Citable ownership snapshot
CIEN's latest 13F holder table lists Citadel Advisors as the largest holder in this view with 1,328,564 shares valued at $651.74M.
| Holder | Report date | Value | Portfolio weight |
|---|---|---|---|
| Citadel Advisors | Jun 30, 2026 | $651.74M | 0.1% |
| AQR Capital Management | Jun 30, 2026 | $507.24M | 0.2% |
| Atreides Management | Jun 30, 2026 | $337.76M | 2.4% |
| Lone Pine Capital | Mar 31, 2026 | $314.28M | 2.5% |
| Point72 Asset Management | Jun 30, 2026 | $184.41M | 0.2% |
| Balyasny Asset Management | Jun 30, 2026 | $183.00M | 0.2% |
| Millennium Management | Jun 30, 2026 | $114.36M | 0.0% |
| Renaissance Technologies | Jun 30, 2026 | $90.64M | 0.1% |
Source: SEC EDGAR 13F filings; period Jun 30, 2026; filed Aug 14, 2026.
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