Royal Bank of Canada
SION

Royal Bank of Canada’s Sionna Therapeutics SION Stock Holding History

Royal Bank of Canada’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
Q1 		$1K Sell
30
-459
-94% -$17.5K ﹤0.01% 7001
2025
Q4 		$21K Buy
489
+111
+29% +$4.21K ﹤0.01% 6026
2025
Q3 		$11K Buy
378
+318
+530% +$6.92K ﹤0.01% 6463
2025
Q2 		$1K Sell
60
-558
-90% -$7.31K ﹤0.01% 6967
2025
Q1 		$6K Buy
+618
New +$10.1K ﹤0.01% 6331

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
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Royal Bank of Canada's SION Position: Q1 2026 in Review

Royal Bank of Canada reduced its Sionna Therapeutics (SION) stake by 94% in Q1 2026, selling an estimated $17.5K and leaving 30 shares worth $1K. The position accounts for ﹤0.01% of the portfolio, ranked #7001.

Royal Bank of Canada first reported a position in SION in Q1 2025 and has held it in 5 quarters since. The position peaked at $21K in Q4 2025. 122 funds tracked by Wall St. Rank hold SION as of Q1 2026.

  • Royal Bank of Canada held 30 shares of Sionna Therapeutics worth $1K as of Q1 2026.
  • Royal Bank of Canada sold 459 Sionna Therapeutics shares in Q1 2026, an estimated $17.5K.
  • Sionna Therapeutics made up ﹤0.01% of Royal Bank of Canada's portfolio in Q1 2026, its #7001 holding.
  • Royal Bank of Canada first reported a position in Sionna Therapeutics in Q1 2025 and has held it in 5 quarters since.
  • Royal Bank of Canada's Sionna Therapeutics position peaked at $21K in Q4 2025.
  • 122 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q1 2026.

Based on Royal Bank of Canada's 13F filing for Q1 2026, filed 15 May 2026.