ATOSSA THERAPEUTICS, INC. - Common Stock (ATOS)

Historical Holders from Q2 2018 to Q3 2025

Symbol: ATOS on Nasdaq
Type / Class: Equity / Common Stock
Shares outstanding: 129,337,627
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares, excl. options: 19,380,482
Holdings value: $16,800,163
% of all portfolios: 0%
Number of holders: 63
Number of buys: 20
Number of sells: -49
Average buys %: +0%
Average sells %: -0%

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of ATOSSA THERAPEUTICS, INC. - Common Stock (ATOS)

Filer	Ownership	Holdings Value	Nb Shares	Reporting Name	Report Period
VANGUARD GROUP INC	4.51%	$4,841,495	5,833,127	The Vanguard Group	30 Jun 2025
CVI Investments, Inc.	4.3%	$4,530,000	5,662,500	CVI Investments, Inc.	31 Dec 2024
BlackRock, Inc.	1.6%	$1,717,392	2,094,891	BlackRock, Inc.	30 Jun 2025

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

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price	Investors
2025 Q3	19,380,482	$16,800,163	-$1,649,339	$85,931	$69,163	$0.867	63
2025 Q2	21,349,209	$17,720,003	-$5,653,305	$78,562	$10,541	$0.83	82
2025 Q1	28,359,111	$19,084,789	-$1,341,003	$35,685	$43,491	$0.6729	82
2024 Q4	29,931,066	$28,256,526	+$2,338,368	$85,521	$38,142	$0.9441	83
2024 Q3	27,342,806	$41,556,220	+$1,106,466	$139,415	$707,641	$1.52	85
2024 Q2	26,185,969	$31,162,750	+$6,136,738	$99,484	$480,403	$1.19	74
2024 Q1	19,247,212	$34,645,211	+$6,651,468	$148,320	$171,000	$1.8	64
2023 Q4	15,977,339	$14,108,531	-$98,734	$36,080	$143,616	$0.88	47
2023 Q3	16,179,139	$11,915,565	-$5,714	$47,100	$129,174	$0.7365	50
2023 Q2	16,001,766	$20,161,211	-$384,693	$35,154	$326,434	$1.26	48
2023 Q1	16,381,798	$11,876,091	-$1,061,782	$32,236	$143,214	$0.7249	41
2022 Q4	17,942,376	$9,491,902	-$744,052	$62,086	$217,254	$0.5285	48
2022 Q3	19,012,323	$15,840,090	-$3,865,790	$242,000	$348,000	$0.8332	44
2022 Q2	23,270,576	$25,392,308	-$11,443,285	$325,000	$463,000	$1.09	61
2022 Q1	33,773,484	$42,226,500	-$5,308,588	$610,000	$638,000	$1.25	71
2021 Q4	39,320,369	$63,309,166	+$10,803,111	$1,577,000	$3,563,000	$1.6	82
2021 Q3	30,993,684	$101,545,957	-$24,704,471	$5,654,000	$12,721,000	$3.26	86
2021 Q2	35,452,360	$224,051,807	+$172,782,844	$35,794,000	$42,675,000	$6.32	80
2021 Q1	10,827,609	$22,844,136	+$19,269,267	$1,477,000	$4,432,000	$2.11	50
2020 Q4	1,579,871	$1,500,720	+$453,590	$41,000	$91,000	$0.9496	12
2020 Q3	738,286	$1,785,592	+$1,033,409	$33,000	$61,000	$2.42	21
2020 Q2	311,346	$1,182,680	+$252,483	$40,000	$74,000	$3.79	9
2020 Q1	239,786	$319,620	-$72,670		$0	$1.33	7
2019 Q4	300,532	$471,410	+$55,888		$17,000	$1.57	11
2019 Q3	261,639	$513,480	+$3,000		$24,000	$1.96	10
2019 Q2	253,600	$647,150	-$201,112		$43,000	$2.55	8
2019 Q1	307,555	$764,360	-$504,032			$3.5	9
2018 Q4	781,895	$798,000	+$220,145			$1.02	13
2018 Q3	566,336	$990,000	-$8,444			$1.74	7
2018 Q2	534,782	$1,176,000	+$1,176,000			$2.19	9