Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionGradient Investments LLC
Latest Disclosed Ownership452,466 shares
Latest Disclosed Value $ 16,999,142
Gradient Investments LLC reports 10.11% decrease in ownership of LUV / Southwest Airlines Co.

On April 13, 2026 - Gradient Investments LLC filed a 13F-HR form disclosing ownership of 452,466 shares of Southwest Airlines Co. (MX:LUV) valued at $16,999,142 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 503,336 shares of Southwest Airlines Co.. This represents a change in shares of -10.11% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-13 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 452,466 -50,870 -10.11 16,999 -18.28 0.2634
2026-01-08 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 503,336 -74,752 -12.93 20,803 12.77 0.3302
2025-10-06 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 578,088 29,665 5.41 18,447 3.69 0.3080
2025-07-08 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 548,423 23,381 4.45 17,791 0.91 0.3252
2025-04-09 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 525,042 47,632 9.98 17,631 9.84 0.3556
2025-01-21 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 477,410 -18,275 -3.69 16,051 9.28 0.3250
2024-10-15 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 495,685 88,510 21.74 14,687 26.08 0.3061
2024-07-18 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 407,175 68,922 20.38 11,649 17.99 0.2616
2024-04-23 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 338,253 -40,175 -10.62 9,874 -9.66 0.2290
2024-01-18 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 378,428 103,834 37.81 10,929 47.03 0.2643
2023-10-27 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 274,594 16,599 6.43 7,433 -20.43 0.1962
2023-07-11 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 257,995 -6,463 -2.44 9,342 8.56 0.2406
2023-04-17 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 264,458 27,701 11.70 8,605 7.95 0.2346
2023-01-10 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 236,757 -98,728 -29.43 7,972 -22.96 0.2513
2022-10-14 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 335,485 -36,889 -9.91 10,346 -23.08 0.3165
2022-07-11 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 372,374 112,418 43.25 13,450 12.97 0.3927
2022-05-26 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 259,956 -10,426 -3.86 11,906 2.79 0.3059
2022-01-12 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 270,382 43,259 19.05 11,583 -0.84 0.2936
2021-10-18 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 227,123 64,486 39.65 11,681 35.29 0.3273
2021-07-12 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 162,637 15,767 10.74 8,634 -3.72 0.2526
2021-04-21 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 146,870 146,232 22,920.38 8,968 37,266.67 0.2916
2021-01-08 2020-12-31 13F SOUTHWEST AIRLS COM 844741108 638 0 0.00 24 0.00 0.0010
2020-10-06 2020-09-30 13F SOUTHWEST AIRLS COM 844741108 638 113 21.52 24 33.33 0.0010
2020-07-10 2020-06-30 13F SOUTHWEST AIRLS COM 844741108 525 -42 -7.41 18 -10.00 0.0008
2020-04-07 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 567 390 220.34 20 100.00 0.0011
2020-01-15 2019-12-31 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 10 0.00 0.0004
2019-10-10 2019-09-30 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 10 11.11 0.0005
2019-07-16 2019-06-30 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 9 0.00 0.0005
2019-04-11 2019-03-31 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 9 12.50 0.0006
2019-01-18 2018-12-31 13F SOUTHWEST AIRLS COM 844741108 177 -19 -9.69 8 -33.33 0.0005
2018-10-11 2018-09-30 13F SOUTHWEST AIRLS COM 844741108 196 -250 -56.05 12 -47.83 0.0006
2018-08-09 2018-06-30 13F SOUTHWEST AIRLS COM 844741108 446 194 76.98 23 64.29 0.0012
2018-04-10 2018-03-31 13F SOUTHWEST AIRLS COM 844741108 252 -5 -1.95 14 -17.65 0.0008
2018-02-07 2017-12-31 13F SOUTHWEST AIRLS COM 844741108 257 257 17 0.0010
2017-10-16 2017-09-30 13F SOUTHWEST AIRLS COM 844741108 0 -177 -100.00 0 -100.00
2017-07-19 2017-06-30 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 11 10.00 0.0008
2017-04-11 2017-03-31 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 10 11.11 0.0008
2017-01-17 2016-12-31 13F SOUTHWEST AIRLS COM 844741108 177 0 0.00 9 28.57 0.0008
2016-10-11 2016-09-30 13F SOUTHWEST AIRLS COM 844741108 177 -60 -25.32 7 -22.22 0.0007
2016-07-14 2016-06-30 13F SOUTHWEST AIRLS COM 844741108 237 0 0.00 9 -18.18 0.0010
2016-04-13 2016-03-31 13F SOUTHWEST AIRLS COM 844741108 237 0 0.00 11 10.00 0.0014
2016-01-19 2015-12-31 13F SOUTHWEST AIRLS COM 844741108 237 -44 -15.66 10 -9.09 0.0013
2015-10-14 2015-09-30 13F SOUTHWEST AIRLS COM 844741108 281 46 19.57 11 37.50 0.0016
2015-08-25 2015-06-30 13F SOUTHWEST AIRLS COM 844741108 235 0 0.00 8 -20.00 0.0011
2015-04-10 2015-03-31 13F SOUTHWEST AIRLS COM 844741108 235 -600 -71.86 10 -71.43 0.0015
2015-01-15 2014-12-31 13F SOUTHWEST AIRLS COM 844741108 835 600 255.32 35 337.50 0.0058
2014-10-14 2014-09-30 13F SOUTHWEST AIRLS COM 844741108 235 177 305.17 8 700.00 0.0014
2014-04-11 2014-03-31 13F SOUTHWEST AIRLS COM 844741108 58 58 1 0.0002
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.