Spok HoldingsSPOK
13F holders, Q4 2025 (December 31)134holders −9
19new positions
28sold out
7famous investors
$13.20avg. 13F price*
At the end of Q4 2025, 134 institutions reported holding Spok Holdings Inc. (SPOK) in their 13F filings, down 9 from Q3 2025. 19 opened new positions and 28 sold out. The largest holders were BlackRock, Inc. ($23.7M), Renaissance Technologies ($16.4M) and Vanguard Group Inc. ($16.2M). 7 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Spok Holdings Inc.
- Filed as
- SPOK HLDGS INC (Q4 2025)
- CUSIP
- 84863T106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 19 | $2.2M |
| Exits | 28 | $9.2M |
All 13F filers, Q3 2025 → Q4 2025: 1,018,776 shares bought and 1,392,983 shares sold, net −374,207 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 134 holders
| BlackRock, Inc. | 0.00% | Reduce -7.0% | 1,799,549 | $23.7M |
| Renaissance Technologies | 0.03% | Add +6.3% | 1,246,579 | $16.4M |
| Vanguard Group Inc. | 0.00% | Add +6.5% | 1,229,078 | $16.2M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -2.1% | 703,826 | $9.3M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.4% | 598,552 | $7.9M |
| State Street Corp. | 0.00% | Reduce -2.3% | 446,919 | $5.9M |
| HighTower Advisors, LLC | 0.01% | Reduce -6.3% | 382,375 | $5.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -8.4% | 362,471 | $4.8M |
| Acadian Asset Management LLC | 0.01% | Reduce -24.8% | 322,043 | $4.2M |
| CSM Advisors, LLC | 0.09% | Reduce -21.4% | 262,945 | $3.5M |
| Northern Trust Corp. | 0.00% | Reduce -9.9% | 217,094 | $2.9M |
| Bank of New York Mellon Corp | 0.00% | Add +8.6% | 212,816 | $2.8M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -23.8% | 196,865 | $2.6M |
| Qube Research & Technologies Ltd | 0.00% | Add +9.9% | 178,092 | $2.3M |
| Morgan Stanley | 0.00% | Add +23.3% | 177,693 | $2.3M |
| Trexquant Investment LP | 0.02% | Add +92.0% | 170,653 | $2.3M |
| Uniplan Investment Counsel, Inc. | 0.22% | Reduce -0.1% | 160,997 | $2.1M |
| FMR LLC | 0.00% | Add +540.4% | 126,982 | $1.7M |
| Millennium Management | 0.00% | Add +344.7% | 125,808 | $1.7M |
| North Star Investment Management Corp. | 0.10% | No change | 122,000 | $1.6M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +85.4% | 118,967 | $1.6M |
| Los Angeles Capital Management LLC | 0.00% | Add +55.3% | 102,021 | $1.4M |
| Panagora Asset Management Inc. | 0.00% | Add +52.0% | 93,085 | $1.2M |
| Quantinno Capital Management LP | 0.00% | Add +759.8% | 92,726 | $1.2M |
| JPMorgan Chase & Co. | 0.00% | Reduce -19.8% | 91,823 | $1.2M |
| Nuveen, LLC | 0.00% | No change | 72,818 | $960K |
| D. E. Shaw & Co. | 0.00% | Add +74.2% | 70,628 | $932K |
| First Trust Advisors LP | 0.00% | Add +2.5% | 65,119 | $859K |
| Two Sigma Investments, LP | 0.00% | Reduce -63.0% | 62,587 | $826K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.2% | 60,989 | $804K |
| HSBC Holdings PLC | 0.00% | Add +11.6% | 60,331 | $797K |
| UBS Group AG | 0.00% | Reduce -14.7% | 56,955 | $751K |
| Citadel Advisors | 0.00% | Add +112.8% | 49,692 | $655K |
| Campbell & CO Investment Adviser LLC | 0.03% | Add +66.0% | 49,038 | $647K |
| Barclays PLC | 0.00% | Add +5.5% | 44,520 | $587K |
| American Century Companies Inc. | 0.00% | Add +0.6% | 43,683 | $576K |
| Two Sigma Advisers, LP | 0.00% | Reduce -38.0% | 42,072 | $555K |
| Gsa Capital Partners LLP | 0.05% | Add +48.5% | 40,028 | $528K |
| Keebeck Wealth Management | 0.06% | No change | 40,000 | $528K |
| Victory Capital Management Inc. | 0.00% | Add +61.8% | 37,037 | $489K |
| Bank of America Corp. | 0.00% | Reduce -38.6% | 36,487 | $481K |
| Engineers Gate Manager LP | 0.01% | Add +9.3% | 36,356 | $480K |
| Rhumbline Advisers | 0.00% | Reduce -21.1% | 31,534 | $416K |
| Invesco Ltd. | 0.00% | Reduce -5.7% | 30,930 | $408K |
| Wells Fargo & Company | 0.00% | Add +29.5% | 29,634 | $391K |
