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Kiniksa Pharmaceuticals

204 hedge funds and large institutions have $1.59B invested in Kiniksa Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 47 funds opening new positions, 60 increasing their positions, 70 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

8% more funds holding

Funds holding: 189204 (+15)

0.19% less ownership

Funds ownership: 94.14%93.95% (-0.19%)

14% less repeat investments, than reductions

Existing positions increased: 60 | Existing positions reduced: 70

Holders
204
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
5
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$24.1M
Puts
$3.82M
Net Calls
Net Calls Change

Top Buyers

1 +$12.9M
2 +$12.8M
3 +$11.4M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$11.1M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$10.8M

Top Sellers

1 -$14.9M
2 -$10.8M
3 -$9.15M
4
CSS
Cubist Systematic Strategies
Connecticut
-$8.97M
5
BlackRock
BlackRock
New York
-$7.97M
Name Holding Trade Value Shares
Change
Change in
Stake
26
$17.9M
27
$17.8M
28
$17.8M
29
$16M
30
$15.4M
31
$14.8M
32
$14M
33
$13.2M
34
$12.9M
35
$12.2M
36
$11.9M
37
$11.6M
38
$11M
39
$11M
40
$9.6M
41
$8.75M
42
$8.32M
43
$7.47M
44
$6.88M
45
$6.73M
46
$6.65M
47
$6.16M
48
$6.16M
49
$5.82M
50
$5.41M