Ownership history in ALGERT GLOBAL LLC · 18 quarters on record
This page tracks every 13F SEC filing in which ALGERT GLOBAL LLC reported a position in CIENA CORPORATION CMN COM (CIEN). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | ADDED | 42,630 | +5,674 | +15.4% | 0.10% | $6.2M | $145.67 |
| 2024 Q2 | REDUCED | 36,956 | -18,150 | -32.9% | 0.06% | $1.8M | $48.18 |
| 2024 Q1 | REDUCED | 55,106 | -17,190 | -23.8% | 0.11% | $2.7M | $49.45 |
| 2023 Q4 | ADDED | 72,296 | +11,637 | +19.2% | 0.13% | $3.3M | $45.01 |
| 2023 Q3 | ADDED | 60,659 | +54,973 | +966.8% | 0.13% | $2.9M | $47.26 |
| 2023 Q2 | UNCHANGED | 5,686 | — | 0% | 0.01% | $242K | $42.49 |
| 2023 Q1 | REDUCED | 5,686 | -11,809 | -67.5% | 0.01% | $299K | $52.52 |
| 2021 Q4 | UNCHANGED | 17,495 | — | 0% | 0.17% | $1.3M | $76.97 |
| 2021 Q3 | REDUCED | 17,495 | -110,979 | -86.4% | 0.12% | $898K | $51.35 |
| 2017 Q3 | ADDED | 128,474 | +41,959 | +48.5% | 0.65% | $2.8M | $21.97 |
As of 2025 Q4 — sorted by position size