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CIEN: insider buying, 13F holders, analyst moves
Ciena Corp - US
A summary of public filings about Ciena Corp - US. For the latest insider history, price chart, analyst changes and activist filings, open the live lookup.
SEC Form 13F · Q2 2026
4 of our 100 managers hold CIEN
Combined reported value $719.2M; 3 sold out since Q1 2026.
Holders among our 100 managers: 4 in Q3 2023, 4 in Q2 2026.
| Manager | Value | % of portfolio | Change vs Q1 2026 |
|---|---|---|---|
| Atreides | $337.8M | 3.03% | Added |
| Jericho Capital Asset | $275.5M | 2.28% | Trimmed |
| Rokos Capital | $62.3M | 0.78% | Added |
| SCGE | $43.7M | 0.74% | New |
Important information
Facts from public SEC filings, shown for information only. Not a recommendation. Not individualized investment advice. Gulfstream Capital and its clients may hold positions in securities shown.