Insiders sold $101M and bought nothing on the open market.
96% of the selling was scheduled in advance under 10b5-1 plans. Director Thomas Michael Nevens sold $1.92M on Dec 15, 2025, 48% of their stake, outside a plan. The last open-market buy by an executive or director was in Oct 2014.
Get an email when CIEN's executives or directors buy, or make a large sale outside a plan.
Trades · last 2 years
| Date | Insider | Trade | Shares | Price | Value | Of their stake | Filing |
|---|---|---|---|---|---|---|---|
| Nov 2 | Gary B Smith President & CEO | Sold10b5-1 plan | 2,952 | $298.16 | 880K | 1.3% | Form 4 |
| Oct 15 | Brodie Gage EVP & Chief Product & Tech | Sold10b5-1 plan | 1,200 | $344.08 | 413K | 3.4% | Form 4 |
| Oct 15 | Dino Diperna EVP & Chief R&D Officer | Sold10b5-1 plan 2 parts | 890 | $347.04 average | 309K | 2.4% | Form 4 |
| Oct 15 | Gary B Smith President & CEO | Sold10b5-1 plan | 2,952 | $348.02 | $1.03M | 1.3% | Form 4 |
| Oct 15 | David M Rothenstein EVP & Chief Strategy Officer | Sold10b5-1 plan | 2,500 | $348.06 | 870K | 1.4% | Form 4 |
| Oct 1 | Gary B Smith President & CEO | Sold10b5-1 plan | 2,952 | $369.66 | $1.09M | 1.3% | Form 4 |
| Oct 1 | Marc D. Graff EVP & Chief Financial Officer | Sold10b5-1 plan | 97 | $355.19 | 34K | <0.1% | Form 4 |
| Oct 1 | Sheela Kosaraju EVP & Chief Legal Officer | Sold10b5-1 plan | 2,101 | $355.19 | 746K | 2.4% | Form 4 |
| Oct 1 | Jason Phipps EVP & Chief Customer Officer | Sold10b5-1 plan | 2,629 | $355.19 | 934K | 4.4% | Form 4 |
| Sep 25 | Joseph Cumello EVP & General Mgr. | Sold10b5-1 plan | 1,586 | $358.52 | 569K | 3.9% | Form 4 |
| Sep 24 | Bruce L. Claflin Director | SoldNo plan | 2,857 | $355.91 | $1.02M | 4.6% | Form 4 |
| Sep 23 | Thomas Michael Nevens Director | SoldNo plan | 3,738 | $359.04 | $1.34M | 52% | Form 4 |
| Sep 15 – 16 | Dino Diperna EVP & Chief R&D Officer | Sold10b5-1 plan 2 parts | 498 | $337.43 average | 168K | 1.3% | Form 4 |
| Sep 15 | Brodie Gage EVP & Chief Product & | Sold10b5-1 plan | 1,200 | $324.86 | 390K | 3.1% | Form 4 |
| Sep 15 | David M Rothenstein EVP & Chief Strategy Officer | Sold10b5-1 plan | 2,500 | $330.48 | 826K | 1.4% | Form 4 |
| Sep 15 | Gary B Smith President & CEO | Sold10b5-1 plan | 2,952 | $330.18 | 975K | 1.2% | Form 4 |
| Sep 1 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $362.90 | $1.07M | 1.2% | Form 4 |
| Aug 17 | Brodie Gage SVP Global Products & Supply | Sold10b5-1 plan | 1,200 | $439.24 | 527K | 3.0% | Form 4 |
| Aug 17 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $447.78 | $1.32M | 1.2% | Form 4 |
| Aug 14 | Marc D. Graff SVP & Chief Financial Officer | Sold10b5-1 plan | 4,995 | $430.72 | $2.15M | 4.4% | Form 4 |
| Aug 14 | David M Rothenstein SVP and Chief Strategy Officer | Sold10b5-1 plan | 2,500 | $438.10 | $1.1M | 1.4% | Form 4 |
| Aug 3 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $379.81 | $1.12M | 1.2% | Form 4 |
| Jul 15 | Brodie Gage SVP Global Products & Supply | Sold10b5-1 plan | 1,200 | $449.15 | 539K | 2.9% | Form 4 |
| Jul 15 | Dino Diperna SVP Global R&D | Sold10b5-1 plan 2 parts | 782 | $449.15 average | 351K | 1.9% | Form 4 |
| Jul 15 | David M Rothenstein SVP and Chief Strategy Officer | Sold10b5-1 plan | 2,500 | $420.91 | $1.05M | 1.3% | Form 4 |
| Jul 15 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $421.10 | $1.24M | 1.2% | Form 4 |
| Jul 1 | Marc D. Graff SVP & Chief Financial Officer | Sold10b5-1 plan | 126 | $466.20 | 59K | <0.1% | Form 4 |
| Jul 1 | Sheela Kosaraju SVP and General Counsel | Sold10b5-1 plan | 2,013 | $466.20 | 938K | 2.2% | Form 4 |
| Jul 1 | Jason Phipps SVP Global Sales and Marketing | Sold10b5-1 plan | 2,629 | $466.20 | $1.23M | 4.0% | Form 4 |
| Jul 1 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $468.83 | $1.38M | 1.1% | Form 4 |
| Jun 26 | Joseph Cumello SVP, General Mgr. Blue Planet | Sold10b5-1 plan | 1,586 | $466.33 | 740K | 3.6% | Form 4 |
| Jun 24 | Marc D. Graff SVP & Chief Financial Officer | Sold10b5-1 plan | 126 | $449.36 | 57K | <0.1% | Form 4 |
| Jun 15 | Brodie Gage SVP Global Products & Supply | Sold10b5-1 plan | 1,200 | $466.10 | 559K | 2.7% | Form 4 |
| Jun 15 | David M Rothenstein SVP and Chief Strategy Officer | Sold10b5-1 plan | 2,500 | $457.07 | $1.14M | 1.3% | Form 4 |
| Jun 15 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $457.02 | $1.35M | 1.1% | Form 4 |
| Jun 1 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $565.92 | $1.67M | 1.1% | Form 4 |
| May 15 | Brodie Gage SVP Global Products & Supply | Sold10b5-1 plan | 1,200 | $570.65 | 685K | 2.7% | Form 4 |
| May 15 | David M Rothenstein SVP and Chief Strategy Officer | Sold10b5-1 plan | 2,500 | $562.39 | $1.41M | 1.3% | Form 4 |
| May 15 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $562.05 | $1.66M | 1.1% | Form 4 |
| May 1 | Gary B Smith President, CEO | Sold10b5-1 plan | 2,952 | $537.74 | $1.59M | 1.1% | Form 4 |
- Nov 210b5-1 planGary B SmithPresident & CEO · sold 2,952 at $298.16880K1.3% of stake
- Oct 1510b5-1 planBrodie GageEVP & Chief Product & Tech · sold 1,200 at $344.08413K3.4% of stake
- Oct 1510b5-1 planDino DipernaEVP & Chief R&D Officer · sold 890 at avg $347.04309K2.4% of stake
- Oct 1510b5-1 planGary B SmithPresident & CEO · sold 2,952 at $348.02$1.03M1.3% of stake
- Oct 1510b5-1 planDavid M RothensteinEVP & Chief Strategy Officer · sold 2,500 at $348.06870K1.4% of stake
- Oct 110b5-1 planGary B SmithPresident & CEO · sold 2,952 at $369.66$1.09M1.3% of stake
- Oct 110b5-1 planMarc D. GraffEVP & Chief Financial Officer · sold 97 at $355.1934K<0.1% of stake
- Oct 110b5-1 planSheela KosarajuEVP & Chief Legal Officer · sold 2,101 at $355.19746K2.4% of stake
- Oct 110b5-1 planJason PhippsEVP & Chief Customer Officer · sold 2,629 at $355.19934K4.4% of stake
- Sep 2510b5-1 planJoseph CumelloEVP & General Mgr. · sold 1,586 at $358.52569K3.9% of stake
- Sep 24No planBruce L. ClaflinDirector · sold 2,857 at $355.91$1.02M4.6% of stake
- Sep 23No planThomas Michael NevensDirector · sold 3,738 at $359.04$1.34M52% of stake
- Sep 15 – 1610b5-1 planDino DipernaEVP & Chief R&D Officer · sold 498 at avg $337.43168K1.3% of stake
- Sep 1510b5-1 planBrodie GageEVP & Chief Product & · sold 1,200 at $324.86390K3.1% of stake
- Sep 1510b5-1 planDavid M RothensteinEVP & Chief Strategy Officer · sold 2,500 at $330.48826K1.4% of stake
- Sep 1510b5-1 planGary B SmithPresident & CEO · sold 2,952 at $330.18975K1.2% of stake
- Sep 110b5-1 planGary B SmithPresident, CEO · sold 2,952 at $362.90$1.07M1.2% of stake
- Aug 1710b5-1 planBrodie GageSVP Global Products & Supply · sold 1,200 at $439.24527K3.0% of stake
- Aug 1710b5-1 planGary B SmithPresident, CEO · sold 2,952 at $447.78$1.32M1.2% of stake
- Aug 1410b5-1 planMarc D. GraffSVP & Chief Financial Officer · sold 4,995 at $430.72$2.15M4.4% of stake
- Aug 1410b5-1 planDavid M RothensteinSVP and Chief Strategy Officer · sold 2,500 at $438.10$1.1M1.4% of stake
- Aug 310b5-1 planGary B SmithPresident, CEO · sold 2,952 at $379.81$1.12M1.2% of stake
- Jul 1510b5-1 planBrodie GageSVP Global Products & Supply · sold 1,200 at $449.15539K2.9% of stake
- Jul 1510b5-1 planDino DipernaSVP Global R&D · sold 782 at avg $449.15351K1.9% of stake
- Jul 1510b5-1 planDavid M RothensteinSVP and Chief Strategy Officer · sold 2,500 at $420.91$1.05M1.3% of stake
- Jul 1510b5-1 planGary B SmithPresident, CEO · sold 2,952 at $421.10$1.24M1.2% of stake
- Jul 110b5-1 planMarc D. GraffSVP & Chief Financial Officer · sold 126 at $466.2059K<0.1% of stake
- Jul 110b5-1 planSheela KosarajuSVP and General Counsel · sold 2,013 at $466.20938K2.2% of stake
- Jul 110b5-1 planJason PhippsSVP Global Sales and Marketing · sold 2,629 at $466.20$1.23M4.0% of stake
- Jul 110b5-1 planGary B SmithPresident, CEO · sold 2,952 at $468.83$1.38M1.1% of stake
- Jun 2610b5-1 planJoseph CumelloSVP, General Mgr. Blue Planet · sold 1,586 at $466.33740K3.6% of stake
- Jun 2410b5-1 planMarc D. GraffSVP & Chief Financial Officer · sold 126 at $449.3657K<0.1% of stake
- Jun 1510b5-1 planBrodie GageSVP Global Products & Supply · sold 1,200 at $466.10559K2.7% of stake
- Jun 1510b5-1 planDavid M RothensteinSVP and Chief Strategy Officer · sold 2,500 at $457.07$1.14M1.3% of stake
- Jun 1510b5-1 planGary B SmithPresident, CEO · sold 2,952 at $457.02$1.35M1.1% of stake
- Jun 110b5-1 planGary B SmithPresident, CEO · sold 2,952 at $565.92$1.67M1.1% of stake
- May 1510b5-1 planBrodie GageSVP Global Products & Supply · sold 1,200 at $570.65685K2.7% of stake
- May 1510b5-1 planDavid M RothensteinSVP and Chief Strategy Officer · sold 2,500 at $562.39$1.41M1.3% of stake
- May 1510b5-1 planGary B SmithPresident, CEO · sold 2,952 at $562.05$1.66M1.1% of stake
- May 110b5-1 planGary B SmithPresident, CEO · sold 2,952 at $537.74$1.59M1.1% of stake
Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.
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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.
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