Sterling Capital Management’s Sionna Therapeutics SION Stock Holding History

Sterling Capital Management’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	$3.18K	Buy	605 +540	+831%	+$12.4K	﹤0.01%	3041
2026 Q2	$2.86K	Sell	65 -40	-38%	-$1.6K	﹤0.01%	2891
2026 Q1	$4.21K	Hold	105	–	–	﹤0.01%	2801
2025 Q4	$4.32K	Buy	105 +75	+250%	+$2.84K	﹤0.01%	2934
2025 Q3	$882	Hold	30	–	–	﹤0.01%	3097
2025 Q2	$521	Buy	+30	New	+$393	﹤0.01%	3150

Other funds holding SION

Atlas Venture Life Science Advisors Cambridge, Massachusetts $631M AUM 38.42% 1-Year Est. Return

Aberdeen Group Edinburgh, United Kingdom $72.4B AUM 31.32% 1-Year Est. Return

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

Acadian Asset Management Boston, Massachusetts $85.7B AUM 51.02% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

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

Caitong International Asset Management Hong Kong $1.04B AUM 150.26% 1-Year Est. Return

Rhenman & Partners Asset Management Stockholm, Sweden $903M AUM 49.67% 1-Year Est. Return

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Sterling Capital Management's SION Position: Q3 2026 in Review

Sterling Capital Management increased its Sionna Therapeutics (SION) stake by 831% in Q3 2026, buying an estimated $12.4K and bringing the position to 605 shares worth $3.18K. The position accounts for ﹤0.01% of the portfolio, ranked #3041.

Sterling Capital Management first reported a position in SION in Q2 2025 and has held it in 6 quarters since. The position peaked at $4.32K in Q4 2025. 65 funds tracked by Wall St. Rank hold SION as of Q3 2026.

Sterling Capital Management held 605 shares of Sionna Therapeutics worth $3.18K as of Q3 2026.
Sterling Capital Management bought 540 Sionna Therapeutics shares in Q3 2026, an estimated $12.4K.
Sionna Therapeutics made up ﹤0.01% of Sterling Capital Management's portfolio in Q3 2026, its #3041 holding.
Sterling Capital Management first reported a position in Sionna Therapeutics in Q2 2025 and has held it in 6 quarters since.
Sterling Capital Management's Sionna Therapeutics position peaked at $4.32K in Q4 2025.
65 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q3 2026.

Based on Sterling Capital Management's 13F filing for Q3 2026, filed 22 Oct 2026.