CABOT CORP CBT
COM · Common Stock · CUSIP 127055101 · ISIN US1270551013
American specialty chemicals and performance materials company
- SectorMaterials
- IndustryMiscellaneous Chemical Products
- HeadquartersBoston, MA
- Founded1882
- Websitecabot-corp.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($17.0m this quarter). Holder counts are more reliable. Shares outstanding: 52.2m as of 2026-02-02, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $66.38. Options: 4 managers hold calls ($1.4m notional), 2 hold puts ($2.3m).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 304 |
| Q4 2022 | 316 |
| Q1 2023 | 305 |
| Q2 2023 | 287 |
| Q3 2023 | 297 |
| Q4 2023 | 334 |
| Q1 2024 | 360 |
| Q2 2024 | 388 |
| Q3 2024 | 408 |
| Q4 2024 | 426 |
| Q1 2025 | 407 |
| Q2 2025 | 381 |
| Q3 2025 | 379 |
| Q4 2025 | 365 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 169 | 151 |
| Q2 2024 | 184 | 158 |
| Q3 2024 | 201 | 183 |
| Q4 2024 | 179 | 188 |
| Q1 2025 | 177 | 201 |
| Q2 2025 | 169 | 212 |
| Q3 2025 | 166 | 193 |
| Q4 2025 | 151 | 215 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $2.4m | $2.6m | 1.07 |
| Q2 2025 | $4.3m | $1.1m | 0.26 |
| Q3 2025 | $5.4m | $2.6m | 0.48 |
| Q4 2025 | $1.4m | $2.3m | 1.72 |
Biggest buyers
| FULLER & THALER ASSET MANAGEMENT, INC. | Added | +2.5m |
| FMR LLC | Added | +744.7k |
| Lightrock Netherlands B.V. | Added | +317.9k |
| T. Rowe Price Investment Management, Inc. | Added | +227.9k |
| Pacer Advisors, Inc. | Added | +222.2k |
| AMERICAN CENTURY COMPANIES INC | Added | +214.5k |
| D. E. Shaw & Co., Inc. | Added | +172.8k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | +132.5k |
| MORGAN STANLEY | Added | +107.3k |
| DIMENSIONAL FUND ADVISORS LP | Added | +106.5k |
Biggest sellers
| Copeland Capital Management, LLC | Sold out | -524.3k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -423.5k |
| JPMORGAN CHASE & CO | Reduced | -382.3k |
| LOOMIS SAYLES & CO L P | Sold out | -163.4k |
| BANK OF AMERICA CORP /DE/ | Reduced | -153.7k |
| ENVESTNET ASSET MANAGEMENT INC | Reduced | -118.9k |
| ROYCE & ASSOCIATES LP | Sold out | -107.0k |
| Qube Research & Technologies Ltd | Reduced | -104.3k |
| NORTHERN TRUST CORP | Reduced | -94.6k |
| EARNEST PARTNERS LLC | Reduced | -83.8k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $941.2k14.2k shares |
| JANE STREET GROUP, LLC | Added | $298.3k4.5k shares |
| GROUP ONE TRADING LLC | Unchanged | $79.5k1.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $33.1k500 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $2.0m30.6k shares |
| SIMPLEX TRADING, LLC | Added | $298.3k4.5k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.1% |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC 13G · institution new · filed 2026-08-14 | 5.4% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
Fell to 5% or below in the last year: WELLINGTON MANAGEMENT GROUP LLP (4.7%, 2026-08-13), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 3 | $6.6m | — |
| Q2 2024 | 0 | — | 2 | $2.6m | — |
| Q3 2024 | 0 | — | 4 | $11.3m | — |
| Q4 2024 | 0 | — | 3 | $5.8m | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 1 | $9.1m | — |
| Q4 2025 | 0 | — | 0 | — | — |
None reported in Q4 2025.
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 6.6m $439.1m | Reduced -14.6k |
| VANGUARD GROUP INC 0.01% of their portfolio | 5.9m $393.0m | Reduced -29.7k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.53% of their portfolio | 4.7m $310.6m | Added +2.5m |
| WELLINGTON MANAGEMENT GROUP LLP 0.04% of their portfolio | 3.8m $248.7m | Reduced -423.5k |
| EARNEST PARTNERS LLC 0.88% of their portfolio | 3.1m $205.9m | Reduced -83.8k |
| STATE STREET CORP 0.00% of their portfolio | 2.0m $134.3m | Added +20.0k |
| AMERICAN CENTURY COMPANIES INC 0.07% of their portfolio | 2.0m $133.9m | Added +214.5k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.7m $110.2m | Added +106.5k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 1.5m $101.4m | Reduced -153.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.3m $88.2m | Reduced -9.0k |
| SEI INVESTMENTS CO 0.06% of their portfolio | 987.5k $65.4m | Reduced -21.4k |
| SNYDER CAPITAL MANAGEMENT L P 1.20% of their portfolio | 972.3k $64.4m | Reduced -31.6k |
| FMR LLC 0.00% of their portfolio | 965.4k $64.0m | Added +744.7k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 845.9k $56.1m | Reduced -47.8k |
| MORGAN STANLEY 0.00% of their portfolio | 786.3k $52.1m | Added +107.3k |
| T. Rowe Price Investment Management, Inc. 0.02% of their portfolio | 765.5k $50.7m | Added +227.9k |
| NORGES BANK 0.01% of their portfolio | 749.3k $49.7m | Not comparable |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 744.0k $49.3m | Added +35.3k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 636.0k $42.2m | Added +76.5k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 618.6k $41.0m | Reduced -94.6k |
| UBS Group AG 0.01% of their portfolio | 614.2k $40.7m | Added +20.7k |
| LSV ASSET MANAGEMENT 0.09% of their portfolio | 592.7k $39.3m | Reduced -9.9k |
| Fiduciary Trust Co 0.40% of their portfolio | 536.7k $35.6m | Reduced -59 |
| Invesco Ltd. 0.00% of their portfolio | 485.8k $32.2m | Reduced -22.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 476.7k $31.6m | Added +1.4k |
| Capital Research Global Investors 0.01% of their portfolio | 462.7k $30.7m | Unchanged |
| Lightrock Netherlands B.V. 7.05% of their portfolio | 457.8k $34.0m | Added +317.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 369.1k $24.5m | Reduced -46.4k |
| Man Group plc 0.04% of their portfolio | 307.2k $20.4m | Reduced -12.9k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 291.3k $19.3m | Added +172.8k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.03% of their portfolio | 290.7k $19.3m | Added +31.9k |
| LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA 0.19% of their portfolio | 286.0k $20.5m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 245.4k $16.3m | Added +12.0k |
| EASTERN BANK 0.27% of their portfolio | 235.3k $15.6m | Reduced -3.5k |
| Leeward Investments, LLC - MA 0.77% of their portfolio | 230.1k $15.3m | Added +31.0k |
| Pacer Advisors, Inc. 0.04% of their portfolio | 229.3k $15.2m | Added +222.2k |
| Fiera Capital Corp 0.04% of their portfolio | 213.3k $14.1m | Added +49.2k |
| BARCLAYS PLC 0.01% of their portfolio | 207.2k $13.7m | Reduced -60.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 202.7k $13.4m | Reduced -950 |
| NATIXIS ADVISORS, LLC 0.02% of their portfolio | 189.4k $12.6m | Reduced -11.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 168.5k $11.2m | Reduced -118.9k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 167.6k $11.1m | Reduced -13.7k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 166.6k $11.0m | Added +14.1k |
| Caisse de depot et placement du Quebec 0.02% of their portfolio | 165.5k $11.0m | Added +28.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 159.2k $10.6m | Reduced -382.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 158.0k $10.5m | Reduced -4.7k |
| HANCOCK WHITNEY CORP 0.18% of their portfolio | 149.9k $9.9m | Reduced -17.2k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 148.8k $9.9m | Added +6.4k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio | 132.5k $8.8m | New |
| CITIGROUP INC 0.01% of their portfolio | 130.2k $8.6m | Added +1.0k |
| Cambria Investment Management, L.P. 0.49% of their portfolio | 127.9k $8.5m | Added +24.9k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 121.3k $8.0m | Reduced -22.9k |
| Nuveen, LLC 0.00% of their portfolio | 119.9k $7.9m | Reduced -6.9k |
| Paradiem, LLC 1.88% of their portfolio | 118.9k $7.9m | Reduced -30.2k |
| California Public Employees Retirement System 0.00% of their portfolio | 105.6k $7.0m | Added +745 |
| Swiss National Bank 0.00% of their portfolio | 104.9k $7.0m | Added +800 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 99.6k $6.6m | Reduced -47 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 98.6k $6.5m | Reduced -2.4k |
| Allianz Asset Management GmbH 0.01% of their portfolio | 95.1k $6.3m | Added +47.2k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 94.0k $6.2m | Added +7.4k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 92.8k $6.1m | Reduced -161 |
| Legal & General Group Plc 0.00% of their portfolio | 84.9k $5.6m | Reduced -5.6k |
| DENALI ADVISORS LLC 0.61% of their portfolio | 83.4k $5.5m | New |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 81.1k $5.4m | New |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.16% of their portfolio | 79.1k $5.2m | Added +15.7k |
| Woodline Partners LP 0.02% of their portfolio | 78.7k $5.2m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 77.9k $5.2m | Added +34.3k |
| Creative Planning 0.00% of their portfolio | 73.0k $4.8m | Added +51.5k |
| CAPITAL FUND MANAGEMENT S.A. 0.04% of their portfolio | 68.9k $4.6m | Added +24.5k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 67.7k $4.5m | Reduced -104.3k |
| Aureus Asset Management, LLC 0.28% of their portfolio | 67.1k $4.4m | Unchanged |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 64.8k $4.3m | Reduced -1.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio | 64.7k $4.3m | Reduced -3.8k |
| Retirement Systems of Alabama 0.01% of their portfolio | 63.9k $4.2m | Reduced -474 |
| BROWN BROTHERS HARRIMAN & CO 0.02% of their portfolio | 56.2k $3.7m | Reduced -442 |
| MetLife Investment Management, LLC 0.02% of their portfolio | 54.6k $3.6m | Reduced -3.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 53.0k $3.5m | Reduced -2.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 50.5k $3.3m | Reduced -87 |
| Moran Wealth Management, LLC 0.10% of their portfolio | 48.7k $3.2m | Reduced -3.5k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 45.5k $3.0m | Reduced -1.7k |
| Gotham Asset Management, LLC 0.01% of their portfolio | 44.9k $3.0m | Added +29.9k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.04% of their portfolio | 43.2k $2.9m | Reduced -2.4k |
| COMERICA BANK 0.01% of their portfolio | 43.0k $2.9m | Added +10.7k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 43.0k $2.8m | Reduced -34.2k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 41.8k $2.8m | Added +1.4k |
| XTX Topco Ltd 0.07% of their portfolio | 41.4k $2.7m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 41.2k $2.7m | Added +10.6k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 37.1k $2.5m | Reduced -11.8k |
| Jefferies Financial Group Inc. 0.02% of their portfolio | 36.6k $2.4m | Added +26.3k |
| SG Americas Securities, LLC 0.00% of their portfolio | 36.3k $2.4m | Added +26.2k |
| Freestone Grove Partners LP 0.02% of their portfolio | 33.1k $2.2m | Added +28.8k |
| Bridgewater Associates, LP 0.01% of their portfolio | 32.5k $2.2m | Added +105 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 32.3k $2.1m | Reduced -3.1k |
| Cetera Investment Advisers 0.00% of their portfolio | 32.1k $2.1m | Reduced -9.5k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 30.8k $2.0m | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 30.7k $2.0m | Reduced -4.1k |
| Ballast Asset Management, LP 0.89% of their portfolio | 28.4k $1.9m | Reduced -987 |
| INTECH INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 26.6k $1.8m | Added +6.4k |
| HARBOR CAPITAL ADVISORS, INC. 0.13% of their portfolio | 25.9k $1.7m | Added +3.7k |
| Weiss Asset Management LP 0.02% of their portfolio | 25.8k $1.7m | Not comparable |