SPOK — Institutional owners (13F)
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
| Institution | Value | Shares | % of tracked 13F | Type |
|---|---|---|---|---|
| BlackRock, Inc. | $17,604,803 | 1,719,219 | 13.35% | Shares |
| VANGUARD GROUP INC | $16,211,540 | 1,229,078 | 12.29% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $11,761,449 | 1,148,579 | 8.92% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $8,932,956 | 872,359 | 6.77% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $7,348,899 | 717,616 | 5.57% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $6,102,783 | 595,842 | 4.63% | Shares |
| Foundry Partners, LLC | $5,917,167 | 359,925 | 4.49% | Shares |
| STATE STREET CORP | $4,829,020 | 471,584 | 3.66% | Shares |
| HighTower Advisors, LLC | $3,480,491 | 339,892 | 2.64% | Shares |
| Qube Research & Technologies Ltd | $2,945,198 | 287,617 | 2.23% | Shares |
| GOLDMAN SACHS GROUP INC | $2,887,476 | 281,980 | 2.19% | Shares |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $2,798,367 | 273,278 | 2.12% | Shares |
| Bank of New York Mellon Corp | $2,397,305 | 234,112 | 1.82% | Shares |
| NORTHERN TRUST CORP | $2,282,445 | 222,895 | 1.73% | Shares |
| Uniplan Investment Counsel, Inc. | $2,209,424 | 215,764 | 1.67% | Shares |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | $1,994,906 | 194,815 | 1.51% | Shares |
| CITADEL ADVISORS LLC | $1,878,497 | 183,447 | 1.42% | Shares |
| MORGAN STANLEY | $1,705,736 | 166,575 | 1.29% | Shares |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $1,641,595 | 160,312 | 1.24% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $1,401,836 | 136,898 | 1.06% | Shares |
| D. E. Shaw & Co., Inc. | $1,332,870 | 130,163 | 1.01% | Shares |
| Connor, Clark & Lunn Investment Management Ltd. | $1,100,544 | 107,475 | 0.83% | Shares |
| PANAGORA ASSET MANAGEMENT INC | $952,627 | 93,030 | 0.72% | Shares |
| North Star Investment Management Corp. | $921,600 | 90,000 | 0.70% | Shares |
| FMR LLC | $913,005 | 89,161 | 0.69% | Shares |
| WOLVERINE TRADING, LLC | $870,237 | 50,100 | 0.66% | Put option |
| FIDELIS CAPITAL PARTNERS, LLC | $768,737 | 75,072 | 0.58% | Shares |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $715,336 | 69,857 | 0.54% | Shares |
| FIRST TRUST ADVISORS LP | $709,847 | 69,321 | 0.54% | Shares |
| JPMORGAN CHASE & CO | $686,074 | 65,653 | 0.52% | Shares |
| Quantinno Capital Management LP | $651,270 | 63,600 | 0.49% | Shares |
| Caption Management, LLC | $614,400 | 60,000 | 0.47% | Call option |
| Man Group plc | $590,971 | 57,712 | 0.45% | Shares |
| VICTORY CAPITAL MANAGEMENT INC | $588,902 | 57,510 | 0.45% | Shares |
| Cubist Systematic Strategies, LLC | $586,210 | 33,983 | 0.44% | Shares |
| TWO SIGMA ADVISERS, LP | $554,930 | 42,072 | 0.42% | Shares |
| Keebeck Wealth Management | $512,000 | 50,000 | 0.39% | Shares |
| Nuveen, LLC | $505,938 | 49,408 | 0.38% | Shares |
| Campbell & CO Investment Adviser LLC | $492,370 | 48,083 | 0.37% | Shares |
| Numerai GP LLC | $473,324 | 46,223 | 0.36% | Shares |
| AQR CAPITAL MANAGEMENT LLC | $460,669 | 44,987 | 0.35% | Shares |
| Atom Investors LP | $453,519 | 44,289 | 0.34% | Shares |
| AMERICAN CENTURY COMPANIES INC | $435,098 | 42,490 | 0.33% | Shares |
| Trexquant Investment LP | $401,244 | 39,184 | 0.30% | Shares |
