ATOSSA THERAPEUTICS, INC. - Common Stock (ATOS)

Historical Holders from Q2 2018 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
ATOS on Nasdaq
Shares outstanding
129,337,627
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares as of 30 Sep 2025
19,380,482
Holdings value
$16,800,163
% of all portfolios
0%
Share change
-1,959,628
Value change
-$1,649,344
Average buys %
+0%
Average sells %
-0%
Number of holders
63
Price from insider filings
$0.8797
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of ATOSSA THERAPEUTICS, INC. - Common Stock (ATOS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD GROUP INC 4.5% $5,191,483 5,833,127 The Vanguard Group 30 Jun 2025
CVI Investments, Inc. 4.3% $3,340,875 5,662,500 CVI Investments, Inc. 31 Dec 2024
BlackRock, Inc. 1.6% $1,864,453 2,094,891 BlackRock, Inc. 30 Jun 2025
As of 30 Sep 2025, ATOSSA THERAPEUTICS, INC. - Common Stock (ATOS) has 63 institutional shareholders filing 13F forms. They hold 19,380,482 shares of 129,337,627 outstanding shares (15%) .

Top 25 institutional shareholders own 15% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
VANGUARD GROUP INC 4.7% 6,078,844 +4.2% 0% $5,270,358
AMERIPRISE FINANCIAL INC 2.3% 2,951,505 -0.73% 0% $2,558,955
BlackRock, Inc. 1.5% 1,997,627 -7% 0% $1,731,943
MILLENNIUM MANAGEMENT LLC 1.3% 1,668,648 -19% 0% $1,446,718
RENAISSANCE TECHNOLOGIES LLC 1.2% 1,548,663 -15% 0% $1,342,691
GEODE CAPITAL MANAGEMENT, LLC 1.1% 1,362,282 +4.8% 0% $1,181,392
STATE STREET CORP 0.35% 454,495 -12% 0% $394,047
GSA CAPITAL PARTNERS LLP 0.24% 310,754 +509% 0.02% $269,000
NORTHERN TRUST CORP 0.2% 263,377 0% 0% $228,348
CITADEL ADVISORS LLC 0.2% 263,369 +203% 0% $228,341
UBS Group AG 0.2% 260,722 -37% 0% $226,046
Squarepoint Ops LLC 0.2% 253,343 +40% 0% $219,648
Connor, Clark & Lunn Investment Management Ltd. 0.19% 248,614 +25% 0% $215,548
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.17% 219,602 -20% 0% $190,395
Graham Capital Management, L.P. 0.13% 165,446 0.01% $143,442
JANE STREET GROUP, LLC 0.13% 162,428 -65% 0% $140,825
BANK OF AMERICA CORP /DE/ 0.12% 155,169 +56% 0% $134,532
Qube Research & Technologies Ltd 0.11% 138,643 -67% 0% $120,203
MORGAN STANLEY 0.09% 112,348 -30% 0% $97,406
ACADIAN ASSET MANAGEMENT LLC 0.08% 97,287 0% $82,000
MARSHALL WACE, LLP 0.07% 85,076 +535% 0% $74,015
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.06% 80,000 0% 0% $69,360
COMMONWEALTH EQUITY SERVICES, LLC 0.04% 46,001 0% 0% $40,000
Point72 Asia (Singapore) Pte. Ltd. 0.03% 44,106 -50% 0.01% $38,240
JPMORGAN CHASE & CO 0.03% 38,215 +1294% 0% $33,132

Institutional Holders of ATOSSA THERAPEUTICS, INC. - Common Stock (ATOS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 0 $0 -$26 0
2025 Q3 19,380,482 $16,800,163 -$1,649,344 $0.8670 63
2025 Q2 21,349,209 $17,720,003 -$5,653,305 $0.8300 82
2025 Q1 28,359,111 $19,085,157 -$1,340,997 $0.6729 82
2024 Q4 29,922,566 $28,248,619 +$2,330,371 $0.9441 83
2024 Q3 27,342,806 $41,556,204 +$1,106,538 $1.52 85
2024 Q2 26,186,135 $31,162,567 +$1,349,192 $1.19 76
2024 Q1 1,092,869 $1,967,894 -$436,605 $1.80 8
2023 Q4 15,966,739 $14,099,203 -$66,215 $0.8800 46
2023 Q3 16,166,539 $11,906,279 -$5,713 $0.7365 49
2023 Q2 15,989,166 $20,145,335 -$384,683 $1.26 47
2023 Q1 16,369,198 $11,866,956 -$1,060,783 $0.7249 40
2022 Q4 17,926,476 $9,484,237 -$813,769 $0.5285 46
2022 Q3 18,979,578 $15,812,589 -$3,500,740 $0.8332 40
2022 Q2 23,238,685 $25,357,574 -$11,805,284 $1.09 58
2022 Q1 33,733,618 $42,171,750 -$5,242,855 $1.25 69
2021 Q4 39,090,516 $62,941,006 +$10,699,898 $1.60 79
2021 Q3 30,756,904 $101,060,881 -$24,749,066 $3.26 85
2021 Q2 35,652,118 $225,335,267 +$157,690,021 $6.32 83
2021 Q1 7,607,158 $16,050,000 +$10,272,866 $2.11 48
2020 Q4 1,561,656 $1,483,000 +$453,609 $0.9495 10
2020 Q3 720,071 $1,742,000 +$1,023,730 $2.42 19
2020 Q2 297,746 $1,131,000 +$254,005 $3.79 8
2020 Q1 224,671 $299,000 -$74,001 $1.33 4
2019 Q4 287,032 $450,000 +$55,889 $1.57 10
2019 Q3 248,639 $488,000 +$2,999 $1.96 10
2019 Q2 240,600 $614,000 -$188,363 $2.55 7
2019 Q1 189,555 $666,000 -$602,392 $3.50 7
2018 Q4 781,278 $797,000 +$220,146 $1.02 12
2018 Q3 566,336 $990,000 +$231,557 $1.74 7
2018 Q2 534,782 $1,176,000 +$1,175,986 $2.19 9