SPOK HLDGS INC (SPOK)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 10,826,764 shares against 20,918,137 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $17.6M | 1,719,219 | 0.00% | 8q | +2.6%+$440.2K |
| RENAISSANCE TECHNOLOGIES LLC | $11.8M | 1,148,579 | 0.02% | 31q | -9.0%-$1.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | $8.9M | 872,359 | 0.00% | 2q | +1.5%+$131.4K |
| DIMENSIONAL FUND ADVISORS LP | $7.3M | 717,616 | 0.00% | 31q | HELD |
| GEODE CAPITAL MANAGEMENT, LLC | $6.1M | 595,842 | 0.00% | 31q | +9.2%+$513.4K |
| STATE STREET CORP | $4.8M | 471,584 | 0.00% | 31q | +2.1%+$100.3K |
| HighTower Advisors, LLC | $3.5M | 339,892 | 0.00% | 31q | -11.0%-$429.3K |
| Qube Research & Technologies Ltd | $2.9M | 287,617 | 0.00% | 12q | +67.2%+$1.2M |
| GOLDMAN SACHS GROUP INC | $2.9M | 281,980 | 0.00% | 31q | +28.4%+$639.0K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $2.8M | 273,278 | 0.00% | 2q | +3.1%+$84.5K |
| Bank of New York Mellon Corp | $2.4M | 234,112 | 0.00% | 31q | +7.5%+$167.0K |
| NORTHERN TRUST CORP | $2.3M | 222,895 | 0.00% | 31q | +2.9%+$65.0K |
| Uniplan Investment Counsel, Inc. | $2.2M | 215,764 | 0.21% | 12q | +2.9%+$63.1K |
| CSM Advisors, LLC | $2.2M | 212,910 | 0.05% | 5q | HELD |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | $2.0M | 194,815 | 0.01% | 2q | +86.0%+$922.5K |
| CITADEL ADVISORS LLC | $1.9M | 183,447 | 0.00% | 24q | +932.1%+$1.7M |
| MORGAN STANLEY | $1.7M | 166,575 | 0.00% | 35q | +4.2%+$69.1K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $1.6M | 160,312 | 0.01% | 7q | +37.2%+$445.5K |
| GSA CAPITAL PARTNERS LLP | $1.5M | 150,124 | 0.10% | 4q | +74.9%+$658.3K |
| VANGUARD FIDUCIARY TRUST CO | $1.4M | 136,898 | 0.00% | 2q | +5.9%+$78.3K |
| D. E. Shaw & Co., Inc. | $1.3M | 130,163 | 0.00% | 5q | +45.5%+$416.9K |
| Connor, Clark & Lunn Investment Management Ltd. | $1.1M | 107,475 | 0.00% | 20q | -25.8%-$382.7K |
| PANAGORA ASSET MANAGEMENT INC | $952.6K | 93,030 | 0.00% | 6q | +18.8%+$150.9K |
| North Star Investment Management Corp. | $921.6K | 90,000 | 0.05% | 9q | -26.2%-$327.7K |
| FMR LLC | $913.0K | 89,161 | 0.00% | 31q | +493.3%+$759.1K |
| FIDELIS CAPITAL PARTNERS, LLC | $768.7K | 75,072 | 0.04% | 2q | HELD |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $715.3K | 69,857 | 0.00% | 13q | +24.7%+$141.5K |
| FIRST TRUST ADVISORS LP | $709.8K | 69,321 | 0.00% | 4q | +5.8%+$39.1K |
| JPMORGAN CHASE & CO | $686.1K | 65,653 | 0.00% | 15q | -5.8%-$42.2K |
| Quantinno Capital Management LP | $651.3K | 63,600 | 0.00% | 4q | +143.2%+$383.5K |
