Latest filingSep 02, 2026Most recent Form 4
CIEN
CIENA CORP
NYSETechnologyTelephone & Telegraph Apparatus
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$616M5 sells
Net open-market-$616M4 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period5transactions
- S · Open-market sells · dominant5 · 100%
Activity by reported role
A joint filing can contribute to multiple roles9transactions
- Chief executive officer · dominant2 · 22%
- PRES2 · 22%
- SVP2 · 22%
- Chief financial officer1 · 11%
- CSO1 · 11%
- SGP1 · 11%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (4)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeSmith Gary BCommon Stock · Direct
243,078Sep 01, 2026
Rothenstein David MCommon Stock · Direct
180,231Aug 14, 2026
Graff Marc D.Common Stock · Direct
107,519Aug 14, 2026
Gage BrodieCommon Stock · Direct
38,407Aug 17, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
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Top insiders
By absolute net value across the selected period- SB-$2.4M
- GD-$2.2M
- RM-$1.1M
- GB-$527.1k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
CIEN transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| CIEN | SMITH GARY B | PRESCEO | sale10b5-1 | 2.95k | -$107M | S | — | 0.0% | 09/02 | 09/01 |
| CIEN | Graff Marc D. | SVPCFO | sale10b5-1 | 4.99k | -$215M | S | −11.1% | 08/18 | 08/14 | |
| CIEN | Rothenstein David M | SVPCSO | sale10b5-1 | 2.50k | -$109M | S | −11.1% | 08/18 | 08/14 | |
| CIEN | SMITH GARY B | PRESCEO | sale10b5-1 | 2.95k | -$132M | S | −11.1% | 08/18 | 08/17 | |
| CIEN | Gage Brodie | SGP | sale10b5-1 | 1.20k | -$52.7M | S | −11.1% | 08/18 | 08/17 |
CIENA CORP Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at CIENA CORP?
SMITH GARY B, Graff Marc D., Rothenstein David M, Gage Brodie.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Smith Gary B reported a sale on Sep 01, 2026 valued at $107M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $6,166,891.62. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.