Franklin Resources
SION

Franklin Resources’s Sionna Therapeutics SION Stock Holding History

Franklin Resources’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 		$7.04M Hold
175,483
– – ﹤0.01% 1380
2025
Q4 		$7.22M Sell
175,483
-66,664
-28% -$2.53M ﹤0.01% 1266
2025
Q3 		$7.12M Sell
242,147
-257,876
-52% -$5.61M ﹤0.01% 1285
2025
Q2 		$8.68M Hold
500,023
– – ﹤0.01% 1176
2025
Q1 		$5.23M Buy
+500,023
New +$8.17M ﹤0.01% 1330

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

Franklin Resources's SION Position: Q1 2026 in Review

Franklin Resources held its Sionna Therapeutics (SION) position steady in Q1 2026 at 175,483 shares worth $7.04M. The position accounts for ﹤0.01% of the portfolio, ranked #1380.

Franklin Resources first reported a position in SION in Q1 2025 and has held it in 5 quarters since. The position peaked at $8.68M in Q2 2025. 122 funds tracked by Wall St. Rank hold SION as of Q1 2026.

  • Franklin Resources held 175,483 shares of Sionna Therapeutics worth $7.04M as of Q1 2026.
  • Franklin Resources left its Sionna Therapeutics share count unchanged in Q1 2026.
  • Sionna Therapeutics made up ﹤0.01% of Franklin Resources's portfolio in Q1 2026, its #1380 holding.
  • Franklin Resources first reported a position in Sionna Therapeutics in Q1 2025 and has held it in 5 quarters since.
  • Franklin Resources's Sionna Therapeutics position peaked at $8.68M in Q2 2025.
  • 122 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q1 2026.

Based on Franklin Resources's 13F filing for Q1 2026, filed 13 May 2026.