Spok Holdings, Inc (NASDAQ:SPOK) showed up in the 13F filings of 137 institutional investors as of March 2026.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Mar, 2026 | 1,676,227 | -123,322 | -6.85% | $18,270,870.00 |
| RENAISSANCE TECHNOLOGIES LLC | 31 Mar, 2026 | 1,261,579 | 15,000 | 1.20% | $13,751,211.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 859,530 | 859,530 | 0.00% | $9,368,877.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 715,869 | 12,043 | 1.71% | $7,803,828.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 545,718 | -52,834 | -8.83% | $5,949,681.00 |
| State Street Corp | 31 Mar, 2026 | 461,790 | 14,871 | 3.33% | $5,033,511.00 |
| HighTower Advisors, LLC | 31 Mar, 2026 | 381,815 | -560 | -0.15% | $4,161,787.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 265,028 | 265,028 | 0.00% | $2,888,805.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 219,581 | -505,361 | -69.71% | $2,393,436.00 |
| Bank of New York Mellon Corp | 31 Mar, 2026 | 217,803 | 4,987 | 2.34% | $2,374,054.00 |
| Northern Trust Corp | 31 Mar, 2026 | 216,543 | -551 | -0.25% | $2,360,318.00 |
| CSM Advisors, LLC | 31 Mar, 2026 | 213,130 | -49,815 | -18.95% | $2,323.00 |
| Uniplan Investment Counsel, Inc. | 31 Mar, 2026 | 209,602 | -105,219 | -33.42% | $2,284,671.00 |
| Qube Research & Technologies Ltd | 31 Mar, 2026 | 172,057 | -6,035 | -3.39% | $1,875,421.00 |
| Morgan Stanley | 31 Mar, 2026 | 159,826 | -17,867 | -10.05% | $1,742,115.00 |
| Connor, Clark & Lunn Investment Management Ltd. | 31 Mar, 2026 | 144,851 | -52,014 | -26.42% | $1,578,876.00 |
| VANGUARD FIDUCIARY TRUST CO | 31 Mar, 2026 | 129,248 | 129,248 | 0.00% | $1,408,803.00 |
| Trexquant Investment LP | 31 Mar, 2026 | 128,856 | -41,797 | -24.49% | $1,404,530.00 |
| North Star Investment Management Corp. | 31 Mar, 2026 | 122,000 | 0 | 0.00% | $1,329,800.00 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 31 Mar, 2026 | 116,810 | -2,157 | -1.81% | $1,273,229.00 |