SIGA Technologies, Inc.
US ˙ NasdaqGM ˙ US8269171067

SecuritySIGA / SIGA Technologies, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership7,969 shares
Latest Disclosed Value $ 48,691
Parallel Advisors, LLC reports 47.03% increase in ownership of SIGA / SIGA Technologies, Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 7,969 shares of SIGA Technologies, Inc. (US:SIGA) valued at $48,691 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 5,420 shares of SIGA Technologies, Inc.. This represents a change in shares of 47.03% during the quarter. The current value of the position is $34,187 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-11 2025-12-31 13F S I G A TECHNOLOGIES Stock 826917106 7,969 2,549 47.03 49 -2.04 0.0009
2025-11-13 2025-09-30 13F S I G A TECHNOLOGIES Stock 826917106 5,420 159 3.02 50 44.12 0.0009
2025-07-08 2025-06-30 13F S I G A TECHNOLOGIES Stock 826917106 5,261 1,057 25.14 34 47.83 0.0007
2025-04-08 2025-03-31 13F S I G A TECHNOLOGIES Stock 826917106 4,204 3,926 1,412.23 23 2,200.00 0.0005
2025-02-10 2024-12-31 13F S I G A TECHNOLOGIES Stock 826917106 278 -3,318 -92.27 2 -95.83 0.0000
2024-11-13 2024-09-30 13F S I G A TECHNOLOGIES Stock 826917106 3,596 3,373 1,512.56 24 2,300.00 0.0006
2024-08-08 2024-06-30 13F S I G A TECHNOLOGIES Stock 826917106 223 0 0.00 2 0.00 0.0000
2024-05-06 2024-03-31 13F S I G A TECHNOLOGIES Stock 826917106 223 183 457.50 2 0.0001
2024-02-12 2023-12-31 13F S I G A TECHNOLOGIES Stock 826917106 40 -973 -96.05 0 -100.00 0.0000
2024-05-20 2023-09-30 13F/A-1 S I G A TECHNOLOGIES Stock 826917106 1,013 937 1,232.89 5 0.0002
2023-11-14 2023-09-30 13F S I G A TECHNOLOGIES Stock 826917106 1,013 937 5 0.0002
2024-05-20 2023-06-30 13F/A-1 S I G A TECHNOLOGIES Stock 826917106 76 -63 -45.32 0 0.0000
2023-08-04 2023-06-30 13F S I G A TECHNOLOGIES Stock 826917106 76 -63 0 0.0000
2024-05-20 2023-03-31 13F/A-1 S I G A TECHNOLOGIES Stock 826917106 139 139 1 0.0000
2023-04-25 2023-03-31 13F S I G A TECHNOLOGIES Stock 826917106 139 139 1 0.0000
2023-02-03 2022-12-31 13F S I G A TECHNOLOGIES Stock 826917106 0 -12 -100.00 0 0.0000
2022-11-10 2022-09-30 13F S I G A TECHNOLOGIES Stock 826917106 12 12 0 0.0000
2022-04-28 2022-03-31 13F S I G A TECHNOLOGIES Stock 826917106 0 -795 -100.00 0 -100.00
2022-01-20 2021-12-31 13F S I G A TECHNOLOGIES Stock 826917106 795 -40 -4.79 6 0.00 0.0002
2021-11-02 2021-09-30 13F/A-1 S I G A TECHNOLOGIES Stock 826917106 835 835 6 0.0002
2021-08-06 2021-06-30 13F S I G A TECHNOLOGIES Stock 826917106 0 -6,460 -100.00 0 -100.00
2021-04-23 2021-03-31 13F S I G A TECHNOLOGIES Stock 826917106 6,460 -1,540 -19.25 42 -27.59 0.0020
2021-02-02 2020-12-31 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 58 5.45 0.0031
2020-10-27 2020-09-30 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 55 17.02 0.0034
2020-07-16 2020-06-30 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 47 23.68 0.0031
2020-04-27 2020-03-31 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 38 0.00 0.0031
2020-01-30 2019-12-31 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 38 -7.32 0.0029
2019-11-01 2019-09-30 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 41 -8.89 0.0035
2019-08-05 2019-06-30 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 45 -6.25 0.0044
2019-05-01 2019-03-31 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 48 -23.81 0.0054
2019-02-05 2018-12-31 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 63 14.55 0.0088
2018-11-01 2018-09-30 13F S I G A TECHNOLOGIES Stock 826917106 8,000 0 0.00 55 17.02 0.0068
2018-07-30 2018-06-30 13F S I G A TECHNOLOGIES Stock 826917106 8,000 8,000 47 0.0067
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.