Security record · archived quarter
BIO
Bio-Rad Laboratories, Inc. · Healthcare · Medical - Devices
122Tracked holders
+9Δ holders
14.35MShares held
$4.00BReported value
+14New positions
−6Exits
Momentum inputs (comparable managers):
holder breadth +8.0% ·
share flow +11.6% ·
net new positions +6.6%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 194.30K | $73.36M | n/a | n/a |
| Q2 2026 | 117 | -3 | 14.28M | $4.19B | +7 | −9 |
| Q1 2026 | 122 | +9 | 14.35M | $4.00B | +14 | −6 |
| Q4 2025 | 113 | -3 | 13.80M | $4.16B | +1 | −3 |
| Q3 2025 | 20 | +2 | 5.24M | $1.47B | +2 | −1 |
| Q2 2025 | 16 | -1 | 5.26M | $1.27B | +1 | −2 |
| Q1 2025 | 14 | -2 | 1.87M | $455.90M | n/a | −2 |
| Q4 2024 | 16 | +1 | 2.05M | $672.31M | +1 | n/a |
| Q3 2024 | 14 | +2 | 1.60M | $536.26M | +3 | −1 |
| Q2 2024 | 12 | n/a | 1.03M | $281.62M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | First Eagle Investment Management… | 2.60M | +1.3% | $725.52M | 1.2% | ▲ Add | 2 | SEC ↗ ×2 |
| 2 | BlackRock ✦ (passive) | 1.68M | -0.1% | $468.32M | 0.0% | ▼ Trim | 4 | SEC ↗ ×16 |
| 3 | Dimensional Fund Advisors Lp | 1.09M | +1.1% | $303.64M | 0.1% | ▲ Add | 2 | SEC ↗ ×5 |
| 4 | Vanguard Capital Management Llc | 831.16K | n/a | $231.69M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | State Street Global Advisors ✦ (passive) | 559.57K | 0.0% | $155.98M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 6 | Capital World Investors ✦ | 450.00K | New | $125.44M | 0.0% | New | 1 | SEC ↗ |
| 7 | Bank Of America Corp /De/ | 444.96K | -0.1% | $124.03M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 8 | UBS AM, a distinct business unit of… | 426.04K | +7.8% | $118.76M | 0.0% | ▲ Add | 2 | SEC ↗ ×11 |
| 9 | Massachusetts Financial Services Co… | 396.15K | -0.8% | $110.42M | 0.0% | ▼ Trim | 2 | SEC ↗ ×6 |
| 10 | Capital Research Global Investors | 385.58K | -22.0% | $107.48M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | Geode Capital Management ✦ (passive) | 364.68K | +7.8% | $101.68M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 12 | UBS Group AG | 354.37K | +63.9% | $98.78M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 13 | Sei Investments Co | 287.91K | -1.4% | $80.26M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 14 | Barclays Plc | 278.83K | +1038.4% | $77.73M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 15 | Morgan Stanley ✦ | 273.93K | +47.0% | $76.36M | 0.0% | ▲ Add | 3 | SEC ↗ ×13 |
| 16 | Parnassus Investments, Llc | 254.31K | +0.9% | $70.89M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 17 | Northern Trust Corp | 218.50K | +1.1% | $60.91M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 18 | Nomura Holdings Inc | 217.34K | New | $60.58M | 0.5% | New | 1 | SEC ↗ |
| 19 | Charles Schwab Investment… | 196.56K | +9.0% | $54.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Franklin Resources Inc | 170.35K | +24.1% | $47.49M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 21 | Gotham Asset Management ✦ | 152.38K | +30.2% | $42.48M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 22 | Citadel Advisors ✦ | 148.67K | +1468.2% | $41.44M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 23 | Assenagon Asset Management S.A. | 147.83K | +6586.3% | $41.21M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 24 | Bank of New York Mellon Corp | 126.86K | -1.9% | $35.36M | 0.0% | ▼ Trim | 2 | SEC ↗ ×13 |
| 25 | CIBC Bancorp USA Inc. | 120.12K | n/a | $33.48M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 26 | Fisher Asset Management ✦ | 118.68K | -9.5% | $33.08M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 27 | Allianz Asset Management GmbH | 110.24K | 0.0% | $30.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Federated Hermes, Inc. | 109.89K | -3.5% | $30.63M | 0.1% | ▼ Trim | 2 | SEC ↗ ×3 |
| 29 | Envestnet Asset Management Inc | 105.33K | +11.4% | $29.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Manufacturers Life Insurance… | 99.72K | -18.6% | $27.80M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | JPMorgan Chase ✦ | 99.39K | +83.7% | $26.87M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 32 | AQR Capital Management ✦ | 94.55K | +135.2% | $26.03M | 0.0% | ▲ Add | 8 | SEC ↗ ×6 |
