Nordic American Tankers Limited
US ˙ NYSE ˙ BMG657731060

SecurityNAT / Nordic American Tankers Limited
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Wolverine Trading, Llc ownership in NAT / Nordic American Tankers Limited

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 0 shares of Nordic American Tankers Limited (US:NAT) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 56,721 shares of Nordic American Tankers Limited. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Wolverine Trading, Llc has a history of taking positions in derivatives of the underlying security (NAT) in the form of stock options. The firm currently holds call options representing 94,300 of underlying shares valued at $290,444 USD and put options representing 47,600 of underlying shares valued at $146,608 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.

NAT / Nordic American Tankers Limited 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)
2025-11-14 2025-09-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -56,721 -100.00 0 -100.00
2025-08-18 2025-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 56,721 12,972 29.65 153 39.09 0.0002
2025-05-15 2025-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 43,749 -16,231 -27.06 110 -24.66 0.0001
2025-02-14 2024-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 59,980 37,006 161.08 147 75.90 0.0001
2024-11-14 2024-09-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 22,974 10,632 86.14 84 69.39 0.0001
2024-08-14 2024-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 12,342 -6,080 -33.00 49 -31.94 0.0001
2024-05-15 2024-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 18,422 -23,318 -55.86 72 -58.86 0.0001
2024-02-14 2023-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 41,740 41,740 175 0.0002
2023-05-15 2023-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -14,401 -100.00 0 -100.00
2023-02-14 2022-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 14,401 -22,842 -61.33 44 -55.56 0.0001
2022-11-14 2022-09-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 37,243 24,659 195.96 99 266.67 0.0002
2022-08-15 2022-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 12,584 12,584 27 0.0000
2022-05-16 2022-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -68,132 -100.00 0 -100.00
2022-02-14 2021-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 68,132 5,838 9.37 113 -28.48 0.0001
2021-11-12 2021-09-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 62,294 20,126 47.73 158 15.33 0.0002
2021-08-06 2021-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 42,168 -44,683 -51.45 137 -52.26 0.0002
2021-05-14 2021-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 86,851 60,274 226.79 287 258.75 0.0004
2021-02-12 2020-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 26,577 26,577 80 0.0001
2020-08-13 2020-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -49,152 -100.00 0 -100.00
2020-05-11 2020-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 49,152 49,152 233 0.0007
2019-08-20 2019-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -14,429 -100.00 0 -100.00
2019-05-15 2019-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 14,429 14,429 29 0.0001
2019-02-13 2018-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -21,825 -100.00 0 -100.00
2018-11-14 2018-09-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 21,825 21,825 46 0.0001
2018-05-15 2018-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -72,311 -100.00 0 -100.00
2018-02-14 2017-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 72,311 72,311 178 0.0006
2017-08-14 2017-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -30,647 -100.00 0 -100.00
2017-05-15 2017-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 30,647 30,647 250 0.0014
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
(%)
2025-11-14 2025-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 94,300 97.69 290 126.56 n/a n/a n/a
2025-08-18 2025-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 47,700 14.39 129 21.90 n/a n/a n/a
2025-05-15 2025-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 41,700 -52.67 105 -51.16 n/a n/a n/a
2025-02-14 2024-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 88,100 0.23 216 -32.60 n/a n/a n/a
2024-11-14 2024-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 87,900 20.58 320 10.00 n/a n/a n/a
2024-08-14 2024-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 72,900 -46.59 290 -45.79 n/a n/a n/a
2024-05-15 2024-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 136,500 -36.86 535 -41.08 n/a n/a n/a
2024-02-14 2023-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 216,200 908 n/a n/a n/a
2023-11-15 2023-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-23 2023-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 205,200 15.74 735 n/a n/a n/a
2023-05-15 2023-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 177,300 4.60 1 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 169,500 -42.56 519 -34.14 n/a n/a n/a
