Bio-Rad Laboratories Class B
BIO.B
5 hedge funds and large institutions have $809K invested in Bio-Rad Laboratories Class B in 2025 Q3 according to their latest regulatory filings, with 1 funds opening new positions, 0 increasing their positions, reducing their positions, and 1 closing their positions.
56% more capital invested
Capital invested by funds: $520K → $809K (+$289K)
0.01% more ownership
Funds ownership: 0.04% → 0.06% (+0.01%)
0% more funds holding
Funds holding: 5 → 5 (0)
0% more first-time investments, than exits
New positions opened: 1 | Existing positions closed: 1
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Focus Partners Wealth
Boston,
Massachusetts
|
+$200K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$716 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
CL
1
CSS LLC
Chicago,
Illinois
| $309K | – | – | – |
|
|
2
Focus Partners Wealth
Boston,
Massachusetts
| $209K | +$200K | +760 | New |
|
3
Morgan Stanley
New York
| $195K | – | – | – |
|
4
Wells Fargo
San Francisco,
California
| $48.4K | – | – | – |
|
|
WT
5
Whittier Trust
South Pasadena,
California
| $48K | – | – | – |
|
|
6
UBS Group
Zurich,
Switzerland
| – | -$716 | -3 | Closed |
|
BIO.B Hedge Fund Activity: Q3 2025 in Review
5 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Bio-Rad Laboratories Class B (BIO.B) for Q3 2025, worth a combined $809K — up 56% from $520K a quarter earlier.
Fund positioning in BIO.B was balanced in Q3 2025: 1 fund opened new positions, 1 closed out, 0 added to existing stakes and 0 trimmed.
The largest buyer was Focus Partners Wealth, opening a new position worth an estimated $200K. The largest seller was UBS Group, exiting entirely with an estimated $716 sold.
- 5 institutional investors held Bio-Rad Laboratories Class B (BIO.B) as of Q3 2025, unchanged from Q2 2025.
- Funds reported $809K of Bio-Rad Laboratories Class B stock for Q3 2025, up 56% quarter-over-quarter.
- 1 fund opened new Bio-Rad Laboratories Class B positions in Q3 2025 and 1 closed out, a net change of 0 holders.
- The largest Bio-Rad Laboratories Class B buyer in Q3 2025 was Focus Partners Wealth, an estimated $200K added.
- The largest Bio-Rad Laboratories Class B seller in Q3 2025 was UBS Group, an estimated $716 sold.
Based on aggregated 13F filings for Q3 2025.