| 33 | National Bank Of Canada /Fi/ | 90.00K | New | $25.09M | 0.0% | New | 1 | SEC ↗ |
| 34 | Allspring Global Investments… | 85.97K | -33.5% | $23.93M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 35 | T. Rowe Price ✦ | 74.28K | -2.6% | $20.71M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 36 | Jones Financial Companies Lllp | 71.98K | +5603.3% | $19.10M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 37 | Man Group plc | 67.44K | +978.8% | $18.80M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 38 | Goldman Sachs Group ✦ | 53.04K | +46.4% | $14.78M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 39 | Hrt Financial Lp | 46.56K | New | $12.98M | 0.0% | New | 1 | SEC ↗ |
| 40 | Rhumbline Advisers | 46.04K | +1.4% | $12.83M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 41 | Principal Financial Group Inc | 40.61K | +3.8% | $11.32M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 42 | Assetmark, Inc | 38.99K | +19.0% | $10.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 43 | Amundi | 38.78K | +1763.4% | $10.81M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 44 | Swiss National Bank | 36.88K | 0.0% | $10.28M | 0.0% | Held | 2 | SEC ↗ |
| 45 | Invesco Ltd. | 36.84K | +5.1% | $10.27M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 46 | Legal & General Group Plc | 36.23K | -5.5% | $10.10M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 47 | Raymond James Financial Inc | 35.89K | +8.4% | $10.01M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 48 | California Public Employees… | 35.35K | +1.2% | $9.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Quantinno Capital Management LP | 33.65K | -7.1% | $9.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 50 | Marshall Wace ✦ | 33.22K | +187.3% | $9.26M | 0.0% | ▲ Add | 6 | SEC ↗ ×3 |
| 51 | Nuveen, LLC | 29.42K | +2.5% | $8.20M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 52 | GAMCO Investors ✦ | 26.75K | 0.0% | $7.46M | 0.1% | Held | 8 | SEC ↗ |
| 53 | Alliancebernstein L.P. | 24.49K | +5.2% | $7.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | Bnp Paribas Financial Markets | 26.33K | -63.7% | $7.34M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 55 | California State Teachers… | 21.93K | +22.9% | $6.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Wells Fargo & Company/Mn | 20.67K | +14.2% | $5.76M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 57 | Victory Capital Management Inc | 18.64K | +34.3% | $5.20M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Lazard Asset Management Llc | 18.29K | New | $5.10M | 0.0% | New | 1 | SEC ↗ |
| 59 | Ameriprise Financial Inc | 18.02K | -1.0% | $5.02M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 60 | Royal Bank Of Canada | 17.20K | +16.9% | $4.79M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 61 | LPL Financial LLC | 16.24K | +6.2% | $4.53M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | State Board Of Administration Of… | 16.00K | -14.1% | $4.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Arrowstreet Capital ✦ | 15.74K | New | $4.39M | 0.0% | New | 1 | SEC ↗ |
| 64 | Russell Investments Group, Ltd. | 15.49K | +250.1% | $4.32M | 0.0% | ▲ Add | 2 | SEC ↗ ×9 |
| 65 | Hsbc Holdings Plc | 15.59K | New | $4.31M | 0.0% | New | 1 | SEC ↗ ×4 |
| 66 | Universal- Beteiligungs- und… | 13.34K | +13.3% | $3.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | State Of Wisconsin Investment Board | 13.07K | -4.2% | $3.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Fifth Third Bancorp | 12.93K | +91.4% | $3.60M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | New York State Common Retirement… | 11.88K | 0.0% | $3.31M | 0.0% | Held | 2 | SEC ↗ |
| 70 | Two Sigma Investments ✦ | 10.99K | New | $3.06M | 0.0% | New | 1 | SEC ↗ |
