Atom Investors’s Ciena CIEN Stock Holding History

Atom Investors’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
2025 Q3	–	Sell	-15,137	Closed	-$1.23M	–	630
2025 Q2	$1.23M	Sell	15,137 -6,042	-29%	-$433K	0.11%	216
2025 Q1	$1.28M	Buy	+21,179	New	+$1.67M	0.16%	176
2024 Q4	–	Sell	-21,061	Closed	-$1.3M	–	514
2024 Q3	$1.3M	Buy	+21,061	New	+$1.11M	0.14%	214
2024 Q2	–	Sell	-5,383	Closed	-$266K	–	506
2024 Q1	$266K	Sell	5,383 -60,609	-92%	-$3.2M	0.03%	434
2023 Q4	$2.97M	Buy	65,992 +48,510	+277%	+$2.14M	0.52%	46
2023 Q3	$826K	Buy	+17,482	New	+$771K	0.19%	155
2019 Q2	–	Sell	-29,437	Closed	-$1.1M	–	439
2019 Q1	$1.1M	Buy	+29,437	New	+$1.14M	0.09%	169

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

JP Morgan Chase

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

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

Bank of America

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 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

BNP Paribas Asset Management

BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return

William Blair Investment Management

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return