Quick Takeaways
- Jack Q. Guo has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $4,731,485.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Jack Q. Guo
- Location
- Baltimore, MD
- Summary
- The estimated net worth of Jack Q. Guo is at least $4,731,485 dollars as of 16 Mar 2026. Jack Q. Guo is the EVP & CFO of CONSTELLIUM SE and owns shares of CONSTELLIUM SE (CSTM) stock worth about $4.73M.
- Signature
- /s/ Kristine Carpenter, Attorney-in-Fact for Jack Guo
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Jack Q. Guo and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: CONSTELLIUM SE ($4,731,485).
- Past-year value change for that position: -$1,079,219.
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.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Jack Q. Guo
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| CSTM | CONSTELLIUM SE | Evp & Cfo | $4,731,485 | -$1,079,219 | -19% | 12 Mar 2026 |
Insider Transactions Reported by Jack Q. Guo:
| 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.