CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership245,629 shares
Latest Disclosed Value $ 72,546,525
Assenagon Asset Management S.A. reports 2,225.59% increase in ownership of MX4A / CME Group Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 245,629 shares of CME Group Inc. (BG:MX4A) valued at $72,546,525 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 10,562 shares of CME Group Inc.. This represents a change in shares of 2,225.59% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-20 2026-03-31 13F CME GROUP COM 12572Q105 245,629 235,067 2,225.59 72,547 2,415.46 0.1101
2026-01-09 2025-12-31 13F CME GROUP COM 12572Q105 10,562 -603,321 -98.28 2,884 -98.26 0.0040
2025-10-07 2025-09-30 13F CME GROUP COM 12572Q105 613,883 430,851 235.40 165,865 228.79 0.2268
2025-07-11 2025-06-30 13F CME GROUP COM 12572Q105 183,032 69,196 60.79 50,447 67.05 0.0749
2025-04-15 2025-03-31 13F CME GROUP COM 12572Q105 113,836 98,650 649.61 30,200 756.47 0.0504
2025-01-14 2024-12-31 13F CME GROUP COM 12572Q105 15,186 -729,658 -97.96 3,527 -97.85 0.0057
2024-10-23 2024-09-30 13F CME GROUP COM 12572Q105 744,844 99,514 15.42 164,350 29.54 0.3025
2024-07-18 2024-06-30 13F CME GROUP COM 12572Q105 645,330 550,133 577.89 126,872 519.06 0.2824
2024-04-24 2024-03-31 13F CME GROUP COM 12572Q105 95,197 85,870 920.66 20,495 943.48 0.0485
2024-01-17 2023-12-31 13F CME GROUP COM 12572Q105 9,327 -437,871 -97.91 1,964 -97.81 0.0052
2023-11-06 2023-09-30 13F CME GROUP COM 12572Q105 447,198 79,886 21.75 89,538 31.56 0.2772
2023-07-25 2023-06-30 13F CME GROUP COM 12572Q105 367,312 181,118 97.27 68,059 90.86 0.2354
2023-04-18 2023-03-31 13F CME GROUP COM 12572Q105 186,194 177,021 1,929.80 35,660 3,565,800.00 0.1266
2023-01-12 2022-12-31 13F CME GROUP COM 12572Q105 9,173 -156,431 -94.46 2 -100.00 0.0056
2022-10-27 2022-09-30 13F CME GROUP COM 12572Q105 165,604 78,803 90.79 29,333 65.09 0.1126
2022-07-27 2022-06-30 13F CME GROUP COM 12572Q105 86,801 -46,299 -34.79 17,768 -43.88 0.0659
2022-04-25 2022-03-31 13F CME GROUP COM 12572Q105 133,100 128,090 2,556.69 31,659 2,664.98 0.0880
2022-02-01 2021-12-31 13F CME GROUP COM 12572Q105 5,010 -32,807 -86.75 1,145 -84.34 0.0033
2021-10-19 2021-09-30 13F CME GROUP COM 12572Q105 37,817 35,002 1,243.41 7,313 1,120.87 0.0234
2021-07-15 2021-06-30 13F CME GROUP COM 12572Q105 2,815 2,815 599 0.0020
2021-02-01 2020-12-31 13F CME GROUP COM 12572Q105 0 -15,374 -100.00 0 -100.00
2020-10-07 2020-09-30 13F CME GROUP COM 12572Q105 15,374 -25,500 -62.39 2,572 -61.29 0.0144
2020-07-21 2020-06-30 13F CME GROUP COM 12572Q105 40,874 -48,351 -54.19 6,644 -56.94 0.0426
2020-04-17 2020-03-31 13F CME GROUP COM 12572Q105 89,225 79,415 809.53 15,428 683.54 0.1235
2020-01-17 2019-12-31 13F CME GROUP COM 12572Q105 9,810 -6,130 -38.46 1,969 -41.56 0.0124
2019-10-16 2019-09-30 13F CME GROUP COM 12572Q105 15,940 -265,670 -94.34 3,369 -93.84 0.0226
2019-08-12 2019-06-30 13F CME GROUP COM 12572Q105 281,610 256,093 1,003.62 54,663 1,201.50 0.4106
2019-04-26 2019-03-31 13F CME GROUP COM CL A 12572Q105 25,517 259 1.03 4,200 -11.62 0.0394
2019-01-23 2018-12-31 13F CME GROUP COM CL A 12572Q105 25,258 8,937 54.76 4,752 71.06 0.0538
2018-10-29 2018-09-30 13F CME GROUP COM CL A 12572Q105 16,321 -2,813 -14.70 2,778 -11.42 0.0274
2018-07-17 2018-06-30 13F CME GROUP COM CL A 12572Q105 19,134 -8,798 -31.50 3,136 -30.59 0.0362
2018-04-30 2018-03-31 13F CME GROUP COM CL A 12572Q105 27,932 15,435 123.51 4,518 147.56 0.0589
2018-01-25 2017-12-31 13F CME GROUP COM CL A 12572Q105 12,497 -62,702 -83.38 1,825 -82.11 0.0188
2017-10-18 2017-09-30 13F CME GROUP COM CL A 12572Q105 75,199 43,055 133.94 10,203 153.43 0.0947
2017-07-19 2017-06-30 13F CME GROUP COM 12572Q105 32,144 -531 -1.63 4,026 3.71 0.0872
2017-05-04 2017-03-31 13F CME GROUP COM 12572Q105 32,675 6,311 23.94 3,882 27.66 0.0831
2017-02-27 2016-12-31 13F CME GROUP COM 12572Q105 26,364 26,364 3,041 0.0568
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.