- Type / Class
- Equity / Common Stock
- Shares outstanding
- 20,597,466
- Total 13F shares
- 10,993,011
- Share change
- +791,975
- Total reported value
- $194,352,380
- Put/Call ratio
- 303%
- Price per share
- $17.68
- Number of holders
- 129
- Value change
- +$14,298,832
- Number of buys
- 74
- Number of sells
- 52
Quarterly Holders Quick Answers
What is CUSIP 84863T106?
CUSIP 84863T106 identifies SPOK - Spok Holdings, Inc - Common Stock in SEC institutional holdings data.
Need full ownership history?
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- Latest 13F filings for newly reported positions across managers.
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Recent filing periods for CUSIP 84863T106:
Top shareholders of SPOK - Spok Holdings, Inc - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
7.5%
|
1,542,396
|
$25,356,991 | — | 31 Mar 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13D/G
13F
|
Company |
5.1%
|
1,056,650
|
$18,681,572 | $0 | 07 Apr 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
5%
|
1,020,311
|
$16,773,913 | — | 31 Mar 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
3.4%
|
699,563
|
$11,500,607 | — | 31 Mar 2025 | |
| HighTower Advisors, LLC |
13F
|
Company |
2.5%
|
522,651
|
$8,592,389 | — | 31 Mar 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
2.5%
|
521,571
|
$8,574,624 | — | 31 Mar 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.4%
|
488,370
|
$8,030,289 | — | 31 Mar 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.1%
|
437,280
|
$7,188,883 | — | 31 Mar 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
1.8%
|
376,932
|
$6,195,000 | — | 31 Mar 2025 | |
| Foundry Partners, LLC |
13F
|
Company |
1.7%
|
359,925
|
$5,917,167 | — | 31 Mar 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.1%
|
216,782
|
$3,563,897 | — | 31 Mar 2025 | |
| Uniplan Investment Counsel, Inc. |
13F
|
Company |
1%
|
205,332
|
$3,375,662 | — | 31 Mar 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.97%
|
199,062
|
$3,272,579 | — | 31 Mar 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.92%
|
190,118
|
$3,125,545 | — | 31 Mar 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.82%
|
168,516
|
$2,770,419 | — | 31 Mar 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.75%
|
154,320
|
$2,537,021 | — | 31 Mar 2025 | |
| PRELUDE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.74%
|
152,885
|
$2,513,429 | — | 31 Mar 2025 | |
| Trexquant Investment LP |
13F
|
Company |
0.7%
|
143,346
|
$2,356,608 | — | 31 Mar 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
0.68%
|
140,562
|
$2,310,839 | — | 31 Mar 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.61%
|
125,088
|
$2,056,447 | — | 31 Mar 2025 | |
| North Star Investment Management Corp. |
13F
|
Company |
0.59%
|
122,000
|
$2,005,680 | — | 31 Mar 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.5%
|
103,107
|
$1,695,079 | — | 31 Mar 2025 | |
| Brian Oreilly |
3/4/5
|
Director |
—
mixed-class rows
|
102,255
mixed-class rows
|
$1,555,237 | — | 20 Jul 2021 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
0.45%
|
93,576
|
$1,538,389 | — | 31 Mar 2025 | |
| PRUDENTIAL FINANCIAL INC |
13F
|
Company |
0.41%
|
84,060
|
$1,381,946 | — | 31 Mar 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.39%
|
81,345
|
$1,337,312 | — | 31 Mar 2025 | |
| Matthew Oristano |
3/4/5
|
Director |
—
class O/S missing
|
82,340
|
$1,274,623 | — | 26 Jul 2022 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.32%
|
66,300
|
$1,089,972 | — | 31 Mar 2025 | |
| Royce Yudkoff |
3/4/5
|
Director |
—
class O/S missing
|
68,125
|
$1,054,575 | — | 26 Jul 2022 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.31%
|
63,830
|
$1,049,365 | — | 31 Mar 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.27%
|
55,314
|
$909,362 | — | 31 Mar 2025 | |
| Hennion & Walsh Asset Management, Inc. |
13F
|
Company |
0.26%
|
54,061
|
$888,763 | — | 31 Mar 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.26%
|
53,257
|
$875,545 | — | 31 Mar 2025 | |
| Keebeck Wealth Management |
13F
|
Company |
0.24%
|
50,000
|
$822,000 | — | 31 Mar 2025 | |
| Inspire Investing, LLC |
13F
|
Company |
0.24%
|
48,600
|
$798,984 | — | 31 Mar 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.24%
|
48,503
|
$797,389 | — | 31 Mar 2025 | |
| Nathaniel Blair Butterfield |
3/4/5
|
Director |
—
class O/S missing
|
40,550
|
$627,714 | — | 26 Jul 2022 | |
| Invesco Ltd. |
13F
|
Company |
0.18%
|
38,094
|
$626,265 | — | 31 Mar 2025 | |
| Cubist Systematic Strategies, LLC |
13F
|
Company |
0.18%
|
36,604
|
$601,770 | — | 31 Mar 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
0.17%
|
34,097
|
$560,555 | — | 31 Mar 2025 | |
| PANAGORA ASSET MANAGEMENT INC |
13F
|
Company |
0.16%
|
33,863
|
$556,708 | — | 31 Mar 2025 | |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM |
13F
|
Company |
0.16%
|
33,473
|
$550,296 | — | 31 Mar 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.16%
|
33,032
|
$543,036 | — | 31 Mar 2025 | |
| Stacia Hylton |
3/4/5
|
Director |
—
class O/S missing
|
33,359
|
$516,397 | — | 26 Jul 2022 | |
| UBS Group AG |
13F
|
Company |
0.15%
|
30,836
|
$506,944 | — | 31 Mar 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.15%
|
30,779
|
$506,007 | — | 31 Mar 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.14%
|
28,394
|
$466,798 | — | 31 Mar 2025 | |
| LOS ANGELES CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.14%
|
28,350
|
$466,074 | — | 31 Mar 2025 | |
| Man Group plc |
13F
|
Company |
0.13%
|
27,244
|
$447,891 | — | 31 Mar 2025 | |
| Engineers Gate Manager LP |
13F
|
Company |
0.13%
|
26,906
|
$442,335 | — | 31 Mar 2025 |
Institutional Holders of Spok Holdings, Inc - Common Stock (SPOK) as of Q2 2025
As of 30 Jun 2025,
Spok Holdings, Inc - Common Stock (SPOK) was held by
129 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
10,993,011 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, RENAISSANCE TECHNOLOGIES LLC, DIMENSIONAL FUND ADVISORS LP, GOLDMAN SACHS GROUP INC, GEODE CAPITAL MANAGEMENT, LLC, HighTower Advisors, LLC, STATE STREET CORP, ACADIAN ASSET MANAGEMENT LLC, and CSM Advisors, LLC.
This page lists
129
institutional shareholders reporting positions in this security
for the Q2 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
124
Q2 2025 holders
129
Holder diff
5
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 Value $ | Q2 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.