VIA
SION

Virtus Investment Advisers’s Sionna Therapeutics SION Stock Holding History

Virtus Investment Advisers’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 		$256K Buy
6,374
+154
+2% +$5.88K 0.07% 313
2025
Q4 		$256K Sell
6,220
-478
-7% -$18.1K 0.07% 317
2025
Q3 		$197K Buy
6,698
+1,163
+21% +$25.3K 0.06% 257
2025
Q2 		$96K Buy
+5,535
New +$72.5K 0.03% 347

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

Virtus Investment Advisers's SION Position: Q1 2026 in Review

Virtus Investment Advisers increased its Sionna Therapeutics (SION) stake by 2.5% in Q1 2026, buying an estimated $5.88K and bringing the position to 6,374 shares worth $256K. The position accounts for 0.07% of the portfolio, ranked #313.

Virtus Investment Advisers first reported a position in SION in Q2 2025 and has held it in 4 quarters since. The position peaked at $256K in Q4 2025. 122 funds tracked by Wall St. Rank hold SION as of Q1 2026.

  • Virtus Investment Advisers held 6,374 shares of Sionna Therapeutics worth $256K as of Q1 2026.
  • Virtus Investment Advisers bought 154 Sionna Therapeutics shares in Q1 2026, an estimated $5.88K.
  • Sionna Therapeutics made up 0.07% of Virtus Investment Advisers's portfolio in Q1 2026, its #313 holding.
  • Virtus Investment Advisers first reported a position in Sionna Therapeutics in Q2 2025 and has held it in 4 quarters since.
  • Virtus Investment Advisers's Sionna Therapeutics position peaked at $256K in Q4 2025.
  • 122 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q1 2026.

Based on Virtus Investment Advisers's 13F filing for Q1 2026, filed 14 May 2026.