ATOS (Atossa Therapeutics) Institutional Ownership: 19.17% (As of Jun. 29, 2026)


ATOS Atossa Therapeutics Inc ATOS
26 GF Score
Price $1.97
! 2 Warning Signs
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What is Atossa Therapeutics Institutional Ownership?

Atossa Therapeutics ATOS +6.45% 26 Institutional Ownership is 19.17% as of Jun. 29, 2026. GuruFocus rates ATOS with a GF Score™ of 26/100. The stock has 2 warning signs investors should review.

Institutional ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, Atossa Therapeutics's institutional ownership is 19.17%.

Insider Ownership is the percentage of shares that are owned by company insiders relative to the total shares outstanding. As of today, Atossa Therapeutics's Insider Ownership is 3.06%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, Atossa Therapeutics's Float Percentage Of Total Shares Outstanding is 99.98%.

Atossa Therapeutics Institutional Ownership Historical Data

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The historical data trend for Atossa Therapeutics's Institutional Ownership can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Atossa Therapeutics Institutional Ownership Chart

Atossa Therapeutics Historical Data

The historical data trend for Atossa Therapeutics can be seen below:

2025-08-31 2025-09-30 2025-10-31 2025-11-30 2025-12-31 2026-01-31 2026-02-28 2026-03-31 2026-04-30 2026-05-31
Institutional Ownership 13.30 13.18 13.73 13.69 14.28 14.30 11.81 10.88 10.59 10.59
ATOS
26GF Score
Atossa Therapeutics Inc ATOS
Institutional Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
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Atossa Therapeutics Institutional Ownership Calculation

The percentage of shares that are owned by institutions out of the total shares outstanding.

What does a Institutional Ownership of 19.17% mean?
Atossa Therapeutics (ATOS) has a Institutional Ownership of 19.17% as of Jun. 29, 2026. Institutional ownership equals the percent of shares owned by financial institutions relative to total shares. View historical data on Atossa Therapeutics and its competitors.
Is Atossa Therapeutics' Institutional Ownership too high?
Atossa Therapeutics' current Institutional Ownership is 19.17%. Overall, Atossa Therapeutics has a GF Score™ of 26/100, reflecting its overall financial health beyond just this single metric.
How does Atossa Therapeutics' Institutional Ownership compare to QNCX and ZIVO?
Atossa Therapeutics' Institutional Ownership of 19.17% can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Institutional Ownership for a Biotechnology company?
A good Institutional Ownership depends on the Biotechnology industry context. However, Institutional Ownership should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Institutional Ownership mean?
A high Institutional Ownership can signal that a stock is expensive relative to its fundamentals. Institutional ownership equals the percent of shares owned by financial institutions relative to total shares. View historical data on Atossa Therapeutics and its competitors. Atossa Therapeutics's current Institutional Ownership is 19.17%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Atossa Therapeutics stock overvalued right now?
Atossa Therapeutics (ATOS) has a current Institutional Ownership of 19.17%. The current Institutional Ownership is 19.17%. Atossa Therapeutics' overall GF Score™ is 26/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Institutional Ownership calculated?
Institutional Ownership is calculated from a company's financial statements. For Atossa Therapeutics (ATOS), the current Institutional Ownership is 19.17% as of Jun. 29, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Atossa Therapeutics Business Description

Other Exchanges ATOS:MexicoYAG:Germany
Address 1448 NW Market Street, Suite 500, Seattle, WA, USA, 98107
Atossa Therapeutics Inc is a clinical-stage biopharmaceutical company engaged in the development of proprietary medicines for oncology, with a focus on breast cancer and related conditions. The company's lead product candidate, oral (Z)-endoxifen, is a selective estrogen receptor modulator and degrader (SERM/SERD) in Phase 2 clinical development, being evaluated for the treatment and prevention of breast cancer and other indications.
26GF Score

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Institutional Ownership is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

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