TG
CIEN icon

TCW Group’s Ciena CIEN Stock Holding History

TCW Group’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 		$907K Buy
2,336
+112
+5% +$34.3K 0.01% 377
2025
Q4 		$520K Buy
+2,224
New +$431K ﹤0.01% 467
2018
Q2 		– Sell
-760,954
Closed -$19.7M – 342
2018
Q1 		$19.7M Buy
760,954
+121,888
+19% +$2.87M 0.16% 117
2017
Q4 		$13.4M Buy
639,066
+2,270
+0.4% +$48.1K 0.11% 137
2017
Q3 		$14M Buy
636,796
+9,667
+2% +$231K 0.11% 130
2017
Q2 		$15.7M Buy
627,129
+387,680
+162% +$9.29M 0.13% 128
2017
Q1 		$5.65M Buy
239,449
+85,949
+56% +$2.11M 0.05% 162
2016
Q4 		$3.75M Buy
153,500
+136,505
+803% +$2.98M 0.03% 241
2016
Q3 		$370K Buy
16,995
+973
+6% +$20.3K ﹤0.01% 625
2016
Q2 		$300K Buy
+16,022
New +$290K ﹤0.01% 654

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
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