Atossa Therapeutics, Inc.
ATOS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001488039
No open-market purchases or sales by Atossa Therapeutics, Inc. insiders were filed in the last 90 days; 31 institutions reported holding it in 13F filings for Q2 2026, worth $2.60M in total; no superinvestor holds it.
Q2 2026 vs. Q1 2026
How the institutions holding Atossa Therapeutics, Inc. changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Q2 2026 | Change |
|---|---|---|---|
| Holders | 33 | 31 | −2 |
| Shares | 1.24M | 1.35M | +105.3K (+8.5%) |
| Value | $6.52M | $2.60M | −$3.92M (−60.2%) |
New holders (5)
Institutions that held Atossa Therapeutics, Inc. at the end of Q2 2026 but not at the end of Q1 2026.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Jane Street Group, LLC | 56,602 | $109.2K | 0.00% |
| Susquehanna International Group, LLP | 15,574 | $30.1K | 0.00% |
| MCF Advisors LLC | 1,066 | $2.06K | 0.00% |
| Caitong International Asset Management Co., Ltd | 6 | $12 | 0.00% |
| Bessemer Group Inc | 6 | $0 | 0.00% |
Sold out (7)
Institutions that held Atossa Therapeutics, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Tower Research Capital LLC (TRC) | 863 | $4.54K |
| GWM Advisors LLC | 333 | $1.75K |
| Avion Wealth | 318 | $1.00K |
| Robinswood Financial LLC | 170 | $894 |
| North Star Investment Management Corp. | 80 | $421 |
| Northwestern Mutual Wealth Management Co | 46 | $242 |
| Allworth Financial LP | 46 | $242 |