Historical shareholding details of Arrowstreet Capital Limited Partnership holdings in CIENA Corp. (CIEN)

Monthly changes of Arrowstreet Capital Limited Partnership shareholding in CIENA Corp. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Dec 31, 2024	Arrowstreet Capital Limited Partnership	529,555	0.37%

Sep 30, 2024	Arrowstreet Capital Limited Partnership	11,552	0.01%

Jun 30, 2024	Arrowstreet Capital Limited Partnership	111,414	0.08%

Mar 31, 2024	Arrowstreet Capital Limited Partnership	19,794	0.01%

Dec 31, 2023	Arrowstreet Capital Limited Partnership	15,895	0.01%

Mar 31, 2023	Arrowstreet Capital Limited Partnership	0	0.00%