CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in ADPT — Adaptive Biotechnologies Corp
CIK 884546
SAN FRANCISCO, CA
Position in ADPT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$15,902,066
-$3,156,142 QoQ
Shares Held
1,145,682
-2.4% QoQ
Ownership
0.716%
of shares outstanding
% of Portfolio
0.00%
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, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $4,755,724,319 across 32 Diagnostics & Research names. ADPT ranks #20 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
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 ADPT
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $15,902,066 | 1,145,682 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $19,058,208 | 1,173,535 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $17,242,312 | 1,152,561 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $12,144,542 | 1,042,450 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $6,855,973 | 922,742 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $5,734,661 | 956,574 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $4,693,724 | 916,743 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $3,281,461 | 906,481 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $2,792,000 | 869,782 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $3,704,066 | 755,932 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $4,681,915 | 859,067 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $5,622,241 | 837,890 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $7,269,906 | 823,319 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $6,298,408 | 824,399 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $5,684,230 | 798,347 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $8,847,369 | 1,093,618 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $11,933,579 | 859,768 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $23,589,228 | 840,671 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $27,926,863 | 821,620 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $25,573,007 | 625,869 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $24,289,139 | 603,307 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $32,605,819 | 551,426 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $26,301,584 | 540,851 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $7,671,229 | 158,562 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $4,065,769 | 146,356 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||