CBT at a glance
CABOT CORP (CBT, SEC CIK 16040) filed its latest 10-K annual report on November 24, 2025, a 10-Q quarterly report on August 4, 2026, an 8-K current report on September 15, 2026 and Form 4 insider filings as recently as October 1, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended September 30, 2025 (FY2025), CABOT CORP (CBT) reported revenue of $3.7 billion (down 7.0% from FY2024) and net income of $331.0 million. Diluted EPS was $6.02.
- As of June 30, 2026, 32 institutional investment managers tracked by SignalX reported holding CABOT CORP (CBT) shares worth $2.4 billion in 13F-HR filings.
- In the last 90 days, CBT insiders reported 0 open-market purchases ($0) and 3 open-market sales ($19.6M) on Form 4, a net sale of $19.6M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $3.7B
- −7.0% vs prior year
- Insiders · 90 days
- 0 buys · 3 sells
- Net −$19.6M
- 13F holders
- 32 funds
- $2.4B · −1 vs prior quarter
- Latest 8-K
- Sep 15, 2026
- Item 5.02 · Item 7.01
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Sep 30, 2025
Business Overview
- Core business model: Global specialty chemicals and performance materials focused on engineered fine particles for reinforcement and performance applications
- New product platform launched: EVOLVE® Sustainable Solutions targeting renewable, recovered, and reduced GHG emission products in Reinforcement Materials
- Strategic emphasis on growth areas: E2C® composites for superior tire performance and conductive additives/battery materials in Performance Chemicals
- Capacity expansion: Added ~80,000 metric tons reinforcing carbons capacity at Cilegon, Indonesia plant in fiscal 2025
- Geographic significance: China operations represent ~25% of revenues and 21% of property, plant & equipment as of September 30, 2025
Risk Factors
- Environmental compliance risk due to stricter global emission limits on nitrogen oxides, sulfur dioxide, and particulates, requiring costly capital improvements
- Geopolitical exposure to tire production shifts from Americas/Europe to Asia reducing demand for Reinforcement Materials in higher-margin regions
- Contractor dispute and arbitration demand after terminating Ville Platte plant pollution control equipment contract due to poor contractor performance
- Competitive threat from specialty chemical companies with environmentally superior substitute products impacting demand for Cabot's products
- Pricing pressure and lower margins from regional overcapacity, especially excess tire exports from China and India affecting supply dynamics
Management Discussion & Analysis
- Revenue $3.713B, down $281M YoY; Reinforcement Materials sales -$269M to $2.341B, Performance Chemicals flat at $1.25B
- Operating margin 18.9% (Total segment EBIT $702M on $3.713B) vs 17.5% (Total segment EBIT $701M on $3.994B) with EBIT Reinforcement Materials $508M (-$29M) and Performance Chemicals $194M (+$30M)
- Best performing segment by EBIT growth: Performance Chemicals +$30M to $194M; worst: Reinforcement Materials EBIT down $29M to $508M due to lower volumes and pricing
- Cash flow from operations $665M vs $692M; Capex $274M vs $241M; Stock buybacks $168M; Dividends to shareholders $96M and to noncontrolling interests $57M
- FY2026 outlook expects Reinforcement Materials EBIT decline on weaker tire customer agreements; Performance Chemicals EBIT growth from battery materials and alternative energy; Operating tax rate guidance 27%-29%
AI summary of the CBT 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended Jun 30, 2026
Management Discussion & Analysis
- Q3 revenue $982M, up $59M YoY from $923M
- Gross profit $184M vs $244M YoY; gross margin 18.7% vs 26.4%
- Performance Chemicals best segment: sales $351M, EBIT $68M vs $57M YoY
- Reinforcement Materials weakest segment: EBIT $97M vs $128M YoY
- Cash $250M; operating cash flow $278M vs $446M YoY, with $152M capital expenditures
- Q4 outlook: EBIT declines expected in both segments from lower volumes and normalized gross profit per ton
AI summary of the CBT 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 5.02: Departure/Appointment of Directors or Principal Officers
- Steven J. Delahunt becomes interim CFO effective October 1, 2026, replacing Erica McLaughlin
- McLaughlin’s transition to President and CEO creates a concurrent CFO succession need
Item EX-99.1: Item EX-99.1
- Steve Delahunt becomes interim CFO October 1, 2026, while Cabot searches for a permanent finance chief
- Erica McLaughlin transitions from CFO to CEO October 1, 2026, succeeding Sean Keohane
Item 7.01: Regulation FD Disclosure
- Management transition announced September 15, 2026, signaling a leadership change investors should monitor
- Exhibit 99.1 contains the transition details, including affected executives and succession implications
Item 8.01: Other Events
- $350 million senior notes issued August 21, 2026, carrying 4.950% interest and maturing in 2029
- Proceeds earmarked to redeem $250 million of 3.40% notes due September 2026
Item EX-99.1: Item EX-99.1
