西南航空公司
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionFirst Dallas Securities Inc.
Latest Disclosed Ownership15,975 shares
Latest Disclosed Value $ 600,173
First Dallas Securities Inc. reports 41.06% increase in ownership of LUV / Southwest Airlines Co.

On April 27, 2026 - First Dallas Securities Inc. filed a 13F-HR form disclosing ownership of 15,975 shares of Southwest Airlines Co. (MX:LUV) valued at $600,173 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 11,325 shares of Southwest Airlines Co.. This represents a change in shares of 41.06% 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)
2026-04-27 2026-03-31 13F Southwest Airlines COM 844741108 15,975 4,650 41.06 600 28.21 0.2220
2026-02-11 2025-12-31 13F Southwest Airlines COM 844741108 11,325 1,200 11.85 468 44.89 0.1742
2026-02-11 2025-12-31 13F Southwest Airlines COM 844741108 11,325 468
2025-11-05 2025-09-30 13F Southwest Airlines COM 844741108 10,125 0 0.00 323 -1.52 0.1210
2025-08-07 2025-06-30 13F Southwest Airlines COM 844741108 10,125 -800 -7.32 328 -10.63 0.1298
2025-05-16 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 10,925 -2,200 -16.76 367 -16.78 0.1534
2025-01-24 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 13,125 -3,250 -19.85 441 -9.07 0.1797
2024-11-18 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 16,375 -1,400 -7.88 485 -4.53 0.2028
2024-08-02 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 17,775 750 4.41 508 0.2232
2024-04-16 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 17,025 -1,550 -8.34 0 0.2286
2024-02-13 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 18,575 18,575 1 0.2762
2023-11-14 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 0 -25,999 -100.00 0 0.0000
2023-08-07 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 25,999 531 2.08 1 0.5249
2023-05-15 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 25,468 -1,648 -6.08 1 0.4890
2023-02-03 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 27,116 -9,499 -25.94 1 -100.00 0.5503
2022-10-21 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 36,615 -1,400 -3.68 1,131 -17.63 0.7771
2022-07-28 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 38,015 -40 -0.11 1,373 -21.23 0.9253
2022-05-12 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 38,055 -3,627 -8.70 1,743 -2.41 0.9846
2022-02-07 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 41,682 -3,196 -7.12 1,786 -22.62 1.1713
2021-10-06 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 44,878 550 1.24 2,308 -1.91 1.5930
2021-07-06 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 44,328 577 1.32 2,353 -11.91 1.5421
2021-05-26 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 43,751 -5,300 -10.81 2,671 16.84 2.2718
2021-02-01 2020-12-31 13F SOUTHWEST AIRLS COM 844741108 49,051 -4,950 -9.17 2,286 12.89 2.0641
2020-10-15 2020-09-30 13F SOUTHWEST AIRLS COM 844741108 54,001 12,315 29.54 2,025 36.46 2.2766
2020-05-04 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 41,686 -1,749 -4.03 1,484 -36.72 2.0686
2020-02-04 2019-12-31 13F SOUTHWEST AIRLS COM 844741108 43,435 -600 -1.36 2,345 -1.39 2.0015
2019-11-14 2019-09-30 13F SOUTHWEST AIRLS COM 844741108 44,035 -399 -0.90 2,378 5.41 2.1085
2019-08-22 2019-06-30 13F SOUTHWEST AIRLS COM 844741108 44,434 -2,650 -5.63 2,256 -7.69 1.9733
2019-05-17 2019-03-31 13F Southwest Airlines COM 844741108 47,084 -6,316 -11.83 2,444 -1.53 1.7576
2019-02-11 2018-12-31 13F Southwest Airlines COM 844741108 53,400 -6,395 -10.69 2,482 -33.53 2.0686
2018-10-31 2018-09-30 13F Southwest Airlines COM 844741108 59,795 -2,165 -3.49 3,734 18.46 2.3328
2018-07-31 2018-06-30 13F Southwest Airlines COM 844741108 61,960 -908 -1.44 3,152 -12.40 2.0153
2018-05-04 2018-03-31 13F Southwest Airlines COM 844741108 62,868 -2,779 -4.23 3,598 -16.27 2.3496
2018-02-07 2017-12-31 13F SOUTHWEST AIRLINES COM 844741108 65,647 -3,104 -4.51 4,297 11.64 2.7322
2017-11-07 2017-09-30 13F Southwest Airlines COM 844741108 68,751 -3,699 -5.11 3,849 -14.50 2.6678
2017-08-14 2017-06-30 13F Southwest Airlines COM 844741108 72,450 -8,569 -10.58 4,502 3.35 3.2888
2017-05-05 2017-03-31 13F Southwest Airlines COM 844741108 81,019 -11,318 -12.26 4,356 -5.55 3.0371
2017-01-11 2016-12-31 13F SOUTHWEST AIRLINES COM 844741108 92,337 -6,630 -6.70 4,612 19.82 3.1557
2016-11-15 2016-09-30 13F SOUTHWEST AIRLINES COM 844741108 98,967 3,225 3.37 3,849 2.53 2.8560
2016-07-26 2016-06-30 13F SOUTHWEST AIRLINES COM 844741108 95,742 975 1.03 3,754 -11.59 2.8983
2016-05-03 2016-03-31 13F SOUTHWEST AIRLINES COM 844741108 94,767 -4,742 -4.77 4,246 -0.91 3.4352
2016-01-27 2015-12-31 13F SOUTHWEST AIRLINES COM 844741108 99,509 -13,447 -11.90 4,285 -0.28 3.5096
2015-11-12 2015-09-30 13F SOUTHWEST AIRLINES COM 844741108 112,956 -12,688 -10.10 4,297 3.37 3.5324
2015-07-27 2015-06-30 13F Southwest Airlines COM 844741108 125,644 39,884 46.51 4,157 9.42 2.9980
2015-05-05 2015-03-31 13F/A-1 Southwest Airlines COM 844741108 85,760 -254 -0.30 3,799 4.34 2.6489
2015-05-05 2015-03-31 13F Southwest Airlines COM 844741108 85,760 3,799
2015-02-17 2014-12-31 13F Southwest Airlines COM 844741108 86,014 -7,116 -7.64 3,641 15.77 2.3693
2014-11-12 2014-09-30 13F Southwest Airlines COM 844741108 93,130 -703 -0.75 3,145 24.80 1.8679
2014-07-11 2014-06-30 13F SOUTHWEST AIRLS CO COM COM 844741108 93,833 -2,705 -2.80 2,520 10.57 1.5145
2014-04-15 2014-03-31 13F SOUTHWEST AIRLS CO COM COM 844741108 96,538 7 0.01 2,279 25.29 1.5218
2014-01-29 2013-12-31 13F SOUTHWEST AIRLS CO COM COM 844741108 96,531 -3,800 -3.79 1,819 24.50 1.2191
2013-11-13 2013-09-30 13F/A-1 SOUTHWEST AIRLS CO COM COM 844741108 100,331 -1,343 -1.32 1,461 11.53 1.1155
2013-11-12 2013-09-30 13F SOUTHWEST AIRLS CO COM COM 844741108 100,331 1,461
2013-08-15 2013-06-30 13F SOUTHWEST AIRLS CO COM COM 844741108 101,674 101,674 1,310 1.0089
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.