American Century Companies’s Kiniksa Pharmaceuticals KNSA Stock Holding History

American Century Companies's KNSA Position: Q2 2026 in Review

American Century Companies increased its Kiniksa Pharmaceuticals (KNSA) stake by 673% in Q2 2026, buying an estimated $2.55M and bringing the position to 56,408 shares worth $3.61M. The position accounts for ﹤0.01% of the portfolio, ranked #1998.

American Century Companies first reported a position in KNSA in Q2 2023 and has held it in 11 quarters since. 266 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

• American Century Companies held 56,408 shares of Kiniksa Pharmaceuticals worth $3.61M as of Q2 2026.
• American Century Companies bought 49,106 Kiniksa Pharmaceuticals shares in Q2 2026, an estimated $2.55M.
• Kiniksa Pharmaceuticals made up ﹤0.01% of American Century Companies's portfolio in Q2 2026, its #1998 holding.
• American Century Companies first reported a position in Kiniksa Pharmaceuticals in Q2 2023 and has held it in 11 quarters since.
• 266 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.