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Spok Holdings
SPOK

Overview Fund Activity

124 hedge funds and large institutions have $174M invested in Spok Holdings in 2025 Q1 according to their latest regulatory filings, with 23 funds opening new positions, 41 increasing their positions, 39 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
124
Holders Change
+9
Holders Change %
+7.83%
% of All Funds
1.68%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
23
Increased
41
Reduced
39
Closed
12
Calls
$898K
Puts
$52K
Net Calls
+$846K
Net Calls Change
+$358K

Top Buyers

1
BlackRock
BlackRock
New York
+$2.63M
2
Goldman Sachs
Goldman Sachs
New York
+$2.15M
3
Citadel Advisors
Citadel Advisors
Florida
+$2.03M
4
Two Sigma Investments
Two Sigma Investments
New York
+$1.05M
5
Marshall Wace
Marshall Wace
United Kingdom
+$876K

Top Sellers

1
HighTower Advisors
HighTower Advisors
Illinois
-$2.37M
2
TC
Truvestments Capital
Florida
-$1.79M
3
MF
Magnetar Financial
Illinois
-$647K
4
Prudential Financial
Prudential Financial
New Jersey
-$493K
5
Vanguard Group
Vanguard Group
Pennsylvania
-$458K
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$25.4M +$2.63M +160,277 +12%
Vanguard Group
2
Vanguard Group
Pennsylvania
$16.8M -$458K -27,850 -3%
Renaissance Technologies
3
Renaissance Technologies
New York
$16.8M +$720K +43,800 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$11.5M -$136K -8,285 -1%
HighTower Advisors
5
HighTower Advisors
Illinois
$8.59M -$2.37M -144,062 -22%
Goldman Sachs
6
Goldman Sachs
New York
$8.57M +$2.15M +130,478 +33%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$8.03M -$428K -26,057 -5%
State Street
8
State Street
Massachusetts
$7.19M -$21.6K -1,314 -0.3%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$6.2M +$120K +7,301 +2%
FP
10
Foundry Partners
Minnesota
$5.92M -$34.8K -2,115 -0.6%
Northern Trust
11
Northern Trust
Illinois
$3.56M +$160K +9,714 +5%
UIC
12
Uniplan Investment Counsel
Wisconsin
$3.38M +$28.7K +1,745 +0.9%
JPMorgan Chase & Co
13
JPMorgan Chase & Co
New York
$3.27M -$239K -14,513 -7%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$3.13M -$162K -9,871 -5%
Morgan Stanley
15
Morgan Stanley
New York
$2.77M +$166K +10,116 +6%
Citadel Advisors
16
Citadel Advisors
Florida
$2.54M +$2.03M +123,508 +401%
PCM
17
Prelude Capital Management
New York
$2.51M +$62.5K +3,800 +3%
TI
18
Trexquant Investment
Connecticut
$2.36M +$606K +36,879 +35%
Connor, Clark & Lunn Investment Management (CC&L)
19
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$2.31M +$581K +35,321 +34%
Qube Research & Technologies (QRT)
20
Qube Research & Technologies (QRT)
United Kingdom
$2.06M +$875K +53,208 +74%
NSIM
21
North Star Investment Management
Illinois
$2.01M – – –
Allspring Global Investments
22
Allspring Global Investments
North Carolina
$1.7M -$130K -7,890 -7%
Jacobs Levy Equity Management
23
Jacobs Levy Equity Management
New Jersey
$1.54M +$255K +15,484 +20%
Prudential Financial
24
Prudential Financial
New Jersey
$1.38M -$493K -29,980 -26%
NL
25
Nuveen LLC
North Carolina
$1.34M +$1.34M +81,345 New
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