secwatch / observer
CBT CABOT CORP
CIK 0000016040 36 ready 8-Ks latest May 14, 2026, 8:00 AM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 36
Latest filing May 14, 2026, 8:00 AM ET
Top materiality 0.85
Event mix earnings ×20 · leadership ×5 · other ×4
Sentiment 14 pos · 3 neg · 19 neu
Latest earnings reported 2026-Q2
Executive change recent →

Recent 8-K filings for CBT

Executive changes

Appointed

Matthew Wood

Senior Vice President and President, Reinforcement Materials Segment
CBT · CABOT CORP
Effective
2025-06-15
Filed
June 3, 2025, 7:59 PM ET
The Board has appointed Matthew Wood a Senior Vice President of the Company, and Mr. Wood will succeed Mr. Kalkstein as President, Reinforcement Materials Segment.
Departed

Hobart C. Kalkstein

Executive Vice President and President, Reinforcement Materials Segment
CBT · CABOT CORP
Effective
2025-06-15
Successor
Matthew Wood
Filed
June 3, 2025, 7:59 PM ET
On May 30, 2025, Hobart C. Kalkstein, Executive Vice President and President, Reinforcement Materials Segment of Cabot Corporation (the "Company"), informed the Company’s Board of Directors (the "Board") of his decision to step down from those positions, effective June 15, 2025.
Appointed

Thierry Vanlancker

Director
CBT · CABOT CORP
Effective
2024-07-12
Filed
July 12, 2024, 7:59 PM ET
On July 12, 2024, the Board of Directors (the “Board”) of Cabot Corporation (“Cabot”), based on a recommendation of the Board’s Governance and Nominating Committee, elected Thierry Vanlancker, as a director of Cabot and appointed Mr. Vanlancker to the Board’s Audit Committee, both effective July 12, 2024.
Departed

Sue Rataj

director
CBT · CABOT CORP
Effective
2024-05-31
Filed
September 15, 2023, 7:59 PM ET
Sue Rataj, Non-Executive Chair of the Board, advised the Board that she would be retiring from the Board effective May 31, 2024.
Appointed

Michelle Williams

director
CBT · CABOT CORP
Effective
2023-09-13
Filed
September 15, 2023, 7:59 PM ET
elected Michelle Williams, Ph.D., as a director of Cabot and appointed Dr. Williams to the Board’s Audit Committee, both effective September 13, 2023.
Role change

Sue Rataj

Non-Executive Chair
CBT · CABOT CORP
Effective
2023-10-01
Filed
September 15, 2023, 7:59 PM ET
Ms. Rataj will step down as Non-Executive Chair effective October 1, 2023
Appointed

Raffiq Nathoo

Director
CBT · CABOT CORP
Effective
2022-05-12
Filed
May 12, 2022, 7:59 PM ET
On May 12, 2022, the Board of Directors of Cabot, based on a recommendation of the Board’s Governance and Nominating Committee, elected Raffiq Nathoo a director of Cabot and appointed Mr. Nathoo to the Board’s Audit Committee, each effective immediately.

Earnings & guidance

2026-Q2 EPS reported $2.64 filing →

Materiality & sentiment trend

Max materiality 0.85 · Median 0.70 · Most common event earnings

14 positive 3 negative 19 neutral

source · CBT on sec.gov