MARK DOUGLAS

CIK 1434812 · President and CEO · last filed 2026-06-02

MARK DOUGLAS is a President and CEO who has filed 96 SEC Form 4 insider transactions across 3 companies since 2008. The most recent filing, for KWR, was dated Jun 2, 2026. Across all open-market trades the lifetime net is −$13.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.0M across reported positions. 54 SEC filings were submitted jointly with FMC CORP.

"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

$1.97M

Companies

3

Total Filings

96

Lifetime Open-Market Net

-$13.60M

Filer Profile

Reported Address

QUAKER CHEMICAL CORPORATION
901 E. HECTOR STREET
CONSHOHOCKEN, PA 19428-2380

Related Filers

FMC CORP — 54 joint filings, latest 2024-03-05

Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
KWR	Director	5,494	$161.50	$887.3K	-$669.9K	18	2026-06-02
FMC	President and CEO	83,436	$12.97	$1.08M	-$11.42M	51	2024-03-05
ROHM & HAAS CO (ROH) Delisted	Vice President	22,865	—	—	-$1.51M	26	2009-03-24

Recent Filings

96 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
2026-06-02	KWR	Mixed	+1,982	$0	EDGAR
2025-06-03	KWR	Mixed	+725	$0	EDGAR
2024-06-04	KWR	Grant (A)	—	$0	EDGAR
2024-03-05	FMC	Mixed	−6,669	$332.0K	EDGAR
2024-02-28	FMC	Tax (F)	−2,811	-$147.2K	EDGAR
2024-02-22	FMC	Mixed	+24,480	-$195.9K	EDGAR
2023-06-05	KWR	Grant (A)	+672	$0	EDGAR
2023-05-04	FMC	Buy (P)	+4,121	$476.1K	EDGAR
2023-03-15	FMC	Gift (G)	−550	$0	EDGAR
2023-03-01	FMC	Tax (F)	−3,359	-$432.9K	EDGAR

Showing 1–10 of 96

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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.