THERMO FISHER SCIENTIFIC INC. (TMO) Insider Trading -- Recent Executive & Director Transactions

21 insiders reported 340 Form 4 transactions for THERMO FISHER SCIENTIFIC INC. (TMO) over the past 18 months (most recent 2026-08-20). Recent activity: Britt Lisa P. (Sr. VP and Chief HR Officer) Sell 11,440 shares, Britt Lisa P. (Sr. VP and Chief HR Officer) Buy 11,440 shares, Shafer Michael D (Executive Vice President) Buy 11,200 shares, Shafer Michael D (Executive Vice President) Sell 11,200 shares, Shafer Michael D (Executive Vice President) Buy 14,300 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-08-20Britt Lisa P.Sr. VP and Chief HR OfficerSell11,440$7.0M
2026-08-20Britt Lisa P.Sr. VP and Chief HR OfficerBuy11,440$4.8M
2026-08-13Shafer Michael DExecutive Vice PresidentBuy11,200$3.5M
2026-08-13Shafer Michael DExecutive Vice PresidentSell11,200$6.7M
2026-08-13Shafer Michael DExecutive Vice PresidentBuy14,300$6.0M
2026-08-13Shafer Michael DExecutive Vice PresidentSell14,300$8.6M
2026-08-10CASPER MARC NChairman & CEOSell4$2,323
2026-08-10Holmes Joseph R.VP & Chief Accounting OfficerBuy420$130,045
2026-08-10Holmes Joseph R.VP & Chief Accounting OfficerSell420$245,620
2026-08-10CASPER MARC NChairman & CEOSell6$3,464
2026-08-10CASPER MARC NChairman & CEOSell4$2,317
2026-08-10CASPER MARC NChairman & CEOSell2$1,159
2026-08-10CASPER MARC NChairman & CEOBuy275$85,148
2026-08-10CASPER MARC NChairman & CEOSell94$54,273
2026-08-10CASPER MARC NChairman & CEOSell5$2,909
2026-08-10CASPER MARC NChairman & CEOSell2$1,164
2026-08-10CASPER MARC NChairman & CEOSell18$10,501
2026-08-10CASPER MARC NChairman & CEOSell63$36,817
2026-08-10CASPER MARC NChairman & CEOSell30$17,563
2026-08-10CASPER MARC NChairman & CEOSell58$34,019
2026-08-10CASPER MARC NChairman & CEOSell12$7,052
2026-08-10CASPER MARC NChairman & CEOSell32$18,864
2026-08-10CASPER MARC NChairman & CEOSell29$17,132
2026-08-10CASPER MARC NChairman & CEOSell7$4,153
2026-08-10CASPER MARC NChairman & CEOSell3$1,742

Source: SEC Form 4 filings · as of 2026-08-20