secwatch / observer
CENX CENTURY ALUMINUM CO
CIK 0000949157 45 ready 8-Ks latest August 6, 2026, 4:09 PM ET RSS · JSON
Activity: NORMAL 1 filings / 30d vs 1 baseline Risk accumulating: auditor change (1)
Ready 8-Ks 45
Latest filing August 6, 2026, 4:09 PM ET
Top materiality 0.85
Event mix earnings ×22 · debt ×6 · leadership ×6
Sentiment 17 pos · 7 neg · 21 neu
Latest earnings reported 2026-Q1
Executive change recent →

Recent 8-K filings for CENX

Executive changes

Appointed

Peter Trpkovski

Executive Vice President and Chief Financial Officer
CENX · CENTURY ALUMINUM CO
Effective
2025-03-21
Filed
March 21, 2025, 7:59 PM ET
has been appointed to Executive Vice President and Chief Financial Officer, effective March 21, 2025
Departed

Gerald Bialek

Executive Vice President and Chief Financial Officer
CENX · CENTURY ALUMINUM CO
Effective
2025-03-21
Successor
Peter Trpkovski
Filed
March 21, 2025, 7:59 PM ET
will leave his position as Executive Vice President and Chief Financial Officer as part of a planned transition
Role change

Rob Hoffman

principal accounting officer
CENX · CENTURY ALUMINUM CO
Effective
2024-11-04
Successor
Theresa Brainerd
Filed
November 4, 2024, 6:59 PM ET
Rob Hoffman stepped down from his position as principal accounting officer of the Company.
Appointed

Theresa Brainerd

principal accounting officer
CENX · CENTURY ALUMINUM CO
Effective
2024-11-04
Filed
November 4, 2024, 6:59 PM ET
Theresa Brainerd, the Company’s Global Corporate Controller, has assumed the responsibilities of the principal accounting officer.
Departed

Michelle M. Harrison

Senior Vice President, Finance and Treasurer
CENX · CENTURY ALUMINUM CO
Effective
2023-07-01
Successor
Peter A. Trpkovski
Filed
June 9, 2023, 7:59 PM ET
On June 6, 2023, Michelle M. Harrison, Senior Vice President, Finance and Treasurer of the Company notified the Company of her decision to retire after more than 23 years of service with the Company.
Role change

Peter A. Trpkovski

Senior Vice President, Finance and Treasurer
CENX · CENTURY ALUMINUM CO
Effective
2023-07-01
Filed
June 9, 2023, 7:59 PM ET
In connection with Ms. Harrison's retirement, Peter A. Trpkovski, who is currently serving as Vice President, Finance and Investor Relations of the Company, will be promoted to the role of Senior Vice President, Finance and Treasurer, effective July 1, 2023.
Appointed

Gerald "Jerry" Bialek

Executive Vice President and Chief Financial Officer
CENX · CENTURY ALUMINUM CO
Effective
2022-08-22
Filed
August 1, 2022, 7:59 PM ET
On August 1, 2022, Century Aluminum Company (the “Company”) announced the hiring of Gerald “Jerry” Bialek as Executive Vice President and Chief Financial Officer of the Company.
Appointed (interim)

Michelle Harrison

principal financial officer
CENX · CENTURY ALUMINUM CO
Filed
February 4, 2022, 6:59 PM ET
Following Mr. Conti's departure, Michelle Harrison, the Company’s Senior Vice President, Finance and Treasurer, will assume the responsibilities of the principal financial officer while the Company conducts a search, both internally and externally, for a successor.
Departed

Craig Conti

Executive Vice President and Chief Financial Officer
CENX · CENTURY ALUMINUM CO
Effective
2022-03-01
Filed
February 4, 2022, 6:59 PM ET
On February 4, 2022, Century Aluminum Company (the “Company”) announced that Craig Conti will leave his position as Executive Vice President and Chief Financial Officer of the Company in order to be closer to family and to pursue other opportunities, effective March 1, 2022.
Appointed

Jennifer Bush

director
CENX · CENTURY ALUMINUM CO
Effective
2021-12-06
Filed
December 8, 2021, 6:59 PM ET
On December 6, 2021, the Board of Directors (the "Board") of Century Aluminum Company (the “Company”) increased the size of the Board from five to six members and appointed Jennifer ("Jenny") Bush as an independent director

Earnings & guidance

2026-Q1 EPS reported $3.23 filing →

Materiality & sentiment trend

Max materiality 0.85 · Median 0.70 · Most common event earnings

17 positive 7 negative 21 neutral

source · CENX on sec.gov