Reporting Owner Activity for Stephen Williamson

Form 3/4/5 issuer positions and transaction evidence for this reporting owner.

Issuer positions

3

Largest position

THERMO FISHER SCIENTIFIC INC.

Disclosed value

$26.42M

Recent activity

Available

Identity 1 fact
Location
Waltham, MA
SEC ownership signals 1 fact
Owner position summary

Reported owner value

$26,419,146

Estimated from parsed Forms 3/4/5 when the filing discloses holding values.

Issuer count

3

Distinct issuers tied to this reporting owner in parsed SEC filings.

Largest reported position

THERMO FISHER SCIENTIFIC INC. (TMO)

About $24.78M reported in parsed owner filings.

Latest owner filing

26 May 2026

Most recent owner-level filing date in the parsed SEC record.

Reported values are estimates from parsed SEC Forms 3/4/5. Verify the source filing before making decisions.

SEC filing record 1 fact
SEC signature
Richard Kent for Stephen Williamson
SEC evidence 1 fact
Source evidence
Open source filing history

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Reported issuer positions for Stephen Williamson

Insider Transactions Reported by Stephen Williamson:

Sym Company Class Transaction % Reported value Reported price Shares Shares after Date Ownership
* indicates a reported price that failed the local validity check.
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