SPOK Institutional Ownership & Shareholders
SPOK HOLDINGS INC (SPOK) is currently held by 130 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $107.39M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SPOK tracked by InsiderSet, reporting ownership valued at approximately $17.60M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $20.61M, representing an estimated gain of +17.09% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 63% of the total disclosed SPOK value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Renaissance Technologies LLC, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in SPOK HOLDINGS INC (SPOK).
This page ranks the largest institutional SPOK shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
130
Total Reported Value
$107.39M
Largest Holder
Blackrock, Inc.
Largest Position
$17.60M
Insider Transactions (90d)
8
Latest Filing Quarter
Q2 2026
New Institutional Positions
94
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 1,719,219 | $17,604,803 | $20,613,436 | +$3,008,633 | +17.09% | |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 1,148,579 | $11,761,449 | $13,771,462 | +$2,010,013 | +17.09% |
| Vanguard Capital Management Llc | 0.00% | 872,359 | $8,932,956 | $10,459,584 | +$1,526,628 | +17.09% | |
| Dimensional Fund Advisors Lp | 0.00% | 717,616 | $7,348,899 | $8,604,216 | +$1,255,317 | +17.08% | |
| Geode Capital Management, Llc | 0.00% | 595,842 | $6,102,783 | $7,144,146 | +$1,041,363 | +17.06% | |
| State Street Corp | 0.00% | 471,584 | $4,829,020 | $5,654,292 | +$825,272 | +17.09% | |
| Qube Research & Technologies Ltd | 0.00% | 287,617 | $2,945,198 | $3,448,528 | +$503,330 | +17.09% | |
| Goldman Sachs Group Inc | 0.00% | 281,980 | $2,887,476 | $3,380,940 | +$493,464 | +17.09% | |
| Vanguard Portfolio Management Llc | 0.00% | 273,278 | $2,798,367 | $3,276,603 | +$478,236 | +17.09% | |
| Bank Of New York Mellon Corp | 0.00% | 234,112 | $2,397,305 | $2,807,003 | +$409,698 | +17.09% | |
| Northern Trust Corp | 0.00% | 222,895 | $2,282,445 | $2,672,511 | +$390,066 | +17.09% | |
| Uniplan Investment Counsel, Inc. | 0.21% | 215,764 | $2,209,424 | $2,587,010 | +$377,586 | +17.09% | |
| Csm Advisors, Llc | 0.05% | 212,910 | $2,179,000 | $2,552,791 | +$373,791 | +17.15% | |
| United Capital Financial Advisors, Llc | 0.01% | 194,815 | $1,994,906 | $2,335,832 | +$340,926 | +17.09% | |
| Citadel Advisors Llc | 0.00% | 183,447 | $1,878,497 | $2,199,530 | +$321,033 | +17.09% | |
| Morgan Stanley | 0.00% | 166,575 | $1,705,736 | $1,997,234 | +$291,498 | +17.09% | |
| Jacobs Levy Equity Management, Inc | 0.01% | 160,312 | $1,641,595 | $1,922,141 | +$280,546 | +17.09% | |
| Gsa Capital Partners Llp | 0.10% | 150,124 | $1,537,000 | $1,799,987 | +$262,987 | +17.11% | |
| Vanguard Fiduciary Trust Co | 0.00% | 136,898 | $1,401,836 | $1,641,407 | +$239,571 | +17.09% | |
| D. E. Shaw & Co., Inc. | 0.00% | 130,163 | $1,332,870 | $1,560,654 | +$227,784 | +17.09% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 107,475 | $1,100,544 | $1,288,625 | +$188,081 | +17.09% | |
| Panagora Asset Management Inc | 0.00% | 93,030 | $952,627 | $1,115,430 | +$162,803 | +17.09% | |
| North Star Investment Management Corp. | 0.05% | 90,000 | $944,100 | $1,079,100 | +$135,000 | +14.30% | |
| Fmr Llc | 0.00% | 89,161 | $913,005 | $1,069,040 | +$156,035 | +17.09% | |
| Fidelis Capital Partners, Llc | 0.04% | 75,072 | $768,737 | $900,113 | +$131,376 | +17.09% | |
| Charles Schwab Investment Management Inc | 0.00% | 69,857 | $715,336 | $837,585 | +$122,249 | +17.09% | |
| First Trust Advisors Lp | 0.00% | 69,321 | $709,847 | $831,159 | +$121,312 | +17.09% | |
