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TMO

Thermo Fisher Scientific

XNYS · MEASURING & CONTROLLING DEVICES, NEC

13 articles20 insider tx20 holders0 supply chain10 selling intent filings0 new insiders

Research articles

Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.

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Recent insider activity

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$100.0M$50.0M$0-$50.0M-$100.0M2024-10 -$23.3M2024-11 -$19.0M2024-12 -$10.2M2025-01 $02025-02 -$21.5M2025-03 -$12.2M2025-04 -$129K2025-05 -$164K2025-06 $02025-07 -$192K2025-08 -$13.6M2025-09 -$150K2025-10 -$14.1M2025-11 -$17.4M2025-12 -$56.7M2026-01 $02026-02 -$216K2026-03 -$7.6M2026-04 -$185K2026-05 $02026-06 $02026-07 -$226K2026-08 -$61.0M2026-09 $0Institutional shares (majority-gated quarters)200.0M100.0M02025-Q4 108.7M sh2026-Q1 81.7M sh2026-Q2 86.8M shOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Q4 2025Q1 2026Q2 2026~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

open-market Form 4 only - grants, exercises, tax withholding excluded

0 buyers - 5 unique sellers · 6 accumulating - 6 trimming - 2 unchanged

Date Insider Title Type Shares Price Value
September 26, 2026 Johnson Jennifer M — GRANT 46.3 — —
September 26, 2026 Keith R. Alexandra — GRANT 46.3 — —
September 26, 2026 Lynch Karen S — GRANT 46.3 — —
September 26, 2026 Sperling Scott M — GRANT 62.96 — —
September 26, 2026 Weisler Dion J — GRANT 55.56 — —
August 31, 2026 Pettiti Gianluca President & COO SELL -400 $614 ~$0.2M
August 31, 2026 Pettiti Gianluca President & COO OPTION_EXERCISE 3,733 $310 ~$1.2M
August 31, 2026 Pettiti Gianluca President & COO SELL -3,733 $614 ~$2.3M
August 31, 2026 Pettiti Gianluca President & COO OPTION_EXERCISE -3,733 — —
August 28, 2026 Casper Marc N Chairman & CEO TAX_WITHHOLD -724.77 $622 ~$0.5M
August 28, 2026 Casper Marc N Chairman & CEO TAX_WITHHOLD -531.85 $622 ~$0.3M
August 28, 2026 Meyer James Sr. Vice President & CFO TAX_WITHHOLD -37.23 $622 ~$23K
August 28, 2026 Meyer James Sr. Vice President & CFO TAX_WITHHOLD -44.48 $622 ~$28K
August 28, 2026 Meyer James Sr. Vice President & CFO TAX_WITHHOLD -19.82 $622 ~$12K
August 28, 2026 Meyer James Sr. Vice President & CFO TAX_WITHHOLD -55.12 $622 ~$34K
August 28, 2026 Meyer James Sr. Vice President & CFO TAX_WITHHOLD -113.62 $622 ~$71K
August 28, 2026 Shropshire Thomas B Jr. SVP and General Counsel TAX_WITHHOLD -49.02 $622 ~$31K
August 28, 2026 Shafer Michael D Executive Vice President TAX_WITHHOLD -162.46 $622 ~$0.1M
August 28, 2026 Shafer Michael D Executive Vice President TAX_WITHHOLD -210.81 $622 ~$0.1M
August 28, 2026 Shafer Michael D Executive Vice President TAX_WITHHOLD -189.53 $622 ~$0.1M

Insider Selling Intent (Form 144)

Date Filer Relationship Est. shares Filing
August 31, 2026 Pettiti Gianluca — 4,133 SEC
August 24, 2026 Casper Marc N — 275 SEC
August 21, 2026 Casper Marc N — 10,000 SEC
August 20, 2026 Casper Marc N — 10,000 SEC
August 19, 2026 Britt Lisa P. — 11,440 SEC
August 11, 2026 Shafer Michael D — 25,500 SEC
August 7, 2026 Holmes Joseph R. — 420 SEC
August 7, 2026 Casper Marc N — 4,883 SEC
August 6, 2026 Casper Marc N — 15,000 SEC
August 6, 2026 Britt Lisa P. — 5,850 SEC

Institutional holdings

Institution Shares Value ($) Change % Filing date
Vanguard Group 34,133,702 ~$19.8B — January 29, 2026
BlackRock 30,677,885 ~$17.8B — February 12, 2026
BlackRock 29,529,326 ~$16.3B — August 13, 2024
BlackRock 30,919,632 ~$15.5B 1.5% August 7, 2026
BlackRock 30,450,692 ~$15.0B -0.7% May 13, 2026
State Street 16,613,761 ~$9.6B — February 13, 2026
State Street 16,825,879 ~$8.4B 0.6% August 7, 2026
State Street 16,731,668 ~$8.2B 0.7% May 15, 2026
Fidelity (FMR) 14,084,488 ~$7.1B 30.7% August 13, 2026
Morgan Stanley 11,894,277 ~$6.9B — May 27, 2026
Fidelity (FMR) 9,793,347 ~$5.7B — February 17, 2026
Morgan Stanley 10,763,066 ~$5.4B -0.9% August 13, 2026
Morgan Stanley 10,863,528 ~$5.3B -8.7% May 15, 2026
Fidelity (FMR) 10,776,436 ~$5.3B 10.0% May 15, 2026
JP Morgan Chase 8,534,427 ~$4.3B 24.0% August 12, 2026
JP Morgan Chase 6,884,282 ~$3.3B 100.0% May 13, 2026
Goldman Sachs 3,220,084 ~$1.9B — March 25, 2026
Goldman Sachs 3,266,026 ~$1.6B 1.4% May 15, 2026
Goldman Sachs 3,095,866 ~$1.6B -5.2% August 14, 2026
Citadel Advisors 1,329,505 ~$770.4M — February 17, 2026
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