Northern Trust
SION

Northern Trust’s Sionna Therapeutics SION Stock Holding History

Northern Trust’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
Q1 		$4.68M Buy
116,776
+4,660
+4% +$178K ﹤0.01% 2484
2025
Q4 		$4.61M Buy
112,116
+14,405
+15% +$546K ﹤0.01% 2521
2025
Q3 		$2.87M Buy
97,711
+5,821
+6% +$127K ﹤0.01% 2834
2025
Q2 		$1.59M Buy
91,890
+65,068
+243% +$853K ﹤0.01% 3120
2025
Q1 		$281K Buy
+26,822
New +$438K ﹤0.01% 3817

Other funds holding SION

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
TGA
TPG GP A Fort Worth, Texas $3.68B AUM 14.99% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Northern Trust's SION Position: Q1 2026 in Review

Northern Trust increased its Sionna Therapeutics (SION) stake by 4.2% in Q1 2026, buying an estimated $178K and bringing the position to 116,776 shares worth $4.68M. The position accounts for ﹤0.01% of the portfolio, ranked #2484.

Northern Trust first reported a position in SION in Q1 2025 and has held it in 5 quarters since. 122 funds tracked by Wall St. Rank hold SION as of Q1 2026.

  • Northern Trust held 116,776 shares of Sionna Therapeutics worth $4.68M as of Q1 2026.
  • Northern Trust bought 4,660 Sionna Therapeutics shares in Q1 2026, an estimated $178K.
  • Sionna Therapeutics made up ﹤0.01% of Northern Trust's portfolio in Q1 2026, its #2484 holding.
  • Northern Trust first reported a position in Sionna Therapeutics in Q1 2025 and has held it in 5 quarters since.
  • 122 funds tracked by Wall St. Rank held Sionna Therapeutics as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.