Nordic American Tankers Limited
US ˙ NYSE ˙ BMG657731060

SecurityNAT / Nordic American Tankers Limited
InstitutionIMC-Chicago, LLC
Latest Disclosed Ownership93,481 shares
Latest Disclosed Value $ 547,799
IMC-Chicago, LLC ownership in NAT / Nordic American Tankers Limited

On May 5, 2026 - IMC-Chicago, LLC filed a 13F-HR form disclosing ownership of 93,481 shares of Nordic American Tankers Limited (US:NAT) valued at $547,799 USD as of March 31, 2026. The entity filed a previous 13F-HR on April 12, 2024 disclosing 0 shares of Nordic American Tankers Limited. The current value of the position is $487,971 USD.

IMC-Chicago, 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 66,600 of underlying shares valued at $390,276 USD and put options representing 54,400 of underlying shares valued at $318,784 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)
2026-05-05 2026-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 93,481 93,481 548 0.0002
2024-04-12 2024-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -187,748 -100.00 0 -100.00
2024-02-09 2023-12-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 187,748 187,748 789 0.0005
2023-07-14 2023-06-30 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 0 -64,742 -100.00 0 -100.00
2023-04-24 2023-03-31 13F NORDIC AMERICAN TANKERS LIMI COM G65773106 64,742 64,742 256 0.0003
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
(%)
2026-05-05 2026-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 66,600 390 n/a n/a n/a
2024-04-12 2024-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 60,200 -68.84 253 -68.30 n/a n/a n/a
2023-10-12 2023-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 193,200 109.09 796 134.51 n/a n/a n/a
2023-07-14 2023-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 92,400 -38.60 339 -43.03 n/a n/a n/a
2023-04-24 2023-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 150,500 -13.06 596 12.48 n/a n/a n/a
2023-04-24 2022-12-31 13F/A NORDIC AMERICAN TANKERS LIMI COM Call 173,100 57.79 530 80.55 n/a n/a n/a
2023-02-09 2022-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 173,100 1 n/a n/a n/a
2022-11-08 2022-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 109,700 293 n/a n/a n/a
2021-02-17 2020-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-17 2020-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 237,400 -19.96 829 -31.15 n/a n/a n/a
2020-08-14 2020-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Call 296,600 1,204 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
(%)
2026-05-05 2026-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 54,400 319 n/a n/a n/a
2024-04-12 2024-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 159,500 15.92 670 18.20 n/a n/a n/a
2023-10-12 2023-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 137,600 -20.00 567 -10.30 n/a n/a n/a
2023-07-14 2023-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 172,000 -14.94 631 -21.12 n/a n/a n/a
2023-04-24 2023-03-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 202,200 99.02 801 158.06 n/a n/a n/a
2023-04-24 2022-12-31 13F/A NORDIC AMERICAN TANKERS LIMI COM Put 101,600 311 n/a n/a n/a
2023-02-09 2022-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 101,600 0 n/a n/a n/a
2021-02-17 2020-12-31 13F NORDIC AMERICAN TANKERS LIMI COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-17 2020-09-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 183,100 -39.05 639 -47.62 n/a n/a n/a
2020-08-14 2020-06-30 13F NORDIC AMERICAN TANKERS LIMI COM Put 300,400 1,220 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.