Transaction · 0001193125-26-410606

Masterson William F III

Masterson William F III, SVP, reported a transaction classified as grant at CABOT CORP involving 24.154200 shares for an estimated $1857.70. Reported holdings after the transaction were 553.895700 shares. A 10b5-1 reference was not detected in the stored filing text.

grantSEC transaction code ASVP
CBTCABOT CORP
Trade date
Sep 30, 2026
Filing date
Oct 01, 2026
View on SEC Insider profile
Estimated value$1.85kShares × reported price
Shares traded24$76.91 per share
Holdings after554Direct
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Not calculated for derivative securities.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

CBT price since this filing

Daily closing prices, with the filing date and available return windows
CBT · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +9.1%1w ago +3.2%1d ago +1.9%
Returns since7d -1.2%30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
grant
Code A
Identifier
0001193125-26-410606
Phantom Stock Units
Transaction date
Sep 30, 2026
Filed Oct 01, 2026, 07:49 PM · 1d delay
Shares
24.1542 sh
$76.91 per share
Estimated value
$1.85k
Computed from shares × price
Holdings after
553.8957 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Derivative Transaction Direct Ownership
Filing-only score

-6 points

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 1

    Filing reported within two business days of the transaction.
  • derivative_transaction-16 points

    is_derivative = true

    Derivative exercise rows are less discretionary than open-market purchases.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Senior Vice President

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    1 for 1

  2. 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.

Original filing · 0001193125-26-410606
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