NASDAQ · Financial Services · Holders
CME Group Inc. (CME) Institutional Ownership & Insider Trading History
Top CME institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
- Last confirmed price
- $278.03+0.28%
- Oct 13, 2026, 4:00 PM EDT · Prices may be delayed
Data dates
Prices as of Oct 13, 4:00 PM EDT · Fundamentals checked Oct 14, 1:04 AM EDT · Statement period ended Jun 30, 2026
Ownership read
CME insider transaction activity: Mixed, sale-heavy.
Blackrock Inc. is the largest institutional holder. 36 sales and 8 purchases appear in the recent Form 4 filings. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.
Insider flow
CME
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
30.57M
Blackrock Inc.
Insider transaction activity
Mixed, sale-heavy
$55.4M sold / $1.39M bought
Observations shown
130
10 holder / 120 insider
- Holder rows
- 10
- Yahoo Finance · Filing dates shown per row
- Increased / initiated
- 6
- 4 decreased · provider-reported changes
- Insider rows
- 120
- Yahoo Finance · Filing dates shown per row
Percent outstanding uses the quote share count, market cap divided by the share price (66.64M shares). The holder feed's percentages used a different share count, so they are not the figures on this page.
Ownership concentration and transaction activity
- Top 10 reported holders
- Comparable position dates required
- Changes with share-count history
- Prior-position data unavailable
- New / exited positions
- 0 / 0 explicitly reported
- Largest increase with share-count history
- Prior share counts unavailable
These changes cover the holders shown. A holder missing from this list may still own shares. Compare positions from the same reporting quarters.
Net shares sold: 195,171
Sale-code S shares minus purchase-code P shares in this sample. Includes disclosed plans and unknown plan status; excludes grants, gifts, exercises and withholding. This is activity, not sentiment.
- Purchase / sale; plan unknown: 44
- Grant: 72
- Gift: 4
Top 10 institutional holders
CME Group Inc. (CME) institutional ownership
Ranked by reported share count, with position changes and separate position and filing dates where ownership data supplies them.
| # | Institution | % held | Shares | Change % | Position / filing date |
|---|---|---|---|---|---|
| 1 | 45.9% | 30.57M | -2.80% | Position as of Jun 30, 2026Filing date unknown | |
| 2 | 35.5% | 23.66M | +1.26% | Position as of Jun 30, 2026Filing date unknown | |
| 3 | 24.5% | 16.35M | +1.81% | Position as of Jun 30, 2026Filing date unknown | |
| 4 | 14.6% | 9.73M | +3.42% | Position as of Jun 30, 2026Filing date unknown | |
| 5 | 13.9% | 9.27M | +1.36% | Position as of Jun 30, 2026Filing date unknown | |
| 6 | 13.8% | 9.17M | +1.53% | Position as of Jun 30, 2026Filing date unknown | |
| 7 | 10.2% | 6.82M | -1.65% | Position as of Jun 30, 2026Filing date unknown | |
| 8 | 8.65% | 5.77M | -52.76% | Position as of Jun 30, 2026Filing date unknown | |
| 9 | Sanders Capital, LLC | 7.60% | 5.07M | +21.79% | Position as of Jun 30, 2026Filing date unknown |
| 10 | 7.23% | 4.82M | -13.58% | Position as of Jun 30, 2026Filing date unknown |
Recent insider transactions
CME Group Inc. (CME) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
| # | Insider | % company | Action | Shares | Transaction date |
|---|---|---|---|---|---|
| 1 | SHEPARD WILLIAM R Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 292 | Sep 25, 2026 |
| 2 | SAMMANN DEREK LOUIS Officer | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 2.86K | Sep 15, 2026 |
| 3 | VROMAN KENDAL L Officer | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 2.59K | Sep 15, 2026 |
| 4 | COOK ELIZABETH A Director | <0.01% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 500 | Sep 14, 2026 |
| 5 | DUFFY TERRENCE A Chief Executive Officer | 0.02% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 15.00K | Sep 10, 2026 |
| 6 | BENESH KATHRYN Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 645 | Jun 25, 2026 |
| 7 | SEIFU RAHAEL Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 645 | Jun 25, 2026 |
| 8 | KAYE DANIEL G Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 645 | Jun 25, 2026 |
| 9 | LOCKETT PHYLLIS M Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 645 | Jun 25, 2026 |
| 10 | FORD HAROLD EUGENE JR Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 1.07K | Jun 25, 2026 |
| 11 | MALONEY PATRICK W Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 645 | Jun 25, 2026 |
| 12 | COOK ELIZABETH A Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 645 | Jun 25, 2026 |
Frequently asked
Questions about this quote
Who are the largest CME shareholders?
Blackrock Inc. is the largest reported institutional holder of CME, with 30.57 million shares, or about 45.87% of shares outstanding.
What does the institutional filing activity show for CME?
CME Group Inc. has 10 institutional rows on file: 6 increased or initiated positions and 4 reduced them.
What insider transactions are available for CME?
TECHi shows 120 dated CME insider transactions through Sep 25, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.
Are CME insiders buying or selling?
The displayed CME activity reads Mixed, sale-heavy: 36 sales and 8 purchases. Other transaction types remain separate.
Who is the most active reported CME insider?
DUFFY TERRENCE A has the largest absolute share movement in the displayed CME filing rows, totaling 216,969 shares. The action labels provide the transaction context.
All data sources
Search the dated figures used for this view. Each entry identifies its units, reporting period and calculation status.
What this page answers
Check who owns the float and whether insiders are active.
Explore Institutional concentration, insider transaction pattern, and float context.
Keep in mind Filings are delayed or transactions are administrative rather than economic.
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