Citadel Advisors’s Idexx Laboratories IDXX Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $49.2M | Buy |
87,566
+69,723
| +391% | +$44.7M | 0.01% | 1381 |
|
|
2025
Q4 | $12.1M | Sell |
17,843
-9,733
| -35% | -$6.63M | ﹤0.01% | 3008 |
|
|
2025
Q3 | $17.6M | Sell |
27,576
-15,806
| -36% | -$9.59M | ﹤0.01% | 2494 |
|
|
2025
Q2 | $23.3M | Buy |
43,382
+42,310
| +3,947% | +$20.2M | ﹤0.01% | 1969 |
|
|
2025
Q1 | $450K | Sell |
1,072
-76,982
| -99% | -$33.4M | ﹤0.01% | 8709 |
|
|
2024
Q4 | $32.3M | Buy |
78,054
+54,954
| +238% | +$24.1M | 0.01% | 1676 |
|
|
2024
Q3 | $11.7M | Sell |
23,100
-54,272
| -70% | -$26.4M | ﹤0.01% | 2679 |
|
|
2024
Q2 | $37.7M | Buy |
77,372
+35,125
| +83% | +$17.6M | 0.01% | 1384 |
|
|
2024
Q1 | $22.8M | Sell |
42,247
-99,625
| -70% | -$54.4M | ﹤0.01% | 1938 |
|
|
2023
Q4 | $78.7M | Buy |
141,872
+96,605
| +213% | +$45.4M | 0.02% | 838 |
|
|
2023
Q3 | $19.8M | Sell |
45,267
-57,667
| -56% | -$28.8M | ﹤0.01% | 1875 |
|
|
2023
Q2 | $51.7M | Sell |
102,934
-608,965
| -86% | -$292M | 0.01% | 1021 |
|
|
2023
Q1 | $356M | Buy |
711,899
+313,801
| +79% | +$150M | 0.08% | 158 |
|
|
2022
Q4 | $162M | Buy |
398,098
+29,767
| +8% | +$11.6M | 0.04% | 416 |
|
|
2022
Q3 | $120M | Buy |
368,331
+264,023
| +253% | +$97M | 0.03% | 515 |
|
|
2022
Q2 | $36.6M | Buy |
104,308
+102,533
| +5,777% | +$41.8M | 0.01% | 1283 |
|
|
2022
Q1 | $971K | Sell |
1,775
-327
| -16% | -$172K | ﹤0.01% | 7760 |
|
|
2021
Q4 | $1.38M | Sell |
2,102
-45,973
| -96% | -$28.9M | ﹤0.01% | 7072 |
|
|
2021
Q3 | $29.9M | Buy |
+48,075
| New | +$32.3M | 0.01% | 1569 |
|
|
2021
Q2 | – | Sell |
-24,643
| Closed | -$13.6M | – | 14004 |
|
|
2021
Q1 | $12.1M | Sell |
24,643
-7,009
| -22% | -$3.51M | ﹤0.01% | 2700 |
|
|
2020
Q4 | $15.8M | Sell |
31,652
-150,908
| -83% | -$67.5M | ﹤0.01% | 2062 |
|
|
2020
Q3 | $71.8M | Buy |
182,560
+173,899
| +2,008% | +$64.3M | 0.02% | 641 |
|
|
2020
Q2 | $2.86M | Buy |
8,661
+4,930
| +132% | +$1.43M | ﹤0.01% | 3945 |
|
|
2020
Q1 | $904K | Buy |
+3,731
| New | +$974K | ﹤0.01% | 5524 |
|
|
2019
Q3 | – | Sell |
-5,738
| Closed | -$1.6M | – | 9440 |
|
|
2019
Q2 | $1.58M | Buy |
+5,738
| New | +$1.41M | ﹤0.01% | 4927 |
|
|
2019
Q1 | – | Sell |
-28,328
| Closed | -$5.85M | – | 9548 |
|
|
2018
Q4 | $5.27M | Buy |
28,328
+11,301
| +66% | +$2.32M | ﹤0.01% | 2706 |
|
|
2018
Q3 | $4.25M | Sell |
17,027
-7,022
| -29% | -$1.7M | ﹤0.01% | 3209 |
|
|
2018
Q2 | $5.24M | Sell |
24,049
-55,446
| -70% | -$11.4M | ﹤0.01% | 2706 |
|
|
2018
Q1 | $15.2M | Buy |
79,495
+34,182
| +75% | +$6.31M | 0.01% | 1347 |
