CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership2,363,927 shares
Latest Disclosed Value $ 698,188,251
Legal & General Group Plc reports 4.73% decrease in ownership of MX4A / CME Group Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 2,363,927 shares of CME Group Inc. (BG:MX4A) valued at $698,188,251 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 2,481,323 shares of CME Group Inc.. This represents a change in shares of -4.73% 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 CME GROUP COM 12572Q105 2,363,927 -117,396 -4.73 698,188 3.04 0.1615
2026-02-09 2025-12-31 13F CME GROUP COM 12572Q105 2,481,323 44,252 1.82 677,593 2.90 0.1503
2025-11-13 2025-09-30 13F CME GROUP COM 12572Q105 2,437,071 124,820 5.40 658,474 3.32 0.1477
2025-08-12 2025-06-30 13F CME GROUP COM 12572Q105 2,312,251 225,449 10.80 637,300 15.12 0.1582
2025-05-15 2025-03-31 13F CME GROUP COM 12572Q105 2,086,802 45,353 2.22 553,603 16.77 0.1507
2025-02-13 2024-12-31 13F CME GROUP COM 12572Q105 2,041,449 -90,426 -4.24 474,104 0.79 0.1254
2025-02-28 2024-09-30 13F/A-2 CME GROUP COM 12572Q105 2,131,875 -49,475 -2.27 470,392 9.69 0.1237
2024-11-14 2024-09-30 13F/A-1 CME GROUP COM 12572Q105 2,704,396 -130,679 596,718 0.1244
2024-11-14 2024-09-30 13F CME GROUP COM 12572Q105 2,704,396 -130,679 596,718 0.0628
2025-05-29 2024-06-30 13F/A-1 CME GROUP COM 12572Q105 2,181,350 50,495 2.37 428,849 -6.52 0.1212
2024-08-14 2024-06-30 13F CME GROUP COM 12572Q105 2,835,075 176,004 557,371 0.1248
2025-05-29 2024-03-31 13F/A-2 CME GROUP COM 12572Q105 2,130,855 -4,071 -0.19 458,766 2.03 0.1321
2024-07-01 2024-03-31 13F/A-1 CME GROUP COM 12572Q105 2,659,071 -8,035 572,486 0.1336
2024-05-14 2024-03-31 13F CME GROUP COM 12572Q105 2,659,071 -8,035 572,486 0.0688
2025-05-29 2023-12-31 13F/A-1 CME GROUP COM 12572Q105 2,134,926 -20,891 -0.97 449,622 4.16 0.1397
2024-02-15 2023-12-31 13F CME GROUP COM 12572Q105 2,667,106 511,289 561,699 0.1441
2023-11-14 2023-09-30 13F CME GROUP COM 12572Q105 2,155,817 -92,004 -4.09 431,646 3.64 0.1506
2023-08-14 2023-06-30 13F CME GROUP COM 12572Q105 2,247,821 32,846 1.48 416,475 -1.82 0.1355
2023-05-15 2023-03-31 13F CME GROUP COM 12572Q105 2,214,975 32,532 1.49 424,203 15.59 0.1517
2023-02-14 2022-12-31 13F CME GROUP COM 12572Q105 2,182,443 -187,869 -7.93 367,000 -12.59 0.1409
2022-11-14 2022-09-30 13F CME GROUP COM 12572Q105 2,370,312 -117,332 -4.72 419,858 -17.55 0.1640
2022-08-22 2022-06-30 13F CME GROUP COM 12572Q105 2,487,644 159,962 6.87 509,231 -8.03 0.1802
2022-05-16 2022-03-31 13F CME GROUP COM 12572Q105 2,327,682 144,726 6.63 553,711 11.04 0.1684
2022-02-14 2021-12-31 13F CME GROUP COM 12572Q105 2,182,956 -116,183 -5.05 498,675 12.15 0.1508
2021-11-15 2021-09-30 13F CME GROUP COM 12572Q105 2,299,139 87,913 3.98 444,642 -5.45 0.1445
2021-08-12 2021-06-30 13F CME GROUP COM 12572Q105 2,211,226 -56,571 -2.49 470,272 1.54 0.1572
2021-05-17 2021-03-31 13F CME GROUP COM 12572Q105 2,267,797 -12,304 -0.54 463,160 11.58 0.1725
2021-02-12 2020-12-31 13F CME GROUP COM 12572Q105 2,280,101 28,411 1.26 415,093 10.18 0.1626
2020-11-13 2020-09-30 13F CME GROUP COM 12572Q105 2,251,690 -39,583 -1.73 376,729 1.15 0.1684
2020-08-14 2020-06-30 13F CME GROUP COM 12572Q105 2,291,273 105,420 4.82 372,430 -1.54 0.1800
2020-05-14 2020-03-31 13F CME GROUP COM 12572Q105 2,185,853 54,775 2.57 378,251 -11.57 0.2212
2020-02-13 2019-12-31 13F CME GROUP COM 12572Q105 2,131,078 13,037 0.62 427,741 4.03 0.2038
2019-08-14 2019-06-30 13F CME GROUP COM 12572Q105 2,118,041 -29,538 -1.38 411,154 16.33 0.2212
2019-05-15 2019-03-31 13F CME GROUP COM CL A 12572Q105 2,147,579 331,439 18.25 353,424 3.46 0.2018
2019-02-15 2018-12-31 13F CME GROUP COM CL A 12572Q105 1,816,140 203,486 12.62 341,605 24.44 0.2647
2018-11-20 2018-09-30 13F CME GROUP COM CL A 12572Q105 1,612,654 34,772 2.20 274,515 6.13 0.1965
2018-08-10 2018-06-30 13F CME GROUP COM CL A 12572Q105 1,577,882 -88,694 -5.32 258,658 -4.02 0.1996
2018-05-17 2018-03-31 13F CME GROUP COM CL A 12572Q105 1,666,576 -227,930 -12.03 269,482 -2.61 0.2056
2018-02-13 2017-12-31 13F CME GROUP COM CL A 12572Q105 1,894,506 193,726 11.39 276,696 19.91 0.2002
2017-11-09 2017-09-30 13F CME GROUP COM CL A 12572Q105 1,700,780 60,352 3.68 230,762 12.32 0.1736
2017-08-03 2017-06-30 13F CME GROUP COM 12572Q105 1,640,428 91,333 5.90 205,448 11.63 0.1660
2017-05-12 2017-03-31 13F CME GROUP COM 12572Q105 1,549,095 54,353 3.64 184,036 6.74 0.1562
2017-02-13 2016-12-31 13F CME GROUP COM 12572Q105 1,494,742 19,608 1.33 172,423 11.83 0.1608
2016-10-12 2016-09-30 13F CME GROUP COM 12572Q105 1,475,134 24,999 1.72 154,188 9.18 0.1562
2016-08-16 2016-06-30 13F CME GROUP COM 12572Q105 1,450,135 58,653 4.22 141,228 5.68 0.1488
2016-05-16 2016-03-31 13F CME GROUP COM 12572Q105 1,391,482 27,322 2.00 133,643 8.12 0.1480
2016-02-16 2015-12-31 13F CME GROUP COM 12572Q105 1,364,160 13,214 0.98 123,608 -1.32 0.1397
2015-11-13 2015-09-30 13F CME GROUP COM 12572Q105 1,350,946 55,152 4.26 125,256 3.87 0.1527
2015-07-31 2015-06-30 13F CME GROUP COM 12572Q105 1,295,794 1,295,794 120,584 0.1416
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.