AMERICAN CENTURY COMPANIES INC
Position in IDXX — Idexx Laboratories Inc /De
CIK 748054
KANSAS CITY, MO
Position in IDXX
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$425,551,985
+$88,456,756 QoQ
Shares Held
808,358
+34.7% QoQ
Ownership
1.03%
of shares outstanding
% of Portfolio
0.19%
of 13F equity value
Holder Rank
#16
of 1,286 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 97%
Shared 3%
None 0%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026AMERICAN CENTURY COMPANIES INC holds $1,699,444,214 across 27 Diagnostics & Research names. IDXX ranks #1 (25.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IDXX |
Idexx Laboratories Inc /De
This page
|
808,358 | $425,551,985 | |
| 2 | LH |
Labcorp Holdings Inc.
|
845,023 | $236,606,440 | |
| 3 | IQV |
Iqvia Holdings Inc.
|
1,059,526 | $204,721,613 | |
| 4 | DGX |
Quest Diagnostics Inc
|
818,220 | $173,421,729 | |
| 5 | NTRA |
Natera, Inc.
|
478,732 | $129,951,801 | |
| 6 | RDNT |
RadNet, Inc.
|
1,618,424 | $99,808,208 | |
| 7 | DHR |
Danaher Corp /De/
|
492,315 | $93,776,161 | |
| 8 | GH |
Guardant Health, Inc.
|
608,695 | $91,322,510 |
All Filings in IDXX
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26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $425,551,985 | 808,358 | Shares | Defined | 2026-08-12 | |
| 2026-03-31 | $337,095,229 | 599,931 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $425,492,719 | 628,934 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $450,518,394 | 705,158 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $457,584,370 | 853,161 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $364,513,240 | 867,992 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $334,809,500 | 809,814 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $312,442,699 | 618,429 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $274,178,620 | 562,764 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $208,163,532 | 385,538 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $225,704,421 | 406,638 | Shares | Defined | 2024-02-13 | |
| 2023-09-30 | $321,265,329 | 734,707 | Shares | Defined | 2023-11-13 | |
| 2023-06-30 | $421,197,700 | 838,655 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $517,529,791 | 1,034,894 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $616,084,873 | 1,510,160 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $498,134,842 | 1,528,959 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $535,676,943 | 1,527,320 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $778,794,616 | 1,423,600 | Shares | Defined | 2022-05-11 | |
| 2021-12-31 | $709,478,797 | 1,077,482 | Shares | Defined | 2022-02-07 | |
| 2021-09-30 | $695,780,476 | 1,118,798 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $703,397,654 | 1,113,764 | Shares | Defined | 2021-08-05 | |
| 2021-03-31 | $542,705,953 | 1,109,125 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $547,987,986 | 1,096,261 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $478,874,415 | 1,218,169 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $396,439,620 | 1,200,750 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $267,224,391 | 1,103,139 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||