|
|
2017
Q4 | $7.09M | Buy |
45,313
+40,562
| +854% | +$6.38M | ﹤0.01% | 2074 |
|
|
2017
Q3 | $739K | Sell |
4,751
-59,502
| -93% | -$9.41M | ﹤0.01% | 4761 |
|
|
2017
Q2 | $10.4M | Buy |
+64,253
| New | +$10.4M | 0.01% | 1432 |
|
|
2017
Q1 | – | Sell |
-35,893
| Closed | -$4.95M | – | 7714 |
|
|
2016
Q4 | $4.21M | Sell |
35,893
-7,726
| -18% | -$882K | ﹤0.01% | 2169 |
|
|
2016
Q3 | $4.92M | Buy |
43,619
+38,420
| +739% | +$4.05M | ﹤0.01% | 2005 |
|
|
2016
Q2 | $483K | Sell |
5,199
-61,705
| -92% | -$5.3M | ﹤0.01% | 4528 |
|
|
2016
Q1 | $5.24M | Sell |
66,904
-2,751
| -4% | -$198K | 0.01% | 1722 |
|
|
2015
Q4 | $5.08M | Sell |
69,655
-137,555
| -66% | -$9.81M | 0.01% | 1806 |
|
|
2015
Q3 | $15.4M | Buy |
207,210
+22,768
| +12% | +$1.63M | 0.01% | 1070 |
|
|
2015
Q2 | $11.8M | Buy |
184,442
+2,924
| +2% | +$202K | 0.01% | 1359 |
|
|
2015
Q1 | $14M | Sell |
181,518
-532,846
| -75% | -$41.5M | 0.01% | 1203 |
|
|
2014
Q4 | $53M | Buy |
714,364
+652,004
| +1,046% | +$45.7M | 0.05% | 447 |
|
|
2014
Q3 | $3.67M | Buy |
62,360
+47,800
| +328% | +$3.02M | ﹤0.01% | 2262 |
|
|
2014
Q2 | $972K | Sell |
14,560
-48,058
| -77% | -$3.06M | ﹤0.01% | 3525 |
|
|
2014
Q1 | $3.8M | Sell |
62,618
-9,452
| -13% | -$563K | ﹤0.01% | 2015 |
|
|
2013
Q4 | $3.83M | Buy |
72,070
+36,406
| +102% | +$1.92M | 0.01% | 1896 |
|
|
2013
Q3 | $1.78M | Sell |
35,664
-203,540
| -85% | -$9.78M | ﹤0.01% | 2523 |
|
|
2013
Q2 | $10.7M | Buy |
+239,204
| New | +$10.5M | 0.02% | 1025 |
|
Other funds holding IDXX
VCM
VPM
Citadel Advisors's IDXX Position: Q1 2026 in Review
Citadel Advisors increased its Idexx Laboratories (IDXX) stake by 391% in Q1 2026, buying an estimated $44.7M and bringing the position to 87,566 shares worth $49.2M. The position accounts for 0.01% of the portfolio, ranked #1381.
Citadel Advisors first reported a position in IDXX in Q2 2013 and has held it in 47 quarters since. The position peaked at $356M in Q1 2023. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.
- Citadel Advisors held 87,566 shares of Idexx Laboratories worth $49.2M as of Q1 2026.
- Citadel Advisors bought 69,723 Idexx Laboratories shares in Q1 2026, an estimated $44.7M.
- Idexx Laboratories made up 0.01% of Citadel Advisors's portfolio in Q1 2026, its #1381 holding.
- Citadel Advisors first reported a position in Idexx Laboratories in Q2 2013 and has held it in 47 quarters since.
- Citadel Advisors's Idexx Laboratories position peaked at $356M in Q1 2023.
- 1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.