SGM
SION

Seven Grand Managers’s Sionna Therapeutics SION Stock Holding History

Seven Grand Managers’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 		$2.2M Hold
50,000
– – 0.09% 138
2026
Q1 		$2M Hold
50,000
– – 0.13% 113
2025
Q4 		$2.06M Buy
+50,000
New +$1.9M 0.16% 108

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

Seven Grand Managers's SION Position: Q2 2026 in Review

Seven Grand Managers held its Sionna Therapeutics (SION) position steady in Q2 2026 at 50,000 shares worth $2.2M. The position accounts for 0.09% of the portfolio, ranked #138.

Seven Grand Managers first reported a position in SION in Q4 2025 and has held it in 3 quarters since. 147 funds tracked by Wall St. Rank hold SION as of Q2 2026.

  • Seven Grand Managers held 50,000 shares of Sionna Therapeutics worth $2.2M as of Q2 2026.
  • Seven Grand Managers left its Sionna Therapeutics share count unchanged in Q2 2026.
  • Sionna Therapeutics made up 0.09% of Seven Grand Managers's portfolio in Q2 2026, its #138 holding.
  • Seven Grand Managers first reported a position in Sionna Therapeutics in Q4 2025 and has held it in 3 quarters since.
  • 147 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q2 2026.

Based on Seven Grand Managers's 13F filing for Q2 2026, filed 14 Aug 2026.