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Spok Holdings
SPOK

Overview Fund Activity

129 hedge funds and large institutions have $194M invested in Spok Holdings in 2025 Q2 according to their latest regulatory filings, with 24 funds opening new positions, 52 increasing their positions, 35 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
129
Holders Change
+4
Holders Change %
+3.2%
% of All Funds
1.73%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
24
Increased
52
Reduced
35
Closed
19
Calls
$622K
Puts
$1.19M
Net Calls
-$566K
Net Calls Change
-$1.41M

Top Buyers

1
CA
CSM Advisors
Pennsylvania
$6.18M
2
BlackRock
BlackRock
New York
$30.5M
3
Vanguard Group
Vanguard Group
Pennsylvania
$20.3M
4
Lazard Asset Management
Lazard Asset Management
New York
$1.17M
5
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$3.52M

Top Sellers

1
Allspring Global Investments
Allspring Global Investments
North Carolina
$0
2
Citadel Advisors
Citadel Advisors
Florida
$1.16M
3
HighTower Advisors
HighTower Advisors
Illinois
$8.01M
4
Prudential Financial
Prudential Financial
New Jersey
$878K
5
TI
Trexquant Investment
Connecticut
$1.97M
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$30.5M +$3.19M +180,478 +12%
Vanguard Group
2
Vanguard Group
Pennsylvania
$20.3M +$2.27M +128,225 +13%
Renaissance Technologies
3
Renaissance Technologies
New York
$18.7M +$658K +37,200 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$12.6M +$200K +11,327 +2%
Goldman Sachs
5
Goldman Sachs
New York
$9.37M +$147K +8,315 +2%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$9.17M +$530K +29,957 +6%
HighTower Advisors
7
HighTower Advisors
Illinois
$8.01M -$1.23M -69,842 -13%
State Street
8
State Street
Massachusetts
$7.87M +$140K +7,897 +2%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$6.89M +$231K +13,077 +3%
CA
10
CSM Advisors
Pennsylvania
$6.18M +$6.18M +349,185 New
Northern Trust
11
Northern Trust
Illinois
$4.3M +$464K +26,221 +12%
JPMorgan Chase & Co
12
JPMorgan Chase & Co
New York
$3.96M +$442K +24,991 +13%
Connor, Clark & Lunn Investment Management (CC&L)
13
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$3.52M +$1.03M +58,416 +42%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$3.46M +$95.3K +5,389 +3%
UIC
15
Uniplan Investment Counsel
Wisconsin
$3.33M -$302K -17,104 -8%
Morgan Stanley
16
Morgan Stanley
New York
$2.69M -$285K -16,093 -10%
PCM
17
Prelude Capital Management
New York
$2.62M -$83.1K -4,700 -3%
Qube Research & Technologies (QRT)
18
Qube Research & Technologies (QRT)
United Kingdom
$2.58M +$367K +20,730 +17%
NSIM
19
North Star Investment Management
Illinois
$2.16M – – –
TI
20
Trexquant Investment
Connecticut
$1.97M -$563K -31,865 -22%
Two Sigma Investments
21
Two Sigma Investments
New York
$1.92M +$795K +44,939 +70%
Two Sigma Advisers
22
Two Sigma Advisers
New York
$1.39M +$216K +12,200 +18%
NL
23
Nuveen LLC
North Carolina
$1.29M -$151K -8,527 -10%
Lazard Asset Management
24
Lazard Asset Management
New York
$1.17M +$1.16M +65,484 +8,428%
Citadel Advisors
25
Citadel Advisors
Florida
$1.16M -$1.57M -88,903 -58%
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