Stocktoria
CIENA CORP CIEN
CIENA CORP institutional holders
| Investor | Shares | Value | % of company |
|---|---|---|---|
| BlackRock Finance, Inc. | 15,609,770 | $752.1M | 10.75% |
| AQR CAPITAL MANAGEMENT LLC | 977,094 | $374.5M | 0.67% |
| CITADEL ADVISORS LLC | 837,135 | $325.0M | 0.58% |
| LONE PINE CAPITAL LLC | 809,522 | $314.3M | 0.56% |
| Point72 Asset Management, L.P. | 736,855 | $286.1M | 0.51% |
| MILLENNIUM MANAGEMENT LLC | 236,116 | $91.7M | 0.16% |
| Bridgewater Associates, LP | 143,846 | $55.8M | 0.1% |
| RENAISSANCE TECHNOLOGIES LLC | 97,800 | $38.0M | 0.07% |
% of company = reported institutional shares ÷ shares outstanding. Based on the latest reports; not every holder reports every quarter.
Computed from company filings · US · as of 2025-11-01. Facts plus Stocktoria's own computed scores — not investment advice.