MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Position in TMO — Thermo Fisher Scientific Inc.
CIK 912938
Boston, MA
Position in TMO
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$1,481,033,464
-$308,114,595 QoQ
Shares Held
3,013,109
-2.4% QoQ
Ownership
0.811%
of shares outstanding
% of Portfolio
0.54%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 65.89940821921809.ToString("F0")%
Shared 30.66580067299258.ToString("F0")%
None 3.4347911077893296.ToString("F0")%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $6,634,384,911 across 18 Diagnostics & Research names. TMO ranks #1 (22.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
This page
|
3,013,109 | $1,481,033,464 | |
| 2 | A |
Agilent Technologies, Inc.
|
12,624,090 | $1,438,893,775 | |
| 3 | WAT |
Waters Corp /De/
|
4,630,118 | $1,378,849,136 | |
| 4 | DHR |
Danaher Corp /De/
|
4,165,769 | $789,829,800 | |
| 5 | NTRA |
Natera, Inc.
|
2,040,106 | $408,000,796 | |
| 6 | ICLR |
Icon PLC
|
2,727,824 | $301,861,000 | |
| 7 | MTD |
Mettler Toledo International Inc/
|
148,743 | $187,594,670 | |
| 8 | CRL |
Charles River Laboratories International, Inc.
|
908,850 | $156,776,623 |
All Filings in TMO
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,481,033,464 | 3,013,109 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $1,789,148,059 | 3,087,666 | Shares | Sole | 2026-01-22 | |
| 2025-09-30 | $1,424,502,765 | 2,936,998 | Shares | Sole | 2025-10-29 | |
| 2025-06-30 | $949,903,575 | 2,342,780 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $1,192,265,520 | 2,396,032 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $1,339,920,510 | 2,575,631 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $2,098,616,248 | 3,392,690 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $2,118,837,196 | 3,831,532 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $2,503,355,740 | 4,307,145 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $2,218,853,470 | 4,180,285 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $3,243,062,062 | 6,407,061 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $3,545,220,288 | 6,794,864 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $4,687,475,418 | 8,132,754 | Shares | Sole | 2023-05-10 | |
| 2022-12-31 | $5,117,151,352 | 9,292,254 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $5,071,102,694 | 9,998,428 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $5,758,708,234 | 10,599,890 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $6,545,030,448 | 11,081,064 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $7,521,767,157 | 11,272,956 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $6,735,716,170 | 11,789,537 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $6,069,698,285 | 12,031,832 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $5,616,754,000 | 12,307,187 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $5,936,745,240 | 12,745,814 | Shares | Sole | 2021-05-12 | |
| 2020-09-30 | $5,961,361,975 | 13,501,907 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $5,138,920,379 | 14,182,592 | Shares | Sole | 2020-11-20 | |
| 2020-03-31 | $4,395,980,650 | 15,500,637 | Shares | Sole | 2020-11-20 | |
| No filing history on record for this holder in this stock. | ||||||