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Spok Holdings

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$17.6M +$468K +42,992 +3%
Renaissance Technologies
2
Renaissance Technologies
New York
$11.8M -$1.23M -113,000 -9%
Vanguard Capital Management
3
Vanguard Capital Management
Pennsylvania
$8.93M +$140K +12,829 +1%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$7.35M +$19K +1,747 +0.2%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$6.1M +$545K +50,124 +9%
State Street
6
State Street
Massachusetts
$4.83M +$107K +9,794 +2%
HighTower Advisors
7
HighTower Advisors
Illinois
$3.48M -$456K -41,923 -11%
Qube Research & Technologies (QRT)
8
Qube Research & Technologies (QRT)
United Kingdom
$2.95M +$1.26M +115,560 +67%
Goldman Sachs
9
Goldman Sachs
New York
$2.89M +$679K +62,399 +28%
Vanguard Portfolio Management
10
Vanguard Portfolio Management
Pennsylvania
$2.8M +$89.8K +8,250 +3%
Bank of New York Mellon
11
Bank of New York Mellon
New York
$2.4M +$177K +16,309 +7%
Northern Trust
12
Northern Trust
Illinois
$2.28M +$69.1K +6,352 +3%
UIC
13
Uniplan Investment Counsel
Wisconsin
$2.21M +$67.1K +6,162 +3%
CA
14
CSM Advisors
Pennsylvania
$2.18M -$2.39K -220 -0.1%
UCFA
15
United Capital Financial Advisors
Texas
$1.99M +$980K +90,092 +86%
Citadel Advisors
16
Citadel Advisors
Florida
$1.88M +$1.8M +165,672 +932%
Morgan Stanley
17
Morgan Stanley
New York
$1.71M +$73.4K +6,749 +4%
Jacobs Levy Equity Management
18
Jacobs Levy Equity Management
New Jersey
$1.64M +$473K +43,502 +37%
GCP
19
GSA Capital Partners
United Kingdom
$1.54M +$700K +64,300 +75%
Vanguard Fiduciary Trust
20
Vanguard Fiduciary Trust
Pennsylvania
$1.4M +$83.2K +7,650 +6%
D.E. Shaw & Co
21
D.E. Shaw & Co
New York
$1.33M +$443K +40,712 +46%
Connor, Clark & Lunn Investment Management (CC&L)
22
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.1M -$407K -37,376 -26%
PAM
23
Panagora Asset Management
Massachusetts
$953K +$160K +14,735 +19%
NSIM
24
North Star Investment Management
Illinois
$922K -$348K -32,000 -26%
Fidelity Investments
25
Fidelity Investments
Massachusetts
$913K +$807K +74,132 +493%