Millennium Management

Millennium Management’s Ciena CIEN Stock Holding History

Millennium Management’s Portfolio CIEN Stock Details CIEN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$34.9M	Buy	90,000 +18,500	+26%	+$5.66M	0.03%	1104
2025 Q4	$16.7M	Sell	71,500 -38,400	-35%	-$7.45M	0.01%	1740
2025 Q3	$16M	Buy	109,900 +18,000	+20%	+$1.83M	0.01%	1918
2025 Q2	$7.47M	Sell	91,900 -5,700	-6%	-$409K	0.01%	2569
2025 Q1	$5.9M	Sell	97,600 -20,400	-17%	-$1.61M	0.01%	2700
2024 Q4	$10M	Buy	+118,000	New	+$8.47M	0.01%	2179
2016 Q1	–	Sell	-40,000	Closed	-$828K	–	3298
2015 Q4	$828K	Buy	+40,000	New	+$919K	﹤0.01%	2393
2015 Q1	–	Sell	-110,900	Closed	-$2.15M	–	3628
2014 Q4	$2.15M	Buy	110,900 +46,200	+71%	+$771K	0.01%	1920
2014 Q3	$1.08M	Buy	64,700 +41,400	+178%	+$811K	﹤0.01%	2248
2014 Q2	$505K	Sell	23,300 -87,500	-79%	-$1.8M	﹤0.01%	2587
2014 Q1	$2.52M	Buy	110,800 +86,500	+356%	+$2.03M	0.01%	1612
2013 Q4	$581K	Sell	24,300 -103,200	-81%	-$2.46M	﹤0.01%	2620
2013 Q3	$3.19M	Buy	+127,500	New	+$2.87M	0.01%	1396

Other funds holding CIEN

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

JP Morgan Chase

JP Morgan Chase New York $1.47T AUM 27.86% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

T. Rowe Price Associates

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Capital Research Global Investors

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Bank of America

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return