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Similarweb
SMWB

Overview Fund Activity

109 hedge funds and large institutions have $371M invested in Similarweb in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 32 increasing their positions, 40 reducing their positions, and 26 closing their positions.

Holders
109
Holders Change
-3
Holders Change %
-2.68%
% of All Funds
1.48%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.07%
New
25
Increased
32
Reduced
40
Closed
26
Calls
$9.35M
Puts
$6.27M
Net Calls
+$3.08M
Net Calls Change
-$10.8M

Top Buyers

1
CCPM
1
Cooper Creek Partners Management
New York
$9.87M
2
MIFH
2
Migdal Insurance & Financial Holdings
Israel
$22.8M
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$7.36M
4
T. Rowe Price Investment Management
4
T. Rowe Price Investment Management
Maryland
$11.7M
5
American Century Companies
5
American Century Companies
Missouri
$6.01M

Top Sellers

1
NCGI
1
Next Century Growth Investors
Minnesota
$0
2
Walleye Capital
2
Walleye Capital
New York
$0
3
Acadian Asset Management
3
Acadian Asset Management
Massachusetts
$1.53M
4
Alyeska Investment Group
4
Alyeska Investment Group
Illinois
$0
5
SSA
5
Schonfeld Strategic Advisors
New York
$9.19M
Name Market Value Shares Shares
Change 		Shares
Change %
N
1
Naspers
South Africa
$92.4M 11,173,265 – –
MIFH
2
Migdal Insurance & Financial Holdings
Israel
$22.8M 2,762,557 +1,050,000 +61%
UM
3
Ulysses Management
New York
$22.7M 2,748,708 +465,480 +20%
PF
4
Phoenix Financial
Israel
$21.4M 2,585,985 +63,978 +3%
MMH
5
Menora Mivtachim Holdings
Israel
$18.6M 2,246,470 +560,000 +33%
Jennison Associates
6
Jennison Associates
New York
$15.6M 1,892,110 +53,055 +3%
T. Rowe Price Investment Management
7
T. Rowe Price Investment Management
Maryland
$11.7M 1,410,826 +736,004 +109%
YDMI
8
Y.D. More Investments
Israel
$11.6M 1,399,863 -49,771 -3%
SGM
9
Scalar Gauge Management
Texas
$10M 1,213,199 +97,421 +9%
CCPM
10
Cooper Creek Partners Management
New York
$9.87M 1,193,895 +1,193,895 New
SSA
11
Schonfeld Strategic Advisors
New York
$9.19M 1,111,388 -479,003 -30%
SST
12
S Squared Technology
New York
$8.27M 1,000,491 -55,800 -5%
Wellington Management Group
13
Wellington Management Group
Massachusetts
$7.36M 889,363 +889,363 New
AFT
14
Alpha Family Trust
California
$7.04M 851,669 -283,890 -25%
BlackRock
15
BlackRock
New York
$6.87M 831,068 +46,125 +6%
CP
16
CenterBook Partners
Connecticut
$6.68M 807,696 +609,365 +307%
Connor, Clark & Lunn Investment Management (CC&L)
17
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$6.67M 806,174 +128,709 +19%
American Century Companies
18
American Century Companies
Missouri
$6.01M 727,275 +727,275 New
NL
19
Nuveen LLC
North Carolina
$5.98M 722,971 +722,971 New
Citadel Advisors
20
Citadel Advisors
Florida
$4.14M 500,000 +242,876 +94%
Victory Capital Management
21
Victory Capital Management
Texas
$4.08M 493,370 +63,588 +15%
PCM
22
Portolan Capital Management
Massachusetts
$3.06M 370,191 +87,288 +31%
Marshall Wace
23
Marshall Wace
United Kingdom
$2.97M 359,286 +550 +0.2%
Morgan Stanley
24
Morgan Stanley
New York
$2.81M 340,377 +21,358 +7%
CI
25
Ceera Investments
Texas
$2.64M 319,027 +59,200 +23%
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