Spok Holdings, Inc
SPOK- Exchange
- Nasdaq
- Industry
- Radiotelephone Communications
- SEC CIK
- 0001289945
In the last 90 days, Spok Holdings, Inc insiders filed 0 open-market purchases and 2 sales; 132 institutions reported holding it in 13F filings for Q2 2026, worth $110.9M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Spok Holdings, Inc as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 125
- +10 vs. Q4 2024
- Shares held
- 10.6M
- +535.8K (+5.3%) vs. Q4 2024
- Total value
- $173.5M
- +$12.7M (+7.9%) vs. Q4 2024
- New holders
- 23
- 41 more added
- Sold out
- 13
- 39 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SPOK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 132 | $110.9M |
| Q1 2026 | 139 | $114.4M |
| Q4 2025 | 134 | $146.0M |
| Q3 2025 | 143 | $197.7M |
| Q2 2025 | 130 | $194.4M |
| Q1 2025 | 125 | $173.5M |
| Q4 2024 | 116 | $162.1M |
| Q3 2024 | 109 | $152.0M |
| Q2 2024 | 114 | $150.8M |
| Q1 2024 | 111 | $160.3M |
| Q4 2023 | 107 | $158.2M |
| Q3 2023 | 97 | $143.1M |
| Q2 2023 | 87 | $135.4M |
| Q1 2023 | 85 | $98.1M |
| Q4 2022 | 78 | $82.6M |
| Q3 2022 | 60 | $68.2M |
| Q2 2022 | 62 | $61.6M |
| Q1 2022 | 62 | $89.4M |
| Q4 2021 | 71 | $107.6M |
| Q3 2021 | 87 | $119.8M |
| Q2 2021 | 103 | $130.0M |
| Q1 2021 | 102 | $145.9M |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Spok Holdings, Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 1,542,396 | $25.4M | 0.00% | +160,277+11.6% | Added |
| Vanguard Group Inc | 1,020,311 | $16.8M | 0.00% | −27,850−2.7% | Reduced |
| Renaissance Technologies LLC | 1,019,450 | $16.8M | 0.03% | +43,800+4.5% | Added |
| Dimensional Fund Advisors LP | 699,563 | $11.5M | 0.00% | −8,285−1.2% | Reduced |
| HighTower Advisors, LLC | 522,651 | $8.59M | 0.01% | −144,062−21.6% | Reduced |
| Goldman Sachs Group Inc | 521,571 | $8.57M | 0.00% | +130,478+33.4% | Added |
| Geode Capital Management, LLC | 488,370 | $8.03M | 0.00% | −26,057−5.1% | Reduced |
| State Street Corp | 437,280 | $7.19M | 0.00% | −1,314−0.3% | Reduced |
| Acadian Asset Management LLC | 376,932 | $6.20M | 0.02% | +7,301+2.0% | Added |
| Foundry Partners, LLC | 359,925 | $5.92M | 0.31% | −2,115−0.6% | Reduced |
| Northern Trust Corp | 216,782 | $3.56M | 0.00% | +9,714+4.7% | Added |
| Uniplan Investment Counsel, Inc. | 205,332 | $3.38M | 0.33% | +1,745+0.9% | Added |
| JPMorgan Chase & Co | 199,062 | $3.27M | 0.00% | −14,513−6.8% | Reduced |
| Bank of New York Mellon Corp | 190,118 | $3.13M | 0.00% | −9,871−4.9% | Reduced |
| Morgan Stanley | 168,516 | $2.77M | 0.00% | +10,116+6.4% | Added |
| Citadel Advisors LLC | 154,320 | $2.54M | 0.00% | +123,508+400.8% | Added |
| Prelude Capital Management, LLC | 152,885 | $2.51M | 0.25% | +3,800+2.5% | Added |
| Trexquant Investment LP | 143,346 | $2.36M | 0.03% | +36,879+34.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 140,562 | $2.31M | 0.01% | +35,321+33.6% | Added |
| Qube Research & Technologies Ltd | 125,088 | $2.06M | 0.00% | +53,208+74.0% | Added |
