Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership9,984,432 shares
Latest Disclosed Value $ 375,124,064
Ameriprise Financial Inc reports 2.46% increase in ownership of LUV / Southwest Airlines Co.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 9,984,432 shares of Southwest Airlines Co. (MX:LUV) valued at $375,124,064 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,744,627 shares of Southwest Airlines Co.. This represents a change in shares of 2.46% 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)
2026-05-15 2026-03-31 13F SOUTHWEST AIRLINES COM 844741108 9,984,432 239,805 2.46 375,124 -6.86 0.0161
2026-02-17 2025-12-31 13F SOUTHWEST AIRLINES COM 844741108 9,744,627 -2,590,540 -21.00 402,768 2.33 0.0910
2025-11-14 2025-09-30 13F SOUTHWEST AIRLINES COM 844741108 12,335,167 3,753,183 43.73 393,615 41.38 0.0904
2025-08-14 2025-06-30 13F SOUTHWEST AIRLINES COM 844741108 8,581,984 -1,377,131 -13.83 278,408 -16.63 0.0686
2025-05-14 2025-03-31 13F SOUTHWEST AIRLINES COM 844741108 9,959,115 -786,455 -7.32 333,941 -7.56 0.0901
2025-02-14 2024-12-31 13F SOUTHWEST AIRLINES COM 844741108 10,745,570 1,252,599 13.20 361,258 28.38 0.0927
2024-11-14 2024-09-30 13F SOUTHWEST AIRLINES COM 844741108 9,492,971 -72,706 -0.76 281,403 2.82 0.0722
2024-08-14 2024-06-30 13F SOUTHWEST AIRLINES COM 844741108 9,565,677 -271,092 -2.76 273,683 -4.68 0.0741
2024-05-15 2024-03-31 13F SOUTHWEST AIRLINES COM 844741108 9,836,769 -86,883 -0.88 287,126 0.18 0.0790
2024-02-14 2023-12-31 13F SOUTHWEST AIRLINES COM 844741108 9,923,652 -418,040 -4.04 286,604 2.38 0.0858
2023-11-14 2023-09-30 13F SOUTHWEST AIRLINES COM 844741108 10,341,692 -1,593,884 -13.35 279,955 -35.23 0.0919
2023-08-14 2023-06-30 13F SOUTHWEST AIRLINES COM 844741108 11,935,576 71,098 0.60 432,207 11.95 0.1355
2023-05-22 2023-03-31 13F/A-1 SOUTHWEST AIRLINES COM 844741108 11,864,478 -531,684 -4.29 386,069 -7.50 0.1266
2023-05-15 2023-03-31 13F SOUTHSIDE BANCSHARES COM 844741108 11,864,478 -531,684 386,069 0.0234
2023-02-14 2022-12-31 13F SOUTHWEST AIRLINES COM 844741108 12,396,162 -578,398 -4.46 417,377 4.31 0.1431
2022-11-14 2022-09-30 13F SOUTHWEST AIRLINES COM 844741108 12,974,560 -2,858,998 -18.06 400,143 -30.04 0.1480
2022-08-15 2022-06-30 13F SOUTHWEST AIRLINES COM 844741108 15,833,558 -500,623 -3.06 571,921 -23.55 0.1995
2022-05-16 2022-03-31 13F SOUTHWEST AIRLINES COM 844741108 16,334,181 5,948,458 57.28 748,094 68.15 0.2208
2022-02-14 2021-12-31 13F SOUTHWEST AIRLINES COM 844741108 10,385,723 1,212,679 13.22 444,901 -5.69 0.1230
2021-11-15 2021-09-30 13F SOUTHWEST AIRLINES COM 844741108 9,173,044 5,133,456 127.08 471,742 120.08 0.1507
2021-08-16 2021-06-30 13F SOUTHWEST AIRLINES COM 844741108 4,039,588 223,890 5.87 214,352 -7.90 0.0663
2021-05-17 2021-03-31 13F SOUTHWEST AIRLINES COM 844741108 3,815,698 -331,016 -7.98 232,730 20.44 0.0773
2021-02-12 2020-12-31 13F SOUTHWEST AIRLINES COM 844741108 4,146,714 -363,580 -8.06 193,239 14.21 0.0685
2020-11-16 2020-09-30 13F SOUTHWEST AIRLINES COM 844741108 4,510,294 -524,225 -10.41 169,197 -1.68 0.0688
