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Grigorios Zikos

CIK 1983417 · Chief Executive Officer · last filed 2026-08-07

Grigorios Zikos is a Chief Executive Officer who has filed 4 SEC Form 4 insider transactions across 2 companies since 2026. The most recent filing shows the insider sold $442.9K of CMDB on Aug 7, 2026. Across all open-market trades the lifetime net is −$1.8M, making them a net seller over the disclosed history.

"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

$0

Companies

2

Total Filings

4

Lifetime Open-Market Net

-$1.80M

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
CMDB Chief Executive Officer 0 $19.72 $0 -$885.7K 2 2026-08-07
CMRE Chief Financial Officer 0 $15.24 $0 -$917.9K 1 2026-07-30

Recent Filings

4 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
2026-08-07 CMDB Sell (S) −24,203 -$442.9K EDGAR
2026-08-07 CMDB Sell (S) −24,203 -$442.9K EDGAR
2026-07-30 CMRE Sell (S) −59,840 -$917.9K EDGAR
2023-08-01 CMRE Notice (144) −59,840 -$598.4K EDGAR
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.