Delta Air Lines, Inc.
MX ˙ BMV ˙ US2473617023
SecurityMX:DAL / Delta Air Lines, Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership15,038 shares
Latest Disclosed Value $ 999,717
Blair William & Co/il reports 30.92% decrease in ownership of DAL / Delta Air Lines, Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 15,038 shares of Delta Air Lines, Inc. (MX:DAL) valued at $999,717 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 21,770 shares of Delta Air Lines, Inc.. This represents a change in shares of -30.92% 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)
2026-05-08 2026-03-31 13F DELTA AIR LINES COM NEW 247361702 15,038 -6,732 -30.92 1,000 -33.84 0.0029
2026-02-17 2025-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,770 -3,026 -12.20 1,511 7.32 0.0041
2025-11-12 2025-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 24,796 1,168 4.94 1,407 21.08 0.0037
2025-07-24 2025-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 23,628 1,138 5.06 1,162 18.57 0.0032
2025-05-09 2025-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 22,490 1,640 7.87 981 -22.28 0.0030
2025-02-12 2024-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 20,850 1,068 5.40 1,261 25.60 0.0037
2024-11-12 2024-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 19,782 -35,717 -64.36 1,005 -61.85 0.0030
2024-08-12 2024-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 55,499 -4,667 -7.76 2,633 -8.61 0.0081
2024-05-09 2024-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 60,166 -10,715 -15.12 2,880 1.02 0.0090
2024-02-12 2023-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 70,881 -5,798 -7.56 2,852 0.49 0.0097
2023-11-09 2023-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 76,679 -7,384 -8.78 2,837 -29.00 0.0109
2023-08-11 2023-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 84,063 -5,049 -5.67 3,996 28.45 0.0146
2023-05-12 2023-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 89,112 -3 -0.00 3,112 6.25 0.0124
2023-02-10 2022-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 89,115 -15,376 -14.72 2,928 -0.14 0.0127
2022-11-09 2022-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 104,491 2,253 2.20 2,932 -1.01 0.0135
2022-08-10 2022-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 102,238 82,121 408.22 2,962 272.11 0.0131
2022-05-13 2022-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 20,117 2,607 14.89 796 16.37 0.0028
2022-02-14 2021-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 17,510 -1,172 -6.27 684 -14.07 0.0021
2021-11-12 2021-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 18,682 1,121 6.38 796 4.74 0.0027
2021-08-12 2021-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 17,561 -1,270 -6.74 760 -16.39 0.0026
2021-05-13 2021-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 18,831 -7,382 -28.16 909 -13.76 0.0034
2021-02-09 2020-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 26,213 1,980 8.17 1,054 42.24 0.0039
2020-11-06 2020-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 24,233 3,340 15.99 741 26.45 0.0031
2020-08-12 2020-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 20,893 -13,549 -39.34 586 -40.39 0.0028
2020-05-11 2020-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 34,442 2,002 6.17 983 -48.18 0.0061
2020-02-13 2019-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 32,440 4,339 15.44 1,897 17.17 0.0098
2019-11-12 2019-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 28,101 -8,624 -23.48 1,619 -22.31 0.0093
2019-08-13 2019-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 36,725 738 2.05 2,084 12.10 0.0119
2019-05-14 2019-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 35,987 -966 -2.61 1,859 0.81 0.0113
2019-02-14 2018-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 36,953 4,840 15.07 1,844 -0.70 0.0135
2018-11-13 2018-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 32,113 10,857 51.08 1,857 76.35 0.0114
2018-08-13 2018-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 21,256 11,236 112.14 1,053 91.80 0.0072
2018-05-15 2018-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 10,020 1,395 16.17 549 13.66 0.0039
2018-02-14 2017-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 8,625 127 1.49 483 17.80 0.0033
2017-11-13 2017-09-30 13F DELTA AIR LINES COM 247361702 8,498 1,754 26.01 410 13.26 0.0031
2017-08-04 2017-06-30 13F DELTA AIR LINES COM 247361702 6,744 -127,087 -94.96 362 -94.58 0.0027
2017-05-10 2017-03-31 13F DELTA AIR LINES COM 247361702 133,831 22,460 20.17 6,681 21.96 0.0538
2017-02-14 2016-12-31 13F DELTA AIR LINES COM 247361702 111,371 111,371 0.00 5,478 0.0490
2015-02-05 2014-12-31 13F DELTA AIR LINES COM 247361702 0 -6,857 -100.00 0 -100.00
2014-11-04 2014-09-30 13F DELTA AIR LINES COM 247361702 6,857 6,857 247 0.0004
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.