Transactions
9
Insider / CIENA CORP
Graff Marc D.
SVP & Chief Financial Officer at CIENA CORP
- Company
- CIENA CORP
- Ticker
- CIEN
- First filing on record
- December 18, 2025
- Latest trade on record
- October 1, 2026
- SEC filings
- EDGAR ↗
Graff Marc D., SVP & Chief Financial Officer at CIENA CORP, has disclosed 9 transactions in CIEN since December 18, 2025: 0 purchases (0 open-market buys) and 8 sales, worth about $8.0M at the reported prices. The latest was filed October 6, 2026, 5 days after the trade; 2 filings were late against the 2-business-day Form 4 deadline.
Open-market buys
0
Sales
8
Avg. disclosure lag
3.3d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Graff Marc D. made no purchases and 8 sales worth $8.0M, plus 1 other transaction. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Graff Marc D. has traded 1 stock on record; the largest by dollars is CIEN.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
2 of 9 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| F | Shares withheld for tax | 4 | 15,125 | $5.7M |
| S | Open-market sale | 4 | 5,344 | $2.3M |
| A | Grant or award | 1 | 9,293 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 8 | 0 | 8 · $8.0M |
| 2025 | 1 | 0 | 0 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| CIEN | Sell S | October 1, 2026 | October 6, 2026 | 5d | 97 | $355 | $34K | late10b5-1 plan | Form 4 ↗ | |
| CIEN | Sell F | September 20, 2026 | September 22, 2026 | 2d | 286 | $349 | $100K | Form 4 ↗ | ||
| CIEN | Sell S | August 14, 2026 | August 18, 2026 | 4d | 4,995 | $431 | $2.2M | 10b5-1 plan | Form 4 ↗ | |
| CIEN | Sell F | August 1, 2026 | August 4, 2026 | 3d | 14,441 | $377 | $5.4M | Form 4 ↗ | ||
| CIEN | Sell S | July 1, 2026 | July 6, 2026 | 5d | 126 | $466 | $59K | late10b5-1 plan | Form 4 ↗ | |
| CIEN | Sell S | June 24, 2026 | June 26, 2026 | 2d | 126 | $449 | $57K | 10b5-1 plan | Form 4 ↗ | |
| CIEN | Sell F | June 20, 2026 | June 23, 2026 | 3d | 199 | $428 | $85K | Form 4 ↗ | ||
| CIEN | Sell F | March 20, 2026 | March 24, 2026 | 4d | 199 | $384 | $76K | Form 4 ↗ | ||
| CIEN | Other A | December 16, 2025 | December 18, 2025 | 2d | 9,293 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| October 6, 2026 | Form 4 | 0002080157-26-000015 | 1 | published | EDGAR ↗ |
| September 22, 2026 | Form 4 | 0002080157-26-000013 | 1 | published | EDGAR ↗ |
| August 18, 2026 | Form 4 | 0002080157-26-000010 | 1 | published | EDGAR ↗ |
| August 4, 2026 | Form 4 | 0002080157-26-000008 | 1 | published | EDGAR ↗ |
| July 6, 2026 | Form 4 | 0002080157-26-000006 | 1 | published | EDGAR ↗ |
| June 26, 2026 | Form 4 | 0002080157-26-000004 | 1 | published | EDGAR ↗ |
| June 23, 2026 | Form 4 | 0002080157-26-000002 | 1 | published | EDGAR ↗ |
| March 24, 2026 | Form 4 | 0001123292-26-000499 | 1 | published | EDGAR ↗ |
| December 18, 2025 | Form 4 | 0001123292-25-000763 | 1 | published | EDGAR ↗ |
Other insiders at CIENA CORP
- SMITH GARY B President, CEO 49 rows
- Phipps Jason SVP Global Sales and Marketing 42 rows
- Rothenstein David M SVP and Chief Strategy Officer 40 rows
- DiPerna Dino SVP Global R&D 39 rows
- Gage Brodie SVP Global Products & Supply 36 rows
- Cumello Joseph SVP, General Mgr. Blue Planet 31 rows
- Kosaraju Sheela SVP and General Counsel 31 rows
- FITT LAWTON W Director 10 rows
- NEVENS THOMAS MICHAEL Director 6 rows
- Claflin Bruce L. Director 4 rows
Everyone on file, with contracts and lobbying under the company's name: CIENA CORP.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 9 | 9 | December 18, 2025 | October 6, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.