| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| SCHWARTZ NORMAN D | 97% | $1,382,052,897 | 4,929,036 | Norman D. Schwartz | 25 Sep 2025 | |||
| SCHWARTZ ALICE N | 12% | $659,303,856 | 2,732,073 | Alice N. Schwartz | 01 May 2025 | |||
| First Eagle Investment Management, LLC | 11% | +14% | $657,060,173 | +$60,827,513 | 2,528,321 | +10% | First Eagle Investment Management, LLC | 30 Jun 2025 |
| VANGUARD GROUP INC | 8.4% | $462,850,693 | 1,907,640 | The Vanguard Group - 23-1945930 | 30 Sep 2024 | |||
| BlackRock, Inc. | 7.4% | $453,705,832 | 1,618,123 | BlackRock, Inc. | 30 Sep 2025 |
As of 31 Dec 2025, 387 institutional investors reported holding 19,388,061 shares of BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO). This represents 382% of the company’s total 5,071,025 outstanding shares.
The largest institutional shareholders of BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO) together control 288% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| First Eagle Investment Management, LLC | 51% | 2,570,473 | +2% | 1.4% | $778,827,760 |
| VANGUARD GROUP INC | 35% | 1,774,263 | -1.1% | 0.01% | $537,583,947 |
| BlackRock, Inc. | 33% | 1,680,948 | -0.88% | 0.01% | $509,310,344 |
| DIMENSIONAL FUND ADVISORS LP | 21% | 1,077,072 | +1.3% | 0.07% | $326,343,765 |
| ARIEL INVESTMENTS, LLC | 15% | 764,672 | -5.5% | 2.5% | $231,687,970 |
| EARNEST PARTNERS LLC | 12% | 603,594 | -0.93% | 0.78% | $182,882,946 |
| STATE STREET CORP | 11% | 559,604 | -2.1% | 0.01% | $169,554,416 |
| Veritas Asset Management LLP | 11% | 543,335 | -36% | 1.7% | $164,625,072 |
| Capital Research Global Investors | 9.8% | 494,472 | +18% | 0.03% | $149,820,071 |
| BANK OF AMERICA CORP /DE/ | 8.8% | 445,449 | -3.1% | 0.01% | $134,966,592 |
| First Pacific Advisors, LP | 7.9% | 401,457 | +1.8% | 1.6% | $121,637,456 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 7.9% | 399,207 | +4534% | 0.04% | $120,955,730 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 7.8% | 395,077 | -0.53% | 0.03% | $119,704,381 |
| GEODE CAPITAL MANAGEMENT, LLC | 6.7% | 338,328 | -3.4% | 0.01% | $102,531,269 |
| SEI INVESTMENTS CO | 5.8% | 291,914 | +3.3% | 0.09% | $88,445,447 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 5.1% | 259,577 | +9.1% | 0.27% | $78,649,137 |
| PARNASSUS INVESTMENTS, LLC | 5% | 252,140 | -20% | 0.2% | $76,395,899 |
| Boston Partners | 4.9% | 247,612 | 0.08% | $75,037,041 | |
| Mawer Investment Management Ltd. | 4.6% | 233,946 | -3.9% | 0.4% | $70,883,299 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 4.5% | 227,630 | -4.1% | 3.1% | $68,969,614 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 4.5% | 226,070 | 0% | 0.88% | $68,496,949 |
| UBS Group AG | 4.3% | 216,186 | -6.3% | 0.01% | $65,502,197 |
| NORTHERN TRUST CORP | 4.3% | 216,171 | -4.4% | 0.01% | $65,497,651 |
| THOMPSON SIEGEL & WALMSLEY LLC | 3.8% | 191,961 | -12% | 0.98% | $58,162,000 |
| MORGAN STANLEY | 3.7% | 186,386 | +7.1% | 0% | $56,473,525 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 19,388,061 | $5,874,656,784 | -$34,042,917 | $302.99 | 387 |
| 2025 Q3 | 19,459,016 | $5,457,813,449 | +$102,667,994 | $280.39 | 392 |
| 2025 Q2 | 19,201,217 | $4,634,744,932 | +$3,469,914 | $241.32 | 380 |
