Southwest Airlines Co.
US ˙ NYSE ˙ US8447411088

SecurityLUV / Southwest Airlines Co.
InstitutionM&G Plc
Latest Disclosed Ownership457,469 shares
Latest Disclosed Value $ 17,383,822
M&G Plc reports 9.45% decrease in ownership of LUV / Southwest Airlines Co.

On May 13, 2026 - M&G Plc filed a 13F-HR form disclosing ownership of 457,469 shares of Southwest Airlines Co. (US:LUV) valued at $17,187,110 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 505,212 shares of Southwest Airlines Co.. This represents a change in shares of -9.45% during the quarter. The current value of the position is $18,898,044 USD.

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)
2026-05-13 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 457,469 -47,743 -9.45 17,384 -16.08 0.0688
2026-02-12 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 505,212 49,328 10.82 20,714 41.99 0.1064
2025-11-07 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 455,884 31,167 7.34 14,588 7.34 0.0776
2025-08-08 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 424,717 -20,216 -4.54 13,591 -10.16 0.0749
2025-05-13 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 444,933 -8,688 -1.92 15,128 -1.92 0.0724
2025-02-11 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 453,621 -1,426 -0.31 15,423 12.98 0.0952
2024-10-31 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 455,047 14,140 3.21 13,651 6.77 0.0555
2024-07-16 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 440,907 25,129 6.04 12,786 6.05 0.0505
2024-05-10 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 415,778 415,778 12,058 0.0456
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.