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Jane Street’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Jane Street’s Portfolio KNSA Stock Details KNSA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-242,430
Closed -$10.7M – 12324
2025
Q4 		$10M Sell
242,430
-218,958
-47% -$8.78M ﹤0.01% 2317
2025
Q3 		$17.9M Sell
461,388
-97,004
-17% -$3.15M ﹤0.01% 1757
2025
Q2 		$15.5M Buy
558,392
+429,101
+332% +$10.9M ﹤0.01% 1695
2025
Q1 		$2.87M Sell
129,291
-60,161
-32% -$1.24M ﹤0.01% 3776
2024
Q4 		$3.75M Sell
189,452
-155,640
-45% -$3.55M ﹤0.01% 3082
2024
Q3 		$8.62M Buy
345,092
+315,456
+1,064% +$7.68M ﹤0.01% 2086
2024
Q2 		$553K Buy
29,636
+16,722
+129% +$313K ﹤0.01% 6859
2024
Q1 		$255K Sell
12,914
-46,987
-78% -$918K ﹤0.01% 7807
2023
Q4 		$1.05M Buy
59,901
+49,753
+490% +$818K ﹤0.01% 5487
2023
Q3 		$176K Sell
10,148
-16,271
-62% -$274K ﹤0.01% 7707
2023
Q2 		$372K Buy
+26,419
New +$354K ﹤0.01% 6785
2022
Q4 		– Sell
-11,194
Closed -$144K – 9652
2022
Q3 		$144K Sell
11,194
-29,665
-73% -$338K ﹤0.01% 8427
2022
Q2 		$396K Buy
40,859
+18,128
+80% +$169K ﹤0.01% 7148
2022
Q1 		$226K Buy
+22,731
New +$241K ﹤0.01% 8862
2021
Q4 		– Sell
-17,921
Closed -$220K – 10490
2021
Q3 		$204K Buy
+17,921
New +$233K ﹤0.01% 8808
2020
Q4 		– Sell
-10,599
Closed -$162K – 7808
2020
Q3 		$162K Buy
+10,599
New +$199K ﹤0.01% 6550

Other funds holding KNSA

BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
SSC
Spruce Street Capital New York $510M AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

Jane Street's KNSA Position: Q1 2026 in Review

Jane Street sold out of Kiniksa Pharmaceuticals (KNSA) in Q1 2026, closing a stake of 242,430 shares — an estimated $10.7M sold.

Jane Street first reported a position in KNSA in Q3 2020 and held it in 16 quarters. The position peaked at $17.9M in Q3 2025. 228 funds tracked by Wall St. Rank hold KNSA as of Q1 2026.

  • Jane Street reported no remaining Kiniksa Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • Jane Street sold 242,430 Kiniksa Pharmaceuticals shares in Q1 2026, an estimated $10.7M.
  • Jane Street first reported a position in Kiniksa Pharmaceuticals in Q3 2020 and held it in 16 quarters.
  • Jane Street's Kiniksa Pharmaceuticals position peaked at $17.9M in Q3 2025.
  • 228 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.