福圖納礦業公司
US ˙ NYSE

SecurityFSM / Fortuna Mining Corp.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership65,482 shares
Latest Disclosed Value $ 650,236
Simplex Trading, Llc ownership in FSM / Fortuna Mining Corp.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 65,482 shares of Fortuna Mining Corp. (US:FSM) valued at $650,236 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 10,934 shares of Fortuna Mining Corp.. This represents a change in shares of 498.88% during the quarter. The current value of the position is $618,805 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (FSM) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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 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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Institutional Put/Call Ratios
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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.

FSM / Fortuna Mining Corp. Historical Put/Call Ratio
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)
2026-05-14 2026-03-31 13F FORTUNA MNG COM 349942102 65,482 54,548 498.88 650 507.48 0.0002
2026-02-11 2025-12-31 13F FORTUNA MNG COM 349942102 10,934 10,934 107 0.0001
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
(%)
2024-07-25 2024-06-30 13F FORTUNA SILVER MINES CALL Call 0 -100.00 0 n/a n/a n/a
2024-04-25 2024-03-31 13F FORTUNA SILVER MINES CALL Call 96,100 -57.14 0 n/a n/a n/a
2024-02-02 2023-12-31 13F FORTUNA SILVER MINES CALL Call 224,200 -23.27 1 n/a n/a n/a
2023-11-01 2023-09-30 13F FORTUNA SILVER MINES CALL Call 292,200 419.93 1 n/a n/a n/a
2023-08-04 2023-06-30 13F FORTUNA SILVER MINES CALL Call 56,200 13.54 0 n/a n/a n/a
2023-04-27 2023-03-31 13F FORTUNA SILVER MINES CALL Call 49,500 -76.73 0 n/a n/a n/a
2023-02-02 2022-12-31 13F FORTUNA SILVER MINES CALL Call 212,700 96.76 1 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F FORTUNA SILVER MINES CALL Call 108,100 34.45 272 19.30 n/a n/a n/a
2022-08-03 2022-06-30 13F FORTUNA SILVER MINES CALL Call 80,400 -10.77 228 -33.53 n/a n/a n/a
2022-05-02 2022-03-31 13F FORTUNA SILVER MINES CALL Call 90,100 -41.91 343 -43.21 n/a n/a n/a
2022-02-23 2021-12-31 13F/A FORTUNA SILVER MINES CALL Call 155,100 0.13 604 -28.94 n/a n/a n/a
2022-02-04 2021-12-31 13F FORTUNA SILVER MINES CALL Call 154,900 850 n/a n/a n/a
2021-10-28 2021-09-30 13F FORTUNA SILVER MINES CALL Call 154,900 0.00 850 -1.05 n/a n/a n/a
2021-08-12 2021-06-30 13F FORTUNA SILVER MINES CALL Call 154,900 16,239.66 859 40.13 n/a n/a n/a
2021-04-26 2021-03-31 13F FORTUNA SILVER MINES CALL Call 948 -69.64 613 -76.18 n/a n/a n/a
2021-02-02 2020-12-31 13F FORTUNA SILVER MINES CALL Call 3,123 64.63 2,573 113.35 n/a n/a n/a
2020-10-14 2020-09-30 13F FORTUNA SILVER MINES CALL Call 1,897 47.28 1,206 84.12 n/a n/a n/a
