Spok HoldingsSPOK
13F holders, Q1 2025 (March 31)124holders +9
22new positions
13sold out
5famous investors
$16.44avg. 13F price*
At the end of Q1 2025, 124 institutions reported holding Spok Holdings Inc. (SPOK) in their 13F filings, up 9 from Q4 2024. 22 opened new positions and 13 sold out. The largest holders were BlackRock, Inc. ($25.4M), Vanguard Group Inc. ($16.8M) and Renaissance Technologies ($16.8M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Spok Holdings Inc.
- Filed as
- SPOK HLDGS INC (Q1 2025)
- CUSIP
- 84863T106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $5.9M |
| Exits | 13 | $2.6M |
All 13F filers, Q4 2024 → Q1 2025: 1,083,509 shares bought and 629,072 shares sold, net +454,437 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 124 holders
| BlackRock, Inc. | 0.00% | Add +11.6% | 1,542,396 | $25.4M |
| Vanguard Group Inc. | 0.00% | Reduce -2.7% | 1,020,311 | $16.8M |
| Renaissance Technologies | 0.03% | Add +4.5% | 1,019,450 | $16.8M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -1.2% | 699,563 | $11.5M |
| HighTower Advisors, LLC | 0.01% | Reduce -21.6% | 522,651 | $8.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +33.4% | 521,571 | $8.6M |
| Geode Capital Management, LLC | 0.00% | Reduce -5.1% | 488,370 | $8.0M |
| State Street Corp. | 0.00% | Reduce -0.3% | 437,280 | $7.2M |
| Acadian Asset Management LLC | 0.02% | Add +2.0% | 376,932 | $6.2M |
| Foundry Partners, LLC | 0.31% | Reduce -0.6% | 359,925 | $5.9M |
| Northern Trust Corp. | 0.00% | Add +4.7% | 216,782 | $3.6M |
| Uniplan Investment Counsel, Inc. | 0.34% | Add +0.9% | 205,332 | $3.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.8% | 199,062 | $3.3M |
| Bank of New York Mellon Corp | 0.00% | Reduce -4.9% | 190,118 | $3.1M |
| Morgan Stanley | 0.00% | Add +6.4% | 168,516 | $2.8M |
| Citadel Advisors | 0.00% | Add +400.8% | 154,320 | $2.5M |
| Prelude Capital Management, LLC | 0.25% | Add +2.5% | 152,885 | $2.5M |
| Trexquant Investment LP | 0.03% | Add +34.6% | 143,346 | $2.4M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +33.6% | 140,562 | $2.3M |
| Qube Research & Technologies Ltd | 0.00% | Add +74.0% | 125,088 | $2.1M |
| North Star Investment Management Corp. | 0.15% | No change | 122,000 | $2.0M |
| Allspring Global Investments Holdings, LLC | 0.00% | Reduce -7.1% | 103,107 | $1.7M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +19.8% | 93,576 | $1.5M |
| Prudential Financial Inc. | 0.00% | Reduce -26.3% | 84,060 | $1.4M |
| Nuveen, LLC | 0.00% | — | 81,345 | $1.3M |
| Two Sigma Advisers, LP | 0.00% | Add +102.1% | 66,300 | $1.1M |
| Two Sigma Investments, LP | 0.00% | New | 63,830 | $1.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +3.7% | 55,314 | $909K |
| Hennion & Walsh Asset Management, Inc. | 0.04% | Add +7.7% | 54,061 | $889K |
| Marshall Wace, LLP | 0.00% | New | 53,257 | $876K |
| Keebeck Wealth Management | 0.12% | No change | 50,000 | $822K |
| Inspire Investing, LLC | 0.10% | Reduce -2.6% | 48,600 | $799K |
| Millennium Management | 0.00% | Reduce -8.4% | 48,503 | $797K |
| Invesco Ltd. | 0.00% | Reduce -5.0% | 38,094 | $626K |
| Cubist Systematic Strategies, LLC | 0.01% | New | 36,604 | $602K |
| American Century Companies Inc. | 0.00% | Add +13.9% | 34,097 | $561K |
| Panagora Asset Management Inc. | 0.00% | New | 33,863 | $557K |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -25.0% | 33,473 | $550K |
| Rhumbline Advisers | 0.00% | Reduce -5.2% | 33,032 | $543K |
| UBS Group AG | 0.00% | Reduce -30.2% | 30,836 | $507K |
| Ameriprise Financial Inc. | 0.00% | No change | 30,779 | $506K |
| Jane Street Group, LLC | 0.00% | New | 28,394 | $467K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -12.8% | 28,350 | $466K |
| Man Group plc | 0.00% | New | 27,244 | $448K |
