Squarepoint
SION

Squarepoint’s Sionna Therapeutics SION Stock Holding History

Squarepoint’s Portfolio SION Stock Details SION Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$610K Sell
15,217
-1,143
-7% -$43.6K ﹤0.01% 3177
2025
Q4 		$673K Buy
16,360
+6,198
+61% +$235K ﹤0.01% 2953
2025
Q3 		$299K Buy
+10,162
New +$221K ﹤0.01% 3673
2025
Q2 		– Sell
-33,964
Closed -$355K – 5206
2025
Q1 		$355K Buy
+33,964
New +$555K ﹤0.01% 3605

Other funds holding SION

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
TGA
TPG GP A Fort Worth, Texas $3.68B AUM 14.99% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Squarepoint's SION Position: Q1 2026 in Review

Squarepoint reduced its Sionna Therapeutics (SION) stake by 7% in Q1 2026, selling an estimated $43.6K and leaving 15,217 shares worth $610K. The position accounts for ﹤0.01% of the portfolio, ranked #3177.

Squarepoint first reported a position in SION in Q1 2025 and has held it in 4 quarters since. The position peaked at $673K in Q4 2025. 122 funds tracked by Wall St. Rank hold SION as of Q1 2026.

  • Squarepoint held 15,217 shares of Sionna Therapeutics worth $610K as of Q1 2026.
  • Squarepoint sold 1,143 Sionna Therapeutics shares in Q1 2026, an estimated $43.6K.
  • Sionna Therapeutics made up ﹤0.01% of Squarepoint's portfolio in Q1 2026, its #3177 holding.
  • Squarepoint first reported a position in Sionna Therapeutics in Q1 2025 and has held it in 4 quarters since.
  • Squarepoint's Sionna Therapeutics position peaked at $673K in Q4 2025.
  • 122 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q1 2026.

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