| AMERIPRISE FINANCIAL INC | $399,503 | 39,014 | 0.30% | Shares |
| Russell Investments Group, Ltd. | $397,316 | 38,801 | 0.30% | Shares |
| Invesco Ltd. | $356,270 | 34,792 | 0.27% | Shares |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $354,304 | 34,600 | 0.27% | Shares |
| RHUMBLINE ADVISERS | $322,911 | 31,535 | 0.24% | Shares |
| UBS Group AG | $313,068 | 30,573 | 0.24% | Shares |
| ALLIANCEBERNSTEIN L.P. | $303,674 | 27,860 | 0.23% | Shares |
| EntryPoint Capital, LLC | $295,444 | 28,852 | 0.22% | Shares |
| WELLS FARGO & COMPANY/MN | $290,226 | 28,343 | 0.22% | Shares |
| GUGGENHEIM CAPITAL LLC | $276,746 | 27,026 | 0.21% | Shares |
| BANK OF AMERICA CORP /DE/ | $267,202 | 26,094 | 0.20% | Shares |
| MARTINGALE ASSET MANAGEMENT L P | $267,172 | 26,091 | 0.20% | Shares |
| Cambria Investment Management, L.P. | $262,001 | 25,586 | 0.20% | Shares |
| Schonfeld Strategic Advisors LLC | $250,366 | 24,450 | 0.19% | Shares |
| TWO SIGMA INVESTMENTS, LP | $237,056 | 23,150 | 0.18% | Shares |
| MILLENNIUM MANAGEMENT LLC | $229,171 | 22,380 | 0.17% | Shares |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $212,869 | 20,788 | 0.16% | Shares |
| DEUTSCHE BANK AG\ | $205,568 | 20,075 | 0.16% | Shares |
| Redhawk Wealth Advisors, Inc. | $196,146 | 19,155 | 0.15% | Shares |
| Point72 Asset Management, L.P. | $195,635 | 19,105 | 0.15% | Shares |
| Significant Wealth Partners LLC | $185,805 | 18,145 | 0.14% | Shares |
| MERCER GLOBAL ADVISORS INC /ADV | $156,980 | 15,330 | 0.12% | Shares |
| OCCUDO QUANTITATIVE STRATEGIES LP | $155,802 | 15,215 | 0.12% | Shares |
| CANADA PENSION PLAN INVESTMENT BOARD | $155,648 | 15,200 | 0.12% | Shares |
| JANE STREET GROUP, LLC | $155,576 | 15,193 | 0.12% | Shares |
| Empowered Funds, LLC | $154,819 | 15,119 | 0.12% | Shares |
| Brevan Howard Capital Management LP | $143,462 | 14,010 | 0.11% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $142,612 | 13,927 | 0.11% | Shares |
| Cetera Investment Advisers | $142,323 | 13,899 | 0.11% | Shares |
| Brady Martz Wealth Solutions, LLC | $133,198 | 12,220 | 0.10% | Shares |
| Amundi | $125,358 | 12,242 | 0.10% | Shares |
| HSBC HOLDINGS PLC | $124,518 | 12,054 | 0.09% | Shares |
| Vanguard Personalized Indexing Management, LLC | $124,211 | 12,130 | 0.09% | Shares |
| AlphaQuest LLC | $120,926 | 9,168 | 0.09% | Shares |
| MetLife Investment Management, LLC | $115,466 | 11,276 | 0.09% | Shares |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $111,667 | 10,905 | 0.08% | Shares |
| CITIGROUP INC | $108,564 | 10,602 | 0.08% | Shares |
| AXQ CAPITAL, LP | $107,909 | 10,538 | 0.08% | Shares |
| Grantham, Mayo, Van Otterloo & Co. LLC | $107,244 | 10,473 | 0.08% | Shares |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $98,806 | 9,649 | 0.07% | Shares |
| Vanguard Global Advisers, LLC | $92,027 | 8,987 | 0.07% | Shares |
| VIRTUS ADVISERS, LLC | $70,042 | 6,840 | 0.05% | Shares |
| Truvestments Capital LLC | $69,586 | 6,795 | 0.05% | Shares |
| Police & Firemen's Retirement System of New Jersey | $67,553 | 6,597 | 0.05% | Shares |
| BARCLAYS PLC | $66,652 | 6,509 | 0.05% | Shares |
| CWM, LLC | $64,027 | 5,874 | 0.05% | Shares |
| OSAIC HOLDINGS, INC. | $61,862 | 6,042 | 0.05% | Shares |
| New Age Alpha Advisors, LLC | $59,955 | 5,855 | 0.05% | Shares |
