InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
CFODisclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Discover the detailed record of transactions filed by Williamson Stephen, Chief Financial Officer. Director active across 2 companies, notably Thermo Fisher Scientific INC.. Cumulatively, 31 disclosures have been published. Activity tracked since 23 August 2021. The latest transaction was filed on 15 April 2026 (Levée d'options). Regulator: SEC (Form 4). The full history is free.
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Declarations31 total
625 shares@ US$230.930.0002% mcap89.2% of flowCommon StockSEC:0000773840-26-000035:0
674.724 shares@ US$521.111.6% of flowCommon StockSEC:0000097745-26-000043:0
1,534 shares0Common StockSEC:0000097745-26-000037:0
433 shares0Common StockSEC:0000097745-25-000169:0
214.674 shares@ US$489.740.5% of flowCommon StockSEC:0000097745-25-000128:0
83 shares@ US$200.38100.0% of flowCommon StockSEC:0001628280-25-018218:0
584.069 shares@ US$528.961.4% of flowCommon StockSEC:0001127602-25-007938:0
1,533 shares0Common StockSEC:0001127602-25-006223:0
9,825 shares@ US$253.9911.5% of flowCommon StockSEC:0001127602-25-003227:0
214.674 shares@ US$613.140.6% of flowCommon StockSEC:0001127602-24-023163:0
406.141 shares@ US$606.121.0% of flowCommon StockSEC:0001127602-24-022989:0
1,112 shares0Common StockSEC:0001127602-24-016792:0
21,925 shares@ US$210.6820.3% of flowCommon StockSEC:0001127602-24-015442:0
771.359 shares@ US$572.031.9% of flowCommon StockSEC:0001127602-24-007597:0
408.302 shares@ US$564.711.0% of flowCommon StockSEC:0001127602-24-006832:0
1,966 shares0Common StockSEC:0001127602-24-006583:0
613.078 shares@ US$541.591.5% of flowCommon StockSEC:0001127602-23-023364:0
406.14 shares@ US$545.241.0% of flowCommon StockSEC:0001127602-23-023246:0
15,000 shares@ US$190.5912.3% of flowCommon StockSEC:0001127602-23-021841:0
835 shares@ US$541.762.0% of flowCommon StockSEC:0001127602-23-008392:0
1,516 shares0Common StockSEC:0001127602-23-007107:0
468 shares0Common StockSEC:0001127602-22-027542:0
563 shares@ US$585.471.6% of flowCommon StockSEC:0001127602-22-021702:0
311 shares@ US$572.970.8% of flowCommon StockSEC:0001127602-22-021549:0
15,000 shares@ US$157.6810.9% of flowCommon StockSEC:0001127602-22-021124:0
25 of 31 declarations
About Williamson Stephen
Williamson Stephen is Chief Financial Officer. He has 31 filings in total, and across the 31 sampled filings the amounts are all linked to Thermo Fisher Scientific INC., with the transaction nature listed as tax withholding, from 2021-08-24 to 2026-04-16.
