Robert F Hoffman

CIK 1603836 · SVP, IT and CAO · last filed 2026-03-13

Robert F Hoffman is a SVP, IT and CAO who has filed 13 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing shows the insider sold $595.0K of CENX on Mar 13, 2026. Across all open-market trades the lifetime net is −$1.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.7M 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

$2.65M

Companies

1

Total Filings

13

Lifetime Open-Market Net

-$1.56M

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
CENX	SVP, IT and CAO	56,657	$46.78	$2.65M	-$1.56M	11	2026-03-13

Recent Filings

13 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
2026-03-13	CENX	Sell (S)	−10,529	-$595.0K	EDGAR
2026-03-06	CENX	Sell (S)	−10,000	-$563.3K	EDGAR
2026-03-02	CENX	Notice (144)	−20,529	-$1.06M	EDGAR
2026-01-05	CENX	Mixed	+18,089	-$732.0K	EDGAR
2025-03-24	CENX	Sell (S)	−5,000	-$101.2K	EDGAR
2025-03-18	CENX	Sell (S)	−2,500	-$50.0K	EDGAR
2025-03-17	CENX	Notice (144)	−12,000	-$245.9K	EDGAR
2025-01-03	CENX	Mixed	+14,727	-$132.1K	EDGAR
2024-01-03	CENX	Mixed	+13,303	-$43.6K	EDGAR
2023-12-22	CENX	Sell (S)	−12,000	-$144.7K	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.