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Spok Holdings

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$18.3M -$1.57M -123,322 -7%
Renaissance Technologies
2
Renaissance Technologies
New York
$13.8M +$191K +15,000 +1%
Vanguard Capital Management
3
Vanguard Capital Management
Pennsylvania
$9.37M +$10.9M +859,530 New
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$7.8M +$153K +12,043 +2%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$5.95M -$672K -52,834 -9%
State Street
6
State Street
Massachusetts
$5.03M +$189K +14,871 +3%
HighTower Advisors
7
HighTower Advisors
Illinois
$4.16M -$7.13K -560 -0.1%
Vanguard Portfolio Management
8
Vanguard Portfolio Management
Pennsylvania
$2.89M +$3.37M +265,028 New
Goldman Sachs
9
Goldman Sachs
New York
$2.39M -$1.82M -142,890 -39%
Bank of New York Mellon
10
Bank of New York Mellon
New York
$2.37M +$63.5K +4,987 +2%
Northern Trust
11
Northern Trust
Illinois
$2.36M -$7.01K -551 -0.3%
CA
12
CSM Advisors
Pennsylvania
$2.32M -$634K -49,815 -19%
UIC
13
Uniplan Investment Counsel
Wisconsin
$2.28M +$619K +48,605 +30%
Qube Research & Technologies (QRT)
14
Qube Research & Technologies (QRT)
United Kingdom
$1.88M -$76.8K -6,035 -3%
Morgan Stanley
15
Morgan Stanley
New York
$1.74M -$227K -17,867 -10%
Connor, Clark & Lunn Investment Management (CC&L)
16
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.58M -$662K -52,014 -26%
Vanguard Fiduciary Trust
17
Vanguard Fiduciary Trust
Pennsylvania
$1.41M +$1.64M +129,248 New
TI
18
Trexquant Investment
Connecticut
$1.4M -$532K -41,797 -24%
NSIM
19
North Star Investment Management
Illinois
$1.33M
Jacobs Levy Equity Management
20
Jacobs Levy Equity Management
New Jersey
$1.27M -$27.4K -2,157 -2%
Marshall Wace
21
Marshall Wace
United Kingdom
$1.23M +$1.44M +112,789 New
UCFA
22
United Capital Financial Advisors
Texas
$1.14M +$1.33M +104,723 New
Point72 Asset Management
23
Point72 Asset Management
Connecticut
$977K +$902K +70,902 +379%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$975K +$240K +18,823 +27%
Jane Street
25
Jane Street
New York
$943K +$926K +72,760 +529%