Bridgewater Associates’s Ciena CIEN Stock Holding History

Bridgewater Associates’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	$55.8M	Sell	143,846 -68,797	-32%	-$21M	0.25%	71
2025 Q4	$49.7M	Buy	212,643 +50,936	+31%	+$9.88M	0.18%	87
2025 Q3	$23.6M	Buy	161,707 +113,751	+237%	+$11.6M	0.09%	183
2025 Q2	$3.9M	Buy	+47,956	New	+$3.44M	0.02%	359
2021 Q3	–	Sell	-7,283	Closed	-$414K	–	703
2021 Q2	$414K	Buy	+7,283	New	+$401K	﹤0.01%	665
2019 Q1	–	Sell	-14,882	Closed	-$505K	–	347
2018 Q4	$505K	Buy	+14,882	New	+$472K	﹤0.01%	403
2018 Q3	–	Sell	-8,938	Closed	-$237K	–	384
2018 Q2	$237K	Sell	8,938 -6,356	-42%	-$161K	﹤0.01%	434
2018 Q1	$396K	Buy	+15,294	New	+$360K	﹤0.01%	404
2015 Q4	–	Sell	-19,431	Closed	-$403K	–	300
2015 Q3	$403K	Buy	+19,431	New	+$452K	0.01%	364

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