Delta Air Lines, Inc.
MX ˙ BMV ˙ US2473617023
SecurityMX:DAL / Delta Air Lines, Inc.
InstitutionPrimecap Management Co/ca/
Latest Disclosed Ownership17,548,567 shares
Latest Disclosed Value $ 1,166,628,734
Primecap Management Co/ca/ reports 0.26% decrease in ownership of DAL / Delta Air Lines, Inc.

On May 11, 2026 - Primecap Management Co/ca/ filed a 13F-HR form disclosing ownership of 17,548,567 shares of Delta Air Lines, Inc. (MX:DAL) valued at $1,166,628,734 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 17,594,127 shares of Delta Air Lines, Inc.. This represents a change in shares of -0.26% 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)
2026-05-11 2026-03-31 13F DELTA AIR LINES COM NEW 247361702 17,548,567 -45,560 -0.26 1,166,629 -4.46 0.9185
2026-02-11 2025-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 17,594,127 -699,860 -3.83 1,221,032 17.61 0.9243
2025-11-12 2025-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 18,293,987 -1,899,845 -9.41 1,038,184 4.54 0.7951
2025-08-11 2025-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 20,193,832 -1,213,815 -5.67 993,133 6.40 0.7870
2025-05-09 2025-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,407,647 -524,360 -2.39 933,373 -29.66 0.7716
2025-02-10 2024-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,932,007 -472,516 -2.11 1,326,886 16.61 1.0276
2024-11-08 2024-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,404,523 -29,700 -0.13 1,137,926 6.92 0.8367
2024-08-09 2024-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,434,223 -133,600 -0.59 1,064,280 -1.48 0.7705
2024-05-14 2024-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,567,823 367,965 1.66 1,080,322 20.96 0.8057
2024-02-09 2023-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,199,858 -49,910 -0.22 893,100 8.49 0.7070
2023-11-13 2023-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,249,768 -94,100 -0.42 823,241 -22.50 0.6949
2023-08-11 2023-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,343,868 -302,840 -1.34 1,062,227 34.32 0.8876
2023-05-15 2023-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,646,708 468,700 2.11 790,823 8.51 0.6896
2023-02-13 2022-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,178,008 -191,310 -0.86 728,769 16.10 0.6672
2022-11-14 2022-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,369,318 1,067,362 5.01 627,683 1.71 0.6074
2022-08-11 2022-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,301,956 2,203,318 11.54 617,118 -18.34 0.5516
2022-05-11 2022-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 19,098,638 -533,100 -2.72 755,733 -1.50 0.5700
2022-02-11 2021-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 19,631,738 -1,231,170 -5.90 767,208 -13.70 0.5311
2021-11-12 2021-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 20,862,908 -255,944 -1.21 888,969 -2.70 0.6275
2021-08-10 2021-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,118,852 -495,620 -2.29 913,602 -12.45 0.6138
2021-05-14 2021-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,614,472 -1,128,743 -4.96 1,043,547 14.11 0.7277
2021-02-08 2020-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,743,215 -377,590 -1.63 914,505 29.34 0.6797
