MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Position in ADPT — Adaptive Biotechnologies Corp
CIK 912938
Boston, MA
Position in ADPT
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$14,883,954
-$97,462 QoQ
Shares Held
1,072,331
+16.2% QoQ
Ownership
0.670%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ADPT 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. ADPT ranks #15 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
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 ADPT
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $14,883,954 | 1,072,331 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $14,981,416 | 922,501 | Shares | Sole | 2026-01-22 | |
| 2025-09-30 | $18,544,789 | 1,239,625 | Shares | Sole | 2025-10-29 | |
| 2025-06-30 | $17,033,593 | 1,462,111 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $17,135,898 | 2,306,312 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $20,208,659 | 3,370,919 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $14,752,583 | 2,881,364 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $14,161,537 | 3,912,027 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $8,321,340 | 2,592,318 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $12,757,150 | 2,603,500 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $10,744,457 | 1,971,460 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $14,222,574 | 2,119,609 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $20,125,423 | 2,279,210 | Shares | Sole | 2023-05-10 | |
| 2022-12-31 | $10,347,868 | 1,354,433 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $8,643,074 | 1,213,915 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $6,820,484 | 843,076 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $39,944,457 | 2,877,843 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $68,142,585 | 2,428,460 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $75,414,597 | 2,218,729 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $87,780,313 | 2,148,319 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $90,743,945 | 2,253,948 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $171,195,774 | 2,895,244 | Shares | Sole | 2021-05-12 | |
| 2020-09-30 | $143,570,541 | 2,952,304 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $108,322,045 | 2,238,984 | Shares | Sole | 2020-11-20 | |
| 2020-03-31 | $41,354,890 | 1,488,657 | Shares | Sole | 2020-11-20 | |
| No filing history on record for this holder in this stock. | ||||||