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BIO · Bio-Rad Laboratories, Inc.

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$381.76 +1.73 (+0.46%) At close · Aug 24
Market Cap
$10.16B
Shares
26.74M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 398
Total Value: $5,707,413,518
Total Shares: 19,438,742

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 398 13F filers · Δ vs Mar 31, 2026
Top Holder
13.4%
Sep 2023 → Jun 2026 · range 8.8% – 13.4%
+3.2 pts
Top 5
35.5%
Sep 2023 → Jun 2026 · range 27.8% – 42.1%
+5.2 pts
Top 10
50.5%
Sep 2023 → Jun 2026 · range 40.7% – 57.0%
+6.4 pts
HHI
409
Sep 2023 → Jun 2026 · range 269 – 487
Broadly held+103

Quarterly Activity

vs Mar 31, 2026
New
67
Increased
112
Decreased
151
Sold Out
59
Unchanged
68
Holder count: +8
Institutional value: +24.4%
Shares held: +18.1%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 404
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 12208 CUSIP 090572207 13F (30d) 359 filings 329 filers Visit website Investor relations