Quick Takeaways
- Jack J. Tobin has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $6,517,835.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Jack J. Tobin
- Location
- Chicago, IL
- Summary
- The estimated net worth of Jack J. Tobin is at least $6,517,835 dollars as of 17 Mar 2026. Jack J. Tobin is the MD Chief Accounting Officer of CME GROUP INC. and owns shares of CME GROUP INC. (CME) stock worth about $6.52M.
- Signature
- By: Margaret Austin Wright for Jack J. Tobin
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Jack J. Tobin and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: CME GROUP INC. ($6,517,835).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original FilingOwnership of Jack J. Tobin
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| CME | CME GROUP INC. | MD Chief Accounting Officer | $6,517,835 | 15 Mar 2026 |
Insider Transactions Reported by Jack J. Tobin:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.