ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Position in CRL — Charles River Laboratories International, Inc.
CIK 1164508
BOSTON, MA
Position in CRL
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$127,137,675
-$39,675,480 QoQ
Shares Held
737,030
-11.9% QoQ
Ownership
1.53%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
8 quarters on record
Voting authority
Sole 97.93576923598768.ToString("F0")%
Shared 0.ToString("F0")%
None 2.0642307640123194.ToString("F0")%
Common Shares in CRL 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. CRL ranks #9 (4.8% 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 CRL
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $127,137,675 | 737,030 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $166,813,155 | 836,240 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $120,386,113 | 769,437 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $87,792,343 | 578,609 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $53,221,162 | 353,582 | Shares | Defined | 2025-05-14 | |
| 2021-12-31 | $17,671,358 | 46,901 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $19,808,160 | 48,000 | Shares | Defined | 2021-11-12 | |
| 2020-06-30 | $488,180 | 2,800 | Shares | Defined | 2020-08-12 | |
| No filing history on record for this holder in this stock. | ||||||