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MARSHALL WACE, LLP

Position in SION — Sionna Therapeutics, Inc.

CIK 1318757 LONDON, X0

Position in SION

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$554,230
-$331,099 QoQ
Shares Held
12,599
-58.1% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#88
of 146 holders
Holding Since
Mar 2025
3 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in SION Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

MARSHALL WACE, LLP holds $3,055,517,440 across 267 Biotechnology names. SION ranks #211 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SION

Export CSV
3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $554,230 12,599
2025-09-30 $885,329 30,103
2025-03-31 $127,485 12,188