Company · Ownership research

CIENA CORP CIEN

CIK 0000936395

Form 4 transactions dated Nov 1, 2023 to Nov 8, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 63 rows; the complete set is available through the API.

Insider filings on file run through Nov 4, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $135.00M

Nov 1, 2023 – Nov 4, 2026
Available records · partial months are marked ·

202510 of 30 preview events · 63 available in 2025

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 22, 2025	SMITH GARY B President, CEO · Director	Sale10b5-1 footnote	$1.59M 6,800 shares sold	1.71% sold Direct holding	▾
Dec 15, 2025	NEVENS THOMAS MICHAEL Director	Sale	$1.92M 8,554 shares sold	47.59% sold Direct holding	▾
Dec 15, 2025	Gage Brodie SVP Global Products & Supply	Sale10b5-1 footnote	$121.46K 550 shares sold	1.36% sold Direct holding	▾
Dec 15, 2025	Rothenstein David M SVP and Chief Strategy Officer	Sale10b5-1 footnote	$552.10K 2,500 shares sold	1.36% sold Direct holding	▾
Dec 3, 2025	SMITH GARY B President, CEO · Director	Sale10b5-1 footnote	$1.31M 6,800 shares sold	2.60% sold Direct holding	▾
Nov 17, 2025	Gage Brodie SVP Global Products & Supply	Sale10b5-1 footnote	$21.18K 111 shares sold	0.27% sold Direct holding	▾
Nov 17, 2025	DiPerna Dino SVP Global R&D	Sale10b5-1 footnote	$473.57K 2,482 shares sold	6.12% sold Direct holding	▾
Nov 17, 2025	Rothenstein David M SVP and Chief Strategy Officer	Sale10b5-1 footnote	$479.31K 2,500 shares sold	1.35% sold Direct holding	▾
Nov 10, 2025	SMITH GARY B President, CEO · Director	Sale10b5-1 footnote	$1.42M 6,800 shares sold	2.53% sold Direct holding	▾
Nov 3, 2025	SMITH GARY B President, CEO · Director	Sale10b5-1 footnote	$1.30M 6,800 shares sold	2.47% sold Direct holding	▾

Showing 30 / 63 record groups in 2025. The complete set is available through the API.

CIENA CORP · CIEN

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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 30 of 63 purchase / sale groups and 30 of 50 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"CIEN","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.