AAP
SION

Arax Advisory Partners’s Sionna Therapeutics SION Stock Holding History

Arax Advisory Partners’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 		$1.8K Buy
+41
New +$1.64K ﹤0.01% 4838
2025
Q4 		– Sell
-92
Closed -$2.71K – 4622
2025
Q3 		$2.71K Buy
+92
New +$2K ﹤0.01% 3035

Other funds holding SION

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
TGA
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
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
O
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

Arax Advisory Partners's SION Position: Q2 2026 in Review

Arax Advisory Partners opened a new position in Sionna Therapeutics (SION) in Q2 2026: 41 shares worth $1.8K. The stake represents ﹤0.01% of the portfolio and ranks #4838 among its holdings. This is a return to the name: Arax Advisory Partners previously reported a position in SION as recently as Q3 2025.

Arax Advisory Partners first reported a position in SION in Q3 2025 and has held it in 2 quarters since. The position peaked at $2.71K in Q3 2025. 147 funds tracked by Wall St. Rank hold SION as of Q2 2026.

  • Arax Advisory Partners held 41 shares of Sionna Therapeutics worth $1.8K as of Q2 2026.
  • Sionna Therapeutics was a new Arax Advisory Partners position in Q2 2026.
  • Sionna Therapeutics made up ﹤0.01% of Arax Advisory Partners's portfolio in Q2 2026, its #4838 holding.
  • Arax Advisory Partners first reported a position in Sionna Therapeutics in Q3 2025 and has held it in 2 quarters since.
  • Arax Advisory Partners's Sionna Therapeutics position peaked at $2.71K in Q3 2025.
  • 147 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q2 2026.

Based on Arax Advisory Partners's 13F filing for Q2 2026, filed 10 Aug 2026.