| Jpmorgan Chase & Co | 0.00% | 65,653 | $686,074 | $787,179 | +$101,105 | +14.74% | |
| Quantinno Capital Management Lp | 0.00% | 63,600 | $651,270 | $762,564 | +$111,294 | +17.09% | |
| Man Group Plc | 0.00% | 57,712 | $590,971 | $691,967 | +$100,996 | +17.09% | |
| Victory Capital Management Inc | 0.00% | 57,510 | $588,902 | $689,545 | +$100,643 | +17.09% | |
| Keebeck Wealth Management | 0.05% | 50,000 | $512,000 | $599,500 | +$87,500 | +17.09% | |
| Nuveen, Llc | 0.00% | 49,408 | $505,938 | $592,402 | +$86,464 | +17.09% | |
| Campbell & Co Investment Adviser Llc | 0.03% | 48,083 | $492,370 | $576,515 | +$84,145 | +17.09% | |
| Numerai Gp Llc | 0.04% | 46,223 | $473,324 | $554,214 | +$80,890 | +17.09% | |
| Aqr Capital Management Llc | 0.00% | 44,987 | $460,669 | $539,394 | +$78,725 | +17.09% | |
| Atom Investors Lp | 0.04% | 44,289 | $453,519 | $531,025 | +$77,506 | +17.09% | |
| American Century Companies Inc | 0.00% | 42,490 | $435,098 | $509,455 | +$74,357 | +17.09% | |
| Trexquant Investment Lp | 0.00% | 39,184 | $401,244 | $469,816 | +$68,572 | +17.09% | |
| Ameriprise Financial Inc | 0.00% | 39,014 | $399,503 | $467,778 | +$68,275 | +17.09% | |
| Russell Investments Group, Ltd. | 0.00% | 38,801 | $397,316 | $465,224 | +$67,908 | +17.09% | |
| Invesco Ltd. | 0.00% | 34,792 | $356,270 | $417,156 | +$60,886 | +17.09% | |
| Bridgeway Capital Management, Llc | 0.01% | 34,600 | $354,304 | $414,854 | +$60,550 | +17.09% | |
| Rhumbline Advisers | 0.00% | 31,535 | $322,911 | $378,105 | +$55,194 | +17.09% | |
| Ubs Group Ag | 0.00% | 30,573 | $313,068 | $366,570 | +$53,502 | +17.09% | |
| Alliancebernstein L.P. | 0.00% | 27,860 | $303,674 | $334,041 | +$30,367 | +10.00% | |
| Entrypoint Capital, Llc | 0.07% | 28,852 | $295,444 | $345,935 | +$50,491 | +17.09% | |
| Wells Fargo & Company/Mn | 0.00% | 28,343 | $290,226 | $339,833 | +$49,607 | +17.09% | |
| Guggenheim Capital Llc | 0.00% | 27,026 | $276,746 | $324,042 | +$47,296 | +17.09% | |
| Bank Of America Corp | 0.00% | 26,094 | $267,202 | $312,867 | +$45,665 | +17.09% |
Frequently asked questions about SPOK
Who are the largest institutional holders of SPOK?
The largest institutional holders of SPOK reported in the latest SEC Form 13F filings include Blackrock, Inc., Renaissance Technologies LLC, Vanguard Capital Management Llc, Dimensional Fund Advisors Lp, and Geode Capital Management, Llc. InsiderSet ranks institutional holders by their latest reported SPOK position.
What is SPOK institutional ownership?
This page tracks SPOK positions reported by institutional investment managers through SEC Form 13F. SPOK HOLDINGS INC (SPOK) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SPOK?
InsiderSet currently tracks 130 institutional managers reporting SPOK holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SPOK shareholders.
How much SPOK stock do institutions own?
Institutional investment managers disclosed approximately $107.39M in SPOK holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SPOK institutional ownership last updated?
The latest SPOK institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SPOK holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SPOK position after the reporting date.
Are institutions buying or selling SPOK?
Institutional buying and selling can be analyzed by comparing SPOK positions across consecutive 13F reporting periods. InsiderSet's SPOK Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SPOK ownership changes.
How has SPOK institutional ownership changed over time?
InsiderSet tracks SPOK institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.