2020-08-14 2020-06-30 13F SOUTHWEST AIRLINES COM 844741108 5,034,519 -1,900,435 -27.40 172,093 -30.31 0.0737
2020-05-15 2020-03-31 13F SOUTHWEST AIRLINES COM 844741108 6,934,954 -289,801 -4.01 246,943 -36.68 0.1296
2020-02-14 2019-12-31 13F SOUTHWEST AIRLINES COM 844741108 7,224,755 139,524 1.97 390,000 1.92 0.1621
2019-11-14 2019-09-30 13F SOUTHWEST AIRLINES COM 844741108 7,085,231 -126,333 -1.75 382,668 4.50 0.1715
2019-08-14 2019-06-30 13F SOUTHWEST AIRLINES COM 844741108 7,211,564 295,261 4.27 366,203 2.00 0.1640
2019-05-15 2019-03-31 13F SOUTHWEST AIRLINES COM 844741108 6,916,303 2,647,190 62.01 359,025 80.92 0.1651
2019-02-14 2018-12-31 13F SOUTHWEST AIRLINES COM 844741108 4,269,113 1,849,359 76.43 198,442 31.32 0.0992
2018-11-14 2018-09-30 13F SOUTHWEST AIRLINES C COM 844741108 2,419,754 -1,197,260 -33.10 151,114 -17.89 0.0528
2018-08-14 2018-06-30 13F SOUTHWEST AIRLINES COM 844741108 3,617,014 -4,758,940 -56.82 184,031 -61.64 0.0814
2018-05-14 2018-03-31 13F SOUTHWEST AIRLINES COM 844741108 8,375,954 -2,561,382 -23.42 479,779 -32.98 0.2171
2018-02-12 2017-12-31 13F SOUTHWEST AIRLINES COM 844741108 10,937,336 3,324,823 43.68 715,892 67.99 0.3265
2017-11-07 2017-09-30 13F SOUTHWEST AIRLINES COM 844741108 7,612,513 -1,223,554 -13.85 426,152 -22.38 0.2028
2017-08-10 2017-06-30 13F SOUTHWEST AIRLINES COM 844741108 8,836,067 1,026,892 13.15 549,016 30.78 0.2748
2017-05-05 2017-03-31 13F SOUTHWEST AIRLINES COM 844741108 7,809,175 3,477,912 80.30 419,796 94.46 0.2172
2017-02-03 2016-12-31 13F SOUTHWEST AIRLINES COM 844741108 4,331,263 1,538,006 55.06 215,882 98.74 0.1179
2016-11-08 2016-09-30 13F SOUTHWEST AIRLINES COM 844741108 2,793,257 -387,615 -12.19 108,625 -12.87 0.0609
2016-08-08 2016-06-30 13F SOUTHWEST AIRLINES COM 844741108 3,180,872 -976,277 -23.48 124,672 -33.06 0.0731
2016-05-12 2016-03-31 13F SOUTHWEST AIRLINES COM 844741108 4,157,149 105,097 2.59 186,240 6.73 0.1111
2016-02-11 2015-12-31 13F SOUTHWEST AIRLINES COM 844741108 4,052,052 -828,077 -16.97 174,495 -6.00 0.1024
2015-11-12 2015-09-30 13F SOUTHWEST AIRLINES COM 844741108 4,880,129 -854,769 -14.90 185,640 -2.17 0.1150
2015-08-13 2015-06-30 13F SOUTHWEST AIRLINES COM 844741108 5,734,898 -447,105 -7.23 189,750 -30.71 0.1080
2015-05-14 2015-03-31 13F SOUTHWEST AIRLINES COM 844741108 6,182,003 1,106,056 21.79 273,835 27.46 0.1572
2015-02-13 2014-12-31 13F SOUTHWEST AIRLINES COM 844741108 5,075,947 -3,474,069 -40.63 214,835 -25.59 0.1252
2014-11-14 2014-09-30 13F SOUTHWEST AIRLINES COM 844741108 8,550,016 1,962,338 29.79 288,724 63.17 0.1737
2014-08-13 2014-06-30 13F SOUTHWEST AIRLINES COM 844741108 6,587,678 -154,823 -2.30 176,946 11.15 0.1044
2014-05-14 2014-03-31 13F SOUTHWEST AIRLINES COM 844741108 6,742,501 -738,484 -9.87 159,190 12.94 0.0956
2014-02-14 2013-12-31 13F SOUTHWEST AIRLINES COM 844741108 7,480,985 24,649 0.33 140,946 29.83 0.0854
2013-11-14 2013-09-30 13F SOUTHWEST AIRLINES COM 844741108 7,456,336 2,624,449 54.32 108,565 74.31 0.0712
2013-08-14 2013-06-30 13F SOUTHWEST AIRLINES COM 844741108 4,831,887 4,831,887 62,284 0.0431
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.