CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in TMO — Thermo Fisher Scientific Inc.
CIK 884546
SAN FRANCISCO, CA
Position in TMO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,442,562,888
-$205,192,421 QoQ
Shares Held
2,934,842
+3.2% QoQ
Ownership
0.790%
of shares outstanding
% of Portfolio
0.25%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 99.99604748739455.ToString("F0")%
Shared 0.ToString("F0")%
None 0.003952512605448607.ToString("F0")%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $4,755,724,319 across 32 Diagnostics & Research names. TMO ranks #1 (30.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
This page
|
2,934,842 | $1,442,562,888 | |
| 2 | DHR |
Danaher Corp /De/
|
4,734,898 | $897,736,660 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
|
610,217 | $342,874,830 | |
| 4 | IQV |
Iqvia Holdings Inc.
|
1,412,147 | $240,827,549 | |
| 5 | WAT |
Waters Corp /De/
|
772,524 | $230,057,646 | |
| 6 | A |
Agilent Technologies, Inc.
|
1,904,308 | $217,053,025 | |
| 7 | MTD |
Mettler Toledo International Inc/
|
161,665 | $203,891,898 | |
| 8 | LH |
Labcorp Holdings Inc.
|
646,135 | $172,395,279 |
All Filings in TMO
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,442,562,888 | 2,934,842 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $1,647,755,309 | 2,843,654 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $1,384,464,368 | 2,854,448 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $1,216,607,867 | 3,000,562 | Shares | Other | 2025-08-12 | |
| 2025-03-31 | $1,455,506,869 | 2,925,054 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $1,461,912,888 | 2,810,128 | Shares | Other | 2025-02-06 | |
| 2024-09-30 | $1,511,746,110 | 2,443,937 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $1,317,754,760 | 2,382,920 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $1,364,924,606 | 2,348,419 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $1,208,750,020 | 2,277,266 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $1,105,945,005 | 2,184,928 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $1,135,461,568 | 2,176,256 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $1,263,170,186 | 2,191,596 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $1,185,626,758 | 2,152,984 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $1,060,275,115 | 2,090,489 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,119,285,014 | 2,060,236 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $1,208,215,329 | 2,045,569 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $1,343,505,088 | 2,013,526 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $1,123,417,605 | 1,966,320 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $981,260,235 | 1,945,131 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $866,064,111 | 1,897,682 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $877,196,021 | 1,883,284 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $845,721,405 | 1,915,477 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $676,317,393 | 1,866,527 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $532,430,923 | 1,877,401 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||