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Cramer Rosenthal McGlynn LLC

SEC CIK
0000820743
Latest filing
Aug 13, 2026

CIEN holding history

Ciena Corp in every 13F filed by Cramer Rosenthal McGlynn LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CIEN overviewAll 13F holders of CIENFull Q2 2026 holdings

Shares (Q2 2026)
21,869
Value
$10.7M
% of portfolio
0.5%
Quarters held
17
Since Q2 2022
Holdings of CIEN by Cramer Rosenthal McGlynn LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202621,869$10.7M0.5%−8,022−26.8%ReducedHolders
Q1 202629,891$11.6M0.9%−66,673−69.0%ReducedHolders
Q4 202596,564$22.6M1.5%−84,166−46.6%ReducedHolders
Q3 2025180,730$26.3M1.7%−284,761−61.2%ReducedHolders
Q2 2025465,491$37.9M2.6%+66,518+16.7%AddedHolders
Q1 2025398,973$24.1M1.7%−27,653−6.5%ReducedHolders
Q4 2024426,626$36.2M2.0%−274,582−39.2%ReducedHolders
Q3 2024701,208$43.2M2.4%+213,760+43.9%AddedHolders
Q2 2024487,448$23.5M1.4%+16,003+3.4%AddedHolders
Q1 2024471,445$23.3M1.3%−111,354−19.1%ReducedHolders
Q4 2023582,799$26.2M1.4%−20,908−3.5%ReducedHolders
Q3 2023603,707$28.5M1.6%−22,042−3.5%ReducedHolders
Q2 2023625,749$26.6M1.3%+23,571+3.9%AddedHolders
Q1 2023602,178$31.6M1.4%+9,839+1.7%AddedHolders
Q4 2022592,339$30.2M1.3%+536,601+962.7%AddedHolders
Q3 202255,738$2.25M0.1%+4,614+9.0%AddedHolders
Q2 202251,124$2.34M0.1%+51,124NewHolders