VANGUARD FIDUCIARY TRUST CO
BankPosition in SION — Sionna Therapeutics, Inc.
CIK 933478
MALVERN, PA
Position in SION
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$5,342,233
+$845,138 QoQ
Shares Held
121,442
+8.3% QoQ
Ownership
0.269%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#44
of 146 holders
Holding Since
Mar 2026
2 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, 2026VANGUARD FIDUCIARY TRUST CO holds $5,609,288,774 across 466 Biotechnology names. SION ranks #130 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
1,425,390 | $708,033,974 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
563,711 | $351,496,356 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
862,782 | $259,723,265 | |
| 4 | RVMD |
Revolution Medicines, Inc.
|
1,291,141 | $241,804,886 | |
| 5 | INSM |
INSMED Inc
|
1,401,552 | $149,433,474 | |
| 6 | MRNA |
Moderna, Inc.
|
1,987,627 | $139,193,518 | |
| 7 | RPRX |
Royalty Pharma plc
|
2,163,271 | $121,294,604 | |
| 8 | INCY |
Incyte Corp
|
943,540 | $106,959,694 |
All Filings in SION
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $5,342,233 | 121,442 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $4,497,095 | 112,175 | Shares | Defined | 2026-05-08 | |
| No filing history on record for this holder in this stock. | ||||||