PRICE T ROWE ASSOCIATES INC /MD/
Position in TMO — Thermo Fisher Scientific Inc.
CIK 80255
BALTIMORE, MD
Position in TMO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$3,104,243,460
-$1,358,305,535 QoQ
Shares Held
6,315,471
-18.0% QoQ
Ownership
1.70%
of shares outstanding
% of Portfolio
0.38%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 97.23439471101997.ToString("F0")%
Shared 0.ToString("F0")%
None 2.76560528898003.ToString("F0")%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026PRICE T ROWE ASSOCIATES INC /MD/ holds $13,532,353,094 across 31 Diagnostics & Research names. TMO ranks #1 (22.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
This page
|
6,315,471 | $3,104,243,460 | |
| 2 | DHR |
Danaher Corp /De/
|
15,352,887 | $2,910,907,374 | |
| 3 | NTRA |
Natera, Inc.
|
12,184,876 | $2,436,853,350 | |
| 4 | DGX |
Quest Diagnostics Inc
|
6,297,987 | $1,234,279,491 | |
| 5 | RVTY |
Revvity, Inc.
|
10,090,158 | $883,998,742 | |
| 6 | GH |
Guardant Health, Inc.
|
7,023,689 | $648,778,152 | |
| 7 | MTD |
Mettler Toledo International Inc/
|
305,763 | $385,628,295 | |
| 8 | IDXX |
Idexx Laboratories Inc /De
|
638,063 | $358,521,218 |
All Filings in TMO
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25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,104,243,460 | 6,315,471 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $4,462,548,995 | 7,701,353 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $3,138,312,694 | 6,470,481 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $2,253,813,877 | 5,558,659 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $4,630,084,403 | 9,304,832 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $5,679,155,303 | 10,916,624 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $6,787,603,867 | 10,973,057 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $5,488,729,610 | 9,925,370 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $5,843,846,271 | 10,054,621 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $5,253,730,757 | 9,897,946 | Shares | Sole | 2024-02-16 | |
| 2023-09-30 | $5,131,604,607 | 10,138,105 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $4,758,019,296 | 9,119,347 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $4,949,077,085 | 8,586,632 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $5,024,306,673 | 9,123,657 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $4,545,595,530 | 8,962,313 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $6,925,090,739 | 12,746,817 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $8,582,780,039 | 14,531,076 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $8,721,189,778 | 13,070,544 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $7,528,272,006 | 13,176,749 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $6,717,901,376 | 13,316,751 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $5,103,725,379 | 11,183,061 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $5,851,310,014 | 12,562,390 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $6,170,518,833 | 13,975,627 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $5,291,331,097 | 14,603,221 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $4,673,761,464 | 16,480,118 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||