Cabot Corporation
A global specialty chemicals maker headquartered in Boston, Cabot produces carbon black — the fine black powder that strengthens tires and industrial rubber goods — along with fumed metal oxides, battery materials, and inkjet colorants for industries from automotive to electronics. Founded in 1882 by Harvard-trained chemist Godfrey Lowell Cabot, the company was built around a process he patented for turning natural gas by-product into valuable carbon black. Today its EVOLVE® platform also makes sustainable carbons recycled from end-of-life tires, turning old rubber into new raw material.
Bought 1.01M
Bought 109.0K
Bought 288.7K
Bought 168.5K
Bought 649.0K
Sold 3.80M
Granted 196.0K · Sold 94.4K
Bought 15.0K
Bought 39.2K
Bought 208.3K
Granted 1.01M · Sold 401.6K
Granted 1.51M · Bought 18.0K · Sold 1.14M
Sold 415.6K
Granted 153.5K · Sold 140.0K
Granted 420.3K · Sold 343.8K
Granted 152.3K · Sold 98.5K
Granted 199.0K · Sold 96.0K
Granted 307.2K · Sold 243.1K
Granted 83.3K
Granted 62.5K · Sold 45.0K
Granted 268.9K · Sold 214.0K
Granted 35.9K · Sold 14.0K
Granted 30.4K
Granted 80.4K · Sold 60.0K
Granted 33.0K
Granted 61.7K · Sold 22.0K
Granted 112.3K · Sold 51.7K
Granted 9.2K
Granted 43.3K · Sold 4.7K
Granted 87.3K · Sold 69.3K
Granted 84.8K · Sold 52.5K
Granted 20.1K
Granted 23.9K · Sold 7.5K
Granted 12.9K
Granted 21.9K · Bought 5.0K · Sold 5.0K
Granted 27.7K
Granted 27.5K
Granted 18.6K · Sold 5.2K
Granted 20.3K · Bought 2.0K
Granted 22.1K
Granted 21.9K
Granted 21.1K · Sold 833
Granted 19.6K
Granted 18.6K
Granted 17.2K
Granted 25.9K · Sold 57.8K
Granted 15.1K
Granted 3.3K
Granted 15.9K · Sold 2.3K
Granted 9.4K
Granted 9.3K
Granted 3.5K
Granted 6.8K
Granted 3.1K · Sold 4.8K
Granted 4.9K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Elizabeth R. & William J. Patterson Foundation +6 co-filers10% owner · 925 transactions | — | 10.05Mas of Jan 2008 | — | 1.01M | — |
| Oberndorf William E +1 co-filer10% owner · 3 transactions | — | 9.62Mas of Apr 2007 | — | 109.0K | — |
| Oberndorf William E +5 co-filers10% owner · 93 transactions | — | 9.40Mas of Aug 2006 | — | 288.7K | — |
| Oberndorf William E +7 co-filers10% owner · 31 transactions | — | 9.16Mas of Jul 2006 | — | 168.5K | — |
| Spo Advisory Corp +1 co-filer10% owner · 15 transactions | — | 8.30Mas of Jun 2006 | — | 649.0K | — |
| Elizabeth R. & William J. Patterson Foundation +7 co-filers10% owner · 1 transaction | — | 5.91Mas of May 2009 | — | — | 3.80M |
| Burnes Kennett FChairman, CEO and President, Director · 43 transactions | — | 856.2Kas of Aug 2007 | 196.0K | — | 94.4K |
| Oberndorf William E +4 co-filers10% owner · 15 transactions | — | 437.4Kas of Feb 2006 | — | 15.0K | — |
| Oberndorf Family Partners +3 co-filers10% owner · 2 transactions | — | 433.6Kas of Feb 2006 | — | 39.2K | — |
| Oberndorf Family Partners +4 co-filers10% owner · 37 transactions | — | 391.9Kas of Jan 2006 | — | 208.3K | — |
| Keohane Sean DPresident and CEO, Director · 94 transactions | — | 303.1K | 1.01M | — | 401.6K |
| Prevost Patrick M.Director · 106 transactions | — | 220.2Kas of Jan 2020 | 1.51M | 18.0K | 1.14M |
| McDermott Edward H +6 co-filers10% owner · 5 transactions | — | 197.9Kas of Mar 2009 | — | — | 415.6K |
| Brady William JExecutive Vice President · 31 transactions | — | 120.0Kas of May 2009 | 153.5K | — | 140.0K |
| Cordeiro Eduardo EExecutive Vice President, CFO · 88 transactions | — | 86.1Kas of Mar 2018 | 420.3K | — | 343.8K |
| Zhu Jeff JiExecutive Vice President · 38 transactions | — | 85.3K | 152.3K | — | 98.5K |
| McLaughlin EricaExecutive Vice President, CFO · 63 transactions | — | 80.0K | 199.0K | — | 96.0K |
| Berube Brian ASVP, General Counsel · 99 transactions | — | 67.2Kas of Mar 2019 | 307.2K | — | 243.1K |
| Mason Jonathan PExecutive Vice President, CFO · 6 transactions | — | 67.1Kas of Feb 2009 | 83.3K | — | — |
| Blevi DirkExecutive Vice President, Director · 19 transactions | — | 65.4Kas of Jul 2007 | 62.5K | — | 45.0K |
| Kalkstein HobartExecutive Vice President · 79 transactions | — | 60.3Kas of Nov 2024 | 268.9K | — | 214.0K |
| Paintal RavijitVice President · 13 transactions | — | 59.7Kas of Aug 2007 | 35.9K | — | 14.0K |
| Obrien John FDirector · 15 transactions | — | 54.0Kas of Jan 2020 | 30.4K | — | — |
| Cross Nicholas S.Executive Vice President · 24 transactions | — | 48.6Kas of Aug 2018 | 80.4K | — | 60.0K |
| Wrighton Mark SDirector · 16 transactions | — | 47.6Kas of Jan 2021 | 33.0K | — | — |
| Miller David AExecutive Vice President · 18 transactions | — | 47.2Kas of Nov 2014 | 61.7K | — | 22.0K |
| Kalita Karen ASVP and General Counsel · 38 transactions | — | 46.4K | 112.3K | — | 51.7K |
| Doubman John RSenior Vice President · 6 transactions | — | 42.6Kas of Mar 2019 | 9.2K | — | — |
| Enriquez Cabot JuanDirector · 23 transactions | — | 41.5K | 43.3K | — | 4.7K |
| von Gottberg FriedrichSenior Vice President · 24 transactions | — | 38.7Kas of Nov 2018 | 87.3K | — | 69.3K |
| Kelly James PatrickVice President and Controller · 71 transactions | — | 35.7Kas of Nov 2019 | 84.8K | — | 52.5K |
| Clarkeson John SDirector · 10 transactions | — | 33.1Kas of Jan 2015 | 20.1K | — | — |
| Thomas Lydia WDirector · 14 transactions | — | 32.8Kas of Jan 2017 | 23.9K | — | 7.5K |
| Goldstein Arthur LDirector · 6 transactions | — | 27.9Kas of Jan 2011 | 12.9K | — | — |
| Schmitz Ronaldo HDirector · 13 transactions | — | 27.9Kas of Jan 2016 | 21.9K | 5.0K | 5.0K |
| Kirby William C.Director · 15 transactions | — | 27.7K | 27.7K | — | — |
| Rataj Sue H.Director · 14 transactions | — | 27.5Kas of Jan 2024 | 27.5K | — | — |
| Kaji Gautam SDirector · 15 transactions | — | 23.6Kas of Jan 2014 | 18.6K | — | 5.2K |
| Morrow Michael MDirector · 11 transactions | — | 22.3K | 20.3K | 2.0K | — |
| Wolfgruber Matthais L.Director · 12 transactions | — | 22.1Kas of Jan 2025 | 22.1K | — | — |
| McCance Henry FDirector · 11 transactions | — | 21.9Kas of Jan 2016 | 21.9K | — | — |
| McGillicuddy John KDirector · 13 transactions | — | 20.3Kas of Jan 2019 | 21.1K | — | 833 |
| Arnold Cynthia ADirector · 9 transactions | — | 19.6K | 19.6K | — | — |
| Wilson Frank AndersDirector · 9 transactions | — | 18.6K | 18.6K | — | — |
| Yan Christine YDirector · 8 transactions | — | 17.2K | 17.2K | — | — |
| Macleod RoderickDirector · 14 transactions | — | 16.2Kas of Jan 2018 | 25.9K | — | 57.8K |
| Delgrosso Douglas GDirector · 7 transactions | — | 15.1K | 15.1K | — | — |
| Wood Matthew ForsterSenior Vice President · 4 transactions | — | 13.5K | 3.3K | — | — |
| Dumont Lisa MVP, Controller & CAO · 27 transactions | — | 12.6K | 15.9K | — | 2.3K |
| Zhang ShengmanDirector · 5 transactions | — | 9.4Kas of Jan 2010 | 9.4K | — | — |
| Nathoo RaffiqDirector · 5 transactions | — | 9.3K | 9.3K | — | — |
| Masterson William F IIISenior Vice President · 1 transaction | — | 7.2K | 3.5K | — | — |
| Williams Michelle ElizabethDirector · 4 transactions | — | 6.8K | 6.8K | — | — |
| McArthur John HDirector · 8 transactions | — | 4.9Kas of Jan 2007 | 3.1K | — | 4.8K |
| Vanlancker Thierry FJDirector · 3 transactions | — | 4.9K | 4.9K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -4.87M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.