| 71 | Creative Planning | 9.97K | +189.2% | $2.78M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Td Asset Management Inc | 9.78K | +4.2% | $2.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Bank Of Montreal /Can/ | 8.23K | +3.6% | $2.29M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 74 | Boston Partners | 8.19K | -96.7% | $2.28M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | D. E. Shaw & Co. ✦ | 8.14K | +68.6% | $2.27M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 76 | Mml Investors Services, Llc | 7.94K | -23.8% | $2.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Janus Henderson Group Plc | 7.90K | 0.0% | $2.20M | 0.0% | Held | 2 | SEC ↗ |
| 78 | Cetera Investment Advisers | 7.60K | +0.6% | $2.12M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Us Bancorp \De\ | 6.97K | -1.1% | $1.94M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 80 | American Century Companies Inc | 6.41K | +3.5% | $1.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Zurcher Kantonalbank (Zurich… | 6.37K | +18.4% | $1.78M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Cerity Partners LLC | 6.09K | +11.7% | $1.70M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 83 | Tudor Investment Corp Et Al | 5.16K | New | $1.44M | 0.0% | New | 1 | SEC ↗ |
| 84 | HighTower Advisors, LLC | 5.12K | -40.3% | $1.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Citigroup Inc | 5.12K | +18.8% | $1.43M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 86 | Stifel Financial Corp | 4.59K | +5.4% | $1.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 87 | Fidelity (FMR) ✦ | 4.20K | +29.6% | $1.17M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 88 | Truist Financial Corp | 3.56K | -9.1% | $992,629 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 89 | Deutsche Bank Ag\ | 3.47K | +31.4% | $967,820 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 90 | Millennium Management ✦ | 3.29K | -85.2% | $918,202 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 91 | Osaic Holdings, Inc. | 3.22K | -2.4% | $898,685 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 92 | Tidal Investments LLC | 3.12K | +124.8% | $869,143 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 93 | Neuberger Berman Group LLC | 3.03K | +0.6% | $844,334 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 94 | Susquehanna International Group, Llp | 2.94K | New | $818,968 | 0.0% | New | 1 | SEC ↗ |
| 95 | Pacer Advisors, Inc. | 2.92K | +1.0% | $815,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | Pictet Asset Management Holding SA | 2.92K | +13.2% | $813,950 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Pnc Financial Services Group, Inc. | 2.44K | -25.2% | $680,429 | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 98 | DZ BANK AG Deutsche Zentral… | 1.83K | New | $511,227 | 0.0% | New | 1 | SEC ↗ |
| 99 | Rockefeller Capital Management L.P. | 1.77K | +68.9% | $492,831 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 100 | Bridgewater Associates ✦ | 1.68K | New | $469,415 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Capital World Investors | $125.44M | 0.0% |
| Nomura Holdings Inc | $60.58M | 0.5% |
| National Bank Of Canada /Fi/ | $25.09M | 0.0% |
| Hrt Financial Lp | $12.98M | 0.0% |
| Lazard Asset Management Llc | $5.10M | 0.0% |
| Arrowstreet Capital | $4.39M | 0.0% |
| Hsbc Holdings Plc | $4.31M | 0.0% |
| Two Sigma Investments | $3.06M | 0.0% |
| Tudor Investment Corp Et Al | $1.44M | 0.0% |
| Susquehanna International… | $818,968 | 0.0% |
| DZ BANK AG Deutsche Zentral… | $511,227 | 0.0% |
| Bridgewater Associates | $469,415 | 0.0% |
Exited
| Norges Bank | $34.60M | was 0.0% |
| Jane Street Group, Llc | $22.41M | was 0.0% |
| Squarepoint Ops LLC | $1.64M | was 0.0% |
| First Manhattan Co. Llc. | $580,226 | was 0.0% |
| Focus Partners Wealth | $380,960 | was 0.0% |
| Mercer Global Advisors Inc… | $223,910 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 387 holders, 19.87M shares, $5.29B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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