EGM
SION

Engineers Gate Manager’s Sionna Therapeutics SION Stock Holding History

Engineers Gate Manager’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 		$686K Buy
+15,603
New +$624K 0.01% 1307

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

Engineers Gate Manager's SION Position: Q2 2026 in Review

Engineers Gate Manager opened a new position in Sionna Therapeutics (SION) in Q2 2026: 15,603 shares worth $686K. The stake represents 0.01% of the portfolio and ranks #1307 among its holdings.

147 funds tracked by Wall St. Rank hold SION as of Q2 2026.

  • Engineers Gate Manager held 15,603 shares of Sionna Therapeutics worth $686K as of Q2 2026.
  • Sionna Therapeutics was a new Engineers Gate Manager position in Q2 2026.
  • Sionna Therapeutics made up 0.01% of Engineers Gate Manager's portfolio in Q2 2026, its #1307 holding.
  • 147 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q2 2026.

Based on Engineers Gate Manager's 13F filing for Q2 2026, filed 14 Aug 2026.