Marc Prieur

CIK 1744506 · Segment President · last filed 2026-08-05

Marc Prieur is a Segment President who has filed 47 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing shows the insider sold $476.9K of ATR on Aug 5, 2026. Across all open-market trades the lifetime net is −$8.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.1M 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

$2.15M

Companies

1

Total Filings

47

Lifetime Open-Market Net

-$8.90M

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
ATR	Segment President	15,947	$134.75	$2.15M	-$8.90M	35	2026-08-05

Recent Filings

47 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
2026-08-05	ATR	Sell (S)	−3,500	-$476.9K	EDGAR
2026-08-04	ATR	Notice (144)	−3,500	-$476.0K	EDGAR
2026-06-10	ATR	Sell (S)	−5,000	-$577.9K	EDGAR
2026-06-09	ATR	Notice (144)	−5,000	-$565.0K	EDGAR
2026-05-04	ATR	Grant (A)	+7,969	$0	EDGAR
2026-03-19	ATR	Grant (A)	+2,609	$0	EDGAR
2026-02-11	ATR	Sell (S)	−2,000	-$275.6K	EDGAR
2026-02-09	ATR	Notice (144)	−2,000	-$272.0K	EDGAR
2025-06-16	ATR	Sell (S)	−2,000	-$305.6K	EDGAR
2025-06-12	ATR	Notice (144)	−2,000	-$308.0K	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.