Insider · CIK 0002095182
Jack Q. Guo
Files at CSTM (CONSTELLIUM SE). First filing Mar 11, 2026, latest May 7, 2026.
In brief
Jack Q. Guo files SEC Form 4 as CFO at CSTM (CONSTELLIUM SE). Since Mar 11, 2026, Jack Q. Guo has reported 0 open-market buys worth $0 and 2 open-market sells worth $1.9M, the latest filed on May 7, 2026.
A track record needs three past buys with six months of prices behind them; Jack Q. Guo has 0, so none is measured yet.
The newest scored trade: sold $822k of CSTM on May 5, 2026, filed May 7, 2026, scored 65 (notable). In the last 12 months: 0 buys worth $0 and 2 sells worth $1.9M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
CSTM: CONSTELLIUM SE
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 65Notable | CONSTELLIUM SE | $822k 25,201 shares | -12% | +206% from low0% from high | |
| 67Notable | CONSTELLIUM SE | $1.1M 41,717 shares | -18% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 5, 2026 | CSTM CONSTELLIUM SE | 25,201 0.02% of outstanding | $822k | May 5, 2026 | $1.1M |
| Mar 10, 2026 | CSTM Constellium SE | 41,717 0.03% of outstanding | $1.1M | Mar 10, 2026 | none |
Transactions
Every row this insider has filed, 4 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 5, 2026 | CSTM CONSTELLIUM SE | SOpen-market sale Ordinary shares | -25,201 | $32.62 | $822k | 185,368 | May 7, 2026 |
| Mar 12, 2026 | CSTM CONSTELLIUM SE | AGrant or award Ordinary shares | +19,690 | $0.00 | $0 | 210,569 | Mar 16, 2026 |
| Mar 9, 2026 | CSTM CONSTELLIUM SE | AGrant or award Ordinary shares | +75,874 | $0.00 | $0 | 232,596 | Mar 11, 2026 |
| Mar 10, 2026 | CSTM CONSTELLIUM SE | SOpen-market sale Ordinary shares | -41,717 | $25.87 | $1.1M | 190,879 | Mar 11, 2026 |
Questions about Jack Q. Guo
Answered from the filings on this page, as of the latest one.
Is Jack Q. Guo buying or selling?
In the last 12 months Jack Q. Guo reported 0 open-market buys worth $0 and 2 open-market sells worth $1.9M on SEC Form 4; the latest was sold $822k of CSTM on May 5, 2026. Grants, option exercises and tax withholding are not counted.
How did Jack Q. Guo's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jack Q. Guo has 0.
Where does Jack Q. Guo file Form 4?
Jack Q. Guo has filed Form 4 at CSTM (CONSTELLIUM SE) as EVP & CFO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.