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Celestica Inc. (CLS) Insider Trading History

Recent Form 4 insider activity for CLS, with filters for buys, sales, option exercises, gifts, and tax withholding.

Section freshness

Price Aug 18, 4:00 PM EDT · Statements Jun 29, 8:00 PM EDT

Ownership read

CLS insider sentiment: Net selling.

113 sales and 0 purchases appear in the recent Form 4 filings. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.

Review insider trades

Insider flow

CLS

Purchases0

Sales8.79M

Directional bars ignore awards, gifts, conversions, and tax withholding rows.

Insider stance

Net selling

$3.34B sold / — bought

Latest filing

Aug 5, 2026

Most recent holder or insider filing date

Filings shown

119

119 insider

Latest filing: Aug 5, 2026; Most recent holder or insider filing date

Insider rows: 119; Market data source

Recent insider transactions

Celestica Inc. (CLS) Form 4 filings

Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.

MIONIS ROBERT

Sale

Shares: 46.89K
% company: 0.04%
Price: $378.50
Value: $17,748,622

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 46.93K
% company: 0.04%
Price: $377.38
Value: $17,711,198

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 47.19K
% company: 0.04%
Price: $376.50
Value: $17,766,282

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 47.69K
% company: 0.04%
Price: $375.41
Value: $17,903,303

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 48.94K
% company: 0.04%
Price: $374.55
Value: $18,329,353

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 50.47K
% company: 0.04%
Price: $373.43
Value: $18,848,132

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 51.46K
% company: 0.04%
Price: $372.42
Value: $19,163,244

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 52.53K
% company: 0.05%
Price: $371.45
Value: $19,511,897

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 57.41K
% company: 0.05%
Price: $370.45
Value: $21,265,682

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 64.08K
% company: 0.06%
Price: $369.47
Value: $23,675,268

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 77.49K
% company: 0.07%
Price: $368.57
Value: $28,561,595

Filed Aug 5, 2026

MIONIS ROBERT

Sale

Shares: 81.85K
% company: 0.07%
Price: $367.76
Value: $30,101,524

Filed Aug 5, 2026

Celestica Inc. (CLS) Form 4 insider transactions
#	Insider	% company	Action	Shares	Filing date
1	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	46.89K	Aug 5, 2026
2	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	46.93K	Aug 5, 2026
3	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	47.19K	Aug 5, 2026
4	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	47.69K	Aug 5, 2026
5	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	48.94K	Aug 5, 2026
6	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	50.47K	Aug 5, 2026
7	MIONIS ROBERT	0.04%	SaleOpen-market or direct sale reported on Form 4.	51.46K	Aug 5, 2026
8	MIONIS ROBERT	0.05%	SaleOpen-market or direct sale reported on Form 4.	52.53K	Aug 5, 2026
9	MIONIS ROBERT	0.05%	SaleOpen-market or direct sale reported on Form 4.	57.41K	Aug 5, 2026
10	MIONIS ROBERT	0.06%	SaleOpen-market or direct sale reported on Form 4.	64.08K	Aug 5, 2026
11	MIONIS ROBERT	0.07%	SaleOpen-market or direct sale reported on Form 4.	77.49K	Aug 5, 2026
12	MIONIS ROBERT	0.07%	SaleOpen-market or direct sale reported on Form 4.	81.85K	Aug 5, 2026

Showing 12 of 119 matching Form 4 rows. Percent of company uses current shares outstanding.

Frequently asked

Common questions.

Who is the most active reported CLS insider?

MIONIS ROBERT has the largest absolute share movement in the displayed CLS filing rows, totaling 6.93 million shares. The action labels provide the transaction context.