| Triumph Capital Management | $50,903 | 4,971 | 0.04% | Shares |
| PNC Financial Services Group, Inc. | $40,182 | 3,924 | 0.03% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $35,543 | 3,471 | 0.03% | Shares |
| SBI Securities Co., Ltd. | $28,191 | 2,753 | 0.02% | Shares |
| Rockefeller Capital Management L.P. | $28,099 | 2,744 | 0.02% | Shares |
| ROYAL BANK OF CANADA | $26,000 | 2,549 | 0.02% | Shares |
| Tower Research Capital LLC (TRC) | $24,525 | 2,395 | 0.02% | Shares |
| IFG Advisory, LLC | $22,845 | 2,231 | 0.02% | Shares |
| GAMMA Investing LLC | $22,016 | 2,150 | 0.02% | Shares |
| Ameritas Investment Partners, Inc. | $21,299 | 2,080 | 0.02% | Shares |
| Larson Financial Group LLC | $20,480 | 2,000 | 0.02% | Shares |
| Legal & General Group Plc | $18,954 | 1,851 | 0.01% | Shares |
| NISA INVESTMENT ADVISORS, LLC | $15,452 | 1,509 | 0.01% | Shares |
| Versant Capital Management, Inc | $14,833 | 1,414 | 0.01% | Shares |
| McIlrath & Eck, LLC | $11,249 | 1,032 | 0.01% | Shares |
| Arax Advisory Partners | $8,140 | 795 | 0.01% | Shares |
| NEW YORK STATE COMMON RETIREMENT FUND | $4,608 | 450 | 0.00% | Shares |
| Point72 Asia (Singapore) Pte. Ltd. | $4,398 | 255 | 0.00% | Shares |
| Sterling Capital Management LLC | $4,321 | 422 | 0.00% | Shares |
| IFP Advisors, Inc | $4,045 | 395 | 0.00% | Shares |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $2,929 | 286 | 0.00% | Shares |
| Physician Wealth Advisors, Inc. | $2,345 | 229 | 0.00% | Shares |
| Cornerstone Planning Group LLC | $2,311 | 217 | 0.00% | Shares |
| CSM Advisors, LLC | $2,179 | 212,910 | 0.00% | Shares |
| JONES FINANCIAL COMPANIES LLLP | $2,151 | 202 | 0.00% | Shares |
| HARBOUR INVESTMENTS, INC. | $2,048 | 200 | 0.00% | Shares |
| Geneos Wealth Management Inc. | $2,048 | 200 | 0.00% | Shares |
| GSA CAPITAL PARTNERS LLP | $1,537 | 150,124 | 0.00% | Shares |
| Allworth Financial LP | $1,065 | 104 | 0.00% | Shares |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1,057 | 97 | 0.00% | Shares |
| EverSource Wealth Advisors, LLC | $768 | 75 | 0.00% | Shares |
| SJS Investment Consulting Inc. | $646 | 63 | 0.00% | Shares |
| Point72 (DIFC) Ltd | $601 | 35 | 0.00% | Shares |
| Bogart Wealth, LLC | $492 | 48 | 0.00% | Shares |
| Optiver Holding B.V. | $430 | 42 | 0.00% | Shares |
| Farther Finance Advisors, LLC | $401 | 39 | 0.00% | Shares |
| TD PRIVATE CLIENT WEALTH LLC | $399 | 39 | 0.00% | Shares |
| ROTHSCHILD INVESTMENT LLC | $307 | 30 | 0.00% | Shares |
| PRICE T ROWE ASSOCIATES INC /MD/ | $152 | 14,791 | 0.00% | Shares |
| True Wealth Design, LLC | $144 | 14 | 0.00% | Shares |
| Caitong International Asset Management Co., Ltd | $123 | 12 | 0.00% | Shares |
| FIFTH THIRD BANCORP | $82 | 8 | 0.00% | Shares |
| Essential Partners LLC | $51 | 5 | 0.00% | Shares |
| CANADA LIFE ASSURANCE Co | $24 | 2,386 | 0.00% | Shares |
| Sunbelt Securities, Inc. | $22 | 2 | 0.00% | Shares |
| Clearstead Advisors, LLC | $11 | 1 | 0.00% | Shares |
| Fortitude Family Office, LLC | $10 | 1 | 0.00% | Shares |
| Covestor Ltd | $10 | 973 | 0.00% | Shares |
| Wealth Enhancement Trust Services, Inc. | $10 | 1 | 0.00% | Shares |
| State of Alaska, Department of Revenue | $6 | 653 | 0.00% | Shares |
| Capital Advisors, Ltd. LLC | $1 | 65 | 0.00% | Shares |