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Spok Holdings

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$20M -$10.7M -1,004,552 -33%
Renaissance Technologies
2
Renaissance Technologies
New York
$14.6M -$44.8K -4,191 -0.3%
DRZID
3
DePrince Race & Zollo Inc (DRZ)
Florida
$13.9M +$9.78M +915,916 +174%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$13.8M -$609K -57,068 -4%
Invesco
5
Invesco
Georgia
$10M +$8.62M +806,927 +346%
Vanguard Group
6
Vanguard Group
Pennsylvania
$9.4M -$3.19M -299,025 -23%
TAM
7
Tocqueville Asset Management
New York
$3.86M
Bank of New York Mellon
8
Bank of New York Mellon
New York
$3.33M -$666K -62,353 -15%
State Street
9
State Street
Massachusetts
$3.21M -$2.49M -233,072 -41%
Millennium Management
10
Millennium Management
New York
$2.71M +$2.76M +258,666 +1,120%
Russell Investments Group
11
Russell Investments Group
United Kingdom
$2.7M +$3M +280,674 New
FP
12
Foundry Partners
Minnesota
$2.49M -$574K -53,730 -17%
Arrowstreet Capital
13
Arrowstreet Capital
Massachusetts
$2.05M +$812K +76,064 +55%
Geode Capital Management
14
Geode Capital Management
Massachusetts
$1.78M -$1.25M -116,790 -39%
Grantham, Mayo, Van Otterloo & Co (GMO)
15
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$1.67M -$640K -59,900 -26%
William Blair & Company
16
William Blair & Company
Illinois
$1.52M +$335K +31,328 +25%
JP Morgan Chase
17
JP Morgan Chase
New York
$1.31M -$3.57M -334,065 -71%
Principal Financial Group
18
Principal Financial Group
Iowa
$1.19M +$10.1K +950 +0.8%
Jacobs Levy Equity Management
19
Jacobs Levy Equity Management
New Jersey
$864K
Morgan Stanley
20
Morgan Stanley
New York
$833K +$65.3K +6,118 +8%
BCM
21
Bridgeway Capital Management
Texas
$831K -$128K -12,000 -12%
Citadel Advisors
22
Citadel Advisors
Florida
$819K +$671K +62,816 +282%
Northern Trust
23
Northern Trust
Illinois
$816K -$1.47M -137,256 -62%
Charles Schwab
24
Charles Schwab
California
$805K -$457K -42,841 -34%
Ameriprise
25
Ameriprise
Minnesota
$804K -$37K -3,468 -4%