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Dino DiPerna

CIK 1998460 · SVP Global R&D · last filed 2026-07-17

Dino DiPerna is a SVP Global R&D who has filed 36 SEC Form 4 insider transactions across 2 companies since 2023. The most recent filing shows the insider sold $351.2K of CIEN on Jul 17, 2026. Across all open-market trades the lifetime net is −$4.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $12.8M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$12.84M

Companies

2

Total Filings

36

Lifetime Open-Market Net

-$4.16M

Filer Profile

Reported Address
385 TERRY FOX DR
OTTAWA, A6 K2K OL1
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CIEN SVP Global R&D 40,015 $321.00 $12.84M -$351.2K 2 2026-07-17
CIEND SVP Global R&D 42,460 — — -$3.81M 26 2026-04-16

Recent Filings

36 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-07-17 CIEN Sell (S) −782 -$351.2K EDGAR
2026-07-15 CIEN Notice (144) −782 -$351.2K EDGAR
2026-06-23 CIEN Tax (F) −2,054 -$879.6K EDGAR
2026-04-16 CIEND Sell (S) −2,829 -$1.33M EDGAR
2026-04-15 CIEN Notice (144) −2,829 -$1.33M EDGAR
2026-03-24 CIEND Tax (F) −2,052 -$787.7K EDGAR
2026-01-16 CIEND Sell (S) −5,054 -$1.24M EDGAR
2026-01-15 CIEN Notice (144) −5,054 -$1.24M EDGAR
2025-12-23 CIEND Tax (F) −7,359 -$1.70M EDGAR
2025-12-18 CIEND Grant (A) +21,707 $0 EDGAR
Showing 1–10 of 36
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.