ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Position in ADPT — Adaptive Biotechnologies Corp
CIK 1164508
BOSTON, MA
Position in ADPT
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$27,693,403
-$11,641,322 QoQ
Shares Held
1,995,202
-17.6% QoQ
Ownership
1.25%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
7 quarters on record
Voting authority
Sole 99.82903986664007.ToString("F0")%
Shared 0.ToString("F0")%
None 0.17096013335993046.ToString("F0")%
Common Shares in ADPT Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $2,675,072,774 across 18 Diagnostics & Research names. ADPT ranks #12 (1.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | DHR |
Danaher Corp /De/
|
3,639,630 | $690,073,848 | |
| 2 | IDXX |
Idexx Laboratories Inc /De
|
838,839 | $471,335,245 | |
| 3 | TMO |
Thermo Fisher Scientific Inc.
|
634,369 | $311,811,394 | |
| 4 | NTRA |
Natera, Inc.
|
1,191,732 | $238,334,482 | |
| 5 | MEDP |
Medpace Holdings, Inc.
|
395,769 | $190,044,316 | |
| 6 | MTD |
Mettler Toledo International Inc/
|
134,906 | $170,143,447 | |
| 7 | IQV |
Iqvia Holdings Inc.
|
992,190 | $169,208,082 | |
| 8 | A |
Agilent Technologies, Inc.
|
1,439,782 | $164,106,352 |
All Filings in ADPT
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $27,693,403 | 1,995,202 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $39,334,725 | 2,422,089 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $36,523,373 | 2,441,402 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $4,416,748 | 379,120 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $339,855 | 45,741 | Shares | Defined | 2025-05-14 | |
| 2020-12-31 | $9,508,695 | 160,810 | Shares | Defined | 2021-02-12 | |
| 2020-03-31 | $2,075,582 | 74,715 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||