Atossa Therapeutics, Inc.
MX ˙ BMV ˙ US04962H5063
SecurityMX:ATOS / Atossa Therapeutics, Inc.
InstitutionGroup One Trading, L.p.
Group One Trading, L.p. ownership in ATOS / Atossa Therapeutics, Inc.

Group One Trading, L.p. has a history of taking positions in derivatives of the underlying security (ATOS) in the form of stock options. The firm currently holds call options representing 67,300 of underlying shares valued at $39,707 USD and put options representing 33,600 of underlying shares valued at $19,824 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:ATOS / Atossa Therapeutics, Inc. Historical Put/Call Ratio
Disclosed Call Options
File
Date		 Effective
Date		Form Security Class ID Opt Avg Share
Price		 Shares ΔShares
(%)		 Value
(x1000)		 ΔValue
(%)		 Prior Allocation
(%)		 Allocation
(%)		 ΔAllocation
(%)		 Cost Basis
(x1000)		 Profit
(x1000)		 Return
(%)
2026-02-11 2025-12-31 13F ATOSSA THERAPEUTICS COM Call 67,300 -60.13 40 -73.29 n/a n/a n/a
2025-11-12 2025-09-30 13F ATOSSA THERAPEUTICS COM Call 168,800 16.33 146 21.67 n/a n/a n/a
2025-08-14 2025-06-30 13F ATOSSA THERAPEUTICS COM Call 145,100 106.11 120 155.32 n/a n/a n/a
2025-05-14 2025-03-31 13F ATOSSA THERAPEUTICS COM Call 70,400 -3.69 47 -31.88 n/a n/a n/a
2025-05-14 2024-12-31 13F/A ATOSSA THERAPEUTICS COM Call 73,100 -7.47 69 -42.50 n/a n/a n/a
2025-02-14 2024-12-31 13F ATOSSA THERAPEUTICS COM Call 73,100 69 n/a n/a n/a
2024-11-14 2024-09-30 13F ATOSSA THERAPEUTICS COM Call 79,000 -34.17 120 -15.49 n/a n/a n/a
2024-08-14 2024-06-30 13F ATOSSA THERAPEUTICS COM Call 120,000 -8.95 143 -40.08 n/a n/a n/a
2024-05-10 2024-03-31 13F ATOSSA THERAPEUTICS COM Call 131,800 -60.23 237 -18.56 n/a n/a n/a
2024-02-14 2023-12-31 13F ATOSSA THERAPEUTICS COM Call 331,400 104.82 292 144.54 n/a n/a n/a
2023-11-09 2023-09-30 13F ATOSSA THERAPEUTICS COM Call 161,800 1.25 119 -40.80 n/a n/a n/a
2023-08-09 2023-06-30 13F ATOSSA THERAPEUTICS COM Call 159,800 5.83 201 84.40 n/a n/a n/a
2023-05-12 2023-03-31 13F ATOSSA THERAPEUTICS COM Call 151,000 -81.92 109 -75.28 n/a n/a n/a
2023-02-09 2022-12-31 13F ATOSSA THERAPEUTICS COM Call 835,200 1.64 441 -35.62 n/a n/a n/a
2022-11-09 2022-09-30 13F ATOSSA THERAPEUTICS COM Call 821,700 -4.51 685 -26.97 n/a n/a n/a
2022-08-11 2022-06-30 13F ATOSSA THERAPEUTICS COM Call 860,500 -22.87 938 -32.76 n/a n/a n/a
2022-05-12 2022-03-31 13F ATOSSA THERAPEUTICS COM Call 1,115,600 -56.10 1,395 -65.69 n/a n/a n/a
2022-02-11 2021-12-31 13F ATOSSA THERAPEUTICS COM Call 2,541,400 -23.38 4,066 -62.40 n/a n/a n/a
2021-11-12 2021-09-30 13F ATOSSA THERAPEUTICS COM Call 3,317,100 -12.87 10,814 -55.06 n/a n/a n/a
