Marshall Wace
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Marshall Wace’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Marshall Wace’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
Q2 		– Sell
-305,371
Closed -$14.7M – 3465
2026
Q1 		$14.7M Buy
305,371
+299,571
+5,165% +$13.3M 0.01% 809
2025
Q4 		$239K Sell
5,800
-55,516
-91% -$2.23M ﹤0.01% 2533
2025
Q3 		$2.38M Sell
61,316
-15,031
-20% -$488K ﹤0.01% 1531
2025
Q2 		$2.11M Buy
+76,347
New +$1.94M ﹤0.01% 1539
2025
Q1 		– Sell
-86,762
Closed -$1.72M – 2880
2024
Q4 		$1.72M Sell
86,762
-3,809
-4% -$86.9K ﹤0.01% 1508
2024
Q3 		$2.26M Buy
+90,571
New +$2.21M ﹤0.01% 1319
2023
Q4 		– Sell
-158,230
Closed -$2.75M – 2405
2023
Q3 		$2.75M Sell
158,230
-167,312
-51% -$2.82M 0.01% 1084
2023
Q2 		$4.58M Sell
325,542
-481,283
-60% -$6.44M 0.01% 1054
2023
Q1 		$8.68M Buy
806,825
+658,886
+445% +$8.68M 0.02% 760
2022
Q4 		$2.22M Buy
+147,939
New +$2.15M 0.01% 1677
2022
Q1 		– Sell
-69,723
Closed -$821K – 3688
2021
Q4 		$821K Buy
+69,723
New +$857K ﹤0.01% 2560
2021
Q1 		– Sell
-78,352
Closed -$1.38M – 2680
2020
Q4 		$1.38M Sell
78,352
-69,951
-47% -$1.23M 0.01% 1080
2020
Q3 		$2.27M Buy
+148,303
New +$2.78M 0.01% 769

Other funds holding KNSA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
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
TCM
Tang Capital Management San Diego, California $2.2B AUM 156.35% 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

Marshall Wace's KNSA Position: Q2 2026 in Review

Marshall Wace sold out of Kiniksa Pharmaceuticals (KNSA) in Q2 2026, closing a stake of 305,371 shares — an estimated $14.7M sold.

Marshall Wace first reported a position in KNSA in Q3 2020 and held it in 13 quarters. The position peaked at $14.7M in Q1 2026. 267 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

  • Marshall Wace reported no remaining Kiniksa Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • Marshall Wace sold 305,371 Kiniksa Pharmaceuticals shares in Q2 2026, an estimated $14.7M.
  • Marshall Wace first reported a position in Kiniksa Pharmaceuticals in Q3 2020 and held it in 13 quarters.
  • Marshall Wace's Kiniksa Pharmaceuticals position peaked at $14.7M in Q1 2026.
  • 267 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.