MIONIS ROBERT (Chief Executive Officer) sold 15.8% of their position (9.54K shares) of CELESTICA INC on the open market

Open‑market sale worth $3.51M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 11 sales

MIONIS ROBERT

Filed: 8/3/2026ACC: 0001193125-26-330957

InsiderMIONIS ROBERTCIK 1195655

→

IssuerCELESTICA INCCIK 1030894

DirectorOfficer· Chief Executive Officer

Since Feb 2026

-9.54K

Net shares

Net seller

$3.51M

Total sold

Open market trades

0B · 11S

Total transactions

9.54K disposed

Non-Derivative Transactions11

Common Shares

Indirect

S · Sale

−340.00

Price / share

$360.47

Trade value

$122.56K

% of position

0.6%

7/31/2026

60.38K→60.04K

Common Shares

Indirect

S · Sale

−67.00

Price / share

$361.11

Trade value

$24.19K

% of position

0.1%

7/31/2026

60.04K→59.98K

Common Shares

Indirect

S · Sale

−1.14K

Price / share

$363.14

Trade value

$412.53K

% of position

1.9%

7/31/2026

59.98K→58.84K

Common Shares

Indirect

S · Sale

−1.64K

Price / share

$364.47

Trade value

$597.73K

% of position

2.8%

7/31/2026

58.84K→57.20K

Common Shares

Indirect

S · Sale

−40.00

Price / share

$365.00

Trade value

$14.60K

% of position

0.1%

7/31/2026

57.20K→57.16K

Common Shares

Indirect

S · Sale

−660.00

Price / share

$366.48

Trade value

$241.88K

% of position

1.2%

7/31/2026

57.16K→56.50K

Common Shares

Indirect

S · Sale

−2.28K

Price / share

$368.86

Trade value

$841K

% of position

4.0%

7/31/2026

56.50K→54.22K

Common Shares

Indirect

S · Sale

−2.84K

Price / share

$370.02

Trade value

$1.05M

% of position

5.2%

7/31/2026

54.22K→51.38K

Common Shares

Indirect

S · Sale

−223.00

Price / share

$372.46

Trade value

$83.06K

% of position

0.4%

7/31/2026

51.38K→51.16K

Common Shares

Indirect

S · Sale

−240.00

Price / share

$373.60

Trade value

$89.66K

% of position

0.5%

7/31/2026

51.16K→50.92K

Common Shares

Indirect

S · Sale

−80.00

Price / share

$374.49

Trade value

$29.96K

% of position

0.2%

7/31/2026

50.92K→50.84K

Total

Net shares

−9.54K

Net value

-$3.51M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Shares Indirect	7/31/2026	S · Sale	−340.00	$360.47	$122.56K	0.6%	60.38K	60.04K
Common Shares Indirect	7/31/2026	S · Sale	−67.00	$361.11	$24.19K	0.1%	60.04K	59.98K
Common Shares Indirect	7/31/2026	S · Sale	−1.14K	$363.14	$412.53K	1.9%	59.98K	58.84K
Common Shares Indirect	7/31/2026	S · Sale	−1.64K	$364.47	$597.73K	2.8%	58.84K	57.20K
Common Shares Indirect	7/31/2026	S · Sale	−40.00	$365.00	$14.60K	0.1%	57.20K	57.16K
Common Shares Indirect	7/31/2026	S · Sale	−660.00	$366.48	$241.88K	1.2%	57.16K	56.50K
Common Shares Indirect	7/31/2026	S · Sale	−2.28K	$368.86	$841K	4.0%	56.50K	54.22K
Common Shares Indirect	7/31/2026	S · Sale	−2.84K	$370.02	$1.05M	5.2%	54.22K	51.38K
Common Shares Indirect	7/31/2026	S · Sale	−223.00	$372.46	$83.06K	0.4%	51.38K	51.16K
Common Shares Indirect	7/31/2026	S · Sale	−240.00	$373.60	$89.66K	0.5%	51.16K	50.92K
Common Shares Indirect	7/31/2026	S · Sale	−80.00	$374.49	$29.96K	0.2%	50.92K	50.84K
Total			−9.54K		-$3.51M

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)3

Common Shares

Indirect

Shares owned210.44K

Common Shares

Direct

Shares owned453.70K

Common Shares

Indirect

Shares owned145.56K

Total

453.70K direct·356.01K indirect809.71K

Security Title	Shares Owned	Ownership Type
Common Shares	210.44K	Indirect
Common Shares	453.70K	Direct
Common Shares	145.56K	Indirect
Total	809.71K	453.70K direct·356.01K indirect

Derivative Holdings (Post-Transaction)0

No derivative holdings reported