| 2025 Q1 | 19,188,664 | $4,671,911,959 | +$52,969,583 | $243.56 | 429 |
| 2024 Q4 | 18,778,253 | $6,169,336,505 | -$215,682,627 | $328.51 | 450 |
| 2024 Q3 | 19,370,183 | $6,481,921,085 | -$218,781,622 | $334.58 | 433 |
| 2024 Q2 | 19,799,636 | $5,407,155,613 | +$314,233,620 | $273.11 | 428 |
| 2024 Q1 | 18,483,713 | $6,388,531,345 | +$32,714,858 | $345.87 | 456 |
| 2023 Q4 | 18,529,807 | $5,981,150,118 | -$116,305,124 | $322.89 | 479 |
| 2023 Q3 | 18,786,490 | $6,730,924,381 | -$58,698,141 | $358.45 | 466 |
| 2023 Q2 | 18,297,158 | $6,935,982,346 | -$192,100,378 | $379.12 | 463 |
| 2023 Q1 | 19,221,018 | $9,200,944,144 | +$12,069,903 | $479.02 | 499 |
| 2022 Q4 | 19,259,738 | $8,110,380,673 | -$117,736,871 | $420.49 | 467 |
| 2022 Q3 | 19,487,538 | $8,135,809,192 | +$113,970,897 | $417.14 | 471 |
| 2022 Q2 | 19,114,362 | $9,462,174,468 | +$34,485,329 | $495.00 | 489 |
| 2022 Q1 | 19,167,385 | $10,796,615,316 | -$34,402,167 | $563.23 | 505 |
| 2021 Q4 | 19,102,716 | $14,417,922,909 | -$389,707,592 | $755.57 | 521 |
| 2021 Q3 | 19,387,789 | $14,451,450,076 | +$60,848,148 | $745.95 | 500 |
| 2021 Q2 | 19,381,230 | $12,476,219,166 | -$119,629,052 | $644.29 | 496 |
| 2021 Q1 | 19,617,764 | $11,195,376,908 | -$8,883,384 | $571.17 | 483 |
| 2020 Q4 | 19,657,768 | $11,449,028,308 | +$302,277,766 | $582.94 | 483 |
| 2020 Q3 | 19,264,413 | $9,927,181,928 | +$28,169,224 | $515.46 | 471 |
| 2020 Q2 | 19,228,922 | $8,674,553,754 | +$210,745,728 | $451.49 | 461 |
| 2020 Q1 | 18,823,652 | $6,598,533,578 | -$18,322,057 | $350.56 | 400 |
| 2019 Q4 | 18,896,407 | $6,990,274,305 | -$73,846,893 | $370.03 | 378 |
| 2019 Q3 | 19,229,050 | $6,397,950,795 | +$147,523,371 | $332.74 | 349 |
| 2019 Q2 | 18,689,418 | $5,839,484,014 | -$162,235,104 | $312.59 | 326 |
| 2019 Q1 | 19,427,855 | $5,938,774,395 | +$26,520,823 | $305.68 | 340 |
| 2018 Q4 | 19,085,794 | $4,431,741,573 | -$63,728,134 | $232.22 | 319 |
| 2018 Q3 | 18,915,230 | $5,919,673,702 | +$12,116,363 | $312.99 | 336 |
| 2018 Q2 | 19,093,330 | $5,509,358,014 | -$50,946,485 | $288.54 | 321 |
| 2018 Q1 | 19,293,335 | $4,824,798,687 | +$32,427,500 | $250.08 | 310 |
| 2017 Q4 | 19,199,238 | $4,582,088,596 | +$7,406,998 | $238.67 | 297 |
| 2017 Q3 | 19,186,971 | $4,263,280,405 | +$85,006,470 | $222.22 | 268 |
| 2017 Q2 | 18,803,522 | $4,255,482,844 | -$40,486,301 | $226.31 | 274 |
| 2017 Q1 | 19,038,767 | $3,796,416,375 | +$212,751,881 | $199.34 | 270 |
| 2016 Q4 | 19,724,001 | $3,595,615,783 | +$105,010,927 | $182.28 | 255 |
| 2016 Q3 | 19,083,435 | $3,125,213,054 | +$688,135 | $163.81 | 235 |
| 2016 Q2 | 19,112,947 | $2,733,970,889 | +$70,361,251 | $143.02 | 233 |
| 2016 Q1 | 18,593,481 | $2,543,249,593 | -$28,652,347 | $136.72 | 227 |
| 2015 Q4 | 18,814,885 | $2,609,135,116 | -$16,649,584 | $138.66 | 237 |
| 2015 Q3 | 18,827,519 | $2,528,738,077 | +$40,719,556 | $134.31 | 241 |
| 2015 Q2 | 18,681,380 | $2,812,961,739 | -$21,728,607 | $150.61 | 221 |
| 2015 Q1 | 18,867,726 | $2,549,214,332 | +$11,434,191 | $135.18 | 216 |
| 2014 Q4 | 18,830,474 | $2,270,334,287 | +$17,595,205 | $120.56 | 213 |
| 2014 Q3 | 18,587,460 | $2,107,510,068 | +$35,450,758 | $113.40 | 198 |
| 2014 Q2 | 18,276,691 | $2,186,453,716 | +$17,844,667 | $119.71 | 201 |
| 2014 Q1 | 18,092,627 | $2,316,027,490 | -$19,637,838 | $128.12 | 189 |