Position in SION
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$128,094,806
-$3,354,940 QoQ
Shares Held
3,195,181
0.0% QoQ
Ownership
7.08%
of shares outstanding
% of Portfolio
0.36%
of 13F equity value
Holder Rank
#4
of 121 holders
Holding Since
Mar 2025
5 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in SION Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026VIKING GLOBAL INVESTORS LP holds $2,367,311,049 across 15 Biotechnology names. SION ranks #6 (5.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BBIO |
BridgeBio Pharma, Inc.
|
11,842,434 | $879,419,148 | |
| 2 | BMRN |
Biomarin Pharmaceutical Inc
|
7,062,077 | $398,936,729 | |
| 3 | ROIV |
Roivant Sciences Ltd.
|
6,652,448 | $184,272,809 | |
| 4 | NAMS |
NewAmsterdam Pharma Co N.V.
|
4,203,567 | $134,556,179 | |
| 5 | ORKA |
Oruka Therapeutics, Inc.
|
2,666,690 | $130,801,144 | |
| 6 | SION |
Sionna Therapeutics, Inc.
This page
|
3,195,181 | $128,094,806 | |
| 7 | MANE |
Veradermics, Inc
|
1,690,555 | $106,758,548 | |
| 8 | PHVS |
Pharvaris N.V.
|
3,653,310 | $103,206,007 |
All Filings in SION
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6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $128,094,806 | 3,195,181 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $131,449,746 | 3,195,181 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $93,970,273 | 3,195,181 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $55,436,390 | 3,195,181 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $30,885,806 | 2,952,754 | Shares | Sole | 2025-05-15 | |
| 2025-02-10 | $65,669,248 | 2,952,754 | Shares | Sole | 2025-02-14 | |
| No filing history on record for this holder in this stock. | ||||||