GAMMA Investing’s Sionna Therapeutics SION Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q3
$4.87K Buy
925
+681
+279% +$15.6K ﹤0.01% 3658
2026
Q2
$10.7K Buy
244
+6
+3% +$240 ﹤0.01% 3171
2026
Q1
$9.5K 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

GAMMA Investing's SION Position: Q3 2026 in Review

GAMMA Investing increased its Sionna Therapeutics (SION) stake by 279% in Q3 2026, buying an estimated $15.6K and bringing the position to 925 shares worth $4.87K. The position accounts for ﹤0.01% of the portfolio, ranked #3658.

GAMMA Investing first reported a position in SION in Q3 2025 and has held it in 5 quarters since. The position peaked at $10.7K in Q2 2026. 11 funds tracked by Wall St. Rank hold SION as of Q3 2026.

  • GAMMA Investing held 925 shares of Sionna Therapeutics worth $4.87K as of Q3 2026.
  • GAMMA Investing bought 681 Sionna Therapeutics shares in Q3 2026, an estimated $15.6K.
  • Sionna Therapeutics made up ﹤0.01% of GAMMA Investing's portfolio in Q3 2026, its #3658 holding.
  • GAMMA Investing first reported a position in Sionna Therapeutics in Q3 2025 and has held it in 5 quarters since.
  • GAMMA Investing's Sionna Therapeutics position peaked at $10.7K in Q2 2026.
  • 11 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q3 2026.

Based on GAMMA Investing's 13F filing for Q3 2026, filed 8 Oct 2026.