John C Pfeifer

CIK 1434515 · President & CEO · last filed 2026-02-23

John C Pfeifer is a President & CEO who has filed 85 SEC Form 4 insider transactions across 4 companies since 2009. The most recent filing, for OSKw, was dated Feb 23, 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 $5.0M 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

$5.03M

Companies

4

Total Filings

85

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
OSKw President & CEO 155,908 $0 58 2026-02-23
BRUNSWICK CORP (BCpB) Delisted SVP & PRES MERCURY MARINE 88,890 $24.99 $2.22M $0 1 2019-02-15
BRUNSWICK CORP (BCpA) Delisted SVP & PRES MERCURY MARINE 70,952 $25.18 $1.79M $0 1 2018-10-29
BC PRES MERCURY MARINE 60,931 $82.56 $5.03M -$2.98M 25 2018-10-02

Recent Filings

85 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-02-23 OSKw Mixed +28,723 $5.04M EDGAR
2026-02-20 OSKw Mixed +7,439 $1.27M EDGAR
2026-02-18 OSKw Mixed +8,699 $1.47M EDGAR
2025-02-25 OSKw Mixed +14,328 $1.48M EDGAR
2025-02-21 OSKw Mixed +6,518 $719.0K EDGAR
2025-02-20 OSKw Mixed +7,306 $801.7K EDGAR
2025-02-19 OSKw Grant (A) $0 EDGAR
2024-11-19 OSKw Mixed +2,012 $218.5K EDGAR
2024-04-03 OSKw Mixed +1,939 -$212.2K EDGAR
2024-02-23 OSKw Mixed +4,098 -$396.4K EDGAR
Showing 110 of 85
Page 1 of 9
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.