Ensign Peak Advisors
SION

Ensign Peak Advisors’s Sionna Therapeutics SION Stock Holding History

Ensign Peak Advisors’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 		$8.12M Sell
184,532
-71,104
-28% -$2.84M 0.01% 473
2026
Q1 		$10.2M Buy
255,636
+175,774
+220% +$6.71M 0.02% 404
2025
Q4 		$3.29M Buy
+79,862
New +$3.03M 0.01% 605

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

Ensign Peak Advisors's SION Position: Q2 2026 in Review

Ensign Peak Advisors reduced its Sionna Therapeutics (SION) stake by 28% in Q2 2026, selling an estimated $2.84M and leaving 184,532 shares worth $8.12M. The position accounts for 0.01% of the portfolio, ranked #473.

Ensign Peak Advisors first reported a position in SION in Q4 2025 and has held it in 3 quarters since. The position peaked at $10.2M in Q1 2026. 147 funds tracked by Wall St. Rank hold SION as of Q2 2026.

  • Ensign Peak Advisors held 184,532 shares of Sionna Therapeutics worth $8.12M as of Q2 2026.
  • Ensign Peak Advisors sold 71,104 Sionna Therapeutics shares in Q2 2026, an estimated $2.84M.
  • Sionna Therapeutics made up 0.01% of Ensign Peak Advisors's portfolio in Q2 2026, its #473 holding.
  • Ensign Peak Advisors first reported a position in Sionna Therapeutics in Q4 2025 and has held it in 3 quarters since.
  • Ensign Peak Advisors's Sionna Therapeutics position peaked at $10.2M in Q1 2026.
  • 147 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q2 2026.

Based on Ensign Peak Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.