| Man Group plc | 0.00% | Add +4.2% | 26,439 | $349K |
| Alliancebernstein L.P. | 0.00% | Add +16.9% | 24,160 | $319K |
| Martingale Asset Management L P | 0.01% | Reduce -27.9% | 23,694 | $313K |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -28.4% | 22,698 | $299K |
| Boothbay Fund Management, LLC | 0.01% | New | 22,231 | $293K |
| Magnetar Financial LLC | 0.00% | New | 21,481 | $283K |
| Ameriprise Financial Inc. | 0.00% | Add +4.8% | 20,009 | $264K |
| Brevan Howard Capital Management LP | 0.01% | New | 19,185 | $253K |
| Hennion & Walsh Asset Management, Inc. | 0.01% | Reduce -62.3% | 18,846 | $249K |
| Point72 Asset Management | 0.00% | New | 18,725 | $247K |
| AQR Capital Management | 0.00% | Reduce -62.2% | 16,366 | $216K |
| Squarepoint Ops LLC | 0.00% | New | 16,112 | $213K |
| Canada Pension Plan Investment Board | 0.00% | New | 15,200 | $200K |
| Significant Wealth Partners LLC | 0.22% | Reduce -43.0% | 14,798 | $195K |
| Virtus Advisers, LLC | 0.09% | Add +130.9% | 14,663 | $193K |
| Hillsdale Investment Management Inc. | 0.01% | Reduce -14.6% | 14,100 | $186K |
| Jane Street Group, LLC | 0.00% | Reduce -65.7% | 13,764 | $182K |
| Occudo Quantitative Strategies LP | 0.01% | Add +5.9% | 13,532 | $178K |
| Deutsche Bank AG | 0.00% | Reduce -1.8% | 13,154 | $174K |
| GMO | 0.00% | No change | 12,307 | $162K |
| Cambria Investment Management, L.P. | 0.01% | New | 12,154 | $160K |
| Algert Global LLC | 0.00% | Add +9.8% | 12,080 | $159K |
| Carlson Financial, Inc. | 0.09% | — | 11,233 | $148K |
| State of Wisconsin Investment Board | 0.00% | New | 11,100 | $146K |
| MetLife Investment Management, LLC | 0.00% | Reduce -5.5% | 11,051 | $146K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 10,744 | $142K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 10,673 | $141K |
| Oxford Asset Management LLP | 0.05% | New | 10,352 | $137K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -1.1% | 9,445 | $125K |
| AlphaQuest LLC | 0.01% | Add +2.4% | 9,168 | $121K |
| Truvestments Capital LLC | 0.02% | Reduce -24.9% | 8,828 | $116K |
| Citigroup Inc. | 0.00% | Add +2.3% | 7,032 | $93K |
| Versant Capital Management, Inc | 0.01% | New | 6,650 | $88K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +6.3% | 6,597 | $87K |
| New Age Alpha Advisors, LLC | 0.00% | Reduce -10.9% | 5,855 | $77K |
| Aquatic Capital Management LLC | 0.00% | New | 4,966 | $66K |
| Triumph Capital Management | 0.01% | New | 4,801 | $63K |
| BNP Paribas Financial Markets | 0.00% | Reduce -74.5% | 4,686 | $62K |
| Legal & General Group Plc | 0.00% | No change | 3,954 | $52K |
| State of Wyoming | 0.01% | Reduce -83.5% | 3,846 | $51K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -17.9% | 3,738 | $49K |
| Royal Bank of Canada | 0.00% | Add +182.8% | 3,100 | $40K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +146.8% | 2,702 | $36K |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +69.8% | 2,465 | $33K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,080 | $27K |
| Larson Financial Group LLC | 0.00% | No change | 2,000 | $26K |
| GAMMA Investing LLC | 0.00% | Add +191.0% | 1,839 | $24K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -24.6% | 1,747 | $23K |
| Kestra Advisory Services, LLC | 0.00% | New | 1,738 | $23K |
| McIlrath & Eck, LLC | 0.00% | Reduce -33.0% | 1,451 | $19K |
| California State Teachers Retirement System | 0.00% | Reduce -1.3% | 1,252 | $17K |
| Sterling Capital Management LLC | 0.00% | Reduce -16.5% | 1,174 | $15K |
| Cwm, LLC | 0.00% | Reduce -74.1% | 857 | $11K |
| Nisa Investment Advisors, LLC | 0.00% | Add +1621.7% | 792 | $10K |
| NewEdge Advisors, LLC | 0.00% | Add +43.2% | 643 | $8K |
"% of holder's portfolio" is SPOK's weight in each manager's 13F, not the share of Spok Holdings Inc. the manager owns.