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John C Pfeifer

CIK 1434515 · President & CEO · last filed 2026-09-17

John C Pfeifer is a President & CEO who has filed 89 SEC Form 4 insider transactions across 3 companies since 2009. The most recent filing, for JHX, was dated Sep 17, 2026. Across all open-market trades the lifetime net is −$3.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $28.5M 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

$28.49M

Companies

3

Total Filings

89

Lifetime Open-Market Net

-$3.09M

Filer Profile

Reported Address
C/O OSHKOSH CORPORATION
1917 FOUR WHEEL DRIVE
OSHKOSH, WI 54902
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
JHX Director 6,112 $27.14 $165.8K $0 2 2026-09-17
OSK President & CEO 150,668 $144.07 $21.71M -$116.7K 59 2026-09-15
BC SVP & PRES MERCURY MARINE 98,619 $67.11 $6.62M -$2.98M 27 2019-02-15

Recent Filings

89 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
2026-09-17 JHX Grant (A) +751 $0 EDGAR
2026-09-15 OSK Sell (S) −778 -$116.7K EDGAR
2026-09-11 OSK Notice (144) −14,250 -$2.11M EDGAR
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
Showing 1–10 of 89
Page 1 of 9
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.