Highest-materiality recent filing
Westlake Q1 net loss $169M ($1.31/sh); EBITDA excl. items $235M, down 20% YoY
Net loss of $169M (diluted loss $1.31); excl. $85M items net loss $100M ($0.77).
Westlake signs non-binding LOI to acquire VYNOVA Wilhelmshaven PVC/VCM site in Germany
Non-binding LOI with preliminary insolvency administrator of VYNOVA Wilhelmshaven GmbH for PVC/VCM production site.
Westlake agrees to pay $67M to settle PVC pipe antitrust class action
Settlement of $67 million with direct purchaser class; subject to preliminary and final court approval.
Robert F. Buesinger steps down as EVP & Segment Head; transitions to Special Advisor to President effective April 2, 2026.
Westlake Q4 net loss $544M (-$4.22/sh); FY loss $1.51B; targets $600M EBITDA improvement
Net loss $544M (GAAP diluted EPS -$4.22); adjusted net loss $33M (-$0.25/sh) excl. $511M shutdown & restructuring items.
Westlake completes acquisition of ACI compounding solutions; expands into Portugal, Romania, Tunisia
Acquisition of ACI/Perplastic Group's global compounding solutions businesses completed effective January 5, 2026.
Closure includes PVC plant in Aberdeen, MS (1B lbs/year), VCM plant in Lake Charles, LA North (910M lbs/year), and a chlor-alkali unit (825M lbs chlorine, 910M lbs caustic soda).
Westlake prices $1.2B senior notes offering to fund tender offer and ACI acquisition
$600M 5.550% notes due 2035 and $600M 6.375% notes due 2055 priced, expected to close Nov 6, 2025.
Westlake Corp launches tender offer for $750M 3.600% Senior Notes due 2026 and new notes offering
Westlake commenced a cash tender offer for any and all of its $750 million aggregate principal 3.600% Senior Notes due 2026.
Westlake Q3 net loss $782M on $727M goodwill impairment; adjusted EPS -$0.29 vs $1.41 YoY
Net loss $782M ($6.06/share) vs net income $108M ($0.83) YoY; excludes $744M identified items.
Westlake agrees to acquire ACI compounding solutions for EUR 210M annual sales
Acquires global compounding solutions businesses of Portugal-based ACI/Perplastic Group.
Westlake Q2 2025 net loss $142M ($1.11 EPS); EBITDA excl. items $340M, down 54% YoY
Net loss $142M ($1.11 diluted EPS); excl. Identified Items net loss $12M ($0.09 EPS).
Westlake plans full closure of Pernis facility; expects EUR 190M pre-tax costs
Plans to close entire Pernis facility (AC, ECH, LER, BPA units) in the Netherlands; consultations with works councils started June 13, 2025.
Westlake posts Q1 net loss of $40M; EBITDA down 47% YoY on higher costs and outages
Net loss of $40M ($0.31 diluted loss) vs net income of $174M ($1.34) in Q1 2024.
Westlake Q4 net income $7M ($0.06 EPS); EBITDA up 7% YoY on volume growth
Q4 net sales $2.8B (+1% YoY); full-year net sales $12.1B (-3% YoY).
Westlake Q3 GAAP EPS $0.83, adjusted $1.41; EBITDA down 22% QoQ on outages and mothball
Net sales $3.1B flat YoY but down 3% QoQ; volume -4%, price +1%.
Westlake Q2 net income $313M, record HIP EBITDA $336M; names new CEO
Net sales $3,207M, net income $313M ($2.40 diluted EPS), up from $297M in Q2 2023.
Westlake to mothball AC and ECH units at Pernis; expects EUR 80M pre-tax costs
Approved mothball of allyl chloride and epichlorohydrin units at Pernis, Netherlands; expected to cease operations in 2025.
Westlake appoints Jean-Marc Gilson as President and CEO; Chao family moves to Chairman roles
Jean-Marc Gilson (former CEO of Mitsubishi Chemical Group) becomes President and CEO effective July 15, 2024.
EU initiates anti-dumping probe on epoxy resin imports; Westlake among complainants
European Commission published notice on July 1, 2024 initiating anti-dumping investigation on epoxy resin imports from China, South Korea, Taiwan, and Thailand.
Westlake Q1 net income $174M ($1.34 EPS); HIP EBITDA record $264M
Net sales $2,975M down 11% YoY; net income $174M down from $394M YoY.
Westlake coalition files antidumping petitions on epoxy resin imports from five countries
On April 3, 2024, coalition including Westlake filed antidumping petitions on epoxy resin imports from China, India, South Korea, Taiwan, and Thailand.
Westlake Q4 net loss $497M on $2.8B revenue; $625M in charges drag results
Q4 net loss of $497M ($3.86 diluted loss) includes $475M impairment on epoxy assets and $150M litigation settlement charge.
Settlements total ~$382 million to resolve lawsuits related to Petro 2 flash fire (Sept 2021) and EDC storage tank explosion (Jan 2022).
On August 8, 2024, the Compensation Committee of the Board of Directors (the “Board”) of Westlake Corporation (the “Company”) approved the following changes to the compensation of Albert Chao in connection with Mr. Chao’s transition from President and Chief Executive Officer of the Company to Executive Chairman of the Board.
Albert Chao, formerly the President, Chief Executive Officer and Director of the Company, transitioned to the position of Executive Chairman of the Board.
Jean-Marc Gilson was appointed as the President and Chief Executive Officer of the Company.
On May 22, 2024, Marius A. Haas informed Westlake Corporation (the “Company”) of his decision to resign from the Board of Directors of the Company in order to focus on BayPine Capital, a private equity investment company of which he is a founding partner.
Mr. Holy transitioned to the position of Vice President, Chief Accounting Officer from his prior role as Vice President and Treasurer. Mr. Zoeller transitioned to the position of Vice President and Treasurer from his prior role as Vice President, Chief Accounting Officer.
Mr. Holy transitioned to the position of Vice President, Chief Accounting Officer from his prior role as Vice President and Treasurer. Mr. Zoeller transitioned to the position of Vice President and Treasurer from his prior role as Vice President, Chief Accounting Officer.
Max materiality 0.90 · Median 0.65 · Most common event earnings