BIO

Bio-rad Laboratories-a

Latest period2026 - Q1Total superinvestors390

Top 10 Superinvestors by Shares Owned

This chart shows the top 10 superinvestors based on the number of shares they owned in 2025-Q4 and 2026-Q1. According to the most recent SEC 13F filing, 390 superinvestors own shares of Bio-rad Laboratories-a (BIO), although recent data may remain incomplete due to pending filings.

Quarter-over-Quarter Change (%)

This chart highlights the quarter-over-quarter change (%) in the number of superinvestors holding Bio-rad Laboratories-a (BIO), the total shares they held, and the total reported dollar value. It gives a clear view of whether there is ongoing momentum. The dotted lines at the top and bottom adjust longer bars to keep smaller data points visible for better comparison.

Superinvestors' Activity (%) Over the Last 4 Quarters

This chart shows superinvestors' activity with Bio-rad Laboratories-a (BIO) over the last four quarters, highlighting the percentage of investors who added, increased, decreased, held, or exited their positions, revealing shifts in sentiment over time.

Superinvestors' Past Actions

This chart displays superinvestors' past actions with Bio-rad Laboratories-a (BIO) over the last 10 years (40 quarters), helping to visualize the collective momentum and investment trends over time.

Superinvestors ownership

SuperinvestorPortfolio %Reported Value
Jean-Marie Eveillard / David O'Connor@First Eagle Investment Management, Llc
Recent Activity
Increased 1.26%
1.23%
$725.523M
2.603M shares@ 278.76 avg price
Spencer Fleming@Blackrock, Inc.
Recent Activity
Decreased -0.05%
0.01%
$468.317M
1.68M shares@ 278.75 avg price
Selwyn Notelovitz@Dimensional Fund Advisors Lp
Recent Activity
Increased 1.14%
0.07%
$303.637M
1.089M shares@ 278.74 avg price
Christine M. Buchanan@Vanguard Capital Management Llc
Recent Activity
New Position
0.01%
$231.687M
831,165 shares@ 278.76 avg price
Christine M. Buchanan@Vanguard Portfolio Management Llc
Recent Activity
New Position
0.02%
$231.136M
829,186 shares@ 278.76 avg price
John Rogers / James Prescott@Ariel Investments, Llc
Recent Activity
Increased 2.79%
2.46%
$219.087M
785,961 shares@ 278.76 avg price
James M. Wilson@Earnest Partners Llc
Recent Activity
Decreased -2.46%
0.68%
$164.109M
588,731 shares@ 278.75 avg price
ELIZABETH SCHAEFER@State Street Corp
Recent Activity
Decreased 0%
0.01%
$155.98M
559,570 shares@ 278.76 avg price
Alan N. Berro@Capital World Investors
Recent Activity
New Position
0.02%
$125.438M
450,000 shares@ 278.75 avg price
Andres Ortiz@Bank Of America Corp De
Recent Activity
Decreased -0.11%
0.01%
$124.032M
444,957 shares@ 278.76 avg price

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