CIEN — Ciena Corp Institutional Holders · Q3 2026
Who owns Ciena Corp (CIEN)? 47 institutions reported holding $31.57M in SEC 13F filings for Q3 2026 (period ended 2026-09-30). Largest holders: Mn Services Vermogensbeheer B.V. ($14.5M), Pacifica Partners Inc. ($2.1M), GAMMA Investing LLC ($2.0M).
Source: SEC Form 13F filings · as of 2026-09-30