| North Star Investment Management Corp. | 122,000 | $2.01M | 0.15% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 103,107 | $1.70M | 0.00% | −7,890−7.1% | Reduced |
| Jacobs Levy Equity Management, Inc | 93,576 | $1.54M | 0.01% | +15,484+19.8% | Added |
| Prudential Financial Inc | 84,060 | $1.38M | 0.00% | −29,980−26.3% | Reduced |
| Nuveen, LLC | 81,345 | $1.34M | 0.00% | +81,345 | New |
| Two Sigma Advisers, LP | 66,300 | $1.09M | 0.00% | +33,500+102.1% | Added |
| Two Sigma Investments, LP | 63,830 | $1.05M | 0.00% | +63,830 | New |
| Charles Schwab Investment Management Inc | 55,314 | $909.4K | 0.00% | +1,966+3.7% | Added |
| Hennion & Walsh Asset Management, Inc. | 54,061 | $888.8K | 0.04% | +3,840+7.6% | Added |
| Marshall Wace, LLP | 53,257 | $875.5K | 0.00% | +53,257 | New |
| Keebeck Wealth Management, LLC | 50,000 | $822.0K | 0.12% | 00.0% | Unchanged |
| CWM Advisors, LLC | 48,600 | $799.0K | 0.09% | −1,314−2.6% | Reduced |
| Millennium Management LLC | 48,503 | $797.4K | 0.00% | −4,426−8.4% | Reduced |
| Invesco Ltd. | 38,094 | $626.3K | 0.00% | −2,022−5.0% | Reduced |
| Cubist Systematic Strategies, LLC | 36,604 | $601.8K | 0.01% | +36,604 | New |
| American Century Companies Inc | 34,097 | $560.6K | 0.00% | +4,170+13.9% | Added |
| Panagora Asset Management Inc | 33,863 | $556.7K | 0.00% | +33,863 | New |
| State Board of Administration of Florida Retirement System | 33,473 | $550.3K | 0.00% | −11,145−25.0% | Reduced |
| Rhumbline Advisers | 33,032 | $543.0K | 0.00% | −1,822−5.2% | Reduced |
| UBS Group AG | 30,836 | $506.9K | 0.00% | −13,328−30.2% | Reduced |
| Ameriprise Financial Inc | 30,779 | $506.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 28,394 | $466.8K | 0.00% | +28,394 | New |
| Los Angeles Capital Management LLC | 28,350 | $466.1K | 0.00% | −4,150−12.8% | Reduced |
| Man Group plc | 27,244 | $447.9K | 0.00% | +27,244 | New |
| Engineers Gate Manager LP | 26,906 | $442.3K | 0.01% | −3,634−11.9% | Reduced |
| Susquehanna International Group, LLP | 25,673 | $422.1K | 0.00% | +11,428+80.2% | Added |
| Gsa Capital Partners LLP | 25,677 | $422.0K | 0.04% | −11,059−30.1% | Reduced |
| Barclays PLC | 23,776 | $390.9K | 0.00% | −3,737−13.6% | Reduced |
| Royal Bank of Canada | 23,675 | $389.0K | 0.00% | −1,355−5.4% | Reduced |
| Wells Fargo & Company | 23,407 | $384.8K | 0.00% | +3,975+20.5% | Added |
| Stifel Financial Corp | 22,993 | $378.0K | 0.00% | +4,202+22.4% | Added |
| Significant Wealth Partners LLC | 22,167 | $364.4K | 0.19% | +3,768+20.5% | Added |
| Bank of America Corp | 21,116 | $347.1K | 0.00% | −5,862−21.7% | Reduced |
| Truvestments Capital LLC | 20,471 | $336.5K | 0.07% | −109,061−84.2% | Reduced |
| Martingale Asset Management L P | 19,516 | $320.8K | 0.01% | +206+1.1% | Added |
| FMR LLC | 19,343 | $318.0K | 0.00% | −947−4.7% | Reduced |
| Deutsche Bank AG | 17,429 | $286.5K | 0.00% | −2,646−13.2% | Reduced |
| Occudo Quantitative Strategies LP | 17,513 | $286.5K | 0.04% | +17,513 | New |
| AQR Capital Management LLC | 16,464 | $270.7K | 0.00% | +16,464 | New |
| Financial Advocates Investment Management | 16,349 | $268.8K | 0.02% | −662−3.9% | Reduced |
