Spok HoldingsSPOK
13F holders, Q3 2025 (September 30)143holders +13
25new positions
12sold out
6famous investors
$17.25avg. 13F price*
At the end of Q3 2025, 143 institutions reported holding Spok Holdings Inc. (SPOK) in their 13F filings, up 13 from Q2 2025. 25 opened new positions and 12 sold out. The largest holders were BlackRock, Inc. ($33.4M), Renaissance Technologies ($20.2M) and Vanguard Group Inc. ($19.9M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jeremy Grantham (0.0% of GMO's portfolio).
- Company
- Spok Holdings Inc.
- Filed as
- SPOK HLDGS INC (Q3 2025)
- CUSIP
- 84863T106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 25 | $6.9M |
| Exits | 12 | $5.1M |
All 13F filers, Q2 2025 → Q3 2025: 1,257,002 shares bought and 790,776 shares sold, net +466,226 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 143 holders
| BlackRock, Inc. | 0.00% | Add +12.3% | 1,935,262 | $33.4M |
| Renaissance Technologies | 0.03% | Add +11.0% | 1,172,550 | $20.2M |
| Vanguard Group Inc. | 0.00% | Add +0.5% | 1,154,631 | $19.9M |
| Dimensional Fund Advisors LP | 0.00% | Add +1.1% | 719,050 | $12.4M |
| Geode Capital Management, LLC | 0.00% | Add +16.0% | 601,226 | $10.4M |
| State Street Corp. | 0.00% | Add +2.8% | 457,428 | $7.9M |
| Acadian Asset Management LLC | 0.01% | Add +9.8% | 428,060 | $7.4M |
| HighTower Advisors, LLC | 0.01% | Reduce -9.9% | 408,011 | $7.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -25.3% | 395,900 | $6.8M |
| CSM Advisors, LLC | 0.16% | Reduce -4.3% | 334,345 | $5.8M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +29.8% | 258,284 | $4.5M |
| Northern Trust Corp. | 0.00% | Reduce -0.8% | 240,986 | $4.2M |
| Bank of New York Mellon Corp | 0.00% | Add +0.2% | 195,911 | $3.4M |
| Two Sigma Investments, LP | 0.00% | Add +55.6% | 169,231 | $2.9M |
| Qube Research & Technologies Ltd | 0.00% | Add +11.1% | 161,975 | $2.8M |
| Uniplan Investment Counsel, Inc. | 0.28% | Reduce -14.3% | 161,242 | $2.8M |
| Morgan Stanley | 0.00% | Reduce -5.5% | 144,063 | $2.5M |
| North Star Investment Management Corp. | 0.14% | No change | 122,000 | $2.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -48.9% | 114,533 | $2.0M |
| Trexquant Investment LP | 0.02% | Reduce -20.3% | 88,869 | $1.5M |
| Lazard Asset Management LLC | 0.00% | Add +22.1% | 80,885 | $1.4M |
| Allspring Global Investments Holdings, LLC | 0.00% | New | 74,403 | $1.3M |
| Nuveen, LLC | 0.00% | No change | 72,818 | $1.3M |
| Two Sigma Advisers, LP | 0.00% | Reduce -13.6% | 67,800 | $1.2M |
| UBS Group AG | 0.00% | Add +80.8% | 66,804 | $1.2M |
| Los Angeles Capital Management LLC | 0.00% | Add +2.9% | 65,685 | $1.1M |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -0.8% | 64,164 | $1.1M |
| First Trust Advisors LP | 0.00% | New | 63,519 | $1.1M |
| Panagora Asset Management Inc. | 0.00% | Add +81.2% | 61,226 | $1.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.3% | 61,103 | $1.1M |
| Inspire Investing, LLC | 0.10% | Add +17.9% | 60,695 | $1.0M |
| Bank of America Corp. | 0.00% | Add +27.1% | 59,416 | $1.0M |
| HSBC Holdings PLC | 0.00% | Add +80.1% | 54,069 | $934K |
| Hennion & Walsh Asset Management, Inc. | 0.03% | Reduce -3.4% | 49,938 | $861K |
| American Century Companies Inc. | 0.00% | Add +10.7% | 43,407 | $749K |
| AQR Capital Management | 0.00% | Add +35.0% | 43,280 | $747K |
| Barclays PLC | 0.00% | Reduce -3.9% | 42,207 | $728K |
| D. E. Shaw & Co. | 0.00% | Add +179.6% | 40,542 | $699K |
| Jane Street Group, LLC | 0.00% | New | 40,100 | $692K |
| Keebeck Wealth Management | 0.08% | No change | 40,000 | $690K |
| Rhumbline Advisers | 0.00% | Add +14.8% | 39,963 | $689K |
| Walleye Capital LLC | 0.01% | Add +18.2% | 35,856 | $619K |
| Prudential Financial Inc. | 0.00% | Reduce -28.4% | 35,540 | $613K |
