Geode Capital Management
SION icon

Geode Capital Management’s Sionna Therapeutics SION Stock Holding History

Geode Capital Management’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
Q2 		$20.1M Buy
457,145
+67,273
+17% +$2.69M ﹤0.01% 2154
2026
Q1 		$15.6M Buy
389,872
+9,830
+3% +$375K ﹤0.01% 2133
2025
Q4 		$15.6M Buy
380,042
+63,478
+20% +$2.41M ﹤0.01% 2145
2025
Q3 		$9.31M Buy
316,564
+27,289
+9% +$594K ﹤0.01% 2447
2025
Q2 		$5.02M Buy
289,275
+153,712
+113% +$2.01M ﹤0.01% 2727
2025
Q1 		$1.42M Buy
+135,563
New +$2.22M ﹤0.01% 3177

Other funds holding SION

RA Capital Management
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
TPG GP A
TPG GP A Fort Worth, Texas $5B AUM 58.56% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return
Atlas Venture Life Science Advisors
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
OrbiMed
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $345M AUM 134.64% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

Geode Capital Management's SION Position: Q2 2026 in Review

Geode Capital Management increased its Sionna Therapeutics (SION) stake by 17% in Q2 2026, buying an estimated $2.69M and bringing the position to 457,145 shares worth $20.1M. The position accounts for ﹤0.01% of the portfolio, ranked #2154.

Geode Capital Management first reported a position in SION in Q1 2025 and has held it in 6 quarters since. 146 funds tracked by Wall St. Rank hold SION as of Q2 2026.

  • Geode Capital Management held 457,145 shares of Sionna Therapeutics worth $20.1M as of Q2 2026.
  • Geode Capital Management bought 67,273 Sionna Therapeutics shares in Q2 2026, an estimated $2.69M.
  • Sionna Therapeutics made up ﹤0.01% of Geode Capital Management's portfolio in Q2 2026, its #2154 holding.
  • Geode Capital Management first reported a position in Sionna Therapeutics in Q1 2025 and has held it in 6 quarters since.
  • 146 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q2 2026.

Based on Geode Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.