CIP
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Cornerstone Investment Partners’s Ciena CIEN Stock Holding History

Cornerstone Investment Partners’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 		$2.03M Sell
5,239
-974
-16% -$298K 0.09% 37
2025
Q4 		$1.45M Sell
6,213
-106
-2% -$20.6K 0.06% 39
2025
Q3 		$920K Sell
6,319
-2,885
-31% -$294K 0.04% 45
2025
Q2 		$749K Sell
9,204
-101
-1% -$7.25K 0.03% 46
2025
Q1 		$562K Sell
9,305
-3,668
-28% -$290K 0.03% 57
2024
Q4 		$1.1M Buy
12,973
+597
+5% +$42.8K 0.05% 36
2024
Q3 		$762K Buy
12,376
+244
+2% +$12.9K 0.04% 45
2024
Q2 		$585K Buy
12,132
+149
+1% +$7.07K 0.03% 67
2024
Q1 		$593K Buy
11,983
+991
+9% +$52.3K 0.03% 69
2023
Q4 		$495K Sell
10,992
-311
-3% -$13.7K 0.03% 80
2023
Q3 		$534K Sell
11,303
-69
-0.6% -$3.04K 0.03% 66
2023
Q2 		$483K Buy
11,372
+972
+9% +$44.3K 0.03% 71
2023
Q1 		$546K Sell
10,400
-134
-1% -$6.69K 0.04% 67
2022
Q4 		$537K Buy
10,534
+134
+1% +$6.06K 0.03% 65
2022
Q3 		$420K Buy
10,400
+36
+0.3% +$1.73K 0.03% 70
2022
Q2 		$474K Buy
10,364
+1,819
+21% +$94.3K 0.03% 67
2022
Q1 		$518K Sell
8,545
-239
-3% -$15.6K 0.03% 69
2021
Q4 		$676K Buy
8,784
+3,627
+70% +$224K 0.04% 61
2021
Q3 		$265K Buy
+5,157
New +$286K 0.02% 121

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