Millennium Management
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Millennium Management’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Millennium Management’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
2021
Q2 		– Sell
-10,000
Closed -$185K – 6806
2021
Q1 		$185K Buy
+10,000
New +$205K ﹤0.01% 5521

Other funds holding KNSA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Millennium Management's KNSA Position: Q1 2026 in Review

Millennium Management reduced its Kiniksa Pharmaceuticals (KNSA) stake by 32% in Q1 2026, selling an estimated $11.6M and leaving 564,420 shares worth $27.2M. The position accounts for 0.01% of the portfolio, ranked #1297.

Millennium Management first reported a position in KNSA in Q2 2018 and has held it in 30 quarters since. The position peaked at $39.4M in Q3 2025. 228 funds tracked by Wall St. Rank hold KNSA as of Q1 2026.

  • Millennium Management held 564,420 shares of Kiniksa Pharmaceuticals worth $27.2M as of Q1 2026.
  • Millennium Management sold 260,865 Kiniksa Pharmaceuticals shares in Q1 2026, an estimated $11.6M.
  • Kiniksa Pharmaceuticals made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1297 holding.
  • Millennium Management first reported a position in Kiniksa Pharmaceuticals in Q2 2018 and has held it in 30 quarters since.
  • Millennium Management's Kiniksa Pharmaceuticals position peaked at $39.4M in Q3 2025.
  • 228 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.