Transactions
4
Insider / CIENA CORP
Claflin Bruce L.
Director at CIENA CORP
- Company
- CIENA CORP
- First filing on record
- March 30, 2026
- Latest trade on record
- September 24, 2026
- SEC filings
- EDGAR ↗
Claflin Bruce L., Director at CIENA CORP, has disclosed 4 transactions in CIEN, IDXX since March 30, 2026: 0 purchases (0 open-market buys) and 1 sale, worth about $1.0M at the reported prices. The latest was filed September 28, 2026, 4 days after the trade.
Open-market buys
0
Sales
1
Avg. disclosure lag
3.0d
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 Claflin Bruce L. made no purchases and 1 sale worth $1.0M, plus 3 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Claflin Bruce L. 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
0 of 3 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 |
|---|---|---|---|---|
| A | Grant or award | 3 | 1,364 | — |
| S | Open-market sale | 1 | 2,857 | $1.0M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 4 | 0 | 1 · $1.0M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| CIEN | Sell S | September 24, 2026 | September 28, 2026 | 4d | 2,857 | $356 | $1.0M | indirect | Form 4 ↗ | |
| IDXX | Other A | May 12, 2026 | May 14, 2026 | 2d | 234 | — | — | derivative | Form 4 ↗ | |
| IDXX | Other A | May 12, 2026 | May 14, 2026 | 2d | 525 | — | — | derivative | Form 4 ↗ | |
| CIEN | Other A | March 26, 2026 | March 30, 2026 | 4d | 605 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 28, 2026 | Form 4 | 0001123292-26-001329 | 1 | published | EDGAR ↗ |
| May 14, 2026 | Form 4 | 0000874716-26-000100 | 2 | published | EDGAR ↗ |
| March 30, 2026 | Form 4 | 0001403694-26-000002 | 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
- Erickson Michael G Executive Vice President 35 rows
- Cumello Joseph SVP, General Mgr. Blue Planet 31 rows
- Kosaraju Sheela SVP and General Counsel 31 rows
- FENNELL GEORGE Executive Vice President 27 rows
- Hunt Nimrata Executive Vice President 25 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.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- 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 | 3 | 4 | March 30, 2026 | September 28, 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.