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GEODE CAPITAL MANAGEMENT, LLC

Position in SION — Sionna Therapeutics, Inc.

CIK 1214717 BOSTON, MA

Position in SION

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$20,109,808
+$4,479,840 QoQ
Shares Held
457,145
+17.3% QoQ
Ownership
1.01%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#19
of 146 holders
Holding Since
Mar 2025
6 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

GEODE CAPITAL MANAGEMENT, LLC holds $22,039,427,018 across 520 Biotechnology names. SION ranks #134 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SION

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $20,109,808 457,145
2026-03-31 $15,629,968 389,872
2025-12-31 $15,634,927 380,042
2025-09-30 $9,310,146 316,564
2025-06-30 $5,018,920 289,275
2025-03-31 $1,417,988 135,563