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BIO Insider Trading

Insider Ownership Percentage: 30.34%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $214,326.00

Bio-Rad Laboratories Insider Trading History Chart

This chart shows the insider buying and selling history at Bio-Rad Laboratories by year and by quarter.

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Bio-Rad Laboratories Share Price & Price History

Current Price: $282.81
Price Change: ▲ Price Increase of +0.368 (0.13%)
As of 06/18/2026 03:59 PM ET

This chart shows the closing price history over time for BIO up to the past year.

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Days: 30 | 90 | 365

Bio-Rad Laboratories Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/6/2025James BarryEVPSell700$306.18$214,326.00510View SEC Filing Icon  
9/6/2024Andrew J LastCOOSell3,000$329.94$989,820.007,559View SEC Filing Icon  
9/4/2024James BarryEVPSell623$330.49$205,895.27147View SEC Filing Icon  
6/13/2024Michael CrowleyEVPSell369$281.91$104,024.796,573View SEC Filing Icon  
2/27/2024Michael CrowleyEVPSell3,000$336.00$1,008,000.006,942View SEC Filing Icon  
12/12/2023Dara WrightEVPSell1,200$299.16$358,992.001,499View SEC Filing Icon  
11/28/2023Michael CrowleyEVPSell642$305.10$195,874.206,942View SEC Filing Icon  
8/30/2023Timothy S ErnstEVPSell2,350$395.60$929,660.002,416View SEC Filing Icon  
8/23/2023Timothy S ErnstEVPSell300$384.69$115,407.002,416View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Bio-Rad Laboratories (NYSE:BIO)

