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Spok Holdings

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$32.4M +$2.03M +177,491 +6%
Renaissance Technologies
2
Renaissance Technologies
New York
$16M -$344K -30,031 -2%
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$15.6M -$513K -44,808 -3%
Vanguard Group
4
Vanguard Group
Pennsylvania
$13.4M +$19.2K +1,679 +0.1%
State Street
5
State Street
Massachusetts
$5.94M -$537K -46,960 -8%
DRZID
6
DePrince Race & Zollo Inc (DRZ)
Florida
$5.52M -$82.3K -7,192 -1%
JP Morgan Chase
7
JP Morgan Chase
New York
$4.93M -$396K -34,605 -7%
Bank of New York Mellon
8
Bank of New York Mellon
New York
$4.28M -$85.4K -7,461 -2%
TAM
9
Tocqueville Asset Management
New York
$4.21M +$578K +50,500 +14%
FP
10
Foundry Partners
Minnesota
$3.28M -$119K -10,365 -3%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$3.16M +$102K +8,927 +3%
Grantham, Mayo, Van Otterloo & Co (GMO)
12
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$2.45M +$87K +7,600 +3%
Invesco
13
Invesco
Georgia
$2.45M +$420K +36,747 +19%
Northern Trust
14
Northern Trust
Illinois
$2.33M -$373K -32,576 -13%
Nuveen
15
Nuveen
North Carolina
$2.07M -$80.9K -7,071 -3%
Arrowstreet Capital
16
Arrowstreet Capital
Massachusetts
$1.44M -$193K -16,897 -11%
PPA
17
Parametric Portfolio Associates
Washington
$1.38M +$185K +16,145 +14%
William Blair & Company
18
William Blair & Company
Illinois
$1.33M +$867K +75,728 +149%
Charles Schwab
19
Charles Schwab
California
$1.33M -$125K -10,913 -8%
Principal Financial Group
20
Principal Financial Group
Iowa
$1.28M +$19.9K +1,740 +1%
BCM
21
Bridgeway Capital Management
Texas
$1.03M +$286K +25,000 +34%
Jacobs Levy Equity Management
22
Jacobs Levy Equity Management
New Jersey
$942K +$413K +36,067 +67%
Bank of America
23
Bank of America
North Carolina
$926K +$202K +17,617 +25%
Ameriprise
24
Ameriprise
Minnesota
$913K +$65.5K +5,727 +7%
Morgan Stanley
25
Morgan Stanley
New York
$845K -$90.9K -7,947 -9%