Century Aluminum Company ($CENX) Insider Trading & Smart Money Activity

Century Aluminum Company · Aluminum · Latest filing Jun 15, 2026

Century Aluminum Company ($CENX) has 3 insider trades and 1 13F position change on file. Insiders filed 3 Form 4 transactions in the last 12 months, none of them open-market purchases or sales.

Insider buyers (12 mo): 0
Insider sellers (12 mo): 0
Net insider $ (12 mo): $0
Congress trades (12 mo): 0
13F moves on file: 1
Analyst ratings on file: 0

CENX insider buying and selling by quarter

Quarter	Congress buys / sales	13F added / cut
Q1 2026	0 / 0	0 / 0
Q2 2026	0 / 0	1 / 0
Q3 2026	0 / 0	0 / 0
Q4 2026	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All CENX insider, congress, 13F and analyst activity

Date	Source	Who	Action	Shares	Value / amount	1W	1M	Story
Jun 15, 2026	Insider	Tamla Olivier	Buy (Grant or award)	2.17K sh		-9.2%	-19.5%	—
Jun 15, 2026	Insider	Andrew Michelmore	Sell (Tax withholding)	652 sh	$35.57K	-9.2%	-19.5%	Read
Jun 15, 2026	Insider	Bush Jennifer Mary	Buy (Grant or award)	2.17K sh		-9.2%	-19.5%	Read
May 15, 2026	13F	Bridgewater Associates	Added	+460.72K sh	$34.67M	+14.5%	-4.0%	—

1W / 1M / 6M = how CENX moved from the trade or filing date.

Insider trading in CENX: who is buying and selling

Insider	Trades	Open-market net	Last trade
Tamla Olivier	1	—	Jun 15, 2026
Andrew Michelmore	1	—	Jun 15, 2026
Bush Jennifer Mary	1	—	Jun 15, 2026

Institutions moving CENX (13F)

Bridgewater Associates1

Frequently asked questions

What is the latest insider trade in CENX?

Tamla Olivier filed a buy (grant or award) of 2.17K sh on Jun 15, 2026.

Which institutions changed their CENX positions?

Recent 13F filers moving the stock include Bridgewater Associates.

Other aluminum stocks

All stocks Insider cluster buys Top insider purchases Congress 13F institutions

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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