Ciena Ownership & Insider Activity

Ciena (CIEN) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 3.6% of shares outstanding. Institutional investors hold 76.1%.

Shares Outstanding

140.855M

Shares Float

86.835M

Insider Shares Owned

5.039M

Insider % Owned

3.6%

Institutional Shares Held

107.950M

Institutional % Held

76.1%

Ownership Breakdown

Congressional Trading Activity

Date	Member	Party	Chamber	Action	Amount
May 29, 2026	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
May 14, 2026	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Mar 30, 2026	Alan Armstrong	R	Senate	Purchase	$1,001 - $15,000
Mar 27, 2026	Alan Armstrong	R	Senate	Purchase	$1,001 - $15,000
Oct 31, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Oct 15, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Jun 17, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Sep 4, 2024	John James	R	House	Sale	$1,001 - $15,000
Nov 10, 2023	John James	R	House	Purchase	$1,001 - $15,000