Bio-Rad Laboratories Class A
394 hedge funds and large institutions have $5.57B invested in Bio-Rad Laboratories Class A in 2026 Q1 according to their latest regulatory filings, with 63 funds opening new positions, 143 increasing their positions, 99 reducing their positions, and 61 closing their positions.
999% more call options, than puts
Call options by funds: $8.59M | Put options by funds: $781K
44% more repeat investments, than reductions
Existing positions increased: 143 | Existing positions reduced: 99
25% more funds holding in top 10
Funds holding in top 10: 4 → 5 (+1)
2.58% more ownership
Funds ownership: 88.59% → 91.17% (+2.6%)
3% more first-time investments, than exits
New positions opened: 63 | Existing positions closed: 61
1% less funds holding
Funds holding: 398 → 394 (-4)
5% less capital invested
Capital invested by funds: $5.88B → $5.57B (-$307M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital World Investors
Los Angeles,
California
|
+$130M |
| 2 |
Barclays
London,
United Kingdom
|
+$73.2M |
| 3 |
Nomura Holdings
Tokyo,
Japan
|
+$62.6M |
| 4 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
+$41.9M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$40.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
VAM
Veritas Asset Management
London,
United Kingdom
|
-$165M |
| 2 |
Fuller & Thaler Asset Management
San Mateo,
California
|
-$78.6M |
| 3 |
Boston Partners
Boston,
Massachusetts
|
-$69M |
| 4 |
Westfield Capital Management
Boston,
Massachusetts
|
-$50M |
| 5 |
Capital Research Global Investors
Los Angeles,
California
|
-$31.4M |
BIO Hedge Fund Activity: Q1 2026 in Review
394 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Bio-Rad Laboratories Class A (BIO) for Q1 2026, worth a combined $5.57B — down 5.2% from $5.88B a quarter earlier.
Buyers outnumbered sellers: 63 funds opened new BIO positions and 61 closed out — a net gain of 2 holders — while 143 added to existing stakes and 99 trimmed.
The largest buyer was Capital World Investors, opening a new position worth an estimated $130M. The largest seller was Veritas Asset Management, exiting entirely with an estimated $165M sold.
- 394 institutional investors held Bio-Rad Laboratories Class A (BIO) as of Q1 2026, down from 398 in Q4 2025.
- Funds reported $5.57B of Bio-Rad Laboratories Class A stock for Q1 2026, down 5.2% quarter-over-quarter.
- 63 funds opened new Bio-Rad Laboratories Class A positions in Q1 2026 and 61 closed out, a net change of +2 holders.
- The largest Bio-Rad Laboratories Class A buyer in Q1 2026 was Capital World Investors, an estimated $130M added.
- The largest Bio-Rad Laboratories Class A seller in Q1 2026 was Veritas Asset Management, an estimated $165M sold.
Based on aggregated 13F filings for Q1 2026.