CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionBRYN MAWR TRUST Co
Latest Disclosed Ownership50,386 shares
Latest Disclosed Value $ 14,881,505
BRYN MAWR TRUST Co reports 2.17% decrease in ownership of MX4A / CME Group Inc.

On April 30, 2026 - BRYN MAWR TRUST Co filed a 13F-HR form disclosing ownership of 50,386 shares of CME Group Inc. (BG:MX4A) valued at $14,881,505 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 51,503 shares of CME Group Inc.. This represents a change in shares of -2.17% 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)
2026-04-30 2026-03-31 13F CME GROUP COM 12572Q105 50,386 -1,117 -2.17 14,882 5.81 0.2643
2026-02-12 2025-12-31 13F CME GROUP COM 12572Q105 51,503 1,797 3.62 14,064 4.72 0.3300
2025-11-20 2025-09-30 13F/A-1 CME GROUP COM 12572Q105 49,706 -2,751 -5.24 13,430 -7.11 0.3237
2025-10-28 2025-09-30 13F CME GROUP COM 12572Q105 53,076 619 14,341 0.1589
2025-07-28 2025-06-30 13F CME GROUP COM 12572Q105 52,457 -371 -0.70 14,458 3.17 0.2572
2025-05-08 2025-03-31 13F CME GROUP COM 12572Q105 52,828 4,765 9.91 14,015 25.56 0.2619
2025-01-28 2024-12-31 13F CME Group COM 12572Q105 48,063 1,290 2.76 11,162 8.15 0.2009
2024-11-25 2024-09-30 13F CME Group COM 12572Q105 46,773 1,613 3.57 10,320 16.24 0.1853
2024-08-08 2024-06-30 13F CME GROUP COMMON STOCK 12572Q105 45,160 -312 -0.69 8,878 -9.31 0.3405
2024-05-15 2024-03-31 13F CME GROUP COMMON STOCK 12572Q105 45,472 43 0.09 9,790 7.63 0.3756
2023-11-15 2023-09-30 13F CME GROUP COMMON STOCK 12572Q105 45,429 -322 -0.70 9,096 113,587.50 0.4003
2023-08-11 2023-06-30 13F CME GROUP COMMON STOCK 12572Q105 45,751 456 1.01 8 0.00 0.3533
2023-05-15 2023-03-31 13F CME GROUP COMMON STOCK 12572Q105 45,295 338 0.75 9 14.29 0.3834
2023-02-13 2022-12-31 13F CME GROUP COMMON STOCK 12572Q105 44,957 -1,256 -2.72 8 -99.91 0.3434
2022-11-14 2022-09-30 13F CME GROUP COMMON STOCK 12572Q105 46,213 -2,833 -5.78 8,186 -18.47 0.3998
2022-08-11 2022-06-30 13F CME GROUP COMMON STOCK 12572Q105 49,046 -1,879 -3.69 10,040 -17.12 0.4619
2022-05-16 2022-03-31 13F CME GROUP COMMON STOCK 12572Q105 50,925 -2,126 -4.01 12,114 -0.05 0.4730
2022-02-10 2021-12-31 13F CME GROUP COMMON STOCK 12572Q105 53,051 -969 -1.79 12,120 16.01 0.4359
2021-10-26 2021-09-30 13F CME GROUP COMMON STOCK 12572Q105 54,020 -42 -0.08 10,447 -9.14 0.4035
2021-07-29 2021-06-30 13F CME GROUP COMMON STOCK 12572Q105 54,062 -1,094 -1.98 11,498 2.07 0.4386
2021-04-23 2021-03-31 13F CME GROUP COMMON STOCK 12572Q105 55,156 -2,714 -4.69 11,265 6.93 0.4499
2021-02-11 2020-12-31 13F CME GROUP COMMON STOCK 12572Q105 57,870 -2,301 -3.82 10,535 4.65 0.4427
2020-11-12 2020-09-30 13F CME GROUP COMMON STOCK 12572Q105 60,171 -5,922 -8.96 10,067 -6.29 0.4666
2020-08-13 2020-06-30 13F CME GROUP COMMON STOCK 12572Q105 66,093 -4,007 -5.72 10,743 -11.36 0.5282
2020-05-08 2020-03-31 13F CME GROUP COMMON STOCK 12572Q105 70,100 -513 -0.73 12,120 -14.49 0.7125
2020-02-11 2019-12-31 13F CME GROUP COMMON STOCK 12572Q105 70,613 -246 -0.35 14,174 -5.36 0.7189
2019-10-24 2019-09-30 13F CME GROUP COMMON STOCK 12572Q105 70,859 -1,071 -1.49 14,976 7.26 0.8173
