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Spok Holdings

Name Holding Trade Value Shares
Change
Change in
Stake
Connor, Clark & Lunn Investment Management (CC&L)
26
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$391K +$56.1K +7,705 +14%
State Street
27
State Street
Massachusetts
$372K
PCM
28
Prelude Capital Management
New York
$370K +$678K +93,155 +492%
Marshall Wace
29
Marshall Wace
United Kingdom
$348K +$302K +41,559 +304%
Goldman Sachs
30
Goldman Sachs
New York
$346K -$241K -33,154 -38%
Invesco
31
Invesco
Georgia
$314K +$65.4K +8,985 +22%
EGM
32
Engineers Gate Manager
New York
$314K +$67K +9,212 +23%
Citadel Advisors
33
Citadel Advisors
Florida
$259K +$9.96K +1,369 +3%
William Blair & Company
34
William Blair & Company
Illinois
$251K -$23.3K -3,200 -7%
Two Sigma Advisers
35
Two Sigma Advisers
New York
$238K +$23.3K +3,200 +9%
Barclays
36
Barclays
United Kingdom
$222K +$23.3K +3,208 +10%
Bank of America
37
Bank of America
North Carolina
$192K +$75.7K +10,403 +52%
BCM
38
BCK Capital Management
Connecticut
$191K -$438K -60,226 -67%
Nuveen
39
Nuveen
North Carolina
$164K
Royal Bank of Canada
40
Royal Bank of Canada
Ontario, Canada
$142K
Allspring Global Investments
41
Allspring Global Investments
North Carolina
$142K +$61.1K +8,400 +59%
RC
42
RBF Capital
California
$126K
Qube Research & Technologies (QRT)
43
Qube Research & Technologies (QRT)
United Kingdom
$95K +$109K +15,026 New
PCA
44
Personal Capital Advisors
California
$87K
JF
45
Jump Financial
Illinois
$85K +$98.3K +13,500 New
D.E. Shaw & Co
46
D.E. Shaw & Co
New York
$84K -$17.9K -2,464 -16%
TAM
47
Tocqueville Asset Management
New York
$66K
Charles Schwab
48
Charles Schwab
California
$64K +$73K +10,025 New
Osaic Holdings
49
Osaic Holdings
Arizona
$55K
Simplex Trading
50
Simplex Trading
Illinois
$43K +$6.71K +922 +16%