CIEN
Ciena Corporation · Technology · Communication Equipment
Momentum inputs (comparable managers):
holder breadth +18.2% ·
share flow +30.0% ·
net new positions +15.4%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 4 | 0 | 669.70K | $259.53M | n/a | n/a |
| Q2 2026 | 165 | 0 | 109.34M | $53.45B | +7 | −9 |
| Q1 2026 | 170 | +8 | 110.57M | $42.60B | +12 | −5 |
| Q4 2025 | 161 | +1 | 118.52M | $27.07B | +3 | −1 |
| Q3 2025 | 22 | +1 | 86.19M | $12.55B | +1 | −1 |
| Q2 2025 | 19 | 0 | 67.83M | $5.52B | +1 | −1 |
| Q1 2025 | 16 | +2 | 16.02M | $967.48M | +2 | n/a |
| Q4 2024 | 14 | 0 | 15.33M | $1.30B | n/a | n/a |
| Q3 2024 | 13 | +2 | 7.15M | $440.46M | +2 | n/a |
| Q2 2024 | 11 | n/a | 5.15M | $248.36M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 2.41M | +1.4% | $148.35M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 2 | T. Rowe Price ✦ | 1.56M | +19.5% | $96.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 3 | Point72 Asset Management ✦ | 939.45K | New | $57.86M | 0.2% | New | 1 | SEC ↗ |
| 4 | AQR Capital Management ✦ | 804.96K | -9.2% | $49.58M | 0.1% | ▼ Trim | 2 | SEC ↗ ×3 |
| 5 | Citadel Advisors ✦ | 592.13K | +743.7% | $36.47M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 6 | Millennium Management ✦ | 412.76K | +540.3% | $25.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Gotham Asset Management ✦ | 134.49K | +134.2% | $8.28M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 8 | PRIMECAP Management ✦ | 127.50K | +4.1% | $7.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | Norges Bank ✦ (passive) | 71.98K | +75.2% | $4.43M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Two Sigma Investments ✦ | 57.20K | -49.7% | $3.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | Marshall Wace ✦ | 20.85K | +396.4% | $1.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Arrowstreet Capital ✦ | 11.55K | -89.6% | $711,488 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 6.75K | New | $415,733 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $57.86M | 0.2% |
| D. E. Shaw & Co. | $415,733 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,070 holders, 123.89M shares, $45.16B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 2.95K sh · $1.09M
Officer · 97 sh · $34,453
Officer · 2.10K sh · $746,254
Officer · 2.63K sh · $933,795
Officer · 1.59K sh · $568,605
Director · 2.86K sh · $1.02M
Director · 3.74K sh · $1.34M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology