Skip to main content

Atossa Therapeutics, Inc.

ATOS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001488039

No open-market purchases or sales by Atossa Therapeutics, Inc. insiders were filed in the last 90 days; 31 institutions reported holding it in 13F filings for Q2 2026, worth $2.60M in total; no superinvestor holds it.

Q2 2025 vs. Q1 2025

How the institutions holding Atossa Therapeutics, Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of ATOS: Q1 2025 compared with Q2 2025
MeasureQ1 2025Q2 2025Change
Holders8384+1
Shares28.4M21.3M−7.01M (−24.7%)
Value$19.1M$17.7M−$1.36M (−7.2%)

New holders (29)

Institutions that held Atossa Therapeutics, Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to ATOS in Q2 2025
InstitutionSharesValue% of portfolio
Ameriprise Financial Inc2,973,205$2.47M0.00%
Millennium Management LLC2,047,535$1.70M0.00%
Jane Street Group, LLC458,729$380.7K0.00%
Y-Intercept (Hong Kong) Ltd386,334$320.7K0.01%
Aster Capital Management (DIFC) Ltd144,853$120.2K0.03%
Jain Global LLC123,054$102.1K0.00%
HRT Financial LP95,094$78.0K0.00%
Point72 Asia (Singapore) Pte. Ltd.88,212$73.2K0.01%
Citadel Advisors LLC86,918$72.1K0.00%
Catalyst Funds Management Pty Ltd59,300$49.2K0.01%
Gsa Capital Partners LLP51,029$42.0K0.00%
Virtu Financial LLC36,768$31.0K0.00%
Hudson Bay Capital Management LP31,235$25.9K0.00%
Schonfeld Strategic Advisors LLC27,168$22.5K0.00%
Jump Financial, LLC25,351$21.0K0.00%
Two Sigma Securities, LLC22,220$18.4K0.00%
Ground Swell Capital, LLC19,990$16.6K0.03%
Alpine Global Management, LLC16,356$13.6K0.00%
Marshall Wace, LLP13,400$11.1K0.00%
ExodusPoint Capital Management, LP13,516$11.0K0.00%
XTX Topco Ltd12,537$10.4K0.00%
Cubist Systematic Strategies, LLC11,112$9.22K0.00%
Guerra Advisors Inc10,250$8.51K0.00%
Point72 (DIFC) Ltd8,362$6.94K0.00%
Baader Bank INC10,000$5.13K0.00%
Skopos Labs, Inc.627$5210.00%
Mount Yale Investment Advisors, LLC500$4150.00%
Twin Peaks Wealth Advisors, LLC100$770.00%
Essential Partners LLC15$120.00%

Sold out (28)

Institutions that held Atossa Therapeutics, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.