CSTM Constellium N.V.

NYSE
$26.17

Constellium N.V. (CSTM) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with CSTM's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 1 buyer in the last 90 days 0 sellers in the last 90 days
Insiders buying
2
3 transactions
Insiders selling
10
11 transactions
Purchases
$166.4K
5,315 shares
Sales
$6.4M
195,153 shares
Net activity
-$6.2M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $6.4M 11 transactions · 195,153 shares

Largest single sale: $1.6M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: August 3, 2026 , by Deslarzes Jean-Christophe .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Deslarzes Jean-Christophe Director Buy 1,490 $27.24 $40.6K 43,515
Ormerod John Director Sell 8,000 $35.01 $280.1K 24,873 −24.3% of holding
Becker Marcus SVP CPO Sell 10,391 $34.93 $363.0K 16,784 −38.2% of holding
Jarrett Martin SVP Chief Innovation Officer Sell 4,716 $33.46 $157.8K 15,375 −23.5% of holding
Soultz Bradley Lee Director Buy 2,500 $33.84 $84.6K 2,500
Piquier Ludovic SVP Manuf Excellence & CTO Sell 1,000 $33.57 $33.6K 241,713 −0.4% of holding
Brun Nicolas SVP PA, Comm & Sust Sell 26,661 $33.85 $902.5K 104,891 −20.3% of holding
Corre Stephane President, AS&I Sell 5,000 $33.52 $167.6K 62,313 −7.4% of holding
Guo Jack Q. EVP & CFO Sell 25,201 $32.62 $822.1K 185,368 −12% of holding
Brandjes Michiel Director Sell 10,400 $31.25 $325.0K 41,600 −20% of holding
Hoffmann Philippe President, A&T Sell 50,000 $31.92 $1.6M 144,153 −25.8% of holding
Jurkovic Philip Ryan SVP & CHRO Sell 48,784 $32.01 $1.6M 172,149 −22.1% of holding
Corre Stephane President, AS&I Sell 5,000 $32.04 $160.2K 67,313 −6.9% of holding
Deslarzes Jean-Christophe Director Buy 1,325 $31.13 $41.2K 42,025

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.