2022-11-14 2022-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 295,100 103.80 788 155.84 n/a n/a n/a
2022-08-15 2022-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 144,800 -32.84 308 -30.32 n/a n/a n/a
2022-05-16 2022-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 215,600 106.12 442 154.02 n/a n/a n/a
2022-02-14 2021-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 104,600 -56.69 174 -71.52 n/a n/a n/a
2021-11-12 2021-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 241,500 9.13 611 -15.26 n/a n/a n/a
2021-08-06 2021-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 221,300 -19.85 721 -20.86 n/a n/a n/a
2021-05-14 2021-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 276,100 181.73 911 208.81 n/a n/a n/a
2021-02-12 2020-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 98,000 295 n/a n/a n/a
2020-08-13 2020-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-11 2020-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 91,400 8.68 434 6.11 n/a n/a n/a
2020-02-12 2019-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 84,100 409 n/a n/a n/a
2019-11-14 2019-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 24,500 -68.95 57 -64.15 n/a n/a n/a
2019-05-15 2019-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 78,900 159 n/a n/a n/a
2019-02-13 2018-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 30,200 63 n/a n/a n/a
2018-05-15 2018-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 60,100 -36.80 148 -70.87 n/a n/a n/a
2017-11-15 2017-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 95,100 508 n/a n/a n/a
2017-08-14 2017-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-05-15 2017-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 93,200 -5.19 760 -22.21 n/a n/a n/a
2016-11-14 2016-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 98,300 977 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
(%)
2025-11-14 2025-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 47,600 11.48 147 26.96 n/a n/a n/a
2025-08-18 2025-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 42,700 -1.39 115 5.50 n/a n/a n/a
2025-05-15 2025-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 43,300 -21.98 109 -19.26 n/a n/a n/a
2025-02-14 2024-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 55,500 58.12 136 6.30 n/a n/a n/a
2024-11-14 2024-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 35,100 -52.50 128 -56.80 n/a n/a n/a
2024-08-14 2024-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 73,900 96.02 294 100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 37,700 -44.23 148 -48.06 n/a n/a n/a
2024-02-14 2023-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 67,600 284 n/a n/a n/a
2023-11-15 2023-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-23 2023-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 59,600 27.90 213 n/a n/a n/a
2023-05-15 2023-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 46,600 -43.45 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 82,400 -24.26 252 -13.10 n/a n/a n/a
2022-11-14 2022-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 108,800 81.03 290 126.56 n/a n/a n/a
2022-08-15 2022-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 60,100 31.80 128 37.63 n/a n/a n/a
2022-05-16 2022-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 45,600 -44.59 93 -32.12 n/a n/a n/a
2022-02-14 2021-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 82,300 -18.92 137 -46.69 n/a n/a n/a
2021-11-12 2021-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 101,500 -27.29 257 -43.52 n/a n/a n/a
2021-08-06 2021-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 139,600 11.68 455 10.17 n/a n/a n/a
2021-05-14 2021-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 125,000 95.31 413 113.99 n/a n/a n/a
2021-02-12 2020-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 64,000 193 n/a n/a n/a
2020-08-13 2020-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-11 2020-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 40,100 -28.65 190 -30.40 n/a n/a n/a
2020-02-12 2019-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 56,200 232.54 273 637.84 n/a n/a n/a
2019-11-14 2019-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 16,900 -77.28 37 -78.74 n/a n/a n/a
2019-08-20 2019-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 74,400 -21.77 174 -9.37 n/a n/a n/a
2019-05-15 2019-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 95,100 192 n/a n/a n/a
2019-02-13 2018-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 39,700 83 n/a n/a n/a
2018-05-15 2018-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 209,900 0.82 516 -53.60 n/a n/a n/a
2017-11-15 2017-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 208,200 1,112 n/a n/a n/a
2017-08-14 2017-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-05-15 2017-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 169,300 -19.84 1,380 -34.25 n/a n/a n/a
2016-11-14 2016-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 211,200 2,099 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.