DaveManuel.com · Institutional Ownership · Who Owns It
IDEXX LABS INC (IDXX)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
1,312
Reporting holders
$39.3B
Reported value
94.5%
Of shares outstanding
0.1%
Calls
0.1%
Puts
-10
Holder change
Institutions report 74,466,220 shares against 78,781,116 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $4.3B | 8,170,178 | 0.06% | 8q | -2.3%-$102.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | $2.7B | 5,152,213 | 0.06% | 2q | -0.6%-$15.9M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $2.1B | 3,896,521 | 0.09% | 2q | HELD |
| STATE STREET CORP | $2.0B | 3,748,660 | 0.06% | 31q | +2.0%+$39.2M |
| Invesco Ltd. | $1.9B | 3,611,416 | 0.15% | 31q | +7.8%+$137.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $1.3B | 2,562,886 | 0.07% | 31q | -3.7%-$51.5M |
| BAMCO INC /NY/ | $1.0B | 1,976,778 | 1.56% | 31q | +21.0%+$180.8M |
| MORGAN STANLEY | $713.9M | 1,356,103 | 0.04% | 35q | +3.1%+$21.1M |
| Bank of New York Mellon Corp | $628.2M | 1,193,343 | 0.10% | 31q | -20.7%-$163.8M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $561.8M | 1,067,078 | 0.25% | 27q | +27.2%+$120.2M |
| Fundsmith LLP | $536.9M | 1,019,887 | 3.93% | 31q | -30.4%-$234.7M |
| BLAIR WILLIAM & CO/IL | $483.6M | 918,556 | 1.26% | 31q | -2.9%-$14.6M |
| NORTHERN TRUST CORP | $483.3M | 918,137 | 0.06% | 31q | +0.7%+$3.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $479.8M | 911,489 | 0.09% | 31q | +4.6%+$20.9M |
| FMR LLC | $433.1M | 822,643 | 0.02% | 31q | +190.7%+$284.1M |
| AMERICAN CENTURY COMPANIES INC | $425.6M | 808,358 | 0.19% | 31q | +34.7%+$109.7M |
| Capital Research Global Investors | $415.5M | 789,111 | 0.06% | 11q | +1.0%+$4.1M |
| JPMORGAN CHASE & CO | $405.1M | 755,791 | 0.02% | 31q | -3.1%-$12.9M |
| PRINCIPAL FINANCIAL GROUP INC | $391.3M | 743,246 | 0.19% | 31q | -15.7%-$72.6M |
| GOLDMAN SACHS GROUP INC | $388.9M | 738,708 | 0.03% | 31q | +3.0%+$11.5M |
| WELLINGTON MANAGEMENT GROUP LLP | $382.6M | 726,695 | 0.07% | 31q | -1.2%-$4.6M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $342.4M | 650,429 | 0.05% | 31q | +6.6%+$21.2M |
| Legal & General Group Plc | $324.9M | 617,197 | 0.07% | 31q | -5.2%-$17.7M |
| DIMENSIONAL FUND ADVISORS LP | $320.6M | 608,902 | 0.06% | 31q | +6.2%+$18.7M |
| FRANKLIN RESOURCES INC | $303.1M | 575,784 | 0.07% | 31q | -13.1%-$45.7M |
| Amundi | $299.9M | 569,725 | 0.07% | 21q | -6.7%-$21.6M |
| POLEN CAPITAL MANAGEMENT LLC | $280.3M | 532,384 | 2.41% | 5q | -23.5%-$86.0M |
| AustralianSuper Pty Ltd | $273.1M | 518,860 | 1.18% | 5q | +17.1%+$39.9M |
| Nuveen, LLC | $255.1M | 484,519 | 0.06% | 6q | +8.7%+$20.4M |
| BANK OF AMERICA CORP /DE/ | $251.1M | 476,998 | 0.02% | 31q | -2.3%-$5.8M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $241.3M | 458,318 | 0.02% | 31q | -28.2%-$94.6M |
