Millennium Management
CIEN icon

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 		$21.5M Sell
55,400
-4,100
-7% -$1.25M 0.02% 1489
2025
Q4 		$13.9M Sell
59,500
-14,600
-20% -$2.83M 0.01% 1926
2025
Q3 		$10.8M Sell
74,100
-61,800
-45% -$6.29M 0.01% 2318
2025
Q2 		$11.1M Buy
135,900
+2,100
+2% +$151K 0.01% 2162
2025
Q1 		$8.09M Buy
133,800
+98,700
+281% +$7.8M 0.01% 2399
2024
Q4 		$2.98M Buy
35,100
+9,700
+38% +$696K ﹤0.01% 3320
2024
Q3 		$1.56M Buy
+25,400
New +$1.34M ﹤0.01% 3924
2015
Q2 		– Sell
-11,100
Closed -$214K – 3376
2015
Q1 		$214K Sell
11,100
-120,700
-92% -$2.41M ﹤0.01% 3263
2014
Q4 		$2.56M Buy
131,800
+73,300
+125% +$1.22M 0.01% 1816
2014
Q3 		$978K Buy
58,500
+21,600
+59% +$423K ﹤0.01% 2325
2014
Q2 		$799K Sell
36,900
-4,500
-11% -$92.4K ﹤0.01% 2323
2014
Q1 		$941K Buy
41,400
+10,000
+32% +$235K ﹤0.01% 2261
2013
Q4 		$751K Buy
+31,400
New +$748K ﹤0.01% 2466

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