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  4. [144] CABOT CORP SEC Filing

After $7.9M stock sale, Cabot (NYSE: CBT) insider plans another trade

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
144

Rhea-AI Filing Summary

CABOT CORP (CBT) is the issuer for a planned insider sale reported under Rule 144 for the account of Sean D. Keohane. The notice covers 2,779 shares of common stock, expected to be sold through Fidelity Brokerage Services LLC on 08/24/2026 on the NYSE following a stock option exercise paid in cash.

The filing also reports that during the prior three months, Sean D. Keohane sold 91,923 shares of CABOT CORP common stock on 08/07/2026 for an aggregate sale price of $7,942,634.39.

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Shares proposed for sale 2,779 shares of common stock Planned Rule 144 sale on or about 08/24/2026 via Fidelity on NYSE
Acquisition method Stock Option Exercise Shares to be sold on 08/24/2026 acquired on 08/24/2026 via option exercise for cash
Shares sold in prior 3 months 91,923 shares Sale of CABOT CORP common stock on 08/07/2026
Aggregate sale price (prior sale) $7,942,634.39 Aggregate sale price for 91,923 shares sold on 08/07/2026
Planned sale date 08/24/2026 Expected date of sale for the 2,779 shares under Rule 144
Rule 144 regulatory
"See the definition of "person" in paragraph (a) of Rule 144."
Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.
Stock Option Exercise financial
"Common | 08/24/2026 | Stock Option Exercise | Issuer"
A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.
aggregate sale price financial
"| 08/07/2026 | 91923 | 7942634.39"
attorney-in-fact regulatory
"as attorney-in-fact for Sean D. Keohane"
An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

What insider transaction in CABOT CORP (CBT) is disclosed in this Form 144?
The Form 144 discloses a proposed sale by Sean D. Keohane of 2,779 shares of CABOT CORP common stock on or about 08/24/2026 on the NYSE, following acquisition of the shares through a stock option exercise paid in cash.

How many CABOT CORP (CBT) shares has Sean D. Keohane sold recently?
The filing states that on 08/07/2026, Sean D. Keohane sold 91,923 shares of CABOT CORP common stock, with an aggregate sale price of $7,942,634.39, during the three months preceding the new proposed sale.

What is the size of the new CABOT CORP (CBT) sale proposed under Rule 144?
The proposed sale under Rule 144 covers 2,779 shares of CABOT CORP common stock. These shares are to be sold through Fidelity Brokerage Services LLC, with the expected sale date listed as 08/24/2026 on the NYSE.

How were the CABOT CORP (CBT) shares to be sold on 08/24/2026 acquired?
The 2,779 shares of CABOT CORP common stock to be sold on or about 08/24/2026 were acquired on that same date through a stock option exercise, with the form noting that the consideration for the acquisition was cash.

Who is filing the CABOT CORP (CBT) Form 144 and who signs it?
The securities are to be sold for the account of Sean D. Keohane. The Form 144 is signed on 08/24/2026 by /s/ Gary Redman, acting as a duly authorized representative of Fidelity Brokerage Services LLC and attorney-in-fact for Sean D. Keohane.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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144: Filer Information

144: Issuer Information

144: Securities Information



Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold


* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.



Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

144: Remarks and Signature

Source: View Original Filing on SEC EDGAR