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Data from SEC EDGAR filings: company financials and 13F holdings.

Disclaimer: QW Research is provided for informational and educational purposes only and is not investment advice, a recommendation, or an offer to buy or sell any security. Data is derived from public SEC 13F filings and may be incomplete, delayed, or inaccurate. Do not make investment decisions based on this content. QW Research does not share in any profits and accepts no liability for any losses or decisions made using this information. Past performance does not predict future results.

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BUWA — Fundamentals, Valuation & Ownership | QW Research

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Bio-Rad Laboratories, Inc. (BUWA)

Highly Crowded

Held by 376 of 5,944 reporting institutions (96th percentile) — extremely crowded.

Data as of Q1 2026

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Institutional Ownership

—

of shares outstanding · 376 funds hold it

Ownership Change

—

vs last quarter

Crowding

96ᵗʰ pctl

more crowded than 96% of tracked stocks

Institutional Value

$5.3B

total position value across all 13F filers

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Institutional Holders

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Buy / Sell Volume by Quarter

Total shares institutions bought (green) vs sold (red) each quarter across all holders.

Inferred from quarter-over-quarter change in each fund's 13F position (new stakes count as buys, exits as sells). Not tick-level trades.

No sector peer set for this ticker (missing sector classification, or too few peers with collected financials).

No collected fundamentals to build a valuation model.

No collected fundamentals for a quality & risk analysis.

No collected fundamentals for a dividends & returns analysis.

No collected fundamentals for a capital-allocation analysis.

No collected fundamentals for a debt & leverage analysis.

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Institutional Trends (8 Quarters)

No trend data available for this metric.

Crowding AnalysisHighly Crowded

Holders376of 5,944

Avg: 68

Uncrowded96th percentileCrowded

Institutional Activity

Buy/Sell Ratio1.21x

89th percentile

204 buying169 selling

+60

New

-68

Closed

+569K

Net shares

Ownership Concentration

Top 5: 35.7%Top 10: 50.0%

First Eagle Investment Management,13.2%

DIMENSIONAL FUND ADVISORS5.5%

VANGUARD CAPITAL MANAGEMENT4.2%

VANGUARD PORTFOLIO MANAGEMENT4.2%

Others (371)64.3%

Crowding AnalysisHighly Crowded

Holders376of 5,944

Avg: 68

Uncrowded96th percentileCrowded

Institutional Activity

Buy/Sell Ratio1.21x

89th percentile

204 buying169 selling

+60

New

-68

Closed

+569K

Net shares

Ownership Concentration

Top 5: 35.7%Top 10: 50.0%

First Eagle Investment Management,13.2%

DIMENSIONAL FUND ADVISORS5.5%

VANGUARD CAPITAL MANAGEMENT4.2%

VANGUARD PORTFOLIO MANAGEMENT4.2%

Others (371)64.3%

Conviction-Weighted Ownership

Median weight: 0.01%Avg weight: 0.45%Max: 2.45%High conviction (>1%): 2

First Eagle Investment Management,

DIMENSIONAL FUND ADVISORS

VANGUARD CAPITAL MANAGEMENT

VANGUARD PORTFOLIO MANAGEMENT

ARIEL INVESTMENTS,

EARNEST PARTNERS

Capital World Investors

BANK OF AMERICA

Ownership Map

Top 40 institutional holders — bubble size is position value, color is the move since last quarter. Hover any holder for detail.

Size by

Drag any bubble to rearrange · size = dollar value of the position

Ownership Map

Top 40 institutional holders — bubble size is position value, color is the move since last quarter. Hover any holder for detail.

Size by

Drag any bubble to rearrange · size = dollar value of the position

Not enough quarter-end price history for a performance view. (Run collect_prices.py for this ticker.)