GAMMA Investing’s Sionna Therapeutics SION Stock Holding History

GAMMA Investing’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	$10.7K	Buy	244 +6	+3%	+$240	﹤0.01%	3171
2026 Q1	$9.54K	Buy	238 +61	+34%	+$2.33K	﹤0.01%	3090
2025 Q4	$7.28K	Buy	177 +24	+16%	+$910	﹤0.01%	3120
2025 Q3	$4.5K	Buy	+153	New	+$3.33K	﹤0.01%	3216

Other funds holding SION

Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return

FFA

Farther Finance Advisors San Francisco, California $12.8B AUM 26.53% 1-Year Est. Return

HFS

Hughes Financial Services Herndon, Virginia $755M AUM 20.43% 1-Year Est. Return

FFO

Fortitude Family Office Scottsdale, Arizona $516M AUM 28.38% 1-Year Est. Return

SIC

SJS Investment Consulting Sylvania, Ohio $919M AUM 23.4% 1-Year Est. Return

CIM

Contravisory Investment Management Norwell, Massachusetts $566M AUM 42.93% 1-Year Est. Return

GAMMA Investing's SION Position: Q2 2026 in Review

GAMMA Investing increased its Sionna Therapeutics (SION) stake by 2.5% in Q2 2026, buying an estimated $240 and bringing the position to 244 shares worth $10.7K. The position accounts for ﹤0.01% of the portfolio, ranked #3171.

GAMMA Investing first reported a position in SION in Q3 2025 and has held it in 4 quarters since. 7 funds tracked by Wall St. Rank hold SION as of Q2 2026.

GAMMA Investing held 244 shares of Sionna Therapeutics worth $10.7K as of Q2 2026.
GAMMA Investing bought 6 Sionna Therapeutics shares in Q2 2026, an estimated $240.
Sionna Therapeutics made up ﹤0.01% of GAMMA Investing's portfolio in Q2 2026, its #3171 holding.
GAMMA Investing first reported a position in Sionna Therapeutics in Q3 2025 and has held it in 4 quarters since.
7 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q2 2026.

Based on GAMMA Investing's 13F filing for Q2 2026, filed 7 Jul 2026.