CIENA CORP (CIEN) Institutional Ownership & Insider Transactions

Ownership — CIEN

US Institutional Ownership88.0%

Shares	Value	Ownership %	Change	Filing Date
21.21M	$8.23B	14.98%	+81.5K	2026-03-31
13.37M	$5.19B	9.44%	-3.30M	2026-03-31
9.17M	$3.56B	6.48%	--	2026-03-31
7.37M	$2.86B	5.20%	--	2026-03-31
6.31M	$2.45B	4.46%	+1.21M	2026-03-31
5.24M	$2.04B	3.70%	+1.19M	2026-03-31
4.07M	$1.58B	2.87%	+1.38M	2026-03-31
2.75M	$1.07B	1.94%	--	2026-03-31
1.95M	$758.0M	1.38%	-209.8K	2026-03-31
1.72M	$669.0M	1.22%	-144.1K	2026-03-31
1.66M	$642.0M	1.17%	--	2026-03-31
1.56M	$606.0M	1.10%	+176.6K	2026-03-31
1.53M	$594.0M	1.08%	+11.5K	2026-03-31
1.39M	$539.0M	0.98%	-848.4K	2026-03-31
1.27M	$493.0M	0.90%	+336.5K	2026-03-31
1.21M	$467.0M	0.85%	+258.3K	2026-03-31
1.19M	$460.0M	0.84%	-29.6K	2026-03-31
1.15M	$444.0M	0.81%	-250.9K	2026-03-31
1.02M	$396.0M	0.72%	-951.6K	2026-03-31
1.01M	$392.0M	0.71%	+445.9K	2026-03-31
977.1K	$374.0M	0.69%	-435.5K	2026-03-31
926.9K	$359.0M	0.65%	-191.3K	2026-03-31
851.9K	$330.0M	0.60%	+154.4K	2026-03-31
844.2K	$327.0M	0.60%	-54.1K	2026-03-31
837.1K	$324.0M	0.59%	-469.0K	2026-03-31

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