Home

JOHN MAURICE SAMPSON

CIK 1655048 · Senior Vice President · last filed 2026-03-02

JOHN MAURICE SAMPSON is a Senior Vice President who has filed 43 SEC Form 4 insider transactions across 2 companies since 2015. The most recent filing shows the insider disposed of $90.2K of DOW on Mar 2, 2026. Across all open-market trades the lifetime net is +$154.7K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $5.3M 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.

Loading insider history…
Disclosed Exposure

$5.35M

Companies

2

Total Filings

43

Lifetime Open-Market Net

$154.7K

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
DOW Senior Vice President 134,860 $30.46 $4.11M $0 22 2026-03-02
OLN EVP, Business Operations 72,450 $17.13 $1.24M $154.7K 20 2020-03-05

Recent Filings

43 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
2026-03-02 DOW Disp (D) −3,016 -$90.2K EDGAR
2026-02-17 DOW Grant (A) +21,736 $0 EDGAR
2026-02-11 DOW Disp (D) −1,510 -$48.4K EDGAR
2025-12-02 DOW Disp (D) −323 -$7.7K EDGAR
2025-02-26 DOW Disp (D) −2,668 -$104.2K EDGAR
2025-02-18 DOW Grant (A) +19,064 $0 EDGAR
2025-02-12 DOW Disp (D) −1,368 -$52.8K EDGAR
2024-12-03 DOW Disp (D) −225 -$9.9K EDGAR
2024-03-06 DOW Mixed +250 -$12.2K EDGAR
2024-03-04 DOW Notice (144) −3,536 -$201.6K EDGAR
Showing 1–10 of 43
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.