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Karel K Czanderna

CIK 1443223 · President & CEO · last filed 2022-05-23

Karel K Czanderna is a President & CEO who has filed 26 SEC Form 4 insider transactions across 3 companies since 2008. The most recent filing, for BXC, was dated May 23, 2022. Across all open-market trades the lifetime net is +$10.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $16.7M 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

$16.74M

Companies

3

Total Filings

26

Lifetime Open-Market Net

$10.0K

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
BXC Director 25,833 $57.40 $1.48M $0 5 2022-05-23
FLXS President & CEO 62,522 $75.19 $4.70M $0 16 2017-09-08
OC Group Pres., Bldg. Materials 75,975 $138.95 $10.56M $10.0K 5 2010-03-02

Recent Filings

26 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
2022-05-23 BXC Mixed +24,991 $0 EDGAR
2021-05-24 BXC Grant (A) — $0 EDGAR
2020-05-26 BXC Grant (A) — $0 EDGAR
2019-05-21 BXC Grant (A) — $0 EDGAR
2018-01-16 BXC Grant (A) — $0 EDGAR
2017-09-08 FLXS Grant (A) — $0 EDGAR
2017-09-06 FLXS Mixed +10,452 $475.8K EDGAR
2017-07-05 FLXS Mixed +1,041 $56.3K EDGAR
2016-09-02 FLXS Grant (A) — $0 EDGAR
2016-08-24 FLXS Mixed +14,634 $634.4K EDGAR
Showing 1–10 of 26
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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.