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Diederik Karsten

CIK 1504380 · EVP, Chief Commerical Officer · last filed 2018-05-03

Diederik Karsten is an EVP, Chief Commerical Officer who has filed 45 SEC Form 4 insider transactions across 5 companies since 2011. The most recent filing, for LBTYK, was dated May 3, 2018. Across all open-market trades the lifetime net is −$5.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.2M 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

$3.19M

Companies

5

Total Filings

45

Lifetime Open-Market Net

-$5.25M

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
LBTYK EVP, Chief Commerical Officer 192,639 $10.09 $1.94M -$2.14M 16 2018-05-03
LILAK EVP, Chief Commerical Officer 170,325 $7.33 $1.25M $0 7 2017-10-03
Liberty Global Ltd. (LILA.K) Delisted EVP, Chief Commerical Officer 32,183 — — $0 9 2016-10-04
Liberty Global Ltd. (LILK.V) Delisted EVP, European BB Ops 8,547 — — -$1.11M 1 2015-06-24
Liberty Global Ltd. (LBTY.K) Delisted EVP, European BB Ops 55,642 — — -$2.01M 12 2015-05-05

Recent Filings

45 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
2018-05-03 LBTYK Mixed +31,093 -$980.8K EDGAR
2018-03-19 LBTYK Grant (A) +10,614 $0 EDGAR
2017-10-03 LILAK Mixed +18,269 -$626.9K EDGAR
2017-05-03 LILAK Grant (A) — $0 EDGAR
2017-04-04 LILAK Mixed +18,266 -$662.1K EDGAR
2017-04-03 LILAK Mixed +28,777 -$1.07M EDGAR
2017-02-23 LILAK Grant (A) — $0 EDGAR
2016-11-08 LILAK Grant (A) — $0 EDGAR
2016-11-08 LILAK Grant (A) — $0 EDGAR
2016-10-04 Liberty Global Ltd. (LILA.K) Delisted Mixed +22,858 -$807.6K EDGAR
Showing 1–10 of 45
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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.