| VANGUARD FIDUCIARY TRUST CO | $237.8M | 451,663 | 0.05% | 2q | -2.0%-$4.7M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $221.9M | 421,519 | 0.33% | 3q | +5.5%+$11.7M |
| CAPITAL COUNSEL LLC/NY | $220.7M | 419,151 | 8.62% | 31q | HELD |
| Alyeska Investment Group, L.P. | $211.1M | 401,082 | 0.54% | 2q | +97.3%+$104.1M |
| Clearbridge Investments, LLC | $199.8M | 379,502 | 0.17% | 31q | +23.0%+$37.4M |
| DEUTSCHE BANK AG\ | $199.0M | 377,951 | 0.06% | 34q | -2.8%-$5.7M |
| MONTRUSCO BOLTON INVESTMENTS INC. | $196.3M | 372,788 | 3.04% | 6q | +9.0%+$16.1M |
| Assenagon Asset Management S.A. | $192.9M | 366,466 | 0.12% | 27q | +326.9%+$147.7M |
| UBS Group AG | $192.0M | 364,663 | 0.02% | 31q | +19.5%+$31.3M |
| NORGES BANK | $186.3M | 353,944 | 0.02% | 32q | -27.9%-$72.2M |
| BAILLIE GIFFORD & CO | $186.3M | 353,797 | 0.17% | new | NEW |
| NEUBERGER BERMAN GROUP LLC | $186.0M | 353,322 | 0.12% | 31q | +1.0%+$1.9M |
| CIBC Bancorp USA Inc. | $183.0M | 346,891 | 0.22% | 3q | -5.6%-$10.9M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $179.7M | 336,986 | 0.06% | new | NEW |
| FUNDSMITH INVESTMENT SERVICES LTD. | $172.2M | 327,058 | 3.81% | 18q | -32.1%-$81.3M |
| Squarepoint Ops LLC | $166.6M incl. $684.4K options CALL | 315,164 | 0.18% | 17q | +214.2%+$113.6M |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $157.0M | 298,154 | 0.47% | 31q | -15.2%-$28.1M |
| BESSEMER GROUP INC | $152.0M | 288,814 | 0.21% | 31q | -9.5%-$16.0M |
| ROYAL BANK OF CANADA | $144.4M | 274,340 | 0.02% | 31q | -30.0%-$61.8M |
| Point72 Asset Management, L.P. | $139.0M incl. $579.1K options CALL | 262,905 | 0.15% | 11q | +103.4%+$70.6M |
| RAYMOND JAMES FINANCIAL INC | $138.3M | 262,791 | 0.04% | 7q | -3.7%-$5.4M |
| COMGEST GLOBAL INVESTORS S.A.S. | $138.2M | 262,562 | 3.04% | 19q | +19.2%+$22.2M |
| Williams Jones Wealth Management, LLC. | $137.6M | 261,303 | 1.55% | 28q | -0.8%-$1.2M |
| Pictet Asset Management Holding SA | $127.7M | 242,507 | 0.12% | 12q | -15.8%-$23.9M |
| Russell Investments Group, Ltd. | $121.8M | 230,683 | 0.11% | 31q | +14.4%+$15.3M |
| Swiss National Bank | $117.9M | 224,020 | 0.06% | 31q | -4.4%-$5.5M |
| Liontrust Investment Partners LLP | $113.3M | 215,198 | 1.66% | 7q | +21.3%+$19.9M |
| TD Asset Management Inc | $111.3M | 211,467 | 0.10% | 31q | -10.6%-$13.2M |
| WELLS FARGO & COMPANY/MN | $110.1M | 209,092 | 0.02% | 31q | HELD |
| FIRST TRUST ADVISORS LP | $106.7M | 202,754 | 0.06% | 31q | -13.6%-$16.8M |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $106.6M | 198,974 | 0.08% | 31q | +5.8%+$5.8M |
| Mitsubishi UFJ Asset Management Co., Ltd. | $104.8M | 199,070 | 0.06% | 31q | +5.3%+$5.3M |
