Bio-Rad Laboratories Class BBIO.B

13F holders, Q1 2026 (March 31)
7holders +1
1new positions
0sold out
$278.07avg. 13F price*

At the end of Q1 2026, 7 institutions reported holding Bio-Rad Laboratories Class B (BIO.B) in their 13F filings, up 1 from Q4 2025. 1 opened new positions and 0 sold out. The largest holders were Flow Traders U.S. LLC ($274K), CSS LLC ($272K) and Focus Partners Wealth ($211K).

Company
Bio-Rad Laboratories Class B
CUSIP
090572108
Latest filing quarter
Q2 2026

History

Number of 13F holders

02468 Q1 2024: 7Q1 2024Q2 2024: 8Q2 2024Q3 2024: 6Q3 2024Q4 2024: 8Q4 2024Q1 2025: 5Q1 2025Q2 2025: 5Q2 2025Q3 2025: 5Q3 2025Q4 2025: 6Q4 2025Q1 2026: 7Q1 2026Q2 2026: 5Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions1$274K
Exits0$0

All 13F filers, Q4 2025 → Q1 2026: 1,005 shares bought and 61 shares sold, net +944 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 7 holders

Flow Traders U.S. LLC 0.01% New 985 $274K
CSS LLC 0.04% Reduce -5.9% 977 $272K
Focus Partners Wealth 0.00% No change 760 $211K
Morgan Stanley 0.00% Add +2.1% 712 $198K
Wells Fargo & Company 0.00% No change 170 $47K
Whittier Trust Co. 0.00% No change 160 $44K
UBS Group AG 0.00% Add +62.5% 13 $4K

"% of holder's portfolio" is BIO.B's weight in each manager's 13F, not the share of Bio-Rad Laboratories Class B the manager owns.