西南航空公司
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionWestpac Banking Corp
Latest Disclosed Ownership2,250 shares
Latest Disclosed Value $ 84,532
Westpac Banking Corp reports 11.61% increase in ownership of LUV / Southwest Airlines Co.

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 2,250 shares of Southwest Airlines Co. (MX:LUV) valued at $84,532 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 2,016 shares of Southwest Airlines Co.. This represents a change in shares of 11.61% 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)
2026-05-11 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 2,250 234 11.61 85 1.20 0.0029
2026-02-10 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 2,016 0 0.00 83 29.69 0.0053
2025-11-14 2025-09-30 13F/A-1 SOUTHWEST AIRLINES CO USD 1 COM 844741108 2,016 0 0.00 64 -1.54 0.0040
2025-11-12 2025-09-30 13F SOUTHWEST AIRLINES CO USD 1 COM 844741108 2,016 0 64 0.0016
2025-08-11 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 2,016 0 0.00 65 -2.99 0.0044
2025-05-13 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 2,016 0 0.00 68 0.00 0.0050
2025-02-12 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 2,016 0 0.00 68 13.56 0.0045
2024-11-08 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 2,016 0 0.00 60 3.51 0.0040
2024-08-14 2024-06-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 2,016 -1,598 -44.22 58 -45.71 0.0046
2024-08-13 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 29 -3,585 58 0.0020
2024-05-09 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 3,614 -1,115 -23.58 105 -22.79 0.0080
2024-02-08 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 4,729 1,072 29.31 137 38.78 0.0113
2023-11-13 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 3,657 -17,243 -82.50 99 -87.04 0.0074
2023-08-10 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 20,900 -956 -4.37 757 6.33 0.0534
2023-05-04 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 21,856 -15,551 -41.57 711 -43.53 0.0096
2023-02-06 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 37,407 -534,302 -93.46 1,259 -92.86 0.0186
2022-11-08 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 571,709 -136,630 -19.29 17,632 -31.09 0.2688
2022-08-10 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 708,339 -310,286 -30.46 25,585 -45.16 0.3333
2022-05-11 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 1,018,625 19,884 1.99 46,653 9.04 0.5352
2022-02-08 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 998,741 171,193 20.69 42,786 0.53 0.4432
2021-10-27 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 827,548 67,491 8.88 42,561 5.47 0.4550
2021-08-11 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 760,057 208,549 37.81 40,351 19.82 0.4051
2021-05-13 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 551,508 -86,612 -13.57 33,675 13.22 0.3716
2021-02-11 2020-12-31 13F SOUTHWEST AIRLS COM 844741108 638,120 535,940 524.51 29,743 676.35 0.3376
2020-11-10 2020-09-30 13F SOUTHWEST AIRLS COM 844741108 102,180 -97,039 -48.71 3,832 -43.74 0.0519
2020-08-12 2020-06-30 13F SOUTHWEST AIRLS COM 844741108 199,219 84,702 73.96 6,809 67.01 0.1015
2020-05-14 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 114,517 -36,492 -24.17 4,078 -49.98 0.0703
2020-02-11 2019-12-31 13F SOUTHWEST AIRLS COM 844741108 151,009 -41,510 -21.56 8,151 -21.60 0.1049
2019-11-13 2019-09-30 13F SOUTHWEST AIRLS COM 844741108 192,519 7,706 4.17 10,398 10.79 0.1446
2019-08-01 2019-06-30 13F SOUTHWEST AIRLS COM 844741108 184,813 16,822 10.01 9,385 7.61 0.1433
2019-05-14 2019-03-31 13F SOUTHWEST AIRLS COM 844741108 167,991 -105,768 -38.64 8,720 -31.47 0.1440
2019-02-07 2018-12-31 13F SOUTHWEST AIRLS COM 844741108 273,759 53,988 24.57 12,724 -7.29 0.2168
2018-11-13 2018-09-30 13F SOUTHWEST AIRLS COM 844741108 219,771 65,308 42.28 13,725 74.63 0.2353
2018-07-18 2018-06-30 13F SOUTHWEST AIRLS COM 844741108 154,463 -18,180 -10.53 7,859 -20.52 0.1510
2018-05-01 2018-03-31 13F SOUTHWEST AIRLS COM 844741108 172,643 -110,339 -38.99 9,889 -46.61 0.1975
2018-01-18 2017-12-31 13F SOUTHWEST AIRLS COM 844741108 282,982 169,084 148.45 18,521 190.48 0.4208
2017-10-30 2017-09-30 13F SOUTHWEST AIRLS COM 844741108 113,898 102,347 886.04 6,376 789.26 0.1404
2017-08-09 2017-06-30 13F SOUTHWEST AIRLS COM 844741108 11,551 -503,741 -97.76 718 -97.41 0.0158
2017-05-18 2017-03-31 13F/A-1 SOUTHWEST AIRLS COM 844741108 515,292 44,460 9.44 27,702 -13.94 0.2220
2017-05-11 2017-03-31 13F SOUTHWEST AIRLS COM 844741108 352,823 18,883
2017-02-09 2016-12-31 13F SOUTHWEST AIRLS COM 844741108 470,832 -61,971 -11.63 32,189 55.35 0.3036
2016-11-10 2016-09-30 13F SOUTHWEST AIRLS COM 844741108 532,803 -101,068 -15.94 20,721 -5.08 0.2238
2016-08-10 2016-06-30 13F SOUTHWEST AIRLS COM 844741108 633,871 352,228 125.06 21,829 73.01 0.2390
2016-05-13 2016-03-31 13F SOUTHWEST AIRLS COM 844741108 281,643 -283,984 -50.21 12,618 -48.20 0.1372
2016-02-11 2015-12-31 13F SOUTHWEST AIRLS COM 844741108 565,627 -322,371 -36.30 24,356 -27.90 0.2694
2015-11-16 2015-09-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 887,998 -14,528 -1.61 33,779 13.11 0.3718
2015-11-12 2015-09-30 13F SOUTHWEST AIRLS COM 844741108 887,998 33,779
2015-08-12 2015-06-30 13F SOUTHWEST AIRLS COM 844741108 902,526 253,449 39.05 29,865 -12.97 0.2921
2015-05-12 2015-03-31 13F SOUTHWEST AIRLS COM 844741108 649,077 267,300 70.01 34,316 112.40 0.2981
2015-02-11 2014-12-31 13F SOUTHWEST AIRLS COM 844741108 381,777 67,060 21.31 16,157 52.03 0.1537
2014-11-12 2014-09-30 13F SOUTHWEST AIRLS COM 844741108 314,717 296,200 1,599.61 10,628 2,038.23 0.1036
2014-08-11 2014-06-30 13F SOUTHWEST AIRLS COM 844741108 18,517 -310 -1.65 497 11.94 0.0048
2014-05-12 2014-03-31 13F SOUTHWEST AIRLS COM 844741108 18,827 -157,626 -89.33 445 -86.64 0.0047
2014-02-13 2013-12-31 13F SOUTHWEST AIRLS COM 844741108 176,453 -106,300 -37.59 3,324 -19.24 0.0380
2013-11-12 2013-09-30 13F SOUTHWEST AIRLS COM 844741108 282,753 -262,951 -48.19 4,117 -43.98 0.0515
2013-08-14 2013-06-30 13F SOUTHWEST AIRLS COM 844741108 545,704 545,704 7,348 0.1123
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.