The largest holder of Southwest Airlines stock is PRIMECAP Management Co., with 48.8 million shares (9.97% of the company), worth about $1.88 billion as of September 25, 2026. The 10 largest holders together own 55.0%.
In Q2 2026, 1,001 institutional holdings reports listed 455.0 million shares worth $23.40 billion, up 4.6% in shares from Q1 2026.
Insiders reported 74 transactions in the last two years: 4 sales worth $36.35 million and 10 purchases. The newest one on file is from September 15, 2026 (Martinez Jimmy Ryan, Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through September 15, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| PRIMECAP Management Co. | 48.8 million | 9.97% | $1.9B |
| Fiduciary Trust Company International | 46.6 million | 9.52% | $1.8B |
| Vanguard Capital Management LLC | 31.6 million | 6.46% | $1.2B |
| State Street Corporation | 29.3 million | 6.00% | $1.1B |
| BlackRock Advisors LLC | 27.1 million | 5.53% | $1.0B |
| Elliott Investment Management LP | 24.3 million | 4.97% | $937.0M |
| Vanguard Portfolio Management LLC | 24.0 million | 4.91% | $925.0M |
| T. Rowe Price International Ltd. | 13.9 million | 2.84% | $536.0M |
| Geode Capital Management LLC | 12.7 million | 2.60% | $491.0M |
| Ameriprise Financial Services LLC | 10.8 million | 2.20% | $415.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 1,001 | 455.0 million | $23.4B |
| Q1 2026 | 941 | 435.0 million | $16.4B |
| Q4 2025 | 914 | 486.0 million | $20.1B |
| Q3 2025 | 850 | – | $16.8B |
| Q2 2025 | 871 | 505.0 million | $16.4B |
| Q1 2025 | 881 | 530.0 million | $17.8B |
| Q4 2024 | 904 | 551.0 million | $18.5B |
| Q3 2024 | 871 | 547.0 million | $16.2B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Martinez Jimmy Ryan | Sep 15, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Liberty Jason T | Aug 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Krishna Varun | Aug 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Roach Anthony | Aug 5, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Doxey Tom | Aug 5, 2026 | Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Woods Lauren Tauscher | Aug 5, 2026 | Chief Technology Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Jones Justin | Aug 5, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Jordan Robert E | Aug 5, 2026 | Chief Executive Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Watterson Andrew M | Aug 5, 2026 | Chief Operating Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Watson Patricia A | May 7, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Breber Pierre R. | May 7, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Feinberg Sarah | May 7, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
Newest 12 of 74 insider transactions in the last two years.
PRIMECAP Management Co., with 9.97% of the company (as of September 25, 2026). Next: Fiduciary Trust Company International (9.52%) and Vanguard Capital Management LLC (6.46%).
1,001 institutional holdings reports listed Southwest Airlines shares in Q2 2026, 455.0 million shares in all worth $23.40 billion.
In the last two years insiders reported 4 sales and 10 purchases (74 transactions in all); the newest on file is from September 15, 2026.