Company · Ownership research

CELESTICA INC CLS

CIK 0001030894

Form 4 transactions dated Oct 1, 2023 to Oct 15, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 134 rows; the complete set is available through the API.

Insider filings on file run through Oct 1, 2026.

Insider purchases & sales

Purchased: $2.05M
Sold: $391.25M

Oct 1, 2023 – Oct 1, 2026
Available records · partial months are marked ·

202610 of 23 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Sep 23, 2026	Cooper Todd C President	Sale10b5-1 footnote	$7.24M 20,118 shares sold	21.55% sold Direct holding	▾
Sep 23, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$8.52M 23,396 shares sold	100.00% sold Indirect holding	▾
Aug 13, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$8.51M 23,496 shares sold	50.11% sold Indirect holding	▾
Aug 5, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$18.81M 51,061 shares sold	52.13% sold Indirect holding	▾
Aug 4, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$18.61M 50,841 shares sold	100.00% sold Indirect holding	▾
Aug 4, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$17.72M 47,612 shares sold	32.71% sold Indirect holding	▾
Aug 4, 2026	Chawla Mandeep Chief Financial Officer	Sale10b5-1 footnote	$5.95M 16,117 shares sold	19.76% sold Direct holding	▾
Jul 31, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$3.51M 9,543 shares sold	15.80% sold Indirect holding	▾
Jul 31, 2026	Chawla Mandeep Chief Financial Officer	Sale10b5-1 footnote	$323.64K 883 shares sold	1.07% sold Direct holding	▾
Jun 17, 2026	MIONIS ROBERT Chief Executive Officer · Director	Sale10b5-1 footnote	$7.00M 18,176 shares sold	23.14% sold Indirect holding	▾

Showing 23 / 23 record groups in 2026. The complete set is available through the API.

CELESTICA INC · CLS

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 23 of 23 purchase / sale groups and 30 of 134 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"CLS","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.