65.24% of Bio-Rad Laboratories stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at BIO by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Bio-Rad Laboratories Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/16/2026Empowered Funds LLC2,168$0.60M0.0%+38.0%0.008%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE444,957$124.03M0.0%-0.1%1.663%Search for SEC Filing on Google Icon
5/18/2026Amundi38,778$10.81M0.0%+1,763.4%0.145%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System21,932$6.11M0.0%+22.9%0.082%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada17,198$4.79M0.0%+16.9%0.064%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC2,168$0.60M0.0%+38.0%0.008%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company 99,720$27.80M0.0%-18.6%0.373%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP33,650$9.38M0.0%-7.1%0.126%Search for SEC Filing on Google Icon
5/16/2026Hound Partners LLC97,724$27.24M3.4%+125.9%0.365%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC18,290$5.10M0.0%N/A0.068%Search for SEC Filing on Google Icon
5/14/2026Gabelli Funds LLC28,400$7.92M0.1%-16.0%0.106%Search for SEC Filing on Google Icon
5/14/2026Public Employees Retirement System of Ohio5,698$1.59M0.0%-2.8%0.021%Search for SEC Filing on Google Icon
5/14/2026Arrowstreet Capital Limited Partnership15,743$4.39M0.0%N/A0.059%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.287,912$80.26M0.1%-1.4%1.076%Search for SEC Filing on Google Icon
5/14/2026Lido Advisors LLC808$0.23M0.0%N/A0.003%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers7,596$2.12M0.0%+0.6%0.028%Search for SEC Filing on Google Icon
5/13/2026First Citizens Bank & Trust Co.1,434$0.40M0.0%N/A0.005%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP1,522$0.42M0.0%-97.3%0.006%Search for SEC Filing on Google Icon
5/12/2026Quantedge Capital Pte Ltd6,940$1.94M1.1%-50.9%0.026%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.2,441$0.68M0.0%-25.2%0.009%Search for SEC Filing on Google Icon
5/7/2026Hollencrest Capital Management100$28K0.0%N/A0.000%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP1,089,323$303.64M0.1%+1.1%4.036%Search for SEC Filing on Google Icon
5/7/2026Koss Olinger Consulting LLC3,440$0.96M0.1%-1.4%0.013%Search for SEC Filing on Google Icon
5/6/2026California Public Employees Retirement System35,348$9.85M0.0%+1.2%0.131%Search for SEC Filing on Google Icon
5/6/2026Assetmark Inc.38,989$10.87M0.0%+19.0%0.144%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC85,965$23.93M0.0%-33.5%0.319%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp126,856$35.36M0.0%-1.9%0.470%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System4,400$1.23M0.0%+2.3%0.016%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.40,614$11.32M0.0%+3.8%0.150%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp12,932$3.61M0.0%+91.4%0.048%Search for SEC Filing on Google Icon
5/1/2026Sequoia Financial Advisors LLC750$0.21M0.0%N/A0.003%Search for SEC Filing on Google Icon
5/1/2026Kornitzer Capital Management Inc. KS7,726$2.15M0.0%+17.0%0.029%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC15,585$4.31M0.0%N/A0.058%Search for SEC Filing on Google Icon
4/30/2026Kestra Advisory Services LLC1,036$0.29M0.0%+19.2%0.004%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund3,746$1.04M0.0%+2.1%0.014%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System18,372$5.12M0.0%+5.0%0.068%Search for SEC Filing on Google Icon
4/25/2026Boston Trust Walden Corp93,495$26.06M0.2%+4.1%0.346%Search for SEC Filing on Google Icon
4/23/2026Inspire Investing LLC1,217$0.34M0.0%+12.4%0.005%Search for SEC Filing on Google Icon
4/22/2026Patriot Financial Group Insurance Agency LLC2,532$0.71M0.0%N/A0.009%Search for SEC Filing on Google Icon
4/22/2026Skylands Capital LLC5,650$1.58M0.2%+56.9%0.021%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA2,920$0.81M0.0%+13.2%0.011%Search for SEC Filing on Google Icon
4/22/2026Sterling Capital Management LLC621$0.17M0.0%-43.3%0.002%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System5,300$1.48M0.0%N/A0.020%Search for SEC Filing on Google Icon
4/20/2026William B. Walkup & Associates Inc.1,902$0.53M0.3%+2.6%0.007%Search for SEC Filing on Google Icon
4/20/2026Blue Trust Inc.1,553$0.43M0.0%+8.6%0.006%Search for SEC Filing on Google Icon
4/20/2026OP Asset Management Ltd6,552$1.83M0.0%N/A0.024%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.147,834$41.21M0.1%+6,586.3%0.548%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC66,985$18.67M0.0%+253.3%0.248%Search for SEC Filing on Google Icon
4/16/2026Diversified Trust Co4,897$1.37M0.0%-39.8%0.018%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.1,047$0.32M0.0%-32.4%0.004%Search for SEC Filing on Google Icon
3/9/2026Corient Private Wealth LLC1,864$0.57M0.0%+30.3%0.007%Search for SEC Filing on Google Icon
3/4/2026Rehmann Capital Advisory Group660$0.20M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/24/2026Pacer Advisors Inc.2,895$0.88M0.0%-21.8%0.011%Search for SEC Filing on Google Icon
2/23/2026Virtu Financial LLC2,218$0.67M0.0%N/A0.008%Search for SEC Filing on Google Icon
