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CITIGROUP INC

Position in SION — Sionna Therapeutics, Inc.

CIK 831001 NEW YORK, NY

Position in SION

as of Mar 31, 2026 · filed May 11, 2026
Position Value
$723,944
+$510,634 QoQ
Shares Held
18,058
+248.3% QoQ
Ownership
0.040%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 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 Mar 31, 2026

CITIGROUP INC holds $1,427,808,560 across 402 Biotechnology names. SION ranks #96 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SION

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4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $723,944 18,058
2025-12-31 $213,310 5,185
2025-09-30 $20,204 687
2025-06-30 $75,992 4,380