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David Thomas Seaton

CIK 1392152 · Chairman and CEO · last filed 2026-06-01

David Thomas Seaton is a Chairman and CEO who has filed 108 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for MOS, was dated Jun 1, 2026. Across all open-market trades the lifetime net is −$30.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $24.8M 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

$24.76M

Companies

4

Total Filings

108

Lifetime Open-Market Net

-$30.58M

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
MOS Director 51,089 $23.47 $1.20M $0 32 2026-06-01
NEM Director 5,140 $117.26 $602.7K $0 2 2026-05-15
COP Director 2,500 $123.03 $307.6K $98.5K 7 2026-01-20
FLR Chairman and CEO 433,497 $52.25 $22.65M -$30.68M 67 2019-04-12

Recent Filings

108 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
2026-06-01 MOS Mixed +3,167 $0 EDGAR
2026-05-15 NEM Grant (A) +1,645 $0 EDGAR
2026-01-20 COP Grant (A) — $0 EDGAR
2025-06-02 MOS Mixed +3,914 $0 EDGAR
2025-05-05 NEM Grant (A) +3,495 $0 EDGAR
2025-01-17 COP Grant (A) — $0 EDGAR
2024-06-07 MOS Mixed +2,996 $0 EDGAR
2024-05-21 MOS Exer (M) +2,882 $0 EDGAR
2024-01-17 COP Grant (A) — $0 EDGAR
2023-05-26 MOS Mixed +1,674 $0 EDGAR
Showing 1–10 of 108
Page 1 of 11
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.