SCHEDULE 13G/AFiling Date: Oct 5, 2026

Southwest Airlines (LUV) SCHEDULE 13G/A (Oct 5, 2026)

Passive Stake

View SEC Filing

ACC: 0001085146-26-000796

Stake

PRIMECAP MANAGEMENT CO/CA/

Rule 13d-1(b)Amendment #21

Passive

COMCUSIP 844741108

Percent10.02%

Shares49.00M

Event dateSep 30

Sole voting / Sole dispositive48.84M / 49.00M

Shared voting / Shared dispositive0 / 0

Original SEC Filing Text expand_more

=== SEC Schedule 13G — Passive Stake === Issuer: SOUTHWEST AIRLINES CO Issuer CIK: 0000092380 Class: COM CUSIP: 844741108 Event Date: 2026-09-30 Amendment: yes #21 Rule: Rule 13d-1(b) --- Reporting Persons --- - PRIMECAP MANAGEMENT CO/CA/ (no CIK) 49003285.00 sh 10.02% IA

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