025 Feb 12, 2026
OSAIC HOLDINGS, INC. History Reduced 350 4 0.0% 0.0% 107 -2,706 -88.55% Q4 2025 Feb 17, 2026
JONES FINANCIAL COMPANIES LLLP History Reduced 313 4 0.0% 0.0% 106 -170 -35.2% Q4 2025 Feb 17, 2026
Parallel Advisors, LLC History Reduced 258 3 0.0% 0.0% 108 -1,538 -85.63% Q4 2025 Feb 11, 2026
Optiver Holding B.V. History No change 266 3 0.0% 0.0% 109 0 0.0% Q4 2025 Feb 17, 2026
Farther Finance Advisors, LLC History Reduced 209 2 0.0% 0.0% 111 -87 -29.39% Q4 2025 Jan 23, 2026
Geneos Wealth Management Inc. History No change 200 2 0.0% 0.0% 110 0 0.0% Q4 2025 Jan 28, 2026
HARBOUR INVESTMENTS, INC. History Reduced 120 1 0.0% 0.0% 113 -335 -73.63% Q4 2025 Feb 09, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 76 1 0.0% 0.0% 112 -310 -80.31% Q4 2025 Feb 06, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History New 138 1 0.0% 114 +138 New Q4 2025 Feb 13, 2026
Cornerstone Financial Management LLC History New 105 1 0.0% 117 +105 New Q4 2025 Feb 13, 2026
Capital Advisors, Ltd. LLC History No change 65 1 0.0% 0.0% 115 0 0.0% Q4 2025 Jan 21, 2026
Steward Partners Investment Advisory, LLC History No change 100 1 0.0% 0.0% 116 0 0.0% Q4 2025 Feb 12, 2026
LAZARD ASSET MANAGEMENT LLC History Closed out 0 0 0.0% -80,885 -100.0% Q3 2025 Nov 14, 2025
Allspring Global Investments Holdings, LLC History Closed out 0 0 0.0% -74,403 -100.0% Q3 2025 Oct 20, 2025
Inspire Investing, LLC History Closed out 0 0 0.1% -60,695 -100.0% Q3 2025 Oct 15, 2025
Walleye Capital LLC History Closed out 0 0 0.0% -35,856 -100.0% Q3 2025 Nov 14, 2025
PRUDENTIAL FINANCIAL INC History Closed out 0 0 0.0% -35,540 -100.0% Q3 2025 Nov 13, 2025
MARSHALL WACE, LLP History Closed out 0 0 0.0% -34,084 -100.0% Q3 2025 Nov 13, 2025
STIFEL FINANCIAL CORP History Closed out 0 0 0.0% -23,917 -100.0% Q3 2025 Nov 12, 2025
Petrus Trust Company, LTA History Closed out 0 0 0.04% -21,667 -100.0% Q3 2025 Nov 14, 2025
&PARTNERS History Closed out 0 0 0.0% -21,600 -100.0% Q3 2025 Nov 14, 2025
Creative Planning History Closed out 0 0 0.0% -20,785 -100.0% Q3 2025 Nov 14, 2025
R Squared Ltd History Closed out 0 0 0.14% -19,227 -100.0% Q3 2025 Nov 12, 2025
Atom Investors LP History Closed out 0 0 0.02% -17,827 -100.0% Q3 2025 Nov 14, 2025
Cerity Partners LLC History Closed out 0 0 0.0% -13,454 -100.0% Q3 2025 Oct 22, 2025
RAYMOND JAMES FINANCIAL INC History Closed out 0 0 0.0% -10,843 -100.0% Q3 2025 Nov 14, 2025
Jump Financial, LLC History Closed out 0 0 0.0% -10,700 -100.0% Q3 2025 Nov 13, 2025
Longboard Asset Management, LP History Closed out 0 0 0.29% -10,350 -100.0% Q3 2025 Oct 22, 2025
Virtus Investment Advisers, LLC History Closed out 0 0 0.05% -9,866 -100.0% Q3 2025 Nov 14, 2025
GROUP ONE TRADING LLC History Closed out 0 0 0.0% -2,725 -100.0% Q3 2025 Nov 12, 2025
HAGER INVESTMENT MANAGEMENT SERVICES, LLC History Closed out 0 0 0.02% -1,998 -100.0% Q3 2025 Nov 12, 2025
SIGNATUREFD, LLC History Closed out 0 0 0.0% -1,605 -100.0% Q3 2025 Oct 21, 2025
RMG Wealth Management LLC History Closed out 0 0 0.0% -1,304 -100.0% Q3 2025 Oct 30, 2025
QUADRANT CAPITAL GROUP LLC History Reduced 27 0 0.0% -1,269 -97.92% Q4 2025 Feb 13, 2026
Arax Advisory Partners History Reduced 16 0 0.0% -975 -98.39% Q4 2025 Feb 13, 2026
Mechanics Financial Corp History Closed out 0 0 0.01% -813 -100.0% Q3 2025 Nov 06, 2025
SIMPLEX TRADING, LLC History Reduced 70 0 0.0% -418 -85.66% Q4 2025 Feb 11, 2026
Clearstead Advisors, LLC History Closed out 0 0 0.0% -249 -100.0% Q3 2025 Nov 10, 2025
IFP Advisors, Inc History Reduced 28 0 0.0% -189 -87.1% Q4 2025 Feb 06, 2026
EverSource Wealth Advisors, LLC History Reduced 48 0 0.0% -85 -63.91% Q4 2025 Feb 06, 2026
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ History New 61 0 +61 New Q4 2025 Feb 11, 2026
SageView Advisory Group, LLC History New 60 0 +60 New Q4 2025 Feb 17, 2026
JPL Wealth Management, LLC History Closed out 0 0 -55 -100.0% Q3 2025 Nov 14, 2025
Godfrey Financial Associates, Inc. History New 50 0 +50 New Q4 2025 Feb 10, 2026
True Wealth Design, LLC History New 45 0 +45 New Q4 2025 Jan 08, 2026
ROTHSCHILD INVESTMENT LLC History Reduced 2 0 -38 -95.0% Q4 2025 Feb 10, 2026
US BANCORP \DE\ History Closed out 0 0 -29 -100.0% Q3 2025 Nov 12, 2025
MAI Capital Management History New 24 0 +24 New Q4 2025 Feb 13, 2026
MassMutual Private Wealth & Trust, FSB History Closed out 0 0 -16 -100.0% Q3 2025 Oct 22, 2025
Allworth Financial LP History New 9 0 +9 New Q4 2025 Feb 05, 2026
FIFTH THIRD BANCORP History No change 16 0 0 0.0% Q4 2025 Feb 02, 2026
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC History No change 30 0 0 0.0% Q4 2025 Feb 13, 2026
TD Waterhouse Canada Inc. History No change 68 0 0.0% 0 0.0% Q4 2025 Jan 27, 2026
Private Wealth Management Group, LLC History No change 34 0 0 0.0% Q4 2025 Jan 23, 2026