2020-07-13 2020-06-30 13F FORTUNA SILVER MINES CALL Call 1,288 21.39 655 167.35 n/a n/a n/a
2020-04-29 2020-03-31 13F FORTUNA SILVER MINES CALL Call 1,061 -30.74 245 -60.80 n/a n/a n/a
2020-02-05 2019-12-31 13F FORTUNA SILVER MINES CALL Call 1,532 67.80 625 121.63 n/a n/a n/a
2019-10-15 2019-09-30 13F FORTUNA SILVER MINES CALL Call 913 489.03 282 540.91 n/a n/a n/a
2019-07-26 2019-06-30 13F FORTUNA SILVER MINES CALL Call 155 1.31 44 -13.73 n/a n/a n/a
2019-04-18 2019-03-31 13F FORTUNA SILVER MINES CALL Call 153 109.59 51 96.15 n/a n/a n/a
2019-01-16 2018-12-31 13F FORTUNA SILVER MINES CALL Call 73 46.00 26 23.81 n/a n/a n/a
2018-10-23 2018-09-30 13F FORTUNA SILVER MINES CALL Call 50 -50.00 21 -62.50 n/a n/a n/a
2018-07-30 2018-06-30 13F FORTUNA SILVER MINES CALL Call 100 669.23 56 166.67 n/a n/a n/a
2018-04-26 2018-03-31 13F FORTUNA SILVER MINES CALL Call 13 -96.50 0 -100.00 n/a n/a n/a
2018-01-10 2017-12-31 13F FORTUNA SILVER MINES CALL Call 371 -11.67 10 42.86 n/a n/a n/a
2017-10-25 2017-09-30 13F FORTUNA SILVER MINES CALL Call 420 2,110.53 7 -30.00 n/a n/a n/a
2017-07-12 2017-06-30 13F FORTUNA SILVER MINES CALL Call 19 -80.41 0 -100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F FORTUNA SILVER MINES CALL Call 97 76.36 0 n/a n/a n/a
2017-01-11 2016-12-31 13F FORTUNA SILVER MINES CALL Call 55 -93.49 0 -100.00 n/a n/a n/a
2016-10-07 2016-09-30 13F FORTUNA SILVER MINES CALL Call 845 455.92 102 827.27 n/a n/a n/a
2016-07-18 2016-06-30 13F FORTUNA SILVER MINES CALL Call 152 1,420.00 11 -89.22 n/a n/a n/a
2016-04-14 2016-03-31 13F FORTUNA SILVER MINES CALL Call 10 -61.54 0 -100.00 n/a n/a n/a
2016-01-20 2015-12-31 13F FORTUNA SILVER MINES CALL Call 26 -65.79 0 n/a n/a n/a
2015-10-08 2015-09-30 13F FORTUNA SILVER MINES CALL Call 76 -18.28 0 -100.00 n/a n/a n/a
2015-07-08 2015-06-30 13F FORTUNA SILVER MINES CALL Call 93 1,760.00 1 n/a n/a n/a
2015-04-21 2015-03-31 13F FORTUNA SILVER MINES CALL Call 5 -86.84 0 -100.00 n/a n/a n/a
2015-03-04 2014-12-31 13F FORTUNA SILVER MINES CALL Call 38 2 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
(%)
2024-07-25 2024-06-30 13F FORTUNA SILVER MINES PUT Put 0 -100.00 0 n/a n/a n/a
2024-04-25 2024-03-31 13F FORTUNA SILVER MINES PUT Put 68,100 -30.23 0 n/a n/a n/a
2024-02-02 2023-12-31 13F FORTUNA SILVER MINES PUT Put 97,600 12.18 0 n/a n/a n/a
2023-11-01 2023-09-30 13F FORTUNA SILVER MINES PUT Put 87,000 -36.50 0 n/a n/a n/a
2023-08-04 2023-06-30 13F FORTUNA SILVER MINES PUT Put 137,000 -2.84 0 n/a n/a n/a
2023-04-27 2023-03-31 13F FORTUNA SILVER MINES PUT Put 141,000 -30.71 1 n/a n/a n/a
2023-02-02 2022-12-31 13F FORTUNA SILVER MINES PUT Put 203,500 3.51 1 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F FORTUNA SILVER MINES PUT Put 196,600 -10.47 495 -20.55 n/a n/a n/a
