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FMR LLC

Position in SION — Sionna Therapeutics, Inc.

CIK 315066 BOSTON, MA

Position in SION

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$12,242,065
+$8,978,940 QoQ
Shares Held
278,292
+241.9% QoQ
Ownership
0.616%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#26
of 146 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SION Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

FMR LLC holds $61,908,415,112 across 370 Biotechnology names. SION ranks #155 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SION

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $12,242,065 278,292
2026-03-31 $3,263,125 81,395
2025-12-31 $15,797 384
2025-09-30 $6,881 234