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Michael Olaf Thamm

CIK 1553147 · Group CEO - Costa Crociere · last filed 2023-02-23

Michael Olaf Thamm is a Group CEO - Costa Crociere who has filed 41 SEC Form 4 insider transactions across 1 company since 2012. The most recent filing, for CUK, was dated Feb 23, 2023. Across all open-market trades the lifetime net is −$17.3M, 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

1

Total Filings

41

Lifetime Open-Market Net

-$17.30M

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
CARNIVAL PLC (CUK) Delisted Group CEO - Costa Crociere 294,308 $27.47 $8.08M -$17.30M 41 2023-02-23

Recent Filings

41 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
2023-02-23 CARNIVAL PLC (CUK) Delisted Grant (A) +187,838 $0 EDGAR
2023-02-08 CARNIVAL PLC (CUK) Delisted Mixed +59,768 -$544.0K EDGAR
2023-01-23 CARNIVAL PLC (CUK) Delisted Tax (F) −26,171 -$236.0K EDGAR
2022-02-17 CARNIVAL PLC (CUK) Delisted Mixed — -$79.2K EDGAR
2022-01-21 CARNIVAL PLC (CUK) Delisted Sell (S) −55,681 -$1.11M EDGAR
2022-01-20 CARNIVAL PLC (CUK) Delisted Sell (S) −20,352 -$418.7K EDGAR
2021-07-16 CARNIVAL PLC (CUK) Delisted Sell (S) −16,175 -$329.4K EDGAR
2021-02-17 CARNIVAL PLC (CUK) Delisted Mixed −19,270 -$472.7K EDGAR
2021-01-21 CARNIVAL PLC (CUK) Delisted Grant (A) +167,045 $0 EDGAR
2021-01-19 CARNIVAL PLC (CUK) Delisted Sell (S) −23,538 -$420.7K EDGAR
Showing 1–10 of 41
Page 1 of 5
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.