CIEN position history
The shares of Ciena (CIEN) that Shannon River Fund Management LLC reported in each quarter’s 13F.
Shares held by quarter
New Add Reduce Exit
- 2026 Q2: 81,298 shares, $40M, 3.6% of portfolio, New
| Holdings date | Value | % of holdings | Shares | Filing date | All 13F holders |
|---|