Dimensional Fund Advisors’s Sionna Therapeutics SION Stock Holding History

Dimensional Fund 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 Q3	$273K	Buy	+51,954	New	+$1.19M	﹤0.01%	3022

Other funds holding SION

Y-Intercept (HK) Hong Kong $4.52B AUM 6.6% 1-Year Est. Return

Citigroup New York $308B AUM 40.94% 1-Year Est. Return

Caitong International Asset Management Hong Kong $1.04B AUM 150.25% 1-Year Est. Return

ALPS Advisors Denver, Colorado $21.8B AUM 17.58% 1-Year Est. Return

Creative Planning Overland Park, Kansas $179B AUM 16.96% 1-Year Est. Return

State of Alaska Department of Revenue Juneau, Alaska $9.6B AUM 34.67% 1-Year Est. Return

Simplex Trading Chicago, Illinois $184B AUM 51.71% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

China Universal Asset Management Company Shanghai, China $1.92B AUM 74.14% 1-Year Est. Return

Chicago Partners Investment Group Chicago, Illinois $5.45B AUM 19.52% 1-Year Est. Return

Dimensional Fund Advisors's SION Position: Q3 2026 in Review

Dimensional Fund Advisors opened a new position in Sionna Therapeutics (SION) in Q3 2026: 51,954 shares worth $273K. The stake represents ﹤0.01% of the portfolio and ranks #3022 among its holdings.

34 funds tracked by Wall St. Rank hold SION as of Q3 2026.

Dimensional Fund Advisors held 51,954 shares of Sionna Therapeutics worth $273K as of Q3 2026.
Sionna Therapeutics was a new Dimensional Fund Advisors position in Q3 2026.
Sionna Therapeutics made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q3 2026, its #3022 holding.
34 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q3 2026.

Based on Dimensional Fund Advisors's 13F filing for Q3 2026, filed 4 Nov 2026.