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XTX Topco’s Kiniksa Pharmaceuticals KNSA Stock Holding History

XTX Topco’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 		$1.17M Buy
+18,261
New +$947K 0.02% 1654
2026
Q1 		– Sell
-7,062
Closed -$291K – 4103
2025
Q4 		$291K Buy
+7,062
New +$283K 0.01% 2097
2024
Q4 		– Sell
-27,302
Closed -$682K – 2620
2024
Q3 		$682K Buy
27,302
+10,474
+62% +$255K 0.05% 613
2024
Q2 		$314K Buy
+16,828
New +$315K 0.03% 928
2022
Q4 		– Sell
-16,807
Closed -$216K – 1322
2022
Q3 		$216K Buy
+16,807
New +$191K 0.05% 734

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

XTX Topco's KNSA Position: Q2 2026 in Review

XTX Topco opened a new position in Kiniksa Pharmaceuticals (KNSA) in Q2 2026: 18,261 shares worth $1.17M. The stake represents 0.02% of the portfolio and ranks #1654 among its holdings. This is a return to the name: XTX Topco previously reported a position in KNSA as recently as Q4 2025.

XTX Topco first reported a position in KNSA in Q3 2022 and has held it in 5 quarters since. 266 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

  • XTX Topco held 18,261 shares of Kiniksa Pharmaceuticals worth $1.17M as of Q2 2026.
  • Kiniksa Pharmaceuticals was a new XTX Topco position in Q2 2026.
  • Kiniksa Pharmaceuticals made up 0.02% of XTX Topco's portfolio in Q2 2026, its #1654 holding.
  • XTX Topco first reported a position in Kiniksa Pharmaceuticals in Q3 2022 and has held it in 5 quarters since.
  • 266 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.