Delta Air Lines, Inc.
MX ˙ BMV ˙ US2473617023
SecurityMX:DAL / Delta Air Lines, Inc.
InstitutionGreat Valley Advisor Group, Inc.
Latest Disclosed Ownership25,434 shares
Latest Disclosed Value $ 1,690,835
Great Valley Advisor Group, Inc. reports 45.01% increase in ownership of DAL / Delta Air Lines, Inc.

On May 11, 2026 - Great Valley Advisor Group, Inc. filed a 13F-HR form disclosing ownership of 25,434 shares of Delta Air Lines, Inc. (MX:DAL) valued at $1,690,835 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 17,540 shares of Delta Air Lines, Inc.. This represents a change in shares of 45.01% 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 25,434 7,894 45.01 1,691 38.87 0.0307
2026-02-12 2025-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 17,540 -152 -0.86 1,218 21.22 0.0234
2025-11-14 2025-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 17,692 832 4.93 1,004 21.26 0.0201
2025-08-14 2025-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 16,860 -28,943 -63.19 829 -58.52 0.0184
2025-05-08 2025-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 45,803 3,955 9.45 1,997 -21.14 0.0430
2025-02-24 2024-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 41,848 -10,280 -19.72 2,532 -4.38 0.0567
2024-11-12 2024-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 52,128 -2,180 -4.01 2,648 2.76 0.0651
2024-07-16 2024-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 54,308 -17,043 -23.89 2,577 -24.57 0.0721
2024-05-06 2024-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 71,351 6,004 9.19 3,415 29.90 0.1037
2024-02-06 2023-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 65,347 3,685 5.98 2,629 15.26 0.0923
2023-11-07 2023-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 61,662 -255 -0.41 2,282 -22.49 0.0946
2023-08-10 2023-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 61,917 -668 -1.07 2,943 34.69 0.1233
2023-05-03 2023-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 62,585 7,040 12.67 2,186 19.73 0.1019
2023-02-01 2022-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 55,545 949 1.74 1,825 19.13 0.0933
2022-10-21 2022-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 54,596 2,940 5.69 1,532 2.34 0.0858
2022-07-19 2022-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 51,656 -6,072 -10.52 1,497 -34.46 0.0823
2022-04-20 2022-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 57,728 1,204 2.13 2,284 3.12 0.1332
2022-02-10 2021-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 56,524 8,818 18.48 2,215 8.95 0.1369
2021-10-14 2021-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 47,706 6,434 15.59 2,033 13.32 0.1401
2021-07-27 2021-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 41,272 7,726 23.03 1,794 10.74 0.1327
2021-04-20 2021-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 33,546 -505 -1.48 1,620 18.33 0.1559
2021-01-29 2020-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 34,051 -858 -2.46 1,369 28.30 0.1416
2020-10-21 2020-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 34,909 -3,257 -8.53 1,067 -0.28 0.1310
2020-07-31 2020-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 38,166 24,402 177.29 1,070 172.26 0.1751
2020-05-15 2020-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 13,764 9,890 255.29 393 73.13 0.1041
2020-02-10 2019-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 3,874 -104 -2.61 227 -0.87 0.0505
2019-10-25 2019-09-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 3,978 191 5.04 229 6.51 0.0553
2019-07-30 2019-06-30 13F DELTA AIR LINES INC DEL COM NEW 247361702 3,787 -249 -6.17 215 3.37 0.0540
2019-04-26 2019-03-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 4,036 10 0.25 208 3.48 0.0662
2019-04-11 2018-12-31 13F DELTA AIR LINES INC DEL COM NEW 247361702 4,026 4,026 201 0.0751
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.