How many institutional investors hold ATOS?

3 tracked institutional investors disclosed a position in ATOS (ATOSSA THERAPEUTICS INC) in their most recent 13F filing.

Who is the largest institutional holder of ATOS?

Izzy Englander, Millennium Management, holds the largest disclosed position in ATOS, valued at $733,292.

Where does this ATOS ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

ATOS — ATOSSA THERAPEUTICS INC

Name: ATOSSA THERAPEUTICS INC (ATOS) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About ATOSSA THERAPEUTICS INC (ATOS)

ATOSSA THERAPEUTICS INC (ATOS) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $733,292. Across recent filings, tracked investors recorded 3 new positions, 0 increased, 0 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ATOS

100

/100

Strong Institutional Accumulation

Added / Increased3

Reduced0

Exited0

BearishBullish

Crowded Trade Score™

How many top investors track ATOS

/100

Emerging Interest

3investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

ATOS Ownership Composition

How ATOSSA THERAPEUTICS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Other

98% of tracked value

Institutions

tracked investors

Total Reported

$1.2M

combined 13F value

Other97.7%
Hedge Funds2.3%

Other(2)

97.7%

Hedge Funds(1)

2.3%

Tracked investors reporting ATOS

Investor	Firm	Shares	Market value	% of portfolio	As of
Izzy Englander	Millennium Management	1.2M	$733.3K	0.00%	Dec 31, 2025
Ken Griffin	Citadel Advisors	765.7K	$451.8K	0.00%	Dec 31, 2025
Steve Cohen	Point72 Asset Management	48.1K	$28.4K	0.00%	Dec 31, 2025

Izzy EnglanderDec 31, 2025
Millennium Management
Shares
1.2M
Value
$733.3K
% Portfolio
0.00%
Ken GriffinDec 31, 2025
Citadel Advisors
Shares
765.7K
Value
$451.8K
% Portfolio
0.00%
Steve CohenDec 31, 2025
Point72 Asset Management
Shares
48.1K
Value
$28.4K
% Portfolio
0.00%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Izzy Englander	New	—	$733.3K	Feb 17, 2026
Steve Cohen	New	—	$28.4K	Feb 17, 2026
Ken Griffin	New	—	$279.4K	Nov 14, 2025

Izzy Englander
New
$733.3KFeb 17, 2026
Steve Cohen
New
$28.4KFeb 17, 2026
Ken Griffin
New
$279.4KNov 14, 2025

Frequently asked questions

How many institutional investors hold ATOS?: 3 tracked institutional investors disclosed a position in ATOS (ATOSSA THERAPEUTICS INC) in their most recent 13F filing.
Who is the largest institutional holder of ATOS?: Izzy Englander, Millennium Management, holds the largest disclosed position in ATOS, valued at $733,292.
Did institutional ownership of ATOS increase or decrease?: Across recent 13F filings, tracked investors recorded 3 new positions, 0 increased, 0 reduced, and 0 fully exited ATOS.
Where does this ATOS ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.