Atossa Therapeutics ATOS Insider Ownership

NASDAQ ATOS
$2.59 -0.05 (-1.89%)
At close: Aug 20, 2026 · 4:00 PM EDT

Historic Insider Ownership Trends

As of August 04, 2026, the three largest insider holders of ATOS are Steven C Quay (President Ceo, 88.04K shares), Mark James Daniel (Chief Financial Officer, 63.00K shares), Jonathan Finn (Director, 1.67K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Steven C Quay President Ceo 88,038 0 31 Mar, 2026
Gregory L Weaver Former Evp, Cfo, Director 4 0 17 Nov, 2023
H. Lawrence Remmel - 684 0 28 Mar, 2025
Jonathan Finn - 1,667 0 11 Apr, 2024
Mark James Daniel Chief Financial Officer 63,000 0 30 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
27 Mar, 2026 Steven C Quay Common Stock A 65,000 $0.00 88,038 D A
27 Mar, 2026 Steven C Quay Common Stock A 65,000 $0.00 88,038 D A
27 Mar, 2026 Steven C Quay Common Stock A 65,000 $0.00 88,038 D A
26 Mar, 2026 Mark James Daniel Common Stock A 63,000 $0.00 63,000 D A
26 Mar, 2026 Mark James Daniel Common Stock A 63,000 $0.00 63,000 D A
26 Mar, 2026 Mark James Daniel Common Stock A 63,000 $0.00 63,000 D A
20 Jan, 2026 Steven C Quay Common Stock A 331,674 $0.00 23,038 D A
20 Jan, 2026 Steven C Quay Common Stock A 331,674 $0.00 23,038 D A
20 Jan, 2026 Steven C Quay Common Stock A 331,674 $0.00 23,038 D A
20 Jan, 2026 Steven C Quay Stock Options (right to buy) A 950,000 $0.60 63,333 D A
20 Jan, 2026 Steven C Quay Stock Options (right to buy) A 950,000 $0.60 63,333 D A
20 Jan, 2026 Steven C Quay Stock Options (right to buy) A 950,000 $0.60 63,333 D A
20 Jan, 2026 Steven C Quay Common Stock A 325,203 $0.00 22,607 D A
20 Jan, 2026 Steven C Quay Common Stock A 325,203 $0.00 22,607 D A
20 Jan, 2026 Steven C Quay Common Stock A 325,203 $0.00 22,607 D A
20 Jan, 2026 Steven C Quay Stock Options (right to buy) A 950,000 $0.60 63,333 D A
20 Jan, 2026 Steven C Quay Stock Options (right to buy) A 950,000 $0.60 63,333 D A
20 Jan, 2026 Steven C Quay Stock Options (right to buy) A 950,000 $0.60 63,333 D A
14 Oct, 2025 Mark James Daniel Stock Option (right to buy) A 578,000 $0.00 38,533 D A
14 Oct, 2025 Mark James Daniel Stock Option (right to buy) A 578,000 $0.00 38,533 D A