Sonnet Biotherapeutics HoldiSONN
13F holders, Q3 2025 (September 30)27holders +18
21new positions
3sold out
1famous investor
$4.58avg. 13F price*
At the end of Q3 2025, 27 institutions reported holding Sonnet Biotherapeutics Holdi (SONN) in their 13F filings, up 18 from Q2 2025. 21 opened new positions and 3 sold out. The largest holders were Ikarian Capital, LLC ($687K), Vanguard Group Inc. ($441K) and HRT Financial LP ($340K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Sonnet Biotherapeutics Holdi
- CUSIP
- 83548R402
- Latest filing quarter
- Q4 2025
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 21 | $3.1M |
| Exits | 3 | $183K |
All 13F filers, Q2 2025 → Q3 2025: 744,752 shares bought and 154,060 shares sold, net +590,692 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 27 holders
| Ikarian Capital, LLC | 0.14% | New | 150,000 | $687K |
| Vanguard Group Inc. | 0.00% | New | 96,382 | $441K |
| HRT Financial LP | 0.00% | New | 74,265 | $340K |
| Geode Capital Management, LLC | 0.00% | Add +148.4% | 61,840 | $283K |
| Boothbay Fund Management, LLC | 0.01% | New | 56,339 | $258K |
| Goldman Sachs Group Inc. | 0.00% | New | 55,134 | $253K |
| BIT Capital GmbH | 0.01% | New | 48,358 | $221K |
| Citadel Advisors | 0.00% | New | 46,082 | $211K |
| Virtu Financial LLC | 0.01% | New | 26,266 | $120K |
| Morgan Stanley | 0.00% | New | 25,808 | $118K |
| State Street Corp. | 0.00% | New | 22,534 | $103K |
| BlackRock, Inc. | 0.00% | Add +33653.8% | 21,940 | $100K |
| Northern Trust Corp. | 0.00% | New | 17,860 | $82K |
| Bank of America Corp. | 0.00% | Add +57775.9% | 16,784 | $77K |
| Two Sigma Investments, LP | 0.00% | New | 14,972 | $69K |
| Investment House LLC | 0.00% | New | 10,625 | $49K |
| Jane Street Group, LLC | 0.00% | New | 10,562 | $48K |
| JPMorgan Chase & Co. | 0.00% | New | 7,537 | $35K |
| Larson Financial Group LLC | 0.00% | New | 4,303 | $20K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -28.3% | 1,051 | $5K |
| Summit Securities Group LLC | 0.00% | New | 1,000 | $5K |
| Advisory Services Network, LLC | 0.00% | New | 636 | $3K |
| UBS Group AG | 0.00% | Reduce -95.8% | 277 | $1K |
| Golden State Wealth Management, LLC | 0.00% | New | 202 | $925 |
| Citigroup Inc. | 0.00% | New | 134 | $614 |
| Osaic Holdings, Inc. | 0.00% | New | 175 | $568 |
| Carolina Wealth Advisors, LLC | 0.00% | No change | 32 | $147 |
"% of holder's portfolio" is SONN's weight in each manager's 13F, not the share of Sonnet Biotherapeutics Holdi the manager owns.