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STATE STREET CORP

Position in SION — Sionna Therapeutics, Inc.

CIK 93751 BOSTON, MA

Position in SION

as of Jun 30, 2026 · filed Aug 7, 2026
Position Value
$44,937,280
+$14,620,140 QoQ
Shares Held
1,021,534
+35.1% QoQ
Ownership
2.26%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#13
of 146 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority Sole 8% Shared 0% None 92%

Common Shares in SION Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

STATE STREET CORP holds $36,881,619,425 across 411 Biotechnology names. SION ranks #123 (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 $44,937,280 1,021,534
2026-03-31 $30,317,140 756,227
2025-12-31 $28,526,270 693,395
2025-09-30 $7,064,252 240,199
2025-06-30 $2,160,387 124,518
2025-03-31 $150,624 14,400