Outgoing CEO Keohane Files to Sell Another $11.5M in Cabot Shares
CBT sits 45% above its 52-week low of $58.33 on light trading volume (0.3× avg).
Summary
Outgoing CEO Sean Keohane filed to sell $11.47 million in Cabot shares acquired via option exercise, adding to his recent $8.18 million in sales as he prepares to retire on September 30.
Key Events · Ownership and Investor Activity · CBT
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CEO Files to Sell $11.47M in Shares
Sean Keohane filed a Form 144 to sell 134,895 shares (~$11.47M) acquired via option exercise on August 28, 2026.
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Total 3-Month Selling Reaches $19.6M
Combined with his $7.94M sale on August 7 and $237,604 sale on August 24, Keohane's disclosed sales total approximately $19.6 million.
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Retirement Transition Underway
Keohane retires as CEO on September 30, 2026, succeeded by CFO Erica McLaughlin; the sales are part of his planned exit.
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Follows $350M Debt Offering
The filing comes days after Cabot completed a $350 million senior notes offering due 2029, adding to near-term capital markets activity.
Analysis · CBT · Industrial Applications And Services
Outgoing CEO Sean Keohane has filed a new Form 144 to sell 134,895 shares worth approximately $11.47 million, acquired via option exercise on August 28, 2026. This follows his $7.94 million sale on August 7 and a smaller $237,604 sale on August 24, bringing his total disclosed selling activity over the past three months to roughly $19.6 million. The sale is part of his planned exit ahead of his September 30 retirement, but the size and timing — just days after the company completed a $350 million debt offering — add to the overhang on the stock.
How filings like this one have moved
In the 30 days to Sep 14, 2026, 29.9% of the 1591 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.24%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, CBT was trading at $84.43 on NYSE in the Industrial Applications And Services sector, with a market capitalization of approximately $4.4B. The 52-week trading range was $58.33 to $94.53. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.