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Kiniksa Pharmaceuticals
KNSA

Overview Fund Activity

187 hedge funds and large institutions have $1.1B invested in Kiniksa Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 48 funds opening new positions, 64 increasing their positions, 62 reducing their positions, and 33 closing their positions.

Holders
187
Holders Change
+12
Holders Change %
+6.86%
% of All Funds
2.51%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
48
Increased
64
Reduced
62
Closed
33
Calls
$8.22M
Puts
$33M
Net Calls
-$24.8M
Net Calls Change
-$24.9M

Top Buyers

1
Arrowstreet Capital
1
Arrowstreet Capital
Massachusetts
$20.3M
2
FFM
2
Fairmount Funds Management
Pennsylvania
$49.1M
3
Qube Research & Technologies (QRT)
3
Qube Research & Technologies (QRT)
United Kingdom
$24.6M
4
RCMNY
4
Rubric Capital Management (New York)
New York
$108M
5
CSS
5
Cubist Systematic Strategies
Connecticut
$18.2M

Top Sellers

1
BlackRock
1
BlackRock
New York
$19.4M
2
B
2
Braidwell
Connecticut
$30.5M
3
State Street
3
State Street
Massachusetts
$2.02M
4
NL
4
Nuveen LLC
North Carolina
$0
5
Geode Capital Management
5
Geode Capital Management
Massachusetts
$1.41M
Name Market Value Shares Shares
Change 		Shares
Change %
LTAS
51
Linden Thomas Advisory Services
North Carolina
$3.21M 116,115 -1,166 -1%
Wellington Management Group
52
Wellington Management Group
Massachusetts
$3.15M 113,990 +22,958 +25%
WAM
53
Weiss Asset Management
Massachusetts
$3.09M 111,710 +111,710 New
Franklin Resources
54
Franklin Resources
California
$3M 108,574 +41,632 +62%
EI
55
EAM Investors
California
$2.93M 105,747 +105,747 New
UBS AM
56
UBS AM
Illinois
$2.9M 104,705 +48,729 +87%
PP
57
PDT Partners
New York
$2.85M 102,886 +56,479 +122%
Fisher Asset Management
58
Fisher Asset Management
Washington
$2.83M 102,259 -41,992 -29%
SEI Investments
59
SEI Investments
Pennsylvania
$2.81M 101,496 +25,860 +34%
GC
60
Globeflex Capital
California
$2.45M 88,596 – –
Two Sigma Advisers
61
Two Sigma Advisers
New York
$2.36M 85,400 +85,400 New
Raymond James Financial
62
Raymond James Financial
Florida
$2.35M 84,915 -18,758 -18%
State of Wisconsin Investment Board
63
State of Wisconsin Investment Board
Wisconsin
$2.33M 84,067 -16,975 -17%
Marshall Wace
64
Marshall Wace
United Kingdom
$2.11M 76,347 +76,347 New
SCM
65
Silverarc Capital Management
Massachusetts
$2.1M 75,959 -12,256 -14%
State Street
66
State Street
Massachusetts
$2.02M 72,904 -635,905 -90%
HCA
67
Harbor Capital Advisors
Illinois
$1.96M 70,926 -6,796 -9%
Hudson Bay Capital Management
68
Hudson Bay Capital Management
Connecticut
$1.96M 70,780 -129,220 -65%
Charles Schwab
69
Charles Schwab
California
$1.95M 70,315 -94,057 -57%
NRD
70
Nebula Research & Development
New York
$1.93M 69,884 +31,570 +82%
SSA
71
Schonfeld Strategic Advisors
New York
$1.9M 68,751 +18,904 +38%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
72
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$1.87M 67,500 +67,500 New
Swiss National Bank
73
Swiss National Bank
Switzerland
$1.79M 64,600 -7,300 -10%
Massachusetts Financial Services
74
Massachusetts Financial Services
Massachusetts
$1.78M 64,232 +793 +1%
Russell Investments Group
75
Russell Investments Group
United Kingdom
$1.7M 61,095 -22,056 -27%
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