2021-08-10 2021-06-30 13F ATOSSA THERAPEUTICS COM Call 3,807,100 88.23 24,061 463.75 n/a n/a n/a
2021-05-12 2021-03-31 13F ATOSSA THERAPEUTICS COM Call 2,022,600 -46.87 4,268 -82.26 n/a n/a n/a
2021-02-10 2020-12-31 13F ATOSSA THERAPEUTICS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-12 2020-09-30 13F ATOSSA THERAPEUTICS COM Call 900 0.00 2 -33.33 n/a n/a n/a
2020-08-13 2020-06-30 13F ATOSSA THERAPEUTICS COM Call 900 3 n/a n/a n/a
Disclosed Put Options
File
Date		 Effective
Date		Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)		 Value
(x1000)		 ΔValue
(%)		 Prior Allocation
(%)		 Allocation
(%)		 ΔAllocation
(%)		 Cost Basis
(x1000)		 Profit
(x1000)		 Return
(%)
2026-02-11 2025-12-31 13F ATOSSA THERAPEUTICS COM Put 33,600 0.30 20 -34.48 n/a n/a n/a
2025-11-12 2025-09-30 13F ATOSSA THERAPEUTICS COM Put 33,500 132.64 29 163.64 n/a n/a n/a
2025-08-14 2025-06-30 13F ATOSSA THERAPEUTICS COM Put 14,400 -54.14 12 -47.62 n/a n/a n/a
2025-05-14 2025-03-31 13F ATOSSA THERAPEUTICS COM Put 31,400 60.20 21 16.67 n/a n/a n/a
2025-05-14 2024-12-31 13F/A ATOSSA THERAPEUTICS COM Put 19,600 4.26 19 -35.71 n/a n/a n/a
2025-02-14 2024-12-31 13F ATOSSA THERAPEUTICS COM Put 19,600 19 n/a n/a n/a
2024-11-14 2024-09-30 13F ATOSSA THERAPEUTICS COM Put 18,800 29 n/a n/a n/a
2024-08-14 2024-06-30 13F ATOSSA THERAPEUTICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-10 2024-03-31 13F ATOSSA THERAPEUTICS COM Put 5,800 152.17 10 400.00 n/a n/a n/a
2024-02-14 2023-12-31 13F ATOSSA THERAPEUTICS COM Put 2,300 -60.34 2 -50.00 n/a n/a n/a
2023-11-09 2023-09-30 13F ATOSSA THERAPEUTICS COM Put 5,800 152.17 4 100.00 n/a n/a n/a
2023-08-09 2023-06-30 13F ATOSSA THERAPEUTICS COM Put 2,300 -14.81 3 100.00 n/a n/a n/a
2023-05-12 2023-03-31 13F ATOSSA THERAPEUTICS COM Put 2,700 -86.29 2 -90.00 n/a n/a n/a
2023-02-09 2022-12-31 13F ATOSSA THERAPEUTICS COM Put 19,700 -89.03 10 -93.33 n/a n/a n/a
2022-11-09 2022-09-30 13F ATOSSA THERAPEUTICS COM Put 179,500 -16.94 150 -36.44 n/a n/a n/a
2022-08-11 2022-06-30 13F ATOSSA THERAPEUTICS COM Put 216,100 -48.54 236 -55.05 n/a n/a n/a
2022-05-12 2022-03-31 13F ATOSSA THERAPEUTICS COM Put 419,900 -34.08 525 -48.48 n/a n/a n/a
2022-02-11 2021-12-31 13F ATOSSA THERAPEUTICS COM Put 637,000 -28.72 1,019 -65.02 n/a n/a n/a
2021-11-12 2021-09-30 13F ATOSSA THERAPEUTICS COM Put 893,600 -67.31 2,913 -83.14 n/a n/a n/a
2021-08-10 2021-06-30 13F ATOSSA THERAPEUTICS COM Put 2,733,300 2,295.53 17,274 7,067.63 n/a n/a n/a
2021-05-12 2021-03-31 13F ATOSSA THERAPEUTICS COM Put 114,100 241 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.