John C Pfeifer

CIK 1434515 · President & CEO · last filed 2026-06-16

John C Pfeifer is a President & CEO who has filed 86 SEC Form 4 insider transactions across 3 companies since 2009. The most recent filing, for JHX, was dated Jun 16, 2026. Across all open-market trades the lifetime net is −$3.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $32.4M 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

$32.41M

Companies

3

Total Filings

86

Lifetime Open-Market Net

-$2.98M

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
JHX	Director	5,361	$30.23	$162.1K	$0	1	2026-06-16
OSK	President & CEO	155,908	$155.26	$24.21M	$0	58	2026-02-23
BC	SVP & PRES MERCURY MARINE	98,619	$81.55	$8.04M	-$2.98M	27	2019-02-15

Recent Filings

86 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
2026-06-16	JHX	Grant (A)	+1,081	$0	EDGAR
2026-02-23	OSK	Mixed	+28,723	$5.04M	EDGAR
2026-02-20	OSK	Mixed	+7,439	$1.27M	EDGAR
2026-02-18	OSK	Mixed	+8,699	$1.47M	EDGAR
2025-02-25	OSK	Mixed	+14,328	$1.48M	EDGAR
2025-02-21	OSK	Mixed	+6,518	$719.0K	EDGAR
2025-02-20	OSK	Mixed	+7,306	$801.7K	EDGAR
2025-02-19	OSK	Grant (A)	—	$0	EDGAR
2024-11-19	OSK	Mixed	+2,012	$218.5K	EDGAR
2024-04-03	OSK	Mixed	+1,939	-$212.2K	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.