| Caption Management, LLC | $614.4K CALL | options only | 0.00% | new | OPTIONS |
| Man Group plc | $591.0K | 57,712 | 0.00% | 6q | +19.4%+$96.1K |
| VICTORY CAPITAL MANAGEMENT INC | $588.9K | 57,510 | 0.00% | 4q | +34.3%+$150.5K |
| Keebeck Wealth Management | $512.0K | 50,000 | 0.05% | 9q | HELD |
| Nuveen, LLC | $505.9K | 49,408 | 0.00% | 6q | -32.6%-$245.0K |
| Campbell & CO Investment Adviser LLC | $492.4K | 48,083 | 0.03% | 4q | -5.5%-$28.5K |
| Numerai GP LLC | $473.3K | 46,223 | 0.04% | 2q | -33.0%-$233.4K |
| AQR CAPITAL MANAGEMENT LLC | $460.7K | 44,987 | 0.00% | 6q | +4.3%+$19.0K |
| Atom Investors LP | $453.5K | 44,289 | 0.04% | new | NEW |
| AMERICAN CENTURY COMPANIES INC | $435.1K | 42,490 | 0.00% | 10q | -2.0%-$9.0K |
| Trexquant Investment LP | $401.2K | 39,184 | 0.00% | 15q | -69.6%-$918.2K |
| AMERIPRISE FINANCIAL INC | $399.5K | 39,014 | 0.00% | 7q | +131.1%+$226.6K |
| Russell Investments Group, Ltd. | $397.3K | 38,801 | 0.00% | 12q | +394.2%+$316.9K |
| Invesco Ltd. | $356.3K | 34,792 | 0.00% | 31q | +14.2%+$44.2K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $354.3K | 34,600 | 0.01% | 2q | +30.1%+$81.9K |
| RHUMBLINE ADVISERS | $322.9K | 31,535 | 0.00% | 13q | +1.1%+$3.5K |
| UBS Group AG | $313.1K | 30,573 | 0.00% | 15q | +5.4%+$15.9K |
| ALLIANCEBERNSTEIN L.P. | $303.7K | 27,860 | 0.00% | 6q | -1.1%-$3.3K |
| EntryPoint Capital, LLC | $295.4K | 28,852 | 0.07% | 2q | +94.3%+$143.4K |
| WELLS FARGO & COMPANY/MN | $290.2K | 28,343 | 0.00% | 31q | +49.2%+$95.8K |
| GUGGENHEIM CAPITAL LLC | $276.7K | 27,026 | 0.00% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $267.2K | 26,094 | 0.00% | 31q | -1.6%-$4.4K |
| MARTINGALE ASSET MANAGEMENT L P | $267.2K | 26,091 | 0.01% | 12q | +13.3%+$31.4K |
| Cambria Investment Management, L.P. | $262.0K | 25,586 | 0.01% | 3q | +29.6%+$59.8K |
| Schonfeld Strategic Advisors LLC | $250.4K | 24,450 | 0.00% | new | NEW |
| TWO SIGMA INVESTMENTS, LP | $237.1K | 23,150 | 0.00% | 6q | +16.3%+$33.3K |
| MILLENNIUM MANAGEMENT LLC | $229.2K | 22,380 | 0.00% | 9q | -39.8%-$151.3K |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $212.9K | 20,788 | 0.00% | 7q | +94.8%+$103.6K |
| DEUTSCHE BANK AG\ | $205.6K | 20,075 | 0.00% | 12q | +11.7%+$21.5K |
| Redhawk Wealth Advisors, Inc. | $196.1K | 19,155 | 0.02% | 2q | +89.0%+$92.4K |
| Point72 Asset Management, L.P. | $195.6K | 19,105 | 0.00% | 3q | -78.7%-$722.1K |
| Hennion & Walsh Asset Management, Inc. | $188.7K | 18,432 | 0.01% | 11q | -1.5%-$2.8K |
| Significant Wealth Partners LLC | $185.8K | 18,145 | 0.20% | 7q | +8.8%+$15.0K |
