Commonwealth Equity Services
SION

Commonwealth Equity Services’s Sionna Therapeutics SION Stock Holding History

Commonwealth Equity Services’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
2025
Q3 		– Sell
-14,017
Closed -$243K – 4462
2025
Q2 		$243K Buy
+14,017
New +$184K ﹤0.01% 3778

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
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return

Commonwealth Equity Services's SION Position: Q3 2025 in Review

Commonwealth Equity Services sold out of Sionna Therapeutics (SION) in Q3 2025, closing a stake of 14,017 shares — an estimated $243K sold.

Commonwealth Equity Services first reported a position in SION in Q2 2025 and held it in 1 quarter. The position peaked at $243K in Q2 2025. 78 funds tracked by Wall St. Rank hold SION as of Q3 2025.

  • Commonwealth Equity Services reported no remaining Sionna Therapeutics position as of Q3 2025 after selling out during the quarter.
  • Commonwealth Equity Services sold 14,017 Sionna Therapeutics shares in Q3 2025, an estimated $243K.
  • Commonwealth Equity Services first reported a position in Sionna Therapeutics in Q2 2025 and held it in 1 quarter.
  • Commonwealth Equity Services's Sionna Therapeutics position peaked at $243K in Q2 2025.
  • 78 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q3 2025.

Based on Commonwealth Equity Services's 13F filing for Q3 2025, filed 22 Oct 2025.