2/19/2026T. Rowe Price Investment Management Inc.58,633$17.77M0.0%-10.1%0.217%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.35,060$10.62M0.0%-2.4%0.130%Search for SEC Filing on Google Icon
2/19/2026Corient Private Wealth LLC66,792$20.24M0.0%+4,570.8%0.248%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC2,943$0.89M0.0%N/A0.011%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury3,796$1.12M0.0%+35.1%0.014%Search for SEC Filing on Google Icon
2/18/2026SkyView Investment Advisors LLC1,948$0.59M0.1%-2.6%0.007%Search for SEC Filing on Google Icon
2/18/2026Fuller & Thaler Asset Management Inc.259,577$78.65M0.3%+9.1%0.962%Search for SEC Filing on Google Icon
2/18/2026Empowered Funds LLC1,571$0.48M0.0%+5.2%0.006%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd16,108$4.88M0.1%N/A0.060%Search for SEC Filing on Google Icon
2/18/2026one8zero8 LLC674$0.20M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/18/2026Moore Capital Management LP50,000$15.15M0.2%-9.1%0.185%Search for SEC Filing on Google Icon
2/18/2026Man Group plc6,251$1.89M0.0%-81.0%0.023%Search for SEC Filing on Google Icon
2/18/2026Inspire Investing LLC1,083$0.33M0.0%-4.8%0.004%Search for SEC Filing on Google Icon
2/18/2026Gotham Asset Management LLC117,018$35.46M0.1%-6.1%0.434%Search for SEC Filing on Google Icon
2/18/2026First Manhattan CO. LLC.1,915$0.58M0.0%-9.5%0.007%Search for SEC Filing on Google Icon
2/18/2026AYAL Capital Advisors Ltd20,000$6.06M2.1%+14.3%0.074%Search for SEC Filing on Google Icon
2/18/2026Align Financial LLC9,999$3.03M0.0%N/A0.037%Search for SEC Filing on Google Icon
2/17/2026Freestone Grove Partners LP110,524$33.49M0.2%N/A0.410%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC1,971$0.60M0.0%-13.2%0.007%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC40,195$12.18M0.0%+25.7%0.149%Search for SEC Filing on Google Icon
2/17/2026Hound Partners LLC43,268$13.11M1.8%-58.4%0.160%Search for SEC Filing on Google Icon
2/17/2026Cetera Investment Advisers7,548$2.29M0.0%-6.4%0.028%Search for SEC Filing on Google Icon
2/17/2026Quantedge Capital Pte Ltd14,140$4.28M2.0%-45.2%0.052%Search for SEC Filing on Google Icon
2/17/2026Veritas Asset Management LLP543,335$164.63M1.7%-35.6%2.014%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD76,271$23.11M0.0%+1.1%0.283%Search for SEC Filing on Google Icon
2/17/2026T. Rowe Price Investment Management Inc.2,220$0.67M0.0%-96.6%0.008%Search for SEC Filing on Google Icon
2/17/2026Osaic Holdings Inc.3,304$1M0.0%-6.8%0.012%Search for SEC Filing on Google Icon
2/17/2026Public Employees Retirement System of Ohio5,864$1.78M0.0%-4.5%0.022%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System17,850$5.41M0.0%-0.4%0.066%Search for SEC Filing on Google Icon
2/17/2026QVIDTVM Management LLC83,483$25.30M28.6%-34.0%0.309%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.4,426$1.34M0.0%-1.1%0.016%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board13,648$4.14M0.0%-14.0%0.051%Search for SEC Filing on Google Icon
2/17/2026&PARTNERS2,263$0.69M0.0%-4.4%0.008%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP4,293$1.30M0.0%-81.7%0.016%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada14,711$4.46M0.0%-91.6%0.055%Search for SEC Filing on Google Icon
2/17/2026William B. Walkup & Associates Inc.1,854$0.56M0.3%-2.5%0.007%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC5,425$1.64M0.0%-90.1%0.020%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC3,901$1.18M0.0%-38.6%0.014%Search for SEC Filing on Google Icon
2/16/2026MML Investors Services LLC10,425$3.16M0.0%-0.4%0.039%Search for SEC Filing on Google Icon
2/16/2026Dixon Mitchell Investment Counsel Inc.549$0.17M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/16/2026Arax Advisory Partners742$0.23M0.0%-64.2%0.003%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC24,494$7.42M0.0%-25.0%0.091%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP11,560$3.50M0.0%-8.4%0.043%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 122,574$37.15M0.0%+14.2%0.454%Search for SEC Filing on Google Icon
2/13/2026CANADA LIFE ASSURANCE Co10,579$3.20M0.0%-26.4%0.039%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp4,355$1.32M0.0%+1.9%0.016%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Bio-Rad Laboratories logo
Bio-Rad Laboratories, Inc. manufactures and distributes life science research and clinical diagnostic products in the United States, Europe, Asia, Canada, and Latin America. It operates through two segments, Life Science and Clinical Diagnostics. The company develops, manufactures, and markets instruments, systems, reagents, and consumables to separate, purify, characterize, and quantitate biological materials such as cells, proteins, and nucleic acids for proteomics, genomics, biopharmaceutical production, cellular biology, and food safety markets. It also designs, manufactures, markets, and supports test systems, informatics systems, test kits, and specialized quality controls for hospitals, diagnostic reference, transfusion, and physician office laboratories. The company offers its products through its direct sales force, as well as through distributors, agents, brokers, and resellers. Bio-Rad Laboratories, Inc. was founded in 1952 and is headquartered in Hercules, California.
Read More on Bio-Rad Laboratories