| Marshall Wace, LLP | 0.00% | Add +3.0% | 34,084 | $588K |
| Cubist Systematic Strategies, LLC | 0.01% | Reduce -12.8% | 33,983 | $586K |
| Engineers Gate Manager LP | 0.01% | Add +51.4% | 33,252 | $574K |
| Martingale Asset Management L P | 0.01% | Add +31.8% | 32,876 | $567K |
| Invesco Ltd. | 0.00% | Reduce -2.6% | 32,784 | $566K |
| State Board of Administration of Florida Retirement System | 0.00% | Add +57.3% | 31,714 | $547K |
| Campbell & CO Investment Adviser LLC | 0.04% | New | 29,534 | $509K |
| Millennium Management | 0.00% | Reduce -28.8% | 28,293 | $488K |
| Gsa Capital Partners LLP | 0.04% | New | 26,948 | $465K |
| Significant Wealth Partners LLC | 0.22% | Add +12.1% | 25,969 | $448K |
| Man Group plc | 0.00% | Reduce -3.6% | 25,374 | $438K |
| Stifel Financial Corp. | 0.00% | Add +3.1% | 23,917 | $413K |
| State of Wyoming | 0.05% | Reduce -6.6% | 23,371 | $403K |
| Citadel Advisors | 0.00% | Reduce -64.3% | 23,357 | $403K |
| ExodusPoint Capital Management, LP | 0.01% | New | 23,350 | $403K |
| Wells Fargo & Company | 0.00% | Add +14.2% | 22,889 | $395K |
| Victory Capital Management Inc. | 0.00% | New | 22,888 | $395K |
| Petrus Trust Company, LTA | 0.04% | New | 21,667 | $374K |
| &partners | 0.00% | Add +8.0% | 21,600 | $373K |
| Creative Planning | 0.00% | New | 20,785 | $359K |
| Alliancebernstein L.P. | 0.00% | Add +11.3% | 20,660 | $356K |
| FMR LLC | 0.00% | Add +14.0% | 19,829 | $342K |
| R Squared Ltd | 0.14% | Add +10.5% | 19,227 | $332K |
| Ameriprise Financial Inc. | 0.00% | Reduce -31.1% | 19,097 | $329K |
| BNP Paribas Financial Markets | 0.00% | Add +277.7% | 18,401 | $317K |
| Atom Investors LP | 0.02% | New | 17,827 | $308K |
| Hillsdale Investment Management Inc. | 0.01% | No change | 16,500 | $285K |
| Cerity Partners LLC | 0.00% | Add +11.5% | 13,454 | $232K |
| Deutsche Bank AG | 0.00% | No change | 13,392 | $231K |
| Occudo Quantitative Strategies LP | 0.03% | Add +13.9% | 12,778 | $220K |
| GMO | 0.00% | No change | 12,307 | $212K |
| Truvestments Capital LLC | 0.04% | Reduce -23.6% | 11,751 | $203K |
| MetLife Investment Management, LLC | 0.00% | No change | 11,696 | $202K |
| Algert Global LLC | 0.00% | New | 11,000 | $190K |
| Raymond James Financial Inc. | 0.00% | Add +22.8% | 10,843 | $187K |
| Quantinno Capital Management LP | 0.00% | New | 10,785 | $186K |
| T. Rowe Price Associates Inc. | 0.00% | Add +5.3% | 10,744 | $186K |
| Jump Financial, LLC | 0.00% | New | 10,700 | $185K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 10,673 | $184K |
| Longboard Asset Management, LP | 0.29% | New | 10,350 | $179K |
| Virtus Investment Advisers, LLC | 0.05% | Reduce -3.9% | 9,866 | $170K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -14.3% | 9,553 | $165K |
| AlphaQuest LLC | 0.01% | Reduce -21.1% | 8,951 | $154K |
| New York State Common Retirement Fund | 0.00% | No change | 7,450 | $129K |
| Citigroup Inc. | 0.00% | Reduce -0.3% | 6,876 | $119K |
| New Age Alpha Advisors, LLC | 0.00% | Reduce -41.1% | 6,570 | $113K |
| Virtus Advisers, LLC | 0.06% | New | 6,350 | $110K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +44.1% | 6,203 | $107K |
| Russell Investments Group, Ltd. | 0.00% | Add +74.2% | 4,551 | $79K |
| Legal & General Group Plc | 0.00% | Reduce -30.2% | 3,954 | $68K |
| Cwm, LLC | 0.00% | Add +44.7% | 3,310 | $57K |
| Osaic Holdings, Inc. | 0.00% | Reduce -15.5% | 3,056 | $55K |
| Group One Trading LLC | 0.00% | New | 2,725 | $47K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -8.0% | 2,316 | $40K |
| McIlrath & Eck, LLC | 0.00% | Add +49.3% | 2,166 | $37K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,080 | $36K |
| Larson Financial Group LLC | 0.00% | No change | 2,000 | $35K |
"% of holder's portfolio" is SPOK's weight in each manager's 13F, not the share of Spok Holdings Inc. the manager owns.