ATOS
Atossa Therapeutics, Inc.Closed2.56+0.17 +7.17%USD
NasdaqCM · as of Oct 13, 16:00 ET · 15m delayAfter hours 2.49 −2.63%
Open
2.35
Prev close
2.39
Day range
2.302.60
52-week range
1.7016.50
Volume
70.74K1.11×
Mkt cap
25.55M
P/E ttm
—
Fwd P/E
-0.78
EPS ttm
-4.45
Div yield
0.00%
Earnings
—
From 52w high
−84.48%
ATOS shareholders
ATOS Ownership
13F / N-PORT filings via Yahoo
Institutions
13.6%
13.9% of the float
Insiders
1.8%
officers and directors
Institutional holders
40
filing positions
Top 10 institutions
12.9%
6 adding · 3 trimming
Top Institutions
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 3.62% | 361.75K | $926.07K | +3.6% | Jun 30, 2026 |
| Ameriprise Financial, Inc. | 2.59% | 258.23K | $661.08K | +1.2% | Jun 30, 2026 |
| Blackrock Inc. | 1.65% | 164.36K | $420.76K | +23.4% | Jun 30, 2026 |
| Renaissance Technologies, LLC | 1.32% | 132.04K | $338.03K | +21.1% | Jun 30, 2026 |
| Geode Capital Management, LLC | 0.93% | 92.38K | $236.50K | −4.8% | Jun 30, 2026 |
| UBS Group AG | 0.83% | 82.62K | $211.51K | −10.2% | Jun 30, 2026 |
| Jane Street Group, LLC | 0.57% | 56.60K | $144.90K | +100.0% | Jun 30, 2026 |
| Vanguard Fiduciary Trust Co | 0.53% | 52.58K | $134.61K | +0.7% | Jun 30, 2026 |
| Millennium Management Llc | 0.47% | 46.51K | $119.06K | −30.3% | Jun 30, 2026 |
| State Street Corporation | 0.40% | 39.76K | $101.79K | 0.0% | Jun 30, 2026 |
Top Funds
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 2.57% | 256.14K | $655.71K | 0.0% | Jun 30, 2026 |
| Columbia Funds Series Trust I-Columbia Small Cap Value Discovery Fund | 2.02% | 201.43K | $515.67K | +6.5% | Jul 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 0.99% | 99.07K | $253.62K | +14.6% | Jun 30, 2026 |
| Fidelity Concord Street Trust-Fidelity Extended Market Index Fund | 0.45% | 44.73K | $114.50K | −0.5% | Aug 31, 2026 |
| Columbia Fd.s Varbl Insurance TRT-Columbia Varbl PORT. - Small Cap Val | 0.36% | 36.38K | $93.14K | −4.0% | Jun 30, 2026 |
| iShares Trust-iShares Micro-Cap ETF | 0.29% | 29.01K | $74.27K | +0.7% | Aug 31, 2026 |
| Fidelity Concord Street Trust-Fidelity Total Market Index Fund | 0.14% | 14.38K | $36.82K | 0.0% | Aug 31, 2026 |
| Fidelity Concord Street Trust-Fidelity Series Total Market Index Fund | 0.13% | 12.64K | $32.37K | 0.0% | Aug 31, 2026 |
| VANGUARD VALLEY FORGE FUNDS-Vanguard Balanced Index Fund | 0.07% | 6.54K | $16.74K | 0.0% | Jun 30, 2026 |
| Fidelity Concord Street Trust-Fidelity Nasdaq Composite Index Fund | 0.05% | 4.91K | $12.56K | 0.0% | Aug 31, 2026 |
Institutions report quarterly, up to 45 days after the quarter ends, so these positions can be months old. Change compares the share count with the holder's previous filing. Insider transactions are on the overview page (INSD).