| Sumitomo Mitsui Trust Group, Inc. | $103.3M | 196,296 | 0.06% | 31q | -0.8%-$829.1K |
| Vontobel Holding Ltd. | $101.0M | 191,908 | 0.32% | 23q | +3580.6%+$98.3M |
| CONGRESS ASSET MANAGEMENT CO | $100.1M | 190,193 | 0.62% | 31q | +14.1%+$12.4M |
| VICTORY CAPITAL MANAGEMENT INC | $99.4M | 188,796 | 0.06% | 31q | +3.0%+$2.9M |
| HSBC HOLDINGS PLC | $98.9M incl. $1.1M options CALL | 186,032 | 0.04% | 31q | +11.9%+$10.5M |
| Caisse de depot et placement du Quebec | $94.0M | 178,532 | 0.13% | 29q | -32.1%-$44.5M |
| Holocene Advisors, LP | $92.4M | 175,568 | 0.21% | 3q | +18.8%+$14.7M |
| Robeco Institutional Asset Management B.V. | $90.8M | 172,393 | 0.11% | 38q | -9.2%-$9.1M |
| Vanguard Global Advisers, LLC | $89.5M | 170,040 | 0.04% | 2q | -2.8%-$2.5M |
| RHUMBLINE ADVISERS | $89.1M | 169,208 | 0.07% | 31q | -2.6%-$2.4M |
| Epoch Investment Partners, Inc. | $88.9M | 168,822 | 0.51% | 30q | -3.3%-$3.0M |
| Welch & Forbes LLC | $88.3M | 167,666 | 1.07% | 31q | HELD |
| CITIGROUP INC | $87.2M | 165,689 | 0.03% | 31q | +37.7%+$23.9M |
| Quantinno Capital Management LP | $86.5M | 164,289 | 0.10% | 26q | +64.6%+$34.0M |
| TimesSquare Capital Management, LLC | $86.1M | 163,457 | 1.27% | 17q | HELD |
| AMERICAN CAPITAL MANAGEMENT INC | $85.3M | 162,110 | 3.83% | 31q | -2.4%-$2.1M |
| California Public Employees Retirement System | $83.6M | 158,871 | 0.05% | 31q | +1.5%+$1.2M |
| VANGUARD ASSET MANAGEMENT, Ltd | $81.8M | 155,306 | 0.06% | 2q | +11.3%+$8.3M |
| FEDERATED HERMES, INC. | $81.7M | 155,264 | 0.12% | 31q | -0.9%-$742.8K |
| ENVESTNET ASSET MANAGEMENT INC | $80.7M | 153,244 | 0.02% | 31q | -16.3%-$15.7M |
| Allianz Asset Management GmbH | $79.6M incl. $3.2M options CALL+PUT | 145,168 | 0.06% | 40q | -30.0%-$34.1M |
| BARCLAYS PLC | $78.4M | 148,839 | 0.02% | 31q | -20.7%-$20.5M |
| Qube Research & Technologies Ltd | $78.1M | 148,395 | 0.07% | 14q | +73.3%+$33.0M |
| BNP PARIBAS FINANCIAL MARKETS | $74.3M | 141,180 | 0.03% | 31q | +1.8%+$1.3M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $73.7M | 139,925 | 0.24% | 4q | +5.3%+$3.7M |
| Life Cycle Investment Partners Ltd | $70.7M | 134,346 | 0.33% | 3q | +22.7%+$13.1M |
| Rathbones Group PLC | $70.3M | 133,541 | 0.26% | 31q | -45.0%-$57.6M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $69.8M | 132,512 | 0.07% | 31q | +16.8%+$10.0M |
| National Pension Service | $68.1M | 129,305 | 0.04% | 31q | +5.6%+$3.6M |
| BANK OF MONTREAL /CAN/ | $65.3M | 124,073 | 0.02% | 31q | +5.0%+$3.1M |
| Trexquant Investment LP | $65.0M | 123,380 | 0.38% | new | NEW |
| Bank Julius Baer & Co. Ltd, Zurich | $64.9M | 122,801 | 0.17% | 26q | +1.1%+$680.0K |
| JANE STREET GROUP, LLC | $64.1M incl. $8.7M options CALL+PUT | 105,108 | 0.01% | 30q | +600.8%+$54.9M |