2019-08-15 2019-06-30 13F CME GROUP COMMON STOCK 12572Q105 71,930 53 0.07 13,962 18.03 0.7555
2019-05-15 2019-03-31 13F CME GROUP COMMON STOCK 12572Q105 71,877 802 1.13 11,829 -11.53 0.6442
2019-08-28 2018-12-31 13F/A-1 CME GROUP COMMON STOCK 12572Q105 71,075 -767 -1.07 13,371 9.35 0.8116
2019-02-15 2018-12-31 13F CME GROUP COMMON STOCK 12572Q105 71,075 -767 13,371
2019-08-28 2018-09-30 13F/A-1 CME GROUP COMMON STOCK 12572Q105 71,842 906 1.28 12,228 5.17 0.6437
2018-11-15 2018-09-30 13F CME GROUP COMMON STOCK 12572Q105 71,842 906 12,228 0.6454
2019-08-27 2018-06-30 13F/A-1 CME GROUP COMMON STOCK 12572Q105 70,936 -22,769 -24.30 11,627 -23.28 0.6485
2018-08-14 2018-06-30 13F CME GROUP COMMON STOCK 12572Q105 70,936 -22,769 11,627
2019-08-27 2018-03-31 13F/A-1 CME GROUP COMMON STOCK 12572Q105 93,705 -4,508 -4.59 15,156 5.66 0.8670
2018-05-15 2018-03-31 13F CME GROUP COMMON STOCK 12572Q105 93,705 -4,508 15,155
2019-08-27 2017-12-31 13F/A-1 CME GROUP COMMON STOCK 12572Q105 98,213 -1,341 -1.35 14,344 6.20 0.7830
2018-02-15 2017-12-31 13F CME GROUP COMMON STOCK 12572Q105 98,213 -1,341 14,344 0.7853
2019-08-27 2017-09-30 13F/A-1 CME GROUP COMMON STOCK 12572Q105 99,554 -2,591 -2.54 13,507 5.58 0.7730
2017-11-14 2017-09-30 13F CME GROUP COMMON STOCK 12572Q105 100,024 -2,121 13,571 0.7707
2017-08-11 2017-06-30 13F CME GROUP COMMON STOCK 12572Q105 102,145 -954 -0.93 12,793 4.45 0.7609
2017-05-12 2017-03-31 13F CME GROUP COMMON STOCK 12572Q105 103,099 -4,195 -3.91 12,248 -1.03 0.7411
2017-02-03 2016-12-31 13F CME GROUP COMMON STOCK 12572Q105 107,294 5,578 5.48 12,376 16.41 0.7759
2016-11-10 2016-09-30 13F CME GROUP COMMON STOCK 12572Q105 101,716 -858 -0.84 10,631 6.40 0.6695
2016-08-10 2016-06-30 13F CME GROUP COMMON STOCK 12572Q105 102,574 7,732 8.15 9,992 9.68 0.6348
2016-05-03 2016-03-31 13F CME GROUP COMMON STOCK 12572Q105 94,842 -1,956 -2.02 9,110 3.88 0.5849
2016-02-12 2015-12-31 13F CME GROUP COMMON STOCK 12572Q105 96,798 -169 -0.17 8,770 -2.47 0.5493
2015-11-09 2015-09-30 13F CME GROUP COMMON STOCK 12572Q105 96,967 145 0.15 8,992 -0.21 0.5757
2015-08-25 2015-06-30 13F CME GROUP COMMON STOCK 12572Q105 96,822 -1,131 -1.15 9,011 -2.87 0.5235
2015-05-12 2015-03-31 13F CME GROUP COMMON STOCK 12572Q105 97,953 -5,149 -4.99 9,277 1.51 0.5277
2015-02-17 2014-12-31 13F CME GROUP COMMON STOCK 12572Q105 103,102 -562 -0.54 9,139 10.25 0.5129
2014-11-14 2014-09-30 13F CME GROUP COMMON 12572Q105 103,664 2,451 2.42 8,289 15.41 0.4701
2014-08-07 2014-06-30 13F CME GROUP COMMON 12572Q105 101,213 1,437 1.44 7,182 -2.75 0.3960
2014-05-13 2014-03-31 13F CME GROUP COMMON 12572Q105 99,776 5,018 5.30 7,385 -0.66 0.4133
2014-02-14 2013-12-31 13F CME GROUP COMMON 12572Q105 94,758 4,617 5.12 7,434 11.62 0.4184
2013-11-06 2013-09-30 13F CME GROUP COMMON 12572Q105 90,141 1,404 1.58 6,660 -1.17 0.4105
2013-08-09 2013-06-30 13F CME GROUP COMMON 12572Q105 88,737 2,501 2.90 6,739 27.25 0.4357
2013-05-20 2013-03-31 13F CME GROUP COMMON STOCK 12572Q105 86,236 86,236 5,296 0.3417
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.