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Spok Holdings

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$72.1M +$73.5M +3,790,139 +87,816%
Vanguard Group
2
Vanguard Group
Pennsylvania
$45.3M +$3.6M +185,356 +8%
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$30.6M +$2.35M +121,366 +8%
Renaissance Technologies
4
Renaissance Technologies
New York
$29.5M -$433K -22,300 -1%
PAIM
5
Punch & Associates Investment Management
Minnesota
$17.1M +$224K +11,550 +1%
State Street
6
State Street
Massachusetts
$12.3M +$476K +24,537 +4%
NI
7
Numeric Investors
Massachusetts
$10.7M +$1.32M +68,058 +14%
Bank of New York Mellon
8
Bank of New York Mellon
New York
$10.4M -$2.89K -149 -0%
OSAM
9
O'Shaughnessy Asset Management
Connecticut
$5.79M -$895K -46,166 -13%
Morgan Stanley
10
Morgan Stanley
New York
$5.5M +$391K +20,136 +7%
American Century Companies
11
American Century Companies
Missouri
$5.43M +$661K +34,097 +14%
Northern Trust
12
Northern Trust
Illinois
$5.29M +$81.9K +4,222 +2%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$5.08M +$483K +24,875 +10%
BCM
14
Bridgeway Capital Management
Texas
$4.37M +$4.85K +250 +0.1%
LSV Asset Management
15
LSV Asset Management
Illinois
$3.73M -$978K -50,416 -20%
Invesco
16
Invesco
Georgia
$3.46M +$867K +44,675 +33%
Principal Financial Group
17
Principal Financial Group
Iowa
$3.13M +$105K +5,434 +3%
HighTower Advisors
18
HighTower Advisors
Illinois
$2.94M +$73.7K +3,800 +3%
Ameriprise
19
Ameriprise
Minnesota
$2.62M +$120K +6,199 +5%
Charles Schwab
20
Charles Schwab
California
$2.61M +$277K +14,266 +12%
Wells Fargo
21
Wells Fargo
California
$2.51M -$287K -14,809 -10%
AllianceBernstein
22
AllianceBernstein
Tennessee
$2.36M +$342K +17,640 +17%
PPA
23
Parametric Portfolio Associates
Washington
$2.27M +$115K +5,915 +5%
CS
24
Credit Suisse
Switzerland
$2.13M +$134K +6,932 +7%
JP Morgan Chase
25
JP Morgan Chase
New York
$1.98M -$270K -13,929 -12%