- Cabot issued $350 million of 4.950% notes due 2029, adding fixed-rate debt obligations
- Estimated issuance expenses total $1.08 million, excluding underwriting discounts and commissions
Item 8.01: Other Events
- $350 million debt offering at 4.950% interest, with notes maturing in 2029
- Expected closing August 21, 2026, subject to customary conditions
AI summaries of CBT 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for CBT
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Masterson William F III | A | Sep 30, 2026 | 24.154 | $76.91 |
| Nathoo Raffiq | A | Sep 30, 2026 | 360.811 | $76.91 |
| Keohane Sean D | A | Sep 30, 2026 | 346.259 | $76.91 |
| Kalita Karen A | A | Sep 30, 2026 | 44.88 | $76.91 |
| McLaughlin Erica | A | Sep 30, 2026 | 93.545 | $76.91 |
| Nathoo Raffiq | A | Sep 11, 2026 | 11.136 | $79.68 |
| DELGROSSO DOUGLAS G | A | Sep 11, 2026 | 30.628 | $79.68 |
| Kalita Karen A | A | Sep 11, 2026 | 31.487 | $79.68 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $4.0B | $3.7B |
| Gross Profit | - | $960.0M | $940.0M |
| Operating Income | - | $614.0M | $621.0M |
| Net Income | - | $380.0M | $331.0M |
| Gross Margin | - | 24.0% | 25.3% |
| Op. Margin | - | 15.4% | 16.7% |
| Net Margin | - | 9.5% | 8.9% |
| Balance Sheet | |||
| Total Assets | $3.6B | $3.7B | $3.8B |
| Equity | $1.3B | $1.4B | $1.6B |
| ROE | - | 26.7% | 21.4% |
| Per Share | |||
| EPS | - | $6.72 | $6.02 |
| Cash Flow | |||
| Operating CF | - | $692.0M | $665.0M |
| CapEx | - | $241.0M | $274.0M |
Source: XBRL data in CABOT CORP (CBT)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate CBT share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 32 | $2.37B |
| Q1 2026 | 33 | $1.86B |
| Q4 2025 | 32 | $1.64B |
| Q3 2025 | 31 | $1.85B |
| Q2 2025 | 30 | $1.80B |
| Q1 2025 | 29 | $1.47B |
| Q4 2024 | 25 | $1.46B |
| Q3 2024 | 22 | $823.2M |
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Source: 13F-HR filings on SEC EDGAR (aggregated from 234 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
CBT filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 4 | Oct 1, 2026 | - | - | - |
| 4 | Oct 1, 2026 | - | - | - |
| 4 | Oct 1, 2026 | - | - | - |
| 4 | Oct 1, 2026 | - | - | - |
| 4 | Oct 1, 2026 | - | - | - |
| 8-K | Sep 15, 2026 | - | Analysis | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Aug 31, 2026 | - | - | - |
| 4 | Aug 26, 2026 | - | - | - |
| 8-K | Aug 21, 2026 | - | Analysis | - |
| SC 13G | Aug 14, 2026 | - | - | |
| 8-K | Aug 14, 2026 | - | Analysis | - |
| 4 | Aug 11, 2026 | - | - | - |
| 10-Q | Aug 4, 2026 | Jun 30, 2026 | Analysis | |
| 8-K | Aug 3, 2026 | - | Analysis | - |
| 8-K | Jul 30, 2026 | - | Analysis | - |
| 4 | Jul 2, 2026 | - | - | - |
| 4 | Jul 2, 2026 | - | - | - |
| 4 | Jun 16, 2026 | - | - | - |
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CBT SEC filings: frequently asked questions
Are CBT insiders buying or selling?
In the last 90 days, CABOT CORP (CBT) officers, directors and 10% owners reported no open-market purchases and 3 open-market sales worth $19.6 million by 1 insider on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold CBT stock?
As of June 30, 2026, the largest CABOT CORP (CBT) holders among the 13F filers tracked by SignalX were BlackRock ($633.3 million), Vanguard Portfolio Management LLC ($279.4 million), Vanguard Capital Management LLC ($210.8 million), State Street Corp ($196.7 million), Dimensional Fund Advisors ($174.9 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was CBT's revenue in fiscal year 2025?
For the fiscal year ended September 30, 2025 (FY2025), CABOT CORP (CBT) reported revenue of $3.7 billion (down 7.0% from FY2024) and net income of $331.0 million. Diluted EPS was $6.02. The figures come from the XBRL data in the 10-K.
What are the main risks in CBT's latest 10-K?
In the 10-K filed November 24, 2025, CABOT CORP (CBT) flagged: Environmental compliance risk due to stricter global emission limits on nitrogen oxides, sulfur dioxide, and particulates, requiring costly capital improvements. Geopolitical exposure to tire production shifts from Americas/Europe to Asia reducing demand for Reinforcement Materials in higher-margin regions. (AI summary of the Risk Factors section.)
What did CBT report in its latest 8-K?
CABOT CORP (CBT) filed an 8-K on September 15, 2026 reporting Item 5.02 (Departure/Appointment of Directors or Principal Officers) and Item 7.01 (Regulation FD Disclosure). Steven J. Delahunt becomes interim CFO effective October 1, 2026, replacing Erica McLaughlin.
What are the latest CBT SEC filings?
CABOT CORP (CBT) filed its latest 10-K annual report on November 24, 2025, a 10-Q quarterly report on August 4, 2026, an 8-K current report on September 15, 2026 and a Form 4 insider filing on October 1, 2026.
What is CBT's SEC CIK number?
CABOT CORP (CBT)'s SEC Central Index Key (CIK) is 16040. EDGAR lists every CBT filing under that number.
Ask anything about CBT
The research agent reads CBT's filings, financials, insider trades and 13F holders, then answers with sources.