| MERCER GLOBAL ADVISORS INC /ADV | $157.0K | 15,330 | 0.00% | new | NEW |
| OCCUDO QUANTITATIVE STRATEGIES LP | $155.8K | 15,215 | 0.01% | 6q | -19.7%-$38.2K |
| CANADA PENSION PLAN INVESTMENT BOARD | $155.6K | 15,200 | 0.00% | 3q | HELD |
| JANE STREET GROUP, LLC | $155.6K | 15,193 | 0.00% | 4q | -82.4%-$730.4K |
| Empowered Funds, LLC | $154.8K | 15,119 | 0.00% | 2q | -0.6% |
| PRICE T ROWE ASSOCIATES INC /MD/ | $152.0K | 14,791 | 0.00% | 5q | HELD |
| Brevan Howard Capital Management LP | $143.5K | 14,010 | 0.00% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $142.6K | 13,927 | 0.00% | 21q | +6.6%+$8.8K |
| Cetera Investment Advisers | $142.3K | 13,899 | 0.00% | new | NEW |
| Amundi | $125.4K | 12,242 | 0.00% | new | NEW |
| HSBC HOLDINGS PLC | $124.5K | 12,054 | 0.00% | 5q | -71.0%-$304.2K |
| Vanguard Personalized Indexing Management, LLC | $124.2K | 12,130 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $115.5K | 11,276 | 0.00% | 13q | +74.2%+$49.2K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $111.7K | 10,905 | 0.00% | new | NEW |
| CITIGROUP INC | $108.6K | 10,602 | 0.00% | 14q | +551.6%+$91.9K |
| AXQ CAPITAL, LP | $107.9K | 10,538 | 0.01% | 2q | +2.5%+$2.6K |
| Grantham, Mayo, Van Otterloo & Co. LLC | $107.2K | 10,473 | 0.00% | 30q | HELD |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $98.8K | 9,649 | 0.00% | 9q | HELD |
| Vanguard Global Advisers, LLC | $92.0K | 8,987 | 0.00% | 2q | HELD |
| VIRTUS ADVISERS, LLC | $70.0K | 6,840 | 0.03% | 4q | -4.0%-$2.9K |
| Truvestments Capital LLC | $69.6K | 6,795 | 0.01% | 10q | -3.1%-$2.2K |
| Police & Firemen's Retirement System of New Jersey | $67.6K | 6,597 | 0.00% | 7q | HELD |
| BARCLAYS PLC | $66.7K | 6,509 | 0.00% | 31q | -57.5%-$90.2K |
| OSAIC HOLDINGS, INC. | $61.9K | 6,042 | 0.00% | 20q | +3928.0%+$60.3K |
| New Age Alpha Advisors, LLC | $60.0K | 5,855 | 0.00% | 7q | HELD |
| SIMPLEX TRADING, LLC | $59.4K CALL+PUT | options only | 0.00% | 2q | OPTIONS |
| Triumph Capital Management | $50.9K | 4,971 | 0.01% | 3q | -9.6%-$5.4K |
| PNC Financial Services Group, Inc. | $40.2K | 3,924 | 0.00% | 13q | +613.5%+$34.5K |
| BNP PARIBAS FINANCIAL MARKETS | $35.5K | 3,471 | 0.00% | 16q | -20.9%-$9.4K |
| GROUP ONE TRADING LLC | $33.8K CALL | options only | 0.00% | 13q | OPTIONS |
| SBI Securities Co., Ltd. | $28.2K | 2,753 | 0.00% | 7q | +48.1%+$9.2K |
| Rockefeller Capital Management L.P. | $28.1K | 2,744 | 0.00% | 3q | HELD |
| ROYAL BANK OF CANADA | $26.0K | 2,549 | 0.00% | 31q | +237.2%+$18.3K |
