| Due Diligence for Asset Managers |
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| Ciena Corp | |
|---|---|
| Ticker | CIEN |
| CIK # | 0000936395 |
| CUSIP | 171779309 |
| Sector | Manufacturing - Telephone & Telegraph Apparatus |
| Address | 1201 Winterson Road, Linthicum, MD 21090 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0000936395] | 10-K | |
| [0000936395] | 10-Q | |
| [0000936395] | 3 | |
| [0000936395] | 4 | |
| [0000936395] | 8-K | |
| [0000936395] | SC 13D | |
| [0000936395] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Cumello Joseph
Common Stock
|
2026-03-27 | Sell | 1,773 | $394.82 | 700,016 |
|
PUMA Mary G
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Nevens Thomas Michael
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Fitt Lawton W
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Olsen Joanne Beth
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Gallagher Patrick
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Kumar Devinder
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Claflin Bruce L
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Fitt Lawton W
Common Stock
|
2026-03-26 | Grant | 257 | $0.00 | |
|
Ahmed Hassan
Common Stock
|
2026-03-26 | Grant | 605 | $0.00 | |
|
Gage Brodie
Common Stock
|
2026-03-24 | Sell | 5,000 | $405.00 | 2,025,000 |
|
Gage Brodie
Common Stock
|
2026-03-20 | Tax withheld | 442 | $383.89 | 169,679 |
|
DiPerna Dino
Common Stock
|
2026-03-20 | Tax withheld | 427 | $383.89 | 163,921 |
|
Graff Marc D
Common Stock
|
2026-03-20 | Tax withheld | 199 | $383.89 | 76,394 |
|
DiPerna Dino
Common Stock
|
2026-03-20 | Tax withheld | 444 | $383.89 | 170,447 |
|
Kosaraju Sheela
Common Stock
|
2026-03-20 | Tax withheld | 164 | $383.89 | 62,958 |
|
Kosaraju Sheela
Common Stock
|
2026-03-20 | Tax withheld | 578 | $383.89 | 221,888 |
|
DiPerna Dino
Common Stock
|
2026-03-20 | Tax withheld | 730 | $383.89 | 280,240 |
|
Cumello Joseph
Common Stock
|
2026-03-20 | Tax withheld | 307 | $383.89 | 117,854 |
|
Cumello Joseph
Common Stock
|
2026-03-20 | Tax withheld | 128 | $383.89 | 49,138 |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 1,086 | 131,076,842 |
| 2025-12-31 | 861 | 133,720,322 |
| 2025-09-30 | 696 | 142,879,933 |
| 2025-06-30 | 570 | 139,424,693 |
| 2025-03-31 | 555 | 133,884,304 |
| 2024-12-31 | 540 | 130,921,083 |
| 2024-09-30 | 469 | 135,492,334 |
| 2024-06-30 | 457 | 132,518,852 |
| 2024-03-31 | 473 | 132,795,462 |
| 2023-12-31 | 456 | 127,645,750 |
| 2023-09-30 | 471 | 125,637,025 |
| 2023-06-30 | 470 | 125,933,607 |