| Jump Financial, LLC | 16,144 | $265.4K | 0.00% | +16,144 | New |
| Citigroup Inc | 13,764 | $226.3K | 0.00% | −6,281−31.3% | Reduced |
| Franklin Resources Inc | 13,464 | $221.3K | 0.00% | +13,464 | New |
| Quest Partners LLC | 12,737 | $209.4K | 0.02% | +6,570+106.5% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 12,307 | $202.3K | 0.00% | +1,429+13.1% | Added |
| Cerity Partners LLC | 11,940 | $196.3K | 0.00% | +555+4.9% | Added |
| DekaBank Deutsche Girozentrale | 11,442 | $183.0K | 0.00% | +11,442 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 10,970 | $180.3K | 0.00% | +468+4.5% | Added |
| Public Employees Retirement System of Ohio | 10,673 | $175.5K | 0.00% | −1,530−12.5% | Reduced |
| New Age Alpha Advisors, LLC | 10,623 | $174.6K | 0.01% | +8,480+395.7% | Added |
| MetLife Investment Management | 10,333 | $169.9K | 0.00% | 00.0% | Unchanged |
| EntryPoint Capital, LLC | 10,322 | $169.7K | 0.08% | +10,322 | New |
| Cambridge Investment Research Advisors, Inc. | 10,297 | $169.0K | 0.00% | −10−0.1% | Reduced |
| Alliancebernstein L.P. | 10,060 | $165.4K | 0.00% | +10,060 | New |
| Virtus Investment Advisers, Inc. | 9,392 | $154.4K | 0.04% | +9,392 | New |
| Corebridge Financial, Inc. | 8,961 | $147.3K | 0.00% | −133−1.5% | Reduced |
| New York State Common Retirement Fund | 7,450 | $122.5K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 6,501 | $106.9K | 0.01% | +6,501 | New |
| SG Americas Securities, LLC | 6,429 | $106.0K | 0.00% | −1,592−19.8% | Reduced |
| Legal & General Group Plc | 5,546 | $91.2K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 4,304 | $70.8K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 3,790 | $62.3K | 0.00% | +3,759+12,125.8% | Added |
| Advisor Group Holdings, Inc. | 3,530 | $58.0K | 0.00% | −517−12.8% | Reduced |
| US Bancorp | 2,790 | $45.9K | 0.00% | +2,500+862.1% | Added |
| SBI Securities Co., Ltd. | 2,200 | $36.2K | 0.00% | +844+62.2% | Added |
| Larson Financial Group LLC | 2,000 | $32.9K | 0.00% | +250+14.3% | Added |
| Russell Investments Group, Ltd. | 1,866 | $30.7K | 0.00% | +741+65.9% | Added |
| CWM, LLC | 1,743 | $29.0K | 0.00% | +1,317+309.2% | Added |
| Hager Investment Management Services, LLC | 1,498 | $24.6K | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,468 | $24.1K | 0.00% | 00.0% | Unchanged |
| McIlrath & Eck, LLC | 1,451 | $23.9K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 1,325 | $21.8K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 1,226 | $20.0K | 0.00% | +155+14.5% | Added |
| BNP Paribas Arbitrage, SA | 1,094 | $18.0K | 0.00% | −1,467−57.3% | Reduced |
| Mechanics Financial Corp | 813 | $13.4K | 0.01% | +813 | New |
| Darwin Advisors, LLC | 792 | $12.7K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 730 | $12.0K | 0.00% | +370+102.8% | Added |
| Lazard Asset Management LLC | 777 | $12.0K | 0.00% | −5,091−86.8% | Reduced |
| Tower Research Capital LLC (TRC) | 661 | $10.9K | 0.00% | −723−52.2% | Reduced |
| Amalgamated Bank | 600 | $10.0K | 0.00% | 00.0% | Unchanged |