| Tower Research Capital LLC (TRC) | $24.5K | 2,395 | 0.00% | 16q | -42.5%-$18.2K |
| CANADA LIFE ASSURANCE Co | $24.0K | 2,386 | 0.00% | 17q | -7.0%-$1.8K |
| IFG Advisory, LLC | $22.8K | 2,231 | 0.00% | new | NEW |
| GAMMA Investing LLC | $22.0K | 2,150 | 0.00% | 9q | +355.5%+$17.2K |
Showing the largest 100 of 135 reported holders.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | Stein Todd J | Director | Bought | 35,211 | $366.7K ×3 |
| 2026-08-10 | Woods-Keisling Sharon | Corporate Secretary, Treasurer | Sold | 20,000 | $225.9K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 21 | $1.5M | 140,853 | 5 | 9 | 4 | 0.0% |
| Q2 2026 | 135 | $111.6M | 10,826,764 | 20 | 57 | 37 | 0.6% |
| Q1 2026 | 140 | $114.5M | 10,489,654 | 21 | 44 | 51 | 0.0% |
| Q4 2025 | 136 | $147.4M | 11,122,555 | 19 | 40 | 51 | 0.4% |
| Q3 2025 | 146 | $200.9M | 11,573,981 | 27 | 54 | 35 | 0.6% |
| Q2 2025 | 132 | $196.6M | 11,015,084 | 22 | 53 | 33 | 0.9% |
| Q1 2025 | 127 | $174.5M | 10,556,080 | 22 | 41 | 37 | 0.5% |
| Q4 2024 | 117 | $162.9M | 10,101,443 | 17 | 42 | 31 | 0.5% |
| Q3 2024 | 112 | $155.8M | 10,292,821 | 13 | 42 | 33 | 0.5% |
| Q2 2024 | 117 | $151.7M | 10,187,877 | 21 | 42 | 32 | 0.5% |
| Q1 2024 | 111 | $168.2M | 10,430,666 | 19 | 35 | 37 | 1.1% |
| Q4 2023 | 107 | $163.2M | 10,425,026 | 22 | 38 | 30 | 1.1% |
| Q3 2023 | 99 | $149.8M | 10,025,770 | 24 | 26 | 31 | 4.5% |
| Q2 2023 | 88 | $142.5M | 10,185,560 | 27 | 22 | 26 | 5.0% |
| Q1 2023 | 85 | $102.0M | 9,736,686 | 18 | 33 | 21 | 3.2% |
| Q4 2022 | 79 | $84.1M | 10,093,344 | 27 | 20 | 18 | 1.7% |
| Q3 2022 | 60 | $73.6M | 8,932,026 | 10 | 19 | 9 | 7.3% |
| Q2 2022 | 60 | $64.2M | 9,824,734 | 8 | 21 | 16 | 4.1% |
| Q1 2022 | 62 | $91.0M | 11,295,479 | 9 | 12 | 34 | 1.7% |
| Q4 2021 | 67 | $110.2M | 11,812,617 | 5 | 16 | 30 | 0.4% |
| Q3 2021 | 82 | $126.7M | 12,275,194 | 23 | 24 | 24 | 1.4% |
| Q2 2021 | 99 | $135.9M | 14,017,551 | 20 | 26 | 35 | 0.8% |
| Q1 2021 | 97 | $150.9M | 14,382,598 | 8 | 28 | 44 | 0.0% |
| Q4 2020 | 101 | $165.9M | 14,806,068 | 9 | 31 | 34 | 0.0% |
| Q3 2020 | 109 | $143.6M | 15,107,358 | 20 | 23 | 39 | 0.0% |
| Q2 2020 | 98 | $142.4M | 15,222,913 | 15 | 31 | 30 | 0.0% |
| Q1 2020 | 103 | $320.5M | 29,972,560 | 16 | 27 | 37 | 0.0% |
| Q4 2019 | 108 | $194.7M | 15,890,982 | 7 | 31 | 46 | 0.2% |
| Q3 2019 | 115 | $188.6M | 15,726,775 | 12 | 46 | 34 | 0.5% |
| Q2 2019 | 120 | $364.2M | 24,076,121 | 19 | 37 | 45 | 0.6% |
| Q1 2019 | 116 | $318.6M | 23,351,379 | 13 | 35 | 40 | 0.2% |
| Q4 2018 | 110 | $316.6M | 23,849,556 | 4 | 1 | 3 | 0.1% |
