Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership547,600 shares
Latest Disclosed Value $ 20,573,333
Principal Financial Group Inc reports 3.75% decrease in ownership of LUV / Southwest Airlines Co.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 547,600 shares of Southwest Airlines Co. (MX:LUV) valued at $20,573,333 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 568,959 shares of Southwest Airlines Co.. This represents a change in shares of -3.75% during the quarter.

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)
2026-05-04 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 547,600 -21,359 -3.75 20,573 -12.51 0.0110
2026-02-02 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 568,959 5,475 0.97 23,515 30.78 0.0120
2025-11-04 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 563,484 -55,991 -9.04 17,981 -10.53 0.0091
2025-08-08 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 619,475 -48,256 -7.23 20,096 -10.38 0.0106
2025-04-28 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 667,731 -10,107 -1.49 22,422 -1.61 0.0126
2025-01-31 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 677,838 -11,361 -1.65 22,789 11.60 0.0124
2024-10-31 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 689,199 21,805 3.27 20,421 6.94 0.0112
2024-07-29 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 667,394 -15,118 -2.22 19,094 -4.16 0.0113
2024-04-29 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 682,512 10,562 1.57 19,923 2.66 0.0117
2024-02-07 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 671,950 -15,791 -2.30 19,406 4.23 0.0124
2023-11-02 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 687,741 170 0.02 18,617 -25.22 0.0134
2023-08-07 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 687,571 -40,139 -5.52 24,897 5.14 0.0170
2023-05-09 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 727,710 14,869 2.09 23,680 -1.34 0.0169
2023-02-09 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 712,841 -25,527 -3.46 24,001 5.40 0.0181
2022-11-09 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 738,368 2,821 0.38 22,771 -14.29 0.0181
2022-08-10 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 735,547 16,738 2.33 26,568 -19.30 0.0197
2022-05-09 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 718,809 11,383 1.61 32,922 8.63 0.0131
2022-05-09 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 661,409 30,293
2022-02-09 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 707,426 -20,973 -2.88 30,306 -19.10 0.0181
2021-11-09 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 728,399 -356,621 -32.87 37,462 -34.97 0.0244
2021-08-10 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 1,085,020 -4,244 -0.39 57,604 -13.39 0.0372
2021-05-10 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 1,089,264 307,672 39.36 66,511 82.57 0.0469
2021-02-23 2020-12-31 13F/A-1 SOUTHWEST AIRLS COM 844741108 781,592 -50,385 -6.06 36,430 16.77 0.0270
2021-02-08 2020-12-31 13F SOUTHWEST AIRLS COM 844741108 781,592 -50,385 36,430 14,332.1234
2020-11-06 2020-09-30 13F SOUTHWEST AIRLS COM 844741108 831,977 -883 -0.11 31,199 9.59 0.0263
2020-08-05 2020-06-30 13F SOUTHWEST AIRLS COM 844741108 832,860 147,921 21.60 28,468 16.72 0.0252
2020-05-12 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 684,939 -34,593 -4.81 24,391 -37.20 0.0270
2020-02-05 2019-12-31 13F SOUTHWEST AIRLS COM 844741108 719,532 1,550 0.22 38,840 0.16 0.0324
2019-11-13 2019-09-30 13F SOUTHWEST AIRLS COM 844741108 717,982 -6,961 -0.96 38,778 5.34 0.0342
2019-08-12 2019-06-30 13F SOUTHWEST AIRLS COM 844741108 724,943 -40,335 -5.27 36,812 -7.33 0.0331
2019-05-10 2019-03-31 13F SOUTHWEST AIRLS COM 844741108 765,278 24,133 3.26 39,725 15.32 0.0370
2019-02-14 2018-12-31 13F SOUTHWEST AIRLS COM 844741108 741,145 -20,128 -2.64 34,448 -27.54 0.0367
2018-11-14 2018-09-30 13F SOUTHWEST AIRLS COM 844741108 761,273 -11,545 -1.49 47,541 20.90 0.0419
2018-08-13 2018-06-30 13F SOUTHWEST AIRLS COM 844741108 772,818 -115,592 -13.01 39,321 -22.73 0.0361
2018-05-14 2018-03-31 13F SOUTHWEST AIRLS COM 844741108 888,410 -4,550 -0.51 50,888 -12.93 0.0489
2018-02-12 2017-12-31 13F SOUTHWEST AIRLS COM 844741108 892,960 -382,594 -29.99 58,444 -18.15 0.0538
2017-11-02 2017-09-30 13F SOUTHWEST AIRLS COM 844741108 1,275,554 -167,610 -11.61 71,405 -20.38 0.0692
2017-08-08 2017-06-30 13F SOUTHWEST AIRLS COM 844741108 1,443,164 85,218 6.28 89,678 22.84 0.0899
2017-05-11 2017-03-31 13F SOUTHWEST AIRLS COM 844741108 1,357,946 468,859 52.73 73,004 64.75 0.0879
2017-02-13 2016-12-31 13F SOUTHWEST AIRLS COM 844741108 889,087 -32,688 -3.55 44,311 23.61 0.0562
2016-11-10 2016-09-30 13F SOUTHWEST AIRLS COM 844741108 921,775 -19,601 -2.08 35,848 -2.88 0.0473
2016-08-09 2016-06-30 13F SOUTHWEST AIRLS COM 844741108 941,376 -63,583 -6.33 36,911 -18.02 0.0515
2016-05-10 2016-03-31 13F SOUTHWEST AIRLS COM 844741108 1,004,959 843 0.08 45,022 4.13 0.0654
2016-02-09 2015-12-31 13F SOUTHWEST AIRLS COM 844741108 1,004,116 28,144 2.88 43,237 16.46 0.0642
2015-11-12 2015-09-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 975,972 -17,042 -1.72 37,126 12.99 0.0583
2015-11-09 2015-09-30 13F SOUTHWEST AIRLS COM 844741108 975,972 37,126
2015-08-10 2015-06-30 13F SOUTHWEST AIRLS COM 844741108 993,014 -2,046,887 -67.33 32,859 -75.60 0.0490
2015-05-14 2015-03-31 13F/A-1 SOUTHWEST AIRLS COM 844741108 3,039,901 -1,114,488 -26.83 134,667 -23.40 0.2006
2015-05-12 2015-03-31 13F SOUTHWEST AIRLS COM 844741108 3,039,901 134,668
2015-02-12 2014-12-31 13F SOUTHWEST AIRLS COM 844741108 4,154,389 103,149 2.55 175,813 28.51 0.2731
2014-11-13 2014-09-30 13F SOUTHWEST AIRLS COM 844741108 4,051,240 44,686 1.12 136,810 27.13 0.2321
2014-08-12 2014-06-30 13F SOUTHWEST AIRLS COM 844741108 4,006,554 2,315,144 136.88 107,617 169.49 0.1810
2014-05-13 2014-03-31 13F SOUTHWEST AIRLS COM 844741108 1,691,410 561,310 49.67 39,934 87.56 0.0712
2014-02-12 2013-12-31 13F SOUTHWEST AIRLS COM 844741108 1,130,100 211,948 23.08 21,291 59.26 0.0397
2013-11-05 2013-09-30 13F SOUTHWEST AIRLS COM 844741108 918,152 -104,350 -10.21 13,369 1.43 0.0276
2013-08-12 2013-06-30 13F SOUTHWEST AIRLS COM 844741108 1,022,502 1,022,502 13,181 0.0292
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.