Security key
04962H704
- Security type / class
- Equity / COM
- Total 13F shares
- 1,345,277
- Total 13F value
- $2,596,510
- Share change
- +105,309
- Put/Call ratio
- 0%
- SEC-reported price per share
- $1.93
- Number of holders
- 30
- Value change
- +$197,842
- Number of buys
- 13
- Number of sells
- 14
Open additional details 1 more signal available
Report period
Q2 2026
Institutions
30
Top holders
10
ATOS full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
ATOSSA THERAPEUTICS, INC. SEC filings
ATOSSA THERAPEUTICS, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 04962H704
Recent filing periods:
Ownership snapshot
Top reported holders of ATOS - ATOSSA THERAPEUTICS, INC. - COM (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
3/15
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 4.5%
12 rows are not safely comparable across share classes.
13D/G row: VANGUARD GROUP INC
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 4.5%.
3 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD GROUP INC's linked filing trail.
Comparable ownership
Top 3
VANGUARD GROUP INC
4.5%
CVI Investments, Inc.
4.3%
BlackRock, Inc.
1.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
4.5%
|
$4,841,495
5,833,127 shares
|
$0 | 30 Jun 2025 |
| CVI Investments, Inc. |
13D/G
|
4.3%
|
$4,530,000
5,662,500 shares
|
$0 | 31 Dec 2024 |
| BlackRock, Inc. |
13D/G
13F
Company
|
1.6%
|
$1,717,392
2,094,891 shares
|
$0 | 30 Jun 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$1,836,245
349,096 shares
|
— | 31 Mar 2026 |
| AMERIPRISE FINANCIAL INC |
13F
Company
|
—
class O/S missing
|
$1,342,005
255,134 shares
|
— | 31 Mar 2026 |
| Steven C. Quay |
3/4/5
President & CEO, Director
|
—
mixed-class rows
|
$625,666
2,405,583 shares
mixed-class rows
|
— | 27 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
30
Shares
1,345,277
Rows available
30
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q4 2025 Across Filers
Q4 2025 holders
1
Q2 2026 holders
30
Holder diff
29
| Investor | Q4 2025 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend