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Keohane Sean D

Disclosed activity across 2 companies

Tapewire entity
18591
SEC CIK
0001435737

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CABOT CORPCBT · Entity 4032Director · President and CEOSeptember 30, 2026October 01, 2026
Chemours CoCC · Entity 4420DirectorMay 06, 2026May 08, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CABOT CORP

Report date September 30, 2026 · Filed October 01, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Phantom Stock UnitsSEC Table II · derivative / convertible securityDirect48,460.8725 Reported balance After 2026-09-30 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-09-30 · Grant · Acquired 346.259 · Balance 48,460.8725

F1: 1 for 1

F2: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.

Filing footnotes · ownership attribution and instrument terms

F1: 1 for 1

F2: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.

Chemours Co

Report date May 06, 2026 · Filed May 08, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect72,555.1777 Reported balance After 2026-05-06 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-05-06 · Grant · Acquired 7,182 · Balance 72,555.1777

F1: Represents stock units that will convert one-for-one to Chemours common stock upon separation from service on the Board.

F2: Includes deferred stock units and dividend equivalent units.

Filing footnotes · ownership attribution and instrument terms

F1: Represents stock units that will convert one-for-one to Chemours common stock upon separation from service on the Board.

F2: Includes deferred stock units and dividend equivalent units.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
November 14, 2017 Filed Nov 15, 2017 22:28 UTC CABOT CORP CBT · Entity 4032 Tax withholdingCommon Stock 1,692 $60.24 $101,926.08
Disclosure

SEC source: 0001209191-17-060961 · doc4.xml · nonDerivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,542

Read SEC document
November 10, 2017 Filed Nov 14, 2017 21:49 UTC CABOT CORP CBT · Entity 4032 GrantEmployee Stock Option (Right to Buy) · Derivative 91,923 $0.00 Strike: $62.24 $0.00
Disclosure

SEC source: 0001209191-17-060635 · doc4.xml · derivative · entry 3

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,923

Underlying: Common Stock · 91,923 shares

Expires 2027-11-09

F2 · derivative.exercise_date: The option vests over a three year period as follows: 30% on November 10, 2018, 30% on November 10, 2019 and 40% on November 10, 2020.

Read SEC document
November 10, 2017 Filed Nov 14, 2017 21:49 UTC CABOT CORP CBT · Entity 4032 GrantCommon Stock 19,280 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-060635 · doc4.xml · nonDerivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 93,234

Read SEC document
September 30, 2017 Filed Oct 3, 2017 19:37 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 434.2432 $55.80 $24,230.77
Disclosure

SEC source: 0001209191-17-054955 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,579.4407

Underlying: Common Stock · 434.2432 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service in accordance with the provisions of the plan.

F2 · derivative.expiration_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service in accordance with the provisions of the plan.

Read SEC document
September 08, 2017 Filed Sep 12, 2017 17:29 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 84.5089 $52.41 $4,429.11
Disclosure

SEC source: 0001209191-17-052361 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,145.1975

Underlying: Common Stock · 84.5089 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

F2 · derivative.expiration_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

Read SEC document
June 30, 2017 Filed Jul 5, 2017 22:31 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock Units · Derivative 335.0897 $53.43 $17,903.84
Disclosure

SEC source: 0001209191-17-043680 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,060.6886

Underlying: Common Stock · 335.0897 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.

F2 · derivative.expiration_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.

Read SEC document
June 09, 2017 Filed Jun 12, 2017 20:08 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 80.2965 $53.53 $4,298.27
Disclosure

SEC source: 0001209191-17-039133 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,725.599

Underlying: Common Stock · 80.2965 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

F2 · derivative.expiration_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

Read SEC document
March 10, 2017 Filed Mar 14, 2017 21:08 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 69.4771 $58.62 $4,072.75
Disclosure

SEC source: 0001209191-17-020576 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,645.3025

Underlying: Common Stock · 69.4771 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan, and will be settled upon the reporting person's retirement or other termination of employment.

F2 · derivative.expiration_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan, and will be settled upon the reporting person's retirement or other termination of employment.

Read SEC document
December 31, 2016 Filed Jan 4, 2017 22:04 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock Units · Derivative 1,792.9438 $50.54 $90,615.38
Disclosure

SEC source: 0001209191-17-001137 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,575.8254

Underlying: Common Stock · 1,792.9438 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.

F2 · derivative.expiration_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.

Read SEC document
December 09, 2016 Filed Dec 13, 2016 21:47 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 65.4362 $53.72 $3,515.23
Disclosure

SEC source: 0001209191-16-154938 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,782.8816

Underlying: Common Stock · 65.4362 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

F2 · derivative.expiration_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

Read SEC document
November 22, 2016 Filed Nov 23, 2016 17:49 UTC CABOT CORP CBT · Entity 4032 Tax withholdingCommon Stock 1,076 $52.29 $56,264.04
Disclosure

SEC source: 0001209191-16-151897 · doc4.xml · nonDerivative · entry 2

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,954

Read SEC document
November 21, 2016 Filed Nov 23, 2016 17:49 UTC CABOT CORP CBT · Entity 4032 GrantCommon Stock 7,580 $0.00 $0.00
Disclosure

SEC source: 0001209191-16-151897 · doc4.xml · nonDerivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,030

F1 · shares: Includes performance based units earned on the basis of the Corporation's performance in fiscal year 2016 that remain subject to time-based vesting.

Read SEC document
November 11, 2016 Filed Nov 15, 2016 21:37 UTC CABOT CORP CBT · Entity 4032 GrantEmployee Stock Option (Right to Buy) · Derivative 87,981 $0.00 Strike: $50.46 $0.00
Disclosure

SEC source: 0001209191-16-150196 · doc4.xml · derivative · entry 3

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,981

Underlying: Common Stock · 87,981 shares

Expires 2026-11-10

F2 · derivative.exercise_date: The option vests over a three year period as follows: 30% on November 11, 2017, 30% on November 11, 2018 and 40% on November 11, 2019.

Read SEC document
November 11, 2016 Filed Nov 15, 2016 21:37 UTC CABOT CORP CBT · Entity 4032 GrantCommon Stock 19,024 $0.00 $0.00
Disclosure

SEC source: 0001209191-16-150196 · doc4.xml · nonDerivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,450

Read SEC document
November 08, 2016 Filed Nov 10, 2016 20:45 UTC CABOT CORP CBT · Entity 4032 Tax withholdingCommon Stock 2,223 $48.85 $108,593.55
Disclosure

SEC source: 0001209191-16-149305 · doc4.xml · nonDerivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,426

Read SEC document
September 30, 2016 Filed Oct 4, 2016 20:29 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 436.6461 $52.41 $22,884.62
Disclosure

SEC source: 0001209191-16-144257 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,717.4454

Underlying: Common Stock · 436.6461 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service in accordance with the provisions of the plan.

F2 · derivative.expiration_date: The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service in accordance with the provisions of the plan.

Read SEC document
September 09, 2016 Filed Sep 13, 2016 19:35 UTC CABOT CORP CBT · Entity 4032 GrantPhantom Stock · Derivative 68.2032 $49.32 $3,363.78
Disclosure

SEC source: 0001209191-16-141119 · doc4.xml · derivative · entry 1

Keohane Sean D · CIK 0001435737 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,280.7994

Underlying: Common Stock · 68.2032 shares

Expires not disclosed

F1 · derivative.exercise_price: 1 for 1

F2 · derivative.exercise_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

F2 · derivative.expiration_date: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.