2020-11-13 2020-09-30 13F DELTA AIR LINES DEL COM 247361702 23,120,805 -635,860 -2.68 707,034 6.10 0.5833
2020-08-13 2020-06-30 13F DELTA AIR LINES DEL COM 247361702 23,756,665 -4,786,310 -16.77 666,374 -18.17 0.5718
2020-05-14 2020-03-31 13F DELTA AIR LINES DEL COM 247361702 28,542,975 188,370 0.66 814,331 -50.89 0.7985
2020-02-14 2019-12-31 13F DELTA AIR LINES DEL COM 247361702 28,354,605 179,200 0.64 1,658,177 2.17 1.2026
2019-11-13 2019-09-30 13F DELTA AIR LINES DEL COM 247361702 28,175,405 -198,766 -0.70 1,622,903 0.79 1.2980
2019-08-14 2019-06-30 13F DELTA AIR LINES DEL COM 247361702 28,374,171 -54,012 -0.19 1,610,234 9.67 1.1907
2019-05-14 2019-03-31 13F DELTA AIR LINES DEL COM 247361702 28,428,183 -26,843 -0.09 1,468,316 3.41 1.0806
2019-02-12 2018-12-31 13F DELTA AIR LINES DEL COM 247361702 28,455,026 -99,985 -0.35 1,419,906 -14.01 1.1505
2018-11-13 2018-09-30 13F DELTA AIR LINES DEL COM 247361702 28,555,011 347,641 1.23 1,651,336 18.17 1.1147
2018-08-13 2018-06-30 13F DELTA AIR LINES DEL COM 247361702 28,207,370 93,875 0.33 1,397,393 -9.31 1.0360
2018-05-14 2018-03-31 13F DELTA AIR LINES DEL COM 247361702 28,113,495 32,771 0.12 1,540,901 -2.01 1.1562
2018-02-13 2017-12-31 13F DELTA AIR LINES DEL COM 247361702 28,080,724 19,450 0.07 1,572,521 16.21 1.2068
2017-11-13 2017-09-30 13F DELTA AIR LINES DEL COM 247361702 28,061,274 611,080 2.23 1,353,115 -8.27 1.1199
2017-08-11 2017-06-30 13F DELTA AIR LINES DEL COM 247361702 27,450,194 4,736,300 20.85 1,475,173 41.31 1.2673
2017-05-12 2017-03-31 13F DELTA AIR LINES DEL COM 247361702 22,713,894 1,930,614 9.29 1,043,931 2.11 0.9475
2017-02-13 2016-12-31 13F DELTA AIR LINES DEL COM 247361702 20,783,280 864,740 4.34 1,022,330 30.40 1.0060
2016-11-14 2016-09-30 13F DELTA AIR LINES DEL COM 247361702 19,918,540 445,310 2.29 783,994 10.51 0.7825
2016-08-12 2016-06-30 13F DELTA AIR LINES DEL COM 247361702 19,473,230 336,550 1.76 709,410 -23.85 0.7554
2016-05-12 2016-03-31 13F DELTA AIR LINES DEL COM 247361702 19,136,680 620,550 3.35 931,574 -0.75 0.9662
2016-02-12 2015-12-31 13F DELTA AIR LINES DEL COM 247361702 18,516,130 207,905 1.14 938,583 14.25 0.9596
2015-11-12 2015-09-30 13F DELTA AIR LINES DEL COM 247361702 18,308,225 -751,420 -3.94 821,490 4.92 0.9119
2015-08-13 2015-06-30 13F DELTA AIR LINES DEL COM 247361702 19,059,645 182,655 0.97 782,970 -7.75 0.7701
2015-05-14 2015-03-31 13F DELTA AIR LINES DEL COM 247361702 18,876,990 739,180 4.08 848,709 -4.87 0.8288
2015-02-12 2014-12-31 13F DELTA AIR LINES DEL COM 247361702 18,137,810 -8,720 -0.05 892,199 36.01 0.9041
2014-11-13 2014-09-30 13F DELTA AIR LINES DEL COM 247361702 18,146,530 2,500 0.01 655,997 -6.62 0.7019
2014-08-14 2014-06-30 13F DELTA AIR LINES DEL COM 247361702 18,144,030 -234,950 -1.28 702,537 10.32 0.7692
2014-05-14 2014-03-31 13F DELTA AIR LINES DEL COM 247361702 18,378,980 2,168,780 13.38 636,832 43.01 0.7208
2014-02-13 2013-12-31 13F DELTA AIR LINES DEL COM 247361702 16,210,200 46,500 0.29 445,294 16.78 0.5352
2013-11-13 2013-09-30 13F DELTA AIR LINES DEL COM 247361702 16,163,700 825,700 5.38 381,302 32.87 0.5017
2013-08-14 2013-06-30 13F DELTA AIR LINES DEL COM 247361702 15,338,000 15,338,000 286,974 0.4104
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.