L. Benjamin Ederington

CIK 1588279 · EVP, Legal & External Affairs · last filed 2026-02-23

L. Benjamin Ederington is an EVP, Legal & External Affairs who has filed 45 SEC Form 4 insider transactions across 2 companies since 2013. The most recent filing, for WLK, was dated Feb 23, 2026. Across all open-market trades the lifetime net is −$2.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.1M 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.

Disclosed Exposure

$6.07M

Companies

2

Total Filings

45

Lifetime Open-Market Net

-$2.26M

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
WLK	EVP, Legal & External Affairs	80,515	$72.16	$5.81M	-$2.53M	41	2026-02-23
WLKP	VP, General Counsel	12,000	$22.03	$264.4K	$269.8K	3	2020-03-23

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
2026-02-23	WLK	Mixed	+1,068	-$33.6K	EDGAR
2026-02-19	WLK	Mixed	+2,831	-$96.8K	EDGAR
2025-02-24	WLK	Mixed	+4,381	-$323.2K	EDGAR
2025-02-20	WLK	Mixed	+7,906	-$587.5K	EDGAR
2025-02-19	WLK	Mixed	+5,702	-$218.5K	EDGAR
2024-08-15	WLK	Mixed	+1,782	-$168.1K	EDGAR
2024-02-21	WLK	Mixed	+8,572	-$603.0K	EDGAR
2024-02-20	WLK	Grant (A)	—	$0	EDGAR
2023-08-31	WLK	Mixed	—	-$994.4K	EDGAR
2023-08-30	WLK	Notice (144)	−13,734	-$1.84M	EDGAR

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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.