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Insider Trading

Last Updated: 6 days, 16 hours ago

Dino Diperna has an estimated net worth of at least $22.6 million*, as of March 25, 2026. They own 45,289 shares of CIEN stock. They have sold 17,390 shares of CIEN stock since 2021, for an estimated $2.5 million.

Dino Diperna $CIEN SEC Form 4 Insider Trading

Dino Diperna has filed a total of 19 insider trades in $CIEN since 2021. Their most recent trade was a sale of 2,527 shares, made on Jan 15, 2026. Their largest trade was a sale of 2,527 shares, made on Jan 15, 2026. We estimate that they now own 45,289 shares of $CIEN, worth an estimated $20.1 million.



Insider Trading at $CIEN

There have been a total of 336 insider trades reported at $CIEN since 2021, with 0 shares purchased and 1.3 million shares sold. The most active insider traders in $CIEN stock have been Gary B Smith, David M Rothenstein, and Scott Mcfeely. The most recent trade was a sale of 1,773 shares reported by Joseph Cumello (SVP, General Mgr. Blue Planet), made on Mar 27, 2026.



History of Insider Stock Trades by Dino Diperna

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
CIEN logo CIEN Sale 2,527 Jan 15, 2026 Jan. 16, 2026, 3:32 p.m.
CIEN logo CIEN Sale 2,527 Jan 15, 2026 Jan. 16, 2026, 3:32 p.m.
CIEN logo CIEN Sale 1,241 Nov 17, 2025 Nov. 18, 2025, 5:46 p.m.
CIEN logo CIEN Sale 1,241 Nov 17, 2025 Nov. 18, 2025, 5:46 p.m.
CIEN logo CIEN Sale 367 Oct 15, 2025 Oct. 17, 2025, 1:39 p.m.
CIEN logo CIEN Sale 367 Oct 15, 2025 Oct. 17, 2025, 1:39 p.m.
CIEN logo CIEN Sale 367 Jul 15, 2025 July 16, 2025, 5:51 p.m.
CIEN logo CIEN Sale 367 Jul 15, 2025 July 16, 2025, 5:51 p.m.
CIEN logo CIEN Sale 367 Apr 15, 2025 April 17, 2025, 2:22 p.m.
CIEN logo CIEN Sale 367 Apr 15, 2025 April 17, 2025, 2:22 p.m.
CIEN logo CIEN Sale 751 Jan 15, 2025 Jan. 17, 2025, 3:03 p.m.
CIEN logo CIEN Sale 751 Jan 15, 2025 Jan. 17, 2025, 3:03 p.m.
CIEN logo CIEN Sale 1,341 Dec 26, 2024 Dec. 30, 2024, 1:46 p.m.
CIEN logo CIEN Sale 1,341 Dec 26, 2024 Dec. 30, 2024, 1:46 p.m.
CIEN logo CIEN Sale 245 Jul 01, 2024 July 3, 2024, 4:04 p.m.
CIEN logo CIEN Sale 245 Jul 01, 2024 July 3, 2024, 4:04 p.m.
CIEN logo CIEN Sale 490 Apr 01, 2024 April 3, 2024, 5:03 p.m.
CIEN logo CIEN Sale 800 Jan 02, 2024 Jan. 4, 2024, 9:19 p.m.
CIEN logo CIEN Sale 1,688 Nov 15, 2023 Nov. 20, 2023, 6:36 p.m.




$CIEN Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.