Latest Period
Q1 2026
Security Snapshot
Spok Holdings, Inc - Common Stock (SPOK) Institutional Ownership
CUSIP: 84863T106
13F Institutional Holders and Ownership History from Q2 2014 to Q1 2026
Institutions Reporting
138
Shares (Excl. Options)
10,489,604
Price
$10.90
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- Security type / class
- Equity / Common Stock
- Symbol
- SPOK on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 10,489,604
- Total 13F value
- $114,429,462
- Portfolio coverage rank
- 0%
- Share change
- -594,745
- Value change
- -$7,850,463
- Number of holders
- 138
- Shares outstanding
- 20,597,466
- SEC-reported price per share
- $10.96
- Insider filing price
- $10.96
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- SPOK - Spok Holdings, Inc - Common Stock is tracked under CUSIP 84863T106.
- 138 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 133 to 138 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $145,830,785 to $114,429,462.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 138 institutions filings for Q1 2026.
Security key
84863T106
Latest holder period
Q1 2026
13F holders
138
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
SPOK full holder history
Spok Holdings, Inc SEC filings
Spok Holdings, Inc company facts
Spok Holdings, Inc insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 84863T106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
SPOK
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 5.1% | $18,681,572 | 1,056,650 | Renaissance Technologies LLC | 07 Apr 2025 |
As of 31 Mar 2026, 138 institutional investors reported holding 10,489,604 shares of Spok Holdings, Inc - Common Stock (SPOK). This represents 51% of the company’s total 20,597,466 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
42%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.1% | 1,676,227 | -6.9% | 0% | $18,270,870 |
| RENAISSANCE TECHNOLOGIES LLC | 6.1% | 1,261,579 | +1.2% | 0.02% | $13,751,211 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2% | 859,530 | 0% | 0% | $9,368,877 |
| DIMENSIONAL FUND ADVISORS LP | 3.5% | 715,869 | +1.7% | 0% | $7,803,828 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 545,718 | -8.8% | 0% | $5,949,681 |
| STATE STREET CORP | 2.2% | 461,790 | +3.3% | 0% | $5,033,511 |
| HighTower Advisors, LLC | 1.9% | 381,815 | -0.15% | 0% | $4,161,787 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.3% | 265,028 | 0% | 0% | $2,888,805 |
| GOLDMAN SACHS GROUP INC | 1.1% | 219,581 | -39% | 0% | $2,393,436 |
| Bank of New York Mellon Corp | 1.1% | 217,803 | +2.3% | 0% | $2,374,054 |
| NORTHERN TRUST CORP | 1.1% | 216,543 | -0.25% | 0% | $2,360,318 |
| CSM Advisors, LLC | 1% | 213,130 | -19% | 0.06% | $2,323,000 |
| Uniplan Investment Counsel, Inc. | 1% | 209,602 | +30% | 0.23% | $2,284,671 |
| Qube Research & Technologies Ltd | 0.84% | 172,057 | -3.4% | 0% | $1,875,421 |
| MORGAN STANLEY | 0.78% | 159,826 | -10% | 0% | $1,742,115 |
| Connor, Clark & Lunn Investment Management Ltd. | 0.7% | 144,851 | -26% | 0% | $1,578,876 |
| VANGUARD FIDUCIARY TRUST CO | 0.63% | 129,248 | 0% | 0% | $1,408,803 |
| Trexquant Investment LP | 0.63% | 128,856 | -24% | 0.01% | $1,404,530 |
| North Star Investment Management Corp. | 0.59% | 122,000 | 0% | 0.08% | $1,329,800 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 0.57% | 116,810 | -1.8% | 0.01% | $1,273,229 |
| MARSHALL WACE, LLP | 0.55% | 112,789 | 0% | $1,229,400 | |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | 0.51% | 104,723 | 0.01% | $1,141,481 | |
| Point72 Asset Management, L.P. | 0.44% | 89,627 | +379% | 0% | $976,934 |
| D. E. Shaw & Co., Inc. | 0.43% | 89,451 | +27% | 0% | $975,015 |
| JANE STREET GROUP, LLC | 0.42% | 86,524 | +529% | 0% | $943,112 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
48
Latest
Q1 2026
Rows shown
1-25 of 48
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 10,489,604 | $114,429,462 | -$7,850,463 | $10.90 | 138 |
| 2025 Q4 | 11,050,991 | $145,830,785 | -$6,899,460 | $13.19 | 133 |
| 2025 Q3 | 11,459,241 | $197,674,734 | +$7,683,756 | $17.25 | 142 |
| 2025 Q2 | 10,993,011 | $194,352,380 | +$14,298,832 | $17.68 | 129 |
| 2025 Q1 | 10,555,879 | $173,530,647 | +$7,994,149 | $16.44 | 124 |
| 2024 Q4 | 10,101,442 | $162,130,804 | +$263,915 | $16.05 | 115 |
| 2024 Q3 | 10,094,402 | $152,047,921 | -$932,180 | $15.06 | 109 |
| 2024 Q2 | 10,179,480 | $150,782,451 | +$751,732 | $14.81 | 114 |
| 2024 Q1 | 10,048,973 | $160,289,295 | -$2,417,995 | $15.95 | 110 |
| 2023 Q4 | 10,218,087 | $158,173,518 | +$3,309,815 | $15.48 | 107 |
| 2023 Q3 | 10,025,770 | $143,089,529 | -$1,923,068 | $14.27 | 97 |
| 2023 Q2 | 10,185,160 | $135,386,811 | +$9,262,997 | $13.29 | 87 |
| 2023 Q1 | 9,660,849 | $97,880,446 | -$2,050,778 | $10.13 | 82 |
| 2022 Q4 | 10,093,279 | $82,642,498 | +$9,298,388 | $8.19 | 77 |
| 2022 Q3 | 8,931,950 | $68,237,764 | -$3,990,562 | $7.64 | 57 |
| 2022 Q2 | 9,712,402 | $61,180,000 | -$11,249,120 | $6.30 | 55 |
| 2022 Q1 | 11,295,410 | $89,403,000 | -$2,665,500 | $7.98 | 59 |
| 2021 Q4 | 11,489,550 | $107,184,000 | -$3,437,386 | $9.33 | 66 |
| 2021 Q3 | 11,679,712 | $119,346,233 | -$17,942,222 | $10.22 | 80 |
| 2021 Q2 | 13,512,363 | $129,959,490 | -$4,203,854 | $9.62 | 96 |
| 2021 Q1 | 13,907,824 | $145,895,518 | -$4,451,225 | $10.49 | 96 |
| 2020 Q4 | 14,304,376 | $159,241,639 | -$2,211,685 | $11.13 | 99 |
| 2020 Q3 | 14,658,745 | $139,246,609 | -$1,115,059 | $9.51 | 106 |
| 2020 Q2 | 14,746,162 | $137,869,212 | -$1,477,198 | $9.35 | 98 |
| 2020 Q1 | 14,908,703 | $159,372,987 | -$2,811,356 | $10.69 | 104 |