North Growth Management Ltd.
- SEC CIK
- 0001745796
- Latest filing
- Jul 21, 2026
CIEN holding history
Ciena Corp in every 13F filed by North Growth Management Ltd., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
CIEN overviewAll 13F holders of CIENFull Q2 2026 holdings
- Shares (Q2 2026)
- 113,000
- Value
- $55.5M
- % of portfolio
- 7.1%
- Quarters held
- 22
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 113,000 | $55.5M | 7.1% | −44,000−28.0% | Reduced | Holders |
| Q1 2026 | 157,000 | $61.0M | 9.3% | −90,000−36.4% | Reduced | Holders |
| Q4 2025 | 247,000 | $57.7M | 9.0% | −78,000−24.0% | Reduced | Holders |
| Q3 2025 | 325,000 | $47.3M | 8.2% | −82,000−20.1% | Reduced | Holders |
| Q2 2025 | 407,000 | $33.1M | 6.2% | −22,000−5.1% | Reduced | Holders |
| Q1 2025 | 429,000 | $26.0M | 5.5% | −29,000−6.3% | Reduced | Holders |
| Q4 2024 | 458,000 | $38.9M | 7.4% | −73,000−13.7% | Reduced | Holders |
| Q3 2024 | 531,000 | $32.7M | 6.1% | +2,000+0.4% | Added | Holders |
| Q2 2024 | 529,000 | $25.5M | 5.0% | +1,000+0.2% | Added | Holders |
| Q1 2024 | 528,000 | $26.1M | 5.0% | −4,000−0.8% | Reduced | Holders |
| Q4 2023 | 532,000 | $24.0M | 5.1% | 00.0% | Unchanged | Holders |
| Q3 2023 | 532,000 | $25.2M | 5.6% | −11,000−2.0% | Reduced | Holders |
| Q2 2023 | 543,000 | $23.1M | 4.7% | +25,000+4.8% | Added | Holders |
| Q1 2023 | 518,000 | $27.2M | 5.8% | −9,000−1.7% | Reduced | Holders |
| Q4 2022 | 527,000 | $26.8M | 6.1% | 00.0% | Unchanged | Holders |
| Q3 2022 | 527,000 | $21.3M | 5.3% | +33,000+6.7% | Added | Holders |
| Q2 2022 | 494,000 | $22.6M | 5.2% | 00.0% | Unchanged | Holders |
| Q1 2022 | 494,000 | $30.0M | 5.5% | +2,000+0.4% | Added | Holders |
| Q4 2021 | 492,000 | $37.9M | 6.3% | −41,000−7.7% | Reduced | Holders |
| Q3 2021 | 533,000 | $27.4M | 4.8% | +1,000+0.2% | Added | Holders |
| Q2 2021 | 532,000 | $30.2M | 4.9% | +3,000+0.6% | Added | Holders |
| Q1 2021 | 529,000 | $29.0M | 5.1% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.