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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 %
RCMNY
1
Rubric Capital Management (New York)
New York
$108M +$14.6M +526,567 +16%
Vanguard Group
2
Vanguard Group
Pennsylvania
$86.7M -$6.29M -227,499 -7%
BBA
3
Baker Bros. Advisors
New York
$78.2M +$176K +6,346 +0.2%
TCM
4
Tang Capital Management
California
$64.4M +$5.81M +210,030 +10%
FFM
5
Fairmount Funds Management
Pennsylvania
$49.1M +$18.6M +670,591 +61%
Acadian Asset Management
6
Acadian Asset Management
Massachusetts
$35.1M +$6.46M +233,668 +23%
B
7
Braidwell
Connecticut
$30.5M -$23.8M -860,329 -44%
Morgan Stanley
8
Morgan Stanley
New York
$29.5M -$280K -10,120 -0.9%
Millennium Management
9
Millennium Management
New York
$28.2M +$4.78M +172,844 +20%
Pictet Asset Management
10
Pictet Asset Management
Switzerland
$27.2M -$4.13M -149,334 -13%
Qube Research & Technologies (QRT)
11
Qube Research & Technologies (QRT)
United Kingdom
$24.6M +$18.1M +653,236 +278%
Point72 Asset Management
12
Point72 Asset Management
Connecticut
$23.5M -$8.32M -300,862 -26%
Fidelity Investments
13
Fidelity Investments
Massachusetts
$22.3M +$76.2K +2,755 +0.3%
D.E. Shaw & Co
14
D.E. Shaw & Co
New York
$21.9M +$10.9M +393,560 +99%
Arrowstreet Capital
15
Arrowstreet Capital
Massachusetts
$20.3M +$20.3M +735,417 New
BlackRock
16
BlackRock
New York
$19.4M -$75.5M -2,729,819 -80%
CSS
17
Cubist Systematic Strategies
Connecticut
$18.2M +$12.4M +447,536 +213%
Dimensional Fund Advisors
18
Dimensional Fund Advisors
Texas
$17.9M -$3.43M -123,967 -16%
DCM
19
Driehaus Capital Management
Illinois
$17.9M +$1.02M +36,702 +6%
RHJA
20
Rice Hall James & Associates
California
$17.7M +$379K +13,688 +2%
Connor, Clark & Lunn Investment Management (CC&L)
21
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$17.3M +$6.2M +223,946 +56%
Jane Street
22
Jane Street
New York
$15.5M +$11.9M +429,101 +332%
PHP
23
Parkman Healthcare Partners
Connecticut
$13.5M -$7.58M -273,825 -36%
ACH
24
ArrowMark Colorado Holdings
Colorado
$12.9M -$1.93M -69,808 -13%
TI
25
Trexquant Investment
Connecticut
$12.6M +$6.1M +220,504 +93%
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