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CIEN · CIENA CORP

Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research case for this company.

Open-market buys0
Open-market sells17
Research cases0
Last filing2026-10-15

Insider flow: Selling only — a count of disclosed transactions, not a rating or a recommendation.

Insider transaction timeline

Every reported transaction, positioned by trade date. Purchases sit above the axis, sales below; circle area is proportional to dollar value. No share-price line is drawn — this feed carries transaction prices only, and a price history inferred from them would imply market data the filings do not contain.

Open-market purchase Open-market sale
2026-09-01 — SMITH GARY B · sold 2,952 @ $362.90 2026-09-15 — SMITH GARY B · sold 2,952 @ $330.18 2026-09-15 — Rothenstein David M · sold 2,500 @ $330.48 2026-09-15 — DiPerna Dino · sold 249 @ $324.86 2026-09-15 — Gage Brodie · sold 1,200 @ $324.86 2026-09-16 — DiPerna Dino · sold 249 @ $350.00 2026-09-23 — NEVENS THOMAS MICHAEL · sold 3,738 @ $359.04 2026-09-24 — Claflin Bruce L. · sold 2,857 @ $355.91 2026-09-25 — Cumello Joseph · sold 1,586 @ $358.52 2026-10-01 — SMITH GARY B · sold 2,952 @ $369.66 2026-10-01 — Phipps Jason · sold 2,629 @ $355.19 2026-10-01 — Kosaraju Sheela · sold 2,101 @ $355.19 2026-10-01 — Graff Marc D. · sold 97 @ $355.19 2026-10-15 — SMITH GARY B · sold 2,952 @ $348.02 2026-10-15 — Rothenstein David M · sold 2,500 @ $348.06 2026-10-15 — DiPerna Dino · sold 445 @ $350.00 2026-10-15 — Gage Brodie · sold 1,200 @ $344.08
2026-09-012026-10-15

Insider participation

One row per insider, one cell per reported transaction, shaded by value. Repeat buying and activity clustered in time are visible at a glance.

SMITH GARY B President, CEO
DiPerna Dino EVP & Chief R&D Officer
Rothenstein David M EVP & Chief Strategy Officer
Gage Brodie EVP & Chief Product &
NEVENS THOMAS MICHAEL Director
Claflin Bruce L. Director
Cumello Joseph EVP & General Mgr.
Phipps Jason EVP & Chief Customer Officer
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The analysis built on top of these filings

The filings above are public record and stay public here. What an account adds for $CIEN is the reading of them — and for this company, that is what the list below says it is, no more.

  • Transaction timelineThe [{'transaction_date': '2026-10-15', 'insider_name': 'SMITH GARY B', 'insider_title': 'President & CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 2952.0, 'price': 348.0203, 'value': 1027355.93, 'is_buy': False}, {'transaction_date': '2026-10-15', 'insider_name': 'Rothenstein David M', 'insider_title': 'EVP & Chief Strategy Officer', 'transaction_type': 'Open-market sell', 'shares': 2500.0, 'price': 348.0629, 'value': 870157.25, 'is_buy': False}, {'transaction_date': '2026-10-15', 'insider_name': 'DiPerna Dino', 'insider_title': 'EVP & Chief R&D Officer', 'transaction_type': 'Open-market sell', 'shares': 445.0, 'price': 350.0, 'value': 155750.0, 'is_buy': False}, {'transaction_date': '2026-10-15', 'insider_name': 'Gage Brodie', 'insider_title': 'EVP & Chief Product & Tech', 'transaction_type': 'Open-market sell', 'shares': 1200.0, 'price': 344.08, 'value': 412896.0, 'is_buy': False}, {'transaction_date': '2026-10-01', 'insider_name': 'SMITH GARY B', 'insider_title': 'President & CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 2952.0, 'price': 369.6605, 'value': 1091237.8, 'is_buy': False}, {'transaction_date': '2026-10-01', 'insider_name': 'Phipps Jason', 'insider_title': 'EVP & Chief Customer Officer', 'transaction_type': 'Open-market sell', 'shares': 2629.0, 'price': 355.19, 'value': 933794.51, 'is_buy': False}, {'transaction_date': '2026-10-01', 'insider_name': 'Kosaraju Sheela', 'insider_title': 'EVP & Chief Legal Officer', 'transaction_type': 'Open-market sell', 'shares': 2101.0, 'price': 355.19, 'value': 746254.19, 'is_buy': False}, {'transaction_date': '2026-10-01', 'insider_name': 'Graff Marc D.', 'insider_title': 'EVP & Chief Financial Officer', 'transaction_type': 'Open-market sell', 'shares': 97.0, 'price': 355.19, 'value': 34453.43, 'is_buy': False}, {'transaction_date': '2026-09-25', 'insider_name': 'Cumello Joseph', 'insider_title': 'EVP & General Mgr.', 'transaction_type': 'Open-market sell', 'shares': 1586.0, 'price': 358.52, 'value': 568612.72, 'is_buy': False}, {'transaction_date': '2026-09-24', 'insider_name': 'Claflin Bruce L.', 'insider_title': 'Director', 'transaction_type': 'Open-market sell', 'shares': 2857.0, 'price': 355.91, 'value': 1016834.87, 'is_buy': False}, {'transaction_date': '2026-09-23', 'insider_name': 'NEVENS THOMAS MICHAEL', 'insider_title': 'Director', 'transaction_type': 'Open-market sell', 'shares': 3738.0, 'price': 359.04, 'value': 1342091.52, 'is_buy': False}, {'transaction_date': '2026-09-16', 'insider_name': 'DiPerna Dino', 'insider_title': 'EVP & Chief R&D Officer', 'transaction_type': 'Open-market sell', 'shares': 249.0, 'price': 350.0, 'value': 87150.0, 'is_buy': False}, {'transaction_date': '2026-09-15', 'insider_name': 'SMITH GARY B', 'insider_title': 'President & CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 2952.0, 'price': 330.18, 'value': 974691.36, 'is_buy': False}, {'transaction_date': '2026-09-15', 'insider_name': 'Rothenstein David M', 'insider_title': 'EVP & Chief Strategy Officer', 'transaction_type': 'Open-market sell', 'shares': 2500.0, 'price': 330.48, 'value': 826200.0, 'is_buy': False}, {'transaction_date': '2026-09-15', 'insider_name': 'DiPerna Dino', 'insider_title': 'EVP & Chief R&D Officer', 'transaction_type': 'Open-market sell', 'shares': 249.0, 'price': 324.86, 'value': 80890.14, 'is_buy': False}, {'transaction_date': '2026-09-15', 'insider_name': 'Gage Brodie', 'insider_title': 'EVP & Chief Product &', 'transaction_type': 'Open-market sell', 'shares': 1200.0, 'price': 324.86, 'value': 389832.0, 'is_buy': False}, {'transaction_date': '2026-09-01', 'insider_name': 'SMITH GARY B', 'insider_title': 'President, CEO', 'transaction_type': 'Open-market sell', 'shares': 2952.0, 'price': 362.899, 'value': 1071277.85, 'is_buy': False}] reported transactions plotted over the window rather than listed, so concentration is visible.

Not available for CIEN today: no reported open-market purchases in this window, so there is no insider cost basis to compute; no research case — nothing here has cleared the scoring threshold. Both appear on this page on their own if that changes.

A free account opens all of it.

Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.