Today's Range

Now: $282.81
Low: $280.48
High: $285.75

50 Day Range

MA: $284.51
Low: $241.62
High: $318.41

52 Week Range

Now: $282.81
Low: $228.40
High: $343.12

Volume

398,185 shs

Average Volume

350,113 shs

Market Capitalization

$7.57 billion

P/E Ratio

46.59

Dividend Yield

N/A

Beta

1.08

Who are the company insiders with the largest holdings of Bio-Rad Laboratories?

Bio-Rad Laboratories' top insider investors include:
  1. John Hertia (EVP)
  2. Giovanni Magni (EVP)
  3. Andrew J Last (COO)
  4. Christine A Tsingos (CFO)
  5. Michael Crowley (EVP)
  6. Annette Tumolo (EVP)
  7. Timothy S Ernst (EVP)
  8. Dara Wright (EVP)
  9. James Barry (EVP)
  10. Ajit Ramalingam (CAO)
Learn More about top insider investors at Bio-Rad Laboratories.

Who are the major institutional investors of Bio-Rad Laboratories?

Bio-Rad Laboratories' top institutional investors include:
  1. Dimensional Fund Advisors LP — 4.04%
  2. Bank of America Corp DE — 1.66%
  3. Sei Investments Co. — 1.08%
  4. Assenagon Asset Management S.A. — 0.55%
  5. Bank of New York Mellon Corp — 0.47%
  6. The Manufacturers Life Insurance Company — 0.37%
Learn More about top institutional investors of Bio-Rad Laboratories stock.

Which institutional investors are selling Bio-Rad Laboratories stock?

In the last quarter, BIO stock was sold by these institutional investors:
  1. First Trust Advisors LP
  2. Allspring Global Investments Holdings LLC
  3. The Manufacturers Life Insurance Company
  4. Quantedge Capital Pte Ltd
  5. Gabelli Funds LLC
  6. Sei Investments Co.
  7. Diversified Trust Co
  8. Quantinno Capital Management LP

Which institutional investors are buying Bio-Rad Laboratories stock?

In the last quarter, BIO stock was bought by institutional investors including:
  1. Assenagon Asset Management S.A.
  2. Hound Partners LLC
  3. SG Americas Securities LLC
  4. Amundi
  5. Lazard Asset Management LLC
  6. Arrowstreet Capital Limited Partnership
  7. Hsbc Holdings PLC
  8. Dimensional Fund Advisors LP

Bio-Rad Laboratories Active Insiders

Ilan Daskal
Ilan Daskal (Age 60)
CFO
Ajit Ramalingam
Ajit Ramalingam (Age 53)
CAO
Michael Crowley
Michael Crowley
EVP
Timothy S. Ernst
Timothy S. Ernst (Age 66)
EVP
Annette Tumolo
Annette Tumolo (Age 71)
EVP
Giovanni Magni
Giovanni Magni
EVP
James Barry
James Barry
EVP
Ronald W. Hutton
Ronald W. Hutton
VP