Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionJustInvest LLC
Latest Disclosed Ownership56,811 shares
Latest Disclosed Value $ 2,134,389
JustInvest LLC reports 9.72% increase in ownership of LUV / Southwest Airlines Co.

On May 14, 2026 - JustInvest LLC filed a 13F-HR form disclosing ownership of 56,811 shares of Southwest Airlines Co. (MX:LUV) valued at $2,134,389 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 51,779 shares of Southwest Airlines Co.. This represents a change in shares of 9.72% 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)
2026-05-14 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 56,811 5,032 9.72 2,134 -0.28 0.0209
2026-02-13 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 51,779 2,819 5.76 2,140 37.00 0.0209
2025-10-31 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 48,960 -1,908 -3.75 1,563 -5.33 0.0160
2025-07-25 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 50,868 -267 -0.52 1,651 -3.90 0.0186
2025-05-14 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 51,135 7,079 16.07 1,717 15.94 0.0253
2025-02-10 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 44,056 3,529 8.71 1,481 23.42 0.0224
2024-11-12 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 40,527 -2,711 -6.27 1,201 -1.80 0.0193
2024-08-12 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 43,238 7,814 22.06 1,222 18.18 0.0233
2024-05-09 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 35,424 4,315 13.87 1,034 15.14 0.0222
2024-02-08 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 31,109 -15,458 -33.20 898 -28.73 0.0233
2023-11-08 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 46,567 3,159 7.28 1,261 -19.80 0.0377
2023-07-28 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 43,408 11,999 38.20 1,572 53.72 0.0481
2023-05-10 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 31,409 -8,250 -20.80 1,022 -23.45 0.0355
2023-02-10 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 39,659 18,827 90.38 1,335 107.94 0.0551
2022-11-14 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 20,832 2,581 14.14 642 -2.58 0.0290
2022-08-12 2022-06-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 18,251 -12,662 -40.96 659 -53.46 0.0305
2022-08-09 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 18,251 -12,662 659 0.0305
2022-05-16 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 30,913 16,157 109.49 1,416 124.05 0.0685
2022-02-23 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 14,756 -2,515 -14.56 632 -28.83 0.0372
2021-11-09 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 17,271 9,989 137.17 888 129.46 0.0798
2021-08-11 2021-06-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 7,282 1,111 18.00 387 2.65 0.0405
2021-07-21 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 6,171 0 377 0.0574
2021-04-28 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 6,171 6,171 377 0.0571
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.