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Kiniksa Pharmaceuticals
KNSA

Overview Fund Activity

188 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, 65 increasing their positions, 62 reducing their positions, and 33 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
188
Holders Change
+13
Holders Change %
+7.43%
% of All Funds
2.52%
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
65
Reduced
62
Closed
33
Calls
$8.22M
Puts
$36.2M
Net Calls
-$28M
Net Calls Change
-$28.1M

Top Buyers

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

Top Sellers

1
BlackRock
BlackRock
New York
$19.4M
2
B
Braidwell
Connecticut
$30.5M
3
State Street
State Street
Massachusetts
$2.02M
4
NL
Nuveen LLC
North Carolina
$0
5
Geode Capital Management
Geode Capital Management
Massachusetts
$1.41M
Name Holding Trade Value Shares
Change 		Shares
Change %
Walleye Capital
51
Walleye Capital
New York
$3.32M +$932K +33,682 +39%
LTAS
52
Linden Thomas Advisory Services
North Carolina
$3.21M -$32.3K -1,166 -1%
Wellington Management Group
53
Wellington Management Group
Massachusetts
$3.15M +$635K +22,958 +25%
WAM
54
Weiss Asset Management
Massachusetts
$3.09M +$3.09M +111,710 New
Franklin Resources
55
Franklin Resources
California
$3M +$1.15M +41,632 +62%
EI
56
EAM Investors
California
$2.93M +$2.93M +105,747 New
UBS AM
57
UBS AM
Illinois
$2.9M +$1.35M +48,729 +87%
PP
58
PDT Partners
New York
$2.85M +$1.56M +56,479 +122%
Fisher Asset Management
59
Fisher Asset Management
Washington
$2.83M -$1.16M -41,992 -29%
SEI Investments
60
SEI Investments
Pennsylvania
$2.81M +$716K +25,860 +34%
GC
61
Globeflex Capital
California
$2.45M – – –
Two Sigma Advisers
62
Two Sigma Advisers
New York
$2.36M +$2.36M +85,400 New
Raymond James Financial
63
Raymond James Financial
Florida
$2.35M -$519K -18,758 -18%
State of Wisconsin Investment Board
64
State of Wisconsin Investment Board
Wisconsin
$2.33M -$470K -16,975 -17%
Marshall Wace
65
Marshall Wace
United Kingdom
$2.11M +$2.11M +76,347 New
SCM
66
Silverarc Capital Management
Massachusetts
$2.1M -$339K -12,256 -14%
State Street
67
State Street
Massachusetts
$2.02M -$17.6M -635,905 -90%
HCA
68
Harbor Capital Advisors
Illinois
$1.96M -$188K -6,796 -9%
Hudson Bay Capital Management
69
Hudson Bay Capital Management
Connecticut
$1.96M -$3.58M -129,220 -65%
Charles Schwab
70
Charles Schwab
California
$1.95M -$2.6M -94,057 -57%
NRD
71
Nebula Research & Development
New York
$1.93M +$874K +31,570 +82%
SSA
72
Schonfeld Strategic Advisors
New York
$1.9M +$523K +18,904 +38%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
73
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$1.87M +$1.87M +67,500 New
Swiss National Bank
74
Swiss National Bank
Switzerland
$1.79M -$202K -7,300 -10%
Massachusetts Financial Services
75
Massachusetts Financial Services
Massachusetts
$1.78M +$21.9K +793 +1%
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