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VANGUARD CAPITAL MANAGEMENT LLC

Position in SION — Sionna Therapeutics, Inc.

CIK 2100119 MALVERN, PA

Position in SION

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$49,796,723
+$8,524,189 QoQ
Shares Held
1,132,001
+10.0% QoQ
Ownership
2.50%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#12
of 146 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in SION Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

VANGUARD CAPITAL MANAGEMENT LLC holds $43,385,012,448 across 464 Biotechnology names. SION ranks #110 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SION

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $49,796,723 1,132,001
2026-03-31 $41,272,534 1,029,497