Arkolith/Insider Trading/CBOE/Form 4

Isaacson Christopher A

EVP, COOCboe Global Markets, Inc. (CBOE) · full profile →Form 4 · filed Feb 23, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
12
8 non-derivative · 4 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 19, 2026Tax withholding(F)660$286.17$189K50K
Feb 19, 2026Option exercise(M)313$286.17$90K50K
Feb 19, 2026Option exercise(M)1K$286.17$425K51K
Feb 19, 2026Tax withholding(F)743$286.17$213K49K
Feb 19, 2026Option exercise(M)2K$286.17$479K50K
Feb 19, 2026Tax withholding(F)139$286.17$40K50K
Feb 19, 2026Option exercise(M)2K$286.17$712K49K
Feb 19, 2026Tax withholding(F)1K$286.17$316K48K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 19, 2026Option exercise(M)313—$0627
Feb 19, 2026Option exercise(M)1K—$03K
Feb 19, 2026Option exercise(M)2K—$02K
Feb 19, 2026Option exercise(M)2K—$00

Transaction Codes

F
Shares withheld for taxes
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001538451-26-000003) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML