David M. Rothenstein
David M. Rothenstein: EVP & Chief Strategy Officer at Ciena. What David M. Rothenstein holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Ciena (CIEN)
David M. Rothenstein holds 175,381 Ciena shares (0.12% of the company), worth about $68.5M at the last price, according to the Form 4 of Sep 20, 2026.
- Shares held: 175,381 (0.12%), $68.5M — Held in their own name.
Declarations
- Ciena (CIEN) — Form 4 of Sep 20, 2026 (EVP & Chief Strategy Officer): shares withheld for tax of 679 at $348.80; shares withheld for tax of 204 at $348.80; 175,381 shares after 0001444157-26-000026
- Ciena (CIEN) — Form 4 of Sep 15, 2026 (EVP & Chief Strategy Officer): open-market sale of 2,500 at $330.48; 177,731 shares after 0001444157-26-000024
- Ciena (CIEN) — Form 4 of Aug 14, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $438.10; 180,231 shares after 0001444157-26-000022
- Ciena (CIEN) — Form 4 of Jul 15, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $420.91; 182,731 shares after 0001444157-26-000020
- Ciena (CIEN) — Form 4 of Jun 20, 2026 (SVP and Chief Strategy Officer): shares withheld for tax of 679 at $428.22; shares withheld for tax of 204 at $428.22; 185,231 shares after 0001444157-26-000018
- Ciena (CIEN) — Form 4 of Jun 15, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $457.07; 187,581 shares after 0001444157-26-000016
- Ciena (CIEN) — Form 4 of May 15, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $562.39; 190,081 shares after 0001444157-26-000014
- Ciena (CIEN) — Form 4 of Apr 15, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $467.65; 192,581 shares after 0001444157-26-000012
- Ciena (CIEN) — Form 4 of Mar 20, 2026 (SVP and Chief Strategy Officer): shares withheld for tax of 472 at $383.89; shares withheld for tax of 174 at $383.89; 195,081 shares after 0001123292-26-000502
- Ciena (CIEN) — Form 4 of Mar 16, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $345.00; 197,194 shares after 0001444157-26-000010
- Ciena (CIEN) — Form 4 of Feb 17, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $300.20; 199,694 shares after 0001444157-26-000007
- Ciena (CIEN) — Form 4 of Jan 9, 2026 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $219.28; 202,194 shares after 0001444157-26-000005
- Ciena (CIEN) — Form 4 of Dec 20, 2025 (SVP and Chief Strategy Officer): shares withheld for tax of 679 at $230.34; shares withheld for tax of 204 at $230.34; 204,694 shares after 0001444157-25-000033
- Ciena (CIEN) — Form 4 of Dec 16, 2025 (SVP and Chief Strategy Officer): grant or award of 15,910; grant or award of 17,664; 221,412 shares after 0001444157-25-000031
- Ciena (CIEN) — Form 4 of Dec 15, 2025 (SVP and Chief Strategy Officer): open-market sale of 2,500 at $220.84; 180,690 shares after 0001444157-25-000029
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.