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BIO · Bio-Rad Laboratories, Inc. · Holdings

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$366.16 +5.76 (+1.60%)
Market Cap
$9.72B
Shares
26.74M
Volume · Oct 9 139K Avg daily vol (3M) 277.48K

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.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 401
Total Value: $5,716,490,277
Total Shares: 19,468,780
Showing 1–100 of 408 holdings by value · page 1 of 5

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 402 13F filers
Top Holder
13.4%
Sep 2023 → Jun 2026 · range 9.9% – 13.4%
of institutional value
Top 5
35.4%
Sep 2023 → Jun 2026 · range 33.1% – 41.5%
of institutional value
Top 10
50.4%
Sep 2023 → Jun 2026 · range 45.1% – 56.3%
of institutional value
HHI
408
Sep 2023 → Jun 2026 · range 355 – 476
Broadly held
Showing 100 of 408
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 12208 CUSIP 090572207 13F (30d) 20 filings 15 filers Visit website Investor relations