Bio-Rad Laboratories Class BBIO.B

13F holders, Q4 2025 (December 31)
6holders +1
1new positions
0sold out
$303.88avg. 13F price*

At the end of Q4 2025, 6 institutions reported holding Bio-Rad Laboratories Class B (BIO.B) in their 13F filings, up 1 from Q3 2025. 1 opened new positions and 0 sold out. The largest holders were CSS LLC ($319K), Focus Partners Wealth ($227K) and Morgan Stanley ($208K).

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 Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions1$2K
Exits0$0

All 13F filers, Q3 2025 → Q4 2025: 8 shares bought and 69 shares sold, net −61 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 6 holders

CSS LLC 0.05% Reduce -5.0% 1,038 $319K
Focus Partners Wealth 0.00% No change 760 $227K
Morgan Stanley 0.00% Reduce -2.1% 697 $208K
Wells Fargo & Company 0.00% No change 170 $53K
Whittier Trust Co. 0.00% No change 160 $52K
UBS Group AG 0.00% New 8 $2K

"% 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.