Nordic American Tankers Limited
US ˙ NYSE ˙ BMG657731060

SecurityNAT / Nordic American Tankers Limited
InstitutionRhumbline Advisers
Latest Disclosed Ownership346,649 shares
Latest Disclosed Value $ 2,031,355
Rhumbline Advisers reports 18.40% decrease in ownership of NAT / Nordic American Tankers Limited

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 346,649 shares of Nordic American Tankers Limited (US:NAT) valued at $2,031,363 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 424,792 shares of Nordic American Tankers Limited. This represents a change in shares of -18.40% during the quarter. The current value of the position is $1,868,438 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)
2026-05-12 2026-03-31 13F NORDIC AMERICAN TANKERS COM G65773106 346,649 -78,143 -18.40 2,031 39.01 0.0017
2026-02-13 2025-12-31 13F NORDIC AMERICAN TANKERS COM G65773106 424,792 -57,380 -11.90 1,461 -3.50 0.0012
2025-11-06 2025-09-30 13F NORDIC AMERICAN TANKERS COM G65773106 482,172 168,660 53.80 1,514 83.74 0.0012
2025-08-12 2025-06-30 13F NORDIC AMERICAN TANKERS COM G65773106 313,512 7,465 2.44 825 9.57 0.0007
2025-05-29 2025-03-31 13F/A-1 NORDIC AMERICAN TANKERS COM G65773106 306,047 -177,410 -36.70 753 -37.75 0.0007
2025-04-08 2025-03-31 13F NORDIC AMERICAN TANKERS COM G65773106 306,047 -177,410 753 0.0007
2025-05-29 2024-12-31 13F/A-1 NORDIC AMERICAN TANKERS COM G65773106 483,457 5,439 1.14 1,209 -31.13 0.0011
2025-01-30 2024-12-31 13F NORDIC AMERICAN TANKERS COM G65773106 483,457 5,439 1,209 0.0011
2024-11-12 2024-09-30 13F NORDIC AMERICAN TANKERS COM G65773106 478,018 -13,038 -2.66 1,754 -10.24 0.0016
2024-08-01 2024-06-30 13F NORDIC AMERICAN TANKERS COM G65773106 491,056 -16,462 -3.24 1,954 -1.76 0.0018
2024-05-09 2024-03-31 13F NORDIC AMERICAN TANKERS COM G65773106 507,518 -148,298 -22.61 1,989 -27.78 0.0019
2024-02-08 2023-12-31 13F NORDIC AMERICAN TANKERS COM G65773106 655,816 -6,619 -1.00 2,754 0.92 0.0029
2023-11-09 2023-09-30 13F NORDIC AMERICAN TANKERS COM G65773106 662,435 351,216 112.85 2,729 138.97 0.0032
2023-08-08 2023-06-30 13F NORDIC AMERICAN TANKERS COM G65773106 311,219 -7,036 -2.21 1,142 114,100.00 0.0013
2023-05-11 2023-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 318,255 11,776 3.84 1 -99.89 0.0016
2023-02-14 2022-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 306,479 8,650 2.90 938 17.99 0.0013
2022-11-10 2022-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 297,829 30,396 11.37 795 39.47 0.0012
2022-08-11 2022-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 267,433 9,923 3.85 570 4.01 0.0008
2022-05-12 2022-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 257,510 25,644 11.06 548 39.80 0.0007
2022-02-10 2021-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 231,866 4,470 1.97 392 -32.65 0.0005
2021-11-12 2021-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 227,396 1,054 0.47 582 -21.56 0.0008
2021-08-05 2021-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 226,342 -22,751 -9.13 742 -8.40 0.0010
2021-05-06 2021-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 249,093 -10,224 -3.94 810 5.88 0.0011
2021-02-10 2020-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 259,317 31,975 14.06 765 -3.53 0.0011
2020-11-12 2020-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 227,342 -30,831 -11.94 793 -24.33 0.0012
2020-08-13 2020-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 258,173 21,622 9.14 1,048 -2.24 0.0018
2020-05-06 2020-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 236,551 19,219 8.84 1,072 0.28 0.0022
2020-02-05 2019-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 217,332 333 0.15 1,069 127.93 0.0018
2019-10-23 2019-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 216,999 19,683 9.98 469 1.52 0.0009
2019-08-14 2019-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 197,316 1,001 0.51 462 16.37 0.0009
2019-05-01 2019-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 196,315 -3,133 -1.57 397 -0.50 0.0008
2019-01-31 2018-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 199,448 61,188 44.26 399 38.06 0.0009
2018-11-07 2018-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 138,260 2,731 2.02 289 -20.39 0.0006
2018-08-06 2018-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 135,529 24,273 21.82 363 68.06 0.0007
2018-05-02 2018-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 111,256 9,625 9.47 216 -13.60 0.0005
2018-02-09 2017-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 101,631 -18,228 -15.21 250 -60.94 0.0005
2017-11-06 2017-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 119,859 685 0.57 640 -15.34 0.0014
2017-08-02 2017-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 119,174 4,375 3.81 756 -19.49 0.0017
2017-05-02 2017-03-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 114,799 3,686 3.32 939 0.64 0.0022
2017-01-27 2016-12-31 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 111,113 5,353 5.06 933 -12.72 0.0024
2016-11-08 2016-09-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 105,760 1,240 1.19 1,069 -26.38 0.0029
2016-08-11 2016-06-30 13F NORDIC AMERICAN TANKERS LIMITE COM G65773106 104,520 -26,170 -20.02 1,452 -21.13 0.0043
2016-05-02 2016-03-31 13F NORDIC AMERICAN TANKERS LTD COM G65773106 130,690 13,580 11.60 1,841 1.15 0.0057
2016-02-03 2015-12-31 13F NORDIC AMERICAN TANKERS LTD COM G65773106 117,110 2,160 1.88 1,820 4.18 0.0059
2015-11-04 2015-09-30 13F NORDIC AMERICAN TANKERS LTD COM G65773106 114,950 6,638 6.13 1,747 13.37 0.0059
2015-08-04 2015-06-30 13F NORDIC AMERICAN TANKERS LTD COM G65773106 108,312 -5,475 -4.81 1,541 13.73 0.0049
2015-05-12 2015-03-31 13F NORDIC AMERICAN TANKERS LTD COM G65773106 113,787 -2,000 -1.73 1,355 16.21 0.0039
2015-02-06 2014-12-31 13F NORDIC AMERICAN TANKERS LTD COM G65773106 115,787 10,450 9.92 1,166 39.31 0.0034
2014-11-12 2014-09-30 13F NORDIC AMERICAN TANKERS LTD COM G65773106 105,337 1,200 1.15 837 -15.62 0.0025
2014-08-06 2014-06-30 13F NORDIC AMERICAN TANKERS LTD COM G65773106 104,137 16,888 19.36 992 15.48 0.0029
2014-05-06 2014-03-31 13F NORDIC AMERICAN TANKERS LTD COM G65773106 87,249 -1,110 -1.26 859 0.23 0.0025
2014-02-03 2013-12-31 13F NORDIC AMERICAN TANKERS LTD COM G65773106 88,359 -1,500 -1.67 857 15.81 0.0025
2013-11-05 2013-09-30 13F NORDIC AMERICAN TANKERS LTD COM G65773106 89,859 -608 -0.67 740 8.03 0.0023
2013-08-07 2013-06-30 13F NORDIC AMERICAN TANKERS LTD COM G65773106 90,467 90,467 685 0.0022
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.