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Spok Holdings
SPOK

Overview Fund Activity

128 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, 51 increasing their positions, 35 reducing their positions, and 19 closing their positions.

Holders
128
Holders Change
+3
Holders Change %
+2.4%
% of All Funds
1.72%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
24
Increased
51
Reduced
35
Closed
19
Calls
$237K
Puts
$907K
Net Calls
-$670K
Net Calls Change
-$1.52M

Top Buyers

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

Top Sellers

1
Allspring Global Investments
1
Allspring Global Investments
North Carolina
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$1.16M
3
HighTower Advisors
3
HighTower Advisors
Illinois
$8.01M
4
Prudential Financial
4
Prudential Financial
New Jersey
$878K
5
TI
5
Trexquant Investment
Connecticut
$1.97M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$30.5M 1,722,874 +180,478 +12%
Vanguard Group
2
Vanguard Group
Pennsylvania
$20.3M 1,148,536 +128,225 +13%
Renaissance Technologies
3
Renaissance Technologies
New York
$18.7M 1,056,650 +37,200 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$12.6M 710,890 +11,327 +2%
Goldman Sachs
5
Goldman Sachs
New York
$9.37M 529,886 +8,315 +2%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$9.17M 518,327 +29,957 +6%
HighTower Advisors
7
HighTower Advisors
Illinois
$8.01M 452,809 -69,842 -13%
State Street
8
State Street
Massachusetts
$7.87M 445,177 +7,897 +2%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$6.89M 390,009 +13,077 +3%
CA
10
CSM Advisors
Pennsylvania
$6.18M 349,185 +349,185 New
Northern Trust
11
Northern Trust
Illinois
$4.3M 243,003 +26,221 +12%
JPMorgan Chase & Co
12
JPMorgan Chase & Co
New York
$3.96M 224,053 +24,991 +13%
Connor, Clark & Lunn Investment Management (CC&L)
13
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$3.52M 198,978 +58,416 +42%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$3.46M 195,507 +5,389 +3%
UIC
15
Uniplan Investment Counsel
Wisconsin
$3.33M 188,228 -17,104 -8%
Morgan Stanley
16
Morgan Stanley
New York
$2.69M 152,423 -16,093 -10%
PCM
17
Prelude Capital Management
New York
$2.62M 148,185 -4,700 -3%
Qube Research & Technologies (QRT)
18
Qube Research & Technologies (QRT)
United Kingdom
$2.58M 145,818 +20,730 +17%
NSIM
19
North Star Investment Management
Illinois
$2.16M 122,000 – –
TI
20
Trexquant Investment
Connecticut
$1.97M 111,481 -31,865 -22%
Two Sigma Investments
21
Two Sigma Investments
New York
$1.92M 108,769 +44,939 +70%
Two Sigma Advisers
22
Two Sigma Advisers
New York
$1.39M 78,500 +12,200 +18%
NL
23
Nuveen LLC
North Carolina
$1.29M 72,818 -8,527 -10%
Lazard Asset Management
24
Lazard Asset Management
New York
$1.17M 66,261 +65,484 +8,428%
Citadel Advisors
25
Citadel Advisors
Florida
$1.16M 65,417 -88,903 -58%
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