CLS Celestica Inc.

NYSE
$332.63

Celestica Inc. (CLS) 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 Moderately bearish Selling ran elevated versus CLS's own trailing one-year pace, with 99% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 2 sellers in the last 90 days
Insiders buying
0
0 transactions
Insiders selling
3
141 transactions
Purchases
$0
0 shares
Sales
$136.6M
360,721 shares
Net activity
-$136.6M
purchases less sales

How much of that selling was preplanned? 99% planned / 1% discretionary

10b5-1 plan sales $135.2M 140 transactions · 356,553 shares
Discretionary sales $1.4M 1 transaction · 4,168 shares

Largest single sale: $8.3M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: October 30, 2025 , by KOELLNER LAURETTE T .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
MIONIS ROBERT 6 fills Chief Executive Officer Sell 10b5-1 23,496 $362.39 $8.5M 41,338 −36.2% of holding
MIONIS ROBERT 18 fills Chief Executive Officer Sell 10b5-1 51,061 $368.41 $18.8M 96,861 −34.5% of holding
MIONIS ROBERT 20 fills Chief Executive Officer Sell 10b5-1 98,453 $368.99 $36.3M 143,848 −40.6% of holding
Chawla Mandeep 15 fills Chief Financial Officer Sell 10b5-1 16,117 $369.32 $6.0M 80,027 −16.8% of holding
MIONIS ROBERT 11 fills Chief Executive Officer Sell 10b5-1 9,543 $367.49 $3.5M 60,044 −13.7% of holding
Chawla Mandeep 9 fills Chief Financial Officer Sell 10b5-1 883 $366.52 $323.6K 82,361 −1.1% of holding
MIONIS ROBERT 14 fills Chief Executive Officer Sell 10b5-1 18,176 $385.17 $7.0M 78,219 −18.9% of holding
MIONIS ROBERT 15 fills Chief Executive Officer Sell 10b5-1 55,768 $386.96 $21.6M 129,549 −30.1% of holding
MIONIS ROBERT 17 fills Chief Executive Officer Sell 10b5-1 66,056 $400.06 $26.4M 198,964 −24.9% of holding
Chawla Mandeep 15 fills Chief Financial Officer Sell 10b5-1 17,000 $399.65 $6.8M 99,244 −14.6% of holding
Wilson Michael Max Director Sell 4,168 $333.31 $1.4M 24,718 −14.4% of holding

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.