TMO
Thermo Fisher Sc (TMO)
NYSE
$630.75+$1.48 (+0.24%)
Price as of Aug 21, 2026 7:57 PM EDT
  • $232.0B
    Market Cap
  • 26.32%
    1-Year Change
  • Diagnostics & Research
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD GROUP INC
9.19%
34.1M
+288,296 (+0.84%)
Dec 31, 2025
J. STERN & CO. LLP
8.48%
31.5M
+31.5M (+99.83%)
Dec 31, 2025
BLACKROCK, INC.
8.32%
30.9M
+492,440 (+1.59%)
Jun 30, 2026
BLACKROCK INC.
7.95%
29.5M
+549,482 (+1.86%)
Jun 30, 2024
BLACKROCK FUNDING, INC. /DE
7.76%
28.8M
-321,216 (-1.11%)
Dec 31, 2024
VANGUARD CAPITAL MANAGEMENT LLC
6.53%
24.3M
-4,500 (-0.02%)
Jun 30, 2026
STATE STREET CORP
4.53%
16.8M
+94,211 (+0.56%)
Jun 30, 2026

Current Ownership Distribution

  • Mutual Funds7.9B (55.07%)
  • Institutions6.4B (44.92%)
  • Insiders1.7M (0.01%)
  • Other0 (0.00%)

Insider Transactions

  • 0.01% (1.7M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $6.0B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Holmes Joseph R.
VP & Chief Accounting Officer
Exempt
Aug 07, 2026
$0.00
420
$0.00
140
CASPER MARC N
Chairman & CEO
Exempt
Aug 07, 2026
$0.00
275
$0.00
20,275
Holmes Joseph R.
VP & Chief Accounting Officer
Exempt
Aug 07, 2026
$130,044.60
420
$309.63
3,386
CASPER MARC N
Chairman & CEO
Exempt
Aug 07, 2026
$85,148.25
275
$309.63
124,200
Holmes Joseph R.
VP & Chief Accounting Officer
Sell
Aug 07, 2026
$245,620.20
420
$584.81
2,966
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$3,464.22
6
$577.37
124,194
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$2,317.04
4
$579.26
124,190
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$1,158.54
2
$579.27
124,188
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$2,322.84
4
$580.71
124,184
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$1,742.16
3
$580.72
124,181
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$2,909.25
5
$581.85
124,176
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$1,163.72
2
$581.86
124,174
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$10,500.66
18
$583.37
124,156
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$36,817.20
63
$584.40
124,093
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$17,562.60
30
$585.42
124,063
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$34,018.74
58
$586.53
124,005
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$7,051.68
12
$587.64
123,993
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$18,864.32
32
$589.51
123,961
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$17,132.33
29
$590.77
123,932
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$4,153.24
7
$593.32
123,925
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$54,272.78
94
$577.37
4,514
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$66,035.64
114
$579.26
4,400
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$65,620.23
113
$580.71
4,287
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$65,749.05
113
$581.85
4,174
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$176,171.70
302
$583.35
3,872
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$604,864.35
1,035
$584.41
2,837
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$310,283.20
530
$585.44
2,307
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$554,261.40
945
$586.52
1,362
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$133,981.92
228
$587.64
1,134
CASPER MARC N
Chairman & CEO
Sell
Aug 07, 2026
$307,729.44
522
$589.52
612