Robert Mionis Insider Trades & Stock Holdings

Chief Executive Officer · Celestica Inc. · Latest filing Sep 23, 2026

Robert Mionis, Chief Executive Officer at Celestica Inc. has 3 Form 4 trades on file since Jun 16, 2026. Open-market activity: 0 purchases ($0) and 3 sales ($37.10M), net -$37.10M. Latest filing: disposed of 23.40K shares of $CLS on Sep 23, 2026 at $364.22.

Trades on file

3

Open-market bought

$0

Open-market sold

$37.10M

Net open-market

-$37.10M

Latest filing

Sep 23, 2026

All insider trades by Robert Mionis

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Sep 23, 2026	$CLS	Sell (Open-market sale) 10b5-1	23.40K	$364.22	$8.52M			-0.1%			Chief Executive Officer		—
Jun 17, 2026	$CLS	Sell (Open-market sale) 10b5-1	18.18K	$385.17	$7M			-4.8%	-20.8%		Chief Executive Officer		Read
Jun 16, 2026	$CLS	Sell (Open-market sale) 10b5-1	55.77K	$386.96	$21.58M			-8.1%	-20.5%		Chief Executive Officer		Read

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Robert Mionis traded

• $CLS

Frequently asked questions

Has Robert Mionis been buying or selling stock?

Robert Mionis has 0 open-market purchases and 3 open-market sales on file, net -$37.10M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Robert Mionis's latest insider trade?

disposed of 23.40K shares of $CLS on Sep 23, 2026 at $364.22.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.