A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 13 filings in this group are Form 4s for Cboe Global Markets, Inc.
The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.
Across the 13 insider filings shown, the breakdown is 9 compensation award, 2 open-market sale, 1 option exercise and 1 tax withholding. 2 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Option exercise
Tax / Compensation Filing
2026-10-14
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Tomczyk Fredric J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
14,818 |
$297.38 |
$4.41M |
F |
Tax withholding on vested shares
|
14,818 |
$297.38 |
$4.41M |
M |
Option exercise
derivative · Restricted Stock Units
|
14,818 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Tomczyk Fredric J (Director)
Shares: 29,636
Form 4
Compensation award
Tax / Compensation Filing
2026-08-21
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Fischer Heidi (EVP, Equities and Spot Markets) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
derivative · Restricted Stock Units
|
1,781 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
1,119 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Fischer Heidi (EVP, Equities and Spot Markets)
Form 4
Compensation award
Tax / Compensation Filing
2026-08-21
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Duinstra Boudewijn (EVP, CHIEF RISK OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
derivative · Restricted Stock Units
|
1,335 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
1,069 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Duinstra Boudewijn (EVP, CHIEF RISK OFFICER)
Form 4
Open-market sale
Insider Selling
2026-08-14
CBOE insider Froetscher Janet P (Director) sold 937 shares (~$261.4K)
Froetscher Janet P, listed as Director at Cboe Global Markets, Inc., reported an open-market sale of 937 CBOE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
937 |
$278.95 |
$261.4K |
Filing: Form 4 (Insider Transaction)
Insider: Froetscher Janet P (Director)
Shares: 937
Est. Value: $261.4K
Form 4
Tax withholding
Tax / Compensation Filing
2026-07-02
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Tomczyk Fredric J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
337 |
$247.72 |
$83.5K |
Filing: Form 4 (Insider Transaction)
Insider: Tomczyk Fredric J (Director)
Shares: 337
Form 4
Compensation award
Tax / Compensation Filing
2026-05-21
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Wilkinson Allen (SVP, CHIEF ACCOUNTING OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
derivative · Restricted Stock Units
|
166 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Wilkinson Allen (SVP, CHIEF ACCOUNTING OFFICER)
Form 4
Open-market sale
Insider Selling
2026-05-20
CBOE insider Froetscher Janet P (Director) sold 1,223 shares (~$437.9K)
Froetscher Janet P, listed as Director at Cboe Global Markets, Inc., reported an open-market sale of 1,223 CBOE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
1,223 |
$358.09 |
$437.9K |
Filing: Form 4 (Insider Transaction)
Insider: Froetscher Janet P (Director)
Shares: 1,223
Est. Value: $437.9K
Form 4
Compensation award
Tax / Compensation Filing
2026-05-18
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Tomczyk Fredric J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
530 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Tomczyk Fredric J (Director)
Shares: 530
Form 4
Compensation award
Tax / Compensation Filing
2026-05-18
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
PALMORE RODERICK A (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
530 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: PALMORE RODERICK A (Director)
Shares: 530
Form 4
Compensation award
Tax / Compensation Filing
2026-05-18
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Farrow William M III (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
530 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Farrow William M III (Director)
Shares: 530
Form 4
Compensation award
Tax / Compensation Filing
2026-05-18
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Fitzpatrick Edward J. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
530 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Fitzpatrick Edward J. (Director)
Shares: 530
Form 4
Compensation award
Tax / Compensation Filing
2026-05-18
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Fong Ivan K (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
530 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Fong Ivan K (Director)
Shares: 530
Form 4
Compensation award
Tax / Compensation Filing
2026-05-18
CBOE insider Form 4 filed for equity award, exercise, or tax withholding
Froetscher Janet P (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
530 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Froetscher Janet P (Director)
Shares: 530