2022-08-03 2022-06-30 13F FORTUNA SILVER MINES PUT Put 219,600 -14.95 623 -36.62 n/a n/a n/a
2022-05-02 2022-03-31 13F FORTUNA SILVER MINES PUT Put 258,200 45.63 983 42.26 n/a n/a n/a
2022-02-23 2021-12-31 13F/A FORTUNA SILVER MINES PUT Put 177,300 -13.76 691 -38.74 n/a n/a n/a
2022-02-04 2021-12-31 13F FORTUNA SILVER MINES PUT Put 205,600 1,128 n/a n/a n/a
2021-10-28 2021-09-30 13F FORTUNA SILVER MINES PUT Put 205,600 0.19 1,128 -0.88 n/a n/a n/a
2021-08-12 2021-06-30 13F FORTUNA SILVER MINES PUT Put 205,200 17,574.42 1,138 51.53 n/a n/a n/a
2021-04-26 2021-03-31 13F FORTUNA SILVER MINES PUT Put 1,161 5.07 751 -17.47 n/a n/a n/a
2021-02-02 2020-12-31 13F FORTUNA SILVER MINES PUT Put 1,105 -5.64 910 22.31 n/a n/a n/a
2020-10-14 2020-09-30 13F FORTUNA SILVER MINES PUT Put 1,171 19.61 744 49.40 n/a n/a n/a
2020-07-13 2020-06-30 13F FORTUNA SILVER MINES PUT Put 979 72.36 498 280.15 n/a n/a n/a
2020-04-29 2020-03-31 13F FORTUNA SILVER MINES PUT Put 568 -11.25 131 -49.81 n/a n/a n/a
2020-02-05 2019-12-31 13F FORTUNA SILVER MINES PUT Put 640 145.21 261 226.25 n/a n/a n/a
2019-10-15 2019-09-30 13F FORTUNA SILVER MINES PUT Put 261 226.25 80 263.64 n/a n/a n/a
2019-07-26 2019-06-30 13F FORTUNA SILVER MINES PUT Put 80 -33.33 22 -45.00 n/a n/a n/a
2019-04-18 2019-03-31 13F FORTUNA SILVER MINES PUT Put 120 -23.57 40 -29.82 n/a n/a n/a
2019-01-16 2018-12-31 13F FORTUNA SILVER MINES PUT Put 157 1,327.27 57 1,325.00 n/a n/a n/a
2018-10-23 2018-09-30 13F FORTUNA SILVER MINES PUT Put 11 -47.62 4 -63.64 n/a n/a n/a
2018-07-30 2018-06-30 13F FORTUNA SILVER MINES PUT Put 21 90.91 11 175.00 n/a n/a n/a
2018-04-26 2018-03-31 13F FORTUNA SILVER MINES PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-01-10 2017-12-31 13F FORTUNA SILVER MINES PUT Put 63 162.50 0 -100.00 n/a n/a n/a
2017-10-25 2017-09-30 13F FORTUNA SILVER MINES PUT Put 24 -31.43 1 0.00 n/a n/a n/a
2017-07-12 2017-06-30 13F FORTUNA SILVER MINES PUT Put 35 -82.14 1 -95.24 n/a n/a n/a
2017-04-21 2017-03-31 13F FORTUNA SILVER MINES PUT Put 196 308.33 21 320.00 n/a n/a n/a
2017-01-11 2016-12-31 13F FORTUNA SILVER MINES PUT Put 48 585.71 5 n/a n/a n/a
2016-10-07 2016-09-30 13F FORTUNA SILVER MINES PUT Put 7 -96.45 0 -100.00 n/a n/a n/a
2016-07-18 2016-06-30 13F FORTUNA SILVER MINES PUT Put 197 328.26 5 0.00 n/a n/a n/a
2016-04-14 2016-03-31 13F FORTUNA SILVER MINES PUT Put 46 -58.56 5 -82.76 n/a n/a n/a
2016-01-20 2015-12-31 13F FORTUNA SILVER MINES PUT Put 111 362.50 29 262.50 n/a n/a n/a
2015-10-08 2015-09-30 13F FORTUNA SILVER MINES PUT Put 24 71.43 8 700.00 n/a n/a n/a
2015-07-08 2015-06-30 13F FORTUNA SILVER MINES PUT Put 14 0.00 1 0.00 n/a n/a n/a
2015-04-21 2015-03-31 13F FORTUNA SILVER MINES PUT Put 14 1 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.