Sionna Therapeutics, Inc.
SION- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0002036042
In the last 90 days, Sionna Therapeutics, Inc. insiders filed 0 open-market purchases and 4 sales; 146 institutions reported holding it in 13F filings for Q2 2026, worth $2.11B in total; Viking Global Investors is the only superinvestor holding it.
13F holders, Q1 2025
Institutional positions in Sionna Therapeutics, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 47
- +47 vs. Q4 2024
- Shares held
- 41.5M
- +41.5M vs. Q4 2024
- Total value
- $434.1M
- +$434.1M vs. Q4 2024
- New holders
- 47
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SION on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 146 | $2.11B |
| Q1 2026 | 122 | $1.82B |
| Q4 2025 | 101 | $1.81B |
| Q3 2025 | 78 | $1.26B |
| Q2 2025 | 65 | $753.8M |
| Q1 2025 | 47 | $434.1M |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Sionna Therapeutics, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 618 | $6.00K | 0.00% | +618 | New |
| Morgan Stanley | 3,939 | $41.2K | 0.00% | +3,939 | New |
| Bank of America Corp | 8,739 | $91.4K | 0.00% | +8,739 | New |
| UBS Group AG | 11,146 | $116.6K | 0.00% | +11,146 | New |
| Two Sigma Investments, LP | 11,715 | $122.5K | 0.00% | +11,715 | New |
| Marshall Wace, LLP | 12,188 | $127.5K | 0.00% | +12,188 | New |
| Balyasny Asset Management LLC | 13,060 | $136.6K | 0.00% | +13,060 | New |
| State Street Corp | 14,400 | $150.6K | 0.00% | +14,400 | New |
| Aster Capital Management (DIFC) Ltd | 14,757 | $203.2K | 0.04% | +14,757 | New |
| Northern Trust Corp | 26,822 | $280.6K | 0.00% | +26,822 | New |
| Manufacturers Life Insurance Company, The | 33,549 | $350.9K | 0.00% | +33,549 | New |
| Squarepoint Ops LLC | 33,964 | $355.3K | 0.00% | +33,964 | New |
| Holocene Advisors, LP | 50,000 | $523.0K | 0.00% | +50,000 | New |
| TD Asset Management Inc | 55,366 | $579.1K | 0.00% | +55,366 | New |
| StemPoint Capital LP | 60,000 | $627.6K | 0.20% | +60,000 | New |
| Prudential Financial Inc | 63,000 | $659.0K | 0.00% | +63,000 | New |
| Goldman Sachs Group Inc | 63,741 | $666.7K | 0.00% | +63,741 | New |
| Charles Schwab Investment Management Inc | 64,644 | $676.2K | 0.00% | +64,644 | New |
| Woodline Partners LP | 80,000 | $836.8K | 0.01% | +80,000 | New |
| Rock Springs Capital Management LP | 99,429 | $1.04M | 0.06% | +99,429 | New |
| Silverarc Capital Management, LLC | 114,138 | $1.19M | 0.25% | +114,138 | New |
| CenterBook Partners LP | 114,284 | $1.20M | 0.08% | +114,284 | New |
| Geode Capital Management, LLC | 135,563 | $1.42M | 0.00% | +135,563 | New |
| Millennium Management LLC | 179,072 | $1.87M | 0.00% | +179,072 | New |
| Alyeska Investment Group, L.P. | 186,222 | $1.95M | 0.01% | +186,222 | New |
| BlackRock, Inc. | 198,396 | $2.08M | 0.00% | +198,396 | New |
| Ameriprise Financial Inc | 209,266 | $2.19M | 0.00% | +209,266 | New |
| Zimmer Partners, LP | 237,500 | $2.48M | 0.05% | +237,500 | New |
| Soleus Capital Management, L.P. | 240,000 | $2.51M | 0.20% | +240,000 | New |
| Siren, L.L.C. | 325,000 | $3.40M | 0.19% | +325,000 | New |
| Citadel Advisors LLC | 326,500 | $3.42M | 0.00% | +326,500 | New |
| Driehaus Capital Management LLC | 328,889 | $3.44M | 0.03% | +328,889 | New |
| Baker Bros. Advisors LP | 400,000 | $4.18M | 0.05% | +400,000 | New |
| Franklin Resources Inc | 500,023 | $5.23M | 0.00% | +500,023 | New |
| Vanguard Group Inc | 546,167 | $5.71M | 0.00% | +546,167 | New |
| Standard Life Aberdeen plc | 745,964 | $7.80M | 0.02% | +745,964 | New |
| Deerfield Management Company, L.P. (Series C) | 747,000 | $7.81M | 0.15% | +747,000 | New |
| Jennison Associates LLC | 859,927 | $8.99M | 0.01% | +859,927 | New |
| Price T Rowe Associates Inc | 996,212 | $10.4M | 0.00% | +996,212 | New |
| Perceptive Advisors LLC | 1,251,101 | $13.1M | 0.46% | +1,251,101 | New |
| JPMorgan Chase & Co | 2,169,599 | $22.7M | 0.00% | +2,169,599 | New |
| Enavate Sciences GP, LLC | 2,478,030 | $25.9M | 19.53% | +2,478,030 | New |
| Viking Global Investors LPSuperinvestorViking Global Investors | 2,952,754 | $30.9M | 0.10% | +2,952,754 | New |
| Atlas Venture Life Science Advisors, LLC | 3,694,020 | $38.6M | 7.41% | +3,694,020 | New |
| OrbiMed Advisors LLC | 3,704,959 | $38.8M | 0.93% | +3,704,959 | New |
| TPG GP A, LLC | 6,684,962 | $69.9M | 1.41% | +6,684,962 | New |
| Ra Capital Management, L.P. | 10,445,322 | $109.3M | 1.82% | +10,445,322 | New |