Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionJacobs Levy Equity Management, Inc
Latest Disclosed Ownership2,613,887 shares
Latest Disclosed Value $ 98,203,735
Jacobs Levy Equity Management, Inc reports 2.06% decrease in ownership of LUV / Southwest Airlines Co.

On May 15, 2026 - Jacobs Levy Equity Management, Inc filed a 13F-HR form disclosing ownership of 2,613,887 shares of Southwest Airlines Co. (MX:LUV) valued at $98,203,735 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,668,996 shares of Southwest Airlines Co.. This represents a change in shares of -2.06% 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)
2026-05-15 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 2,613,887 -55,109 -2.06 98,204 -10.97 0.4128
2026-02-13 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 2,668,996 -956,758 -26.39 110,310 -4.66 0.4260
2025-11-17 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 3,625,754 101,236 2.87 115,698 1.19 0.4597
2025-08-14 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 3,524,518 818,288 30.24 114,335 25.82 0.4483
2025-05-15 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 2,706,230 -3,308,598 -55.01 90,875 -55.06 0.3605
2025-02-14 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 6,014,828 2,391,495 66.00 202,219 88.36 0.7154
2024-11-14 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 3,623,333 3,111,946 608.53 107,359 633.83 0.4140
2024-08-14 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 511,387 323,040 171.51 14,631 166.15 0.0605
2024-05-15 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 188,347 35,996 23.63 5,498 24.96 0.0246
2024-02-14 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 152,351 54,474 55.66 4,400 66.06 0.0222
2023-11-17 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 97,877 -781 -0.79 2,650 -25.84 0.0157
2023-08-14 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 98,658 -2,966 -2.92 3,572 8.05 0.0206
2023-05-15 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 101,624 56,966 127.56 3,307 119.96 0.0203
2023-02-14 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 44,658 -158,376 -78.00 1,504 -76.00 0.0102
2022-11-15 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 203,034 147,262 264.04 6,262 210.92 0.0495
2022-08-15 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 55,772 55,772 2,014 0.0156
2020-05-15 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 0 -6,794 -100.00 0 -100.00
2020-02-14 2019-12-31 13F SOUTHWEST AIRLS COM 844741108 6,794 1,594 30.65 367 30.60 0.0036
2019-11-14 2019-09-30 13F SOUTHWEST AIRLS COM 844741108 5,200 5,200 281 0.0034
2016-05-16 2016-03-31 13F SOUTHWEST AIRLINES COM 844741108 0 -636,010 -100.00 0 -100.00
2016-02-16 2015-12-31 13F SOUTHWEST AIRLINES COM 844741108 636,010 -59,980 -8.62 27,387 3.44 0.5440
2015-11-16 2015-09-30 13F SOUTHWEST AIRLS COM 844741108 695,990 -83,370 -10.70 26,475 2.66 0.5431
2015-08-14 2015-06-30 13F SOUTHWEST AIRLS COM 844741108 779,360 -101,200 -11.49 25,789 -33.89 0.4905
2015-05-15 2015-03-31 13F SOUTHWEST AIRLINES COM 844741108 880,560 873,660 12,661.74 39,009 13,259.25 0.6639
2015-02-17 2014-12-31 13F SOUTHWEST AIRLINES COM 844741108 6,900 -121,060 -94.61 292 -87.89 0.0050
2014-02-14 2013-12-31 13F SOUTHWEST AIRLINES COM 844741108 127,960 66,260 107.39 2,411 168.49 0.0362
2013-11-14 2013-09-30 13F SOUTHWEST AIRLS COM 844741108 61,700 0 0.00 898 12.96 0.0152
2013-08-14 2013-06-30 13F SOUTHWEST AIRLS COM 844741108 61,700 61,700 795 0.0140
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.