| CANADA PENSION PLAN INVESTMENT BOARD | $63.6M | 120,895 | 0.04% | 31q | +48.5%+$20.8M |
| LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA | $61.7M | 117,195 | 0.60% | 31q | -4.2%-$2.7M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $61.6M | 116,995 | 0.06% | 31q | -4.6%-$3.0M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $61.5M incl. $32.8M options CALL+PUT | 54,439 | 0.00% | 31q | +287.2%+$45.6M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-30 | 13G | Vanguard Portfolio Management | 5.0% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-04 | Kingsley Lawrence D | Director | Sold | 2,203 | $1.2M |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 426 | $2.2B | 4,116,068 | 33 | 109 | 164 | 0.0% |
| Q2 2026 | 1,312 | $39.3B | 74,466,220 | 102 | 446 | 483 | 0.2% |
| Q1 2026 | 1,322 | $41.4B | 73,441,298 | 104 | 408 | 489 | 0.3% |
| Q4 2025 | 1,391 | $50.8B | 74,824,423 | 124 | 452 | 438 | 0.4% |
| Q3 2025 | 1,308 | $47.0B | 73,153,411 | 154 | 385 | 457 | 0.7% |
| Q2 2025 | 1,246 | $40.5B | 74,989,657 | 186 | 393 | 391 | 0.6% |
| Q1 2025 | 1,151 | $31.3B | 74,195,580 | 114 | 444 | 337 | 0.6% |
| Q4 2024 | 1,132 | $30.1B | 72,300,105 | 90 | 310 | 420 | 0.7% |
| Q3 2024 | 1,123 | $37.3B | 73,467,231 | 91 | 324 | 403 | 0.7% |
| Q2 2024 | 1,117 | $37.1B | 75,667,354 | 75 | 391 | 357 | 0.7% |
| Q1 2024 | 1,153 | $41.2B | 75,849,384 | 83 | 372 | 379 | 0.8% |
| Q4 2023 | 1,164 | $41.9B | 75,151,215 | 124 | 314 | 405 | 0.6% |
| Q3 2023 | 1,067 | $32.7B | 74,392,884 | 78 | 351 | 353 | 0.6% |
| Q2 2023 | 1,076 | $37.1B | 73,420,985 | 71 | 363 | 359 | 0.6% |
| Q1 2023 | 1,065 | $37.2B | 73,504,362 | 136 | 311 | 378 | 1.1% |
| Q4 2022 | 1,005 | $31.1B | 75,417,082 | 131 | 284 | 356 | 1.1% |
| Q3 2022 | 903 | $49.4B | 150,739,999 | 49 | 300 | 316 | 0.4% |
| Q2 2022 | 946 | $56.9B | 161,486,796 | 85 | 311 | 339 | 0.4% |
| Q1 2022 | 1,026 | $73.7B | 134,111,638 | 70 | 335 | 374 | 0.4% |
| Q4 2021 | 1,105 | $93.9B | 142,040,460 | 80 | 313 | 365 | 0.5% |
| Q3 2021 | 1,054 | $99.8B | 159,736,706 | 91 | 299 | 358 | 0.5% |
| Q2 2021 | 1,032 | $91.7B | 144,577,085 | 98 | 297 | 357 | 0.4% |
| Q1 2021 | 1,004 | $79.9B | 162,636,888 | 95 | 326 | 350 | 0.3% |
| Q4 2020 | 968 | $75.2B | 148,954,918 | 123 | 288 | 300 | 0.3% |
| Q3 2020 | 847 | $63.9B | 162,356,182 | 87 | 260 | 275 | 0.2% |
| Q2 2020 | 798 | $57.0B | 172,236,295 | 113 | 235 | 284 | 0.2% |
| Q1 2020 | 743 | $41.8B | 172,433,100 | 83 | 225 | 284 | 0.2% |
| Q4 2019 | 754 | $47.0B | 179,566,140 | 68 | 221 | 233 | 0.2% |
| Q3 2019 | 721 | $39.5B | 144,843,527 | 70 | 215 | 241 | 0.3% |
| Q2 2019 | 713 | $42.2B | 152,723,869 | 94 | 184 | 263 | 0.4% |
| Q1 2019 | 685 | $27.0B | 120,219,221 | 84 | 217 | 212 | 0.4% |
| Q4 2018 | 668 | $26.1B | 138,161,130 | 6 | 7 | 13 | 0.3% |