| Engineers Gate Manager LP | 0.01% | Reduce -11.9% | 26,906 | $442K |
| Susquehanna International Group, LLP | 0.00% | Add +80.2% | 25,673 | $422K |
| Gsa Capital Partners LLP | 0.04% | Reduce -30.1% | 25,677 | $422K |
| Barclays PLC | 0.00% | Reduce -13.6% | 23,776 | $391K |
| Royal Bank of Canada | 0.00% | Reduce -5.4% | 23,675 | $389K |
| Wells Fargo & Company | 0.00% | Add +20.5% | 23,407 | $385K |
| Stifel Financial Corp. | 0.00% | Add +22.4% | 22,993 | $378K |
| Significant Wealth Partners LLC | 0.19% | Add +20.5% | 22,167 | $364K |
| Bank of America Corp. | 0.00% | Reduce -21.7% | 21,116 | $347K |
| Truvestments Capital LLC | 0.07% | Reduce -84.2% | 20,471 | $337K |
| Martingale Asset Management L P | 0.01% | Add +1.1% | 19,516 | $321K |
| FMR LLC | 0.00% | Reduce -4.7% | 19,343 | $318K |
| Deutsche Bank AG | 0.00% | Reduce -13.2% | 17,429 | $287K |
| Occudo Quantitative Strategies LP | 0.04% | New | 17,513 | $287K |
| AQR Capital Management | 0.00% | New | 16,464 | $271K |
| Financial Advocates Investment Management | 0.02% | Reduce -3.9% | 16,349 | $269K |
| Jump Financial, LLC | 0.00% | New | 16,144 | $265K |
| Citigroup Inc. | 0.00% | Reduce -31.3% | 13,764 | $226K |
| Franklin Resources Inc. | 0.00% | New | 13,464 | $221K |
| AlphaQuest LLC | 0.02% | Add +106.5% | 12,737 | $209K |
| GMO | 0.00% | Add +13.1% | 12,307 | $202K |
| Cerity Partners LLC | 0.00% | Add +4.9% | 11,940 | $196K |
| DekaBank Deutsche Girozentrale | 0.00% | New | 11,442 | $183K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.5% | 10,970 | $180K |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -12.5% | 10,673 | $175K |
| New Age Alpha Advisors, LLC | 0.01% | Add +395.7% | 10,623 | $175K |
| MetLife Investment Management, LLC | 0.00% | No change | 10,333 | $170K |
| EntryPoint Capital, LLC | 0.08% | New | 10,322 | $170K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Reduce -0.1% | 10,297 | $169K |
| Alliancebernstein L.P. | 0.00% | New | 10,060 | $165K |
| Virtus Investment Advisers, LLC | 0.04% | New | 9,392 | $154K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.5% | 8,961 | $147K |
| New York State Common Retirement Fund | 0.00% | No change | 7,450 | $122K |
| State of Wyoming | 0.01% | New | 6,501 | $107K |
| SG Americas Securities, LLC | 0.00% | Reduce -19.9% | 6,429 | $106K |
| Legal & General Group Plc | 0.00% | No change | 5,546 | $91K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 4,304 | $71K |
| Nisa Investment Advisors, LLC | 0.00% | Add +12125.8% | 3,790 | $62K |
| Osaic Holdings, Inc. | 0.00% | Reduce -12.8% | 3,530 | $58K |
| US Bancorp \de | 0.00% | Add +862.1% | 2,790 | $46K |
| SBI Securities Co., Ltd. | 0.00% | Add +62.2% | 2,200 | $36K |
| Larson Financial Group LLC | 0.00% | Add +14.3% | 2,000 | $33K |
| Russell Investments Group, Ltd. | 0.00% | Add +65.9% | 1,866 | $31K |
| Cwm, LLC | 0.00% | Add +309.1% | 1,743 | $29K |
| Hager Investment Management Services, LLC | 0.02% | No change | 1,498 | $25K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,468 | $24K |
| McIlrath & Eck, LLC | 0.00% | No change | 1,451 | $24K |
| California State Teachers Retirement System | 0.00% | No change | 1,325 | $22K |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +14.5% | 1,226 | $20K |
| BNP Paribas Financial Markets | 0.00% | Reduce -57.3% | 1,094 | $18K |
| Mechanics Financial Corp | 0.01% | New | 813 | $13K |
| Darwin Wealth Management, LLC | 0.00% | No change | 792 | $13K |
| Parallel Advisors, LLC | 0.00% | Add +102.8% | 730 | $12K |
| Lazard Asset Management LLC | 0.00% | Reduce -86.8% | 777 | $12K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -52.2% | 661 | $11K |
| Amalgamated Bank | 0.00% | No change | 600 | $10K |
"% of holder's portfolio" is SPOK's weight in each manager's 13F, not the share of Spok Holdings Inc. the manager owns.