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Sionna Therapeutics, Inc. (SION) Ownership - Who Owns Sionna Therapeutics, Inc.?
Sionna Therapeutics, Inc. (SION) Ownership Overview
- 48.59% Insiders
- 10.04% Mutual Funds
- 0.03% Other Institutional Investors
- 5.86% ETFs
- 35.48% Public Companies and Individual Investors
The ownership structure of Sionna Therapeutics, Inc. (SION) stock is a mix of institutional, retail, and individual investors. Approximately 15.93% of the company’s stock is owned by Institutional Investors, 48.59% is owned by Insiders, and 35.48% is owned by Public Companies and Individual Investors.
The ownership structure of Sionna Therapeutics, Inc. (SION) stock is a mix of institutional, retail, and individual investors. Approximately 15.93% of the company’s stock is owned by Institutional Investors, 48.59% is owned by Insiders, and 35.48% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
| Date | Name | Activity | Value |
|---|---|---|---|
| Sep 20, 2026 | Ra Capital Management, Llc | $21,835,018 | |
| Feb 03, 2026 | Peter A. Thompson | $1,379,866 | |
| Feb 03, 2026 | Orbimed Advisors Llc | $1,379,866 | |
| Jan 25, 2026 | Tpg Gp A, Llc | $10,000,000 |
Recent Hedge Fund Trading Activity
| Date | Firm | Activity | Value |
|---|---|---|---|
| Jun 30, 2026 | Driehaus Capital Management Llc | $16,955,814 | |
| Jun 30, 2026 | Deerfield Management Company, Lp | $29,953,495 | |
| Jun 30, 2026 | Perceptive Advisors Llc | $39,810,950 | |
| Jun 30, 2026 | $64,875,088 |
Top Shareholders
| Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| Peter Kolchinsky | 9,905,045 | Institution | 21.91% | 38,332,524 |
| Tpg Gp A, Llc | 6,494,962 | Insider | 14.37% | 25,135,503 |
| Ra Capital Management, Llc | 6,456,234 | Insider | 14.28% | 24,985,626 |
| Andreas Halvorsen | 3,195,181 | Institution | 7.07% | 12,365,350 |
| Bruce Booth | 2,995,602 | Insider | 6.63% | 11,592,980 |
| Orbimed Advisors Llc | 2,469,959 | Insider | 5.46% | 9,558,741 |
| Peter A. Thompson | 2,469,959 | Insider | 5.46% | 9,558,741 |
| BlackRock, Inc. | 1,474,769 | Institution | 3.26% | 5,707,356 |
| Vanguard | 1,351,330 | Institution | 2.99% | 5,229,647 |
| Vanguard Index Funds | 1,103,010 | Institution | 2.44% | 4,268,649 |
Top Mutual Fund Holders
| Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| Vanguard Index Funds | 1,103,010 | Institution | 2.44% | 4,268,649 |
| Prudential Sector Funds, Inc. | 933,570 | Institution | 2.06% | 3,612,916 |
| Jpmorgan Trust Ii | 524,280 | Institution | 1.16% | 2,028,964 |
| Mutual Fund Series Trust | 479,832 | Institution | 1.06% | 1,856,950 |
| T. Rowe Price Health Sciences Fund, Inc. | 287,643 | Institution | 0.64% | 1,113,178 |
| Fidelity Salem Street Trust | 221,354 | Institution | 0.49% | 856,640 |
| Jpmorgan Trust I | 166,643 | Institution | 0.37% | 644,908 |
| Vanguard Scottsdale Funds | 127,183 | Institution | 0.28% | 492,198 |
| Artisan Partners Funds Inc. | 116,442 | Institution | 0.26% | 450,631 |
| Franklin Strategic Series | 107,956 | Institution | 0.24% | 417,790 |
Top ETF Holders
| Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| Vanguard, VTI ETF | 934,641 | Institution | 2.07% | 4,916,212 |
| iShares, IWM ETF | 475,161 | Institution | 1.05% | 1,900,644 |
| Vanguard, VXF ETF | 225,712 | Institution | 0.50% | 1,187,245 |
| iShares, IBB ETF | 207,467 | Institution | 0.46% | 802,897 |
| iShares, IWO ETF | 175,820 | Institution | 0.39% | 680,423 |
| Vanguard, VTWO ETF | 116,056 | Institution | 0.26% | 610,455 |
| Schwab, SCHA ETF | 101,490 | Institution | 0.22% | 405,960 |
| ALPS, SBIO ETF | 54,932 | Institution | 0.12% | 212,587 |
| Vanguard, VHT ETF | 48,910 | Institution | 0.11% | 257,267 |
| iShares, DE:OM3E ETF | 38,114 | Institution | 0.08% | 152,456 |
FAQ
Who Owns Sionna Therapeutics, Inc. (SION)?
According to the latest TipRanks data, approximately 15.93% of the company's stock is held by institutional investors, 48.59% is held by insiders, and 35.48% is held by public companies and individual investors.
What percentage of Sionna Therapeutics, Inc. (SION) stock is held by institutional investors?
According to the latest TipRanks data, approximately 15.93% of Sionna Therapeutics, Inc. (SION) stock is held by institutional investors: 10.04% by mutual funds, 5.86% by ETFs and 0.03% by other institutional investors.
What percentage of Sionna Therapeutics, Inc. (SION) stock is held by retail investors?
According to the latest TipRanks data, approximately 35.48% of Sionna Therapeutics, Inc. (SION) stock is held by public companies and individual investors.
Who owns the most shares of Sionna Therapeutics, Inc. (SION)?
Peter Kolchinsky owns the most shares of Sionna Therapeutics, Inc. (SION).
What is the significance of the ownership structure for a publicly traded company?
The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.
