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Bio-Rad Laboratories Class A

383 hedge funds and large institutions have $4.63B invested in Bio-Rad Laboratories Class A in 2025 Q2 according to their latest regulatory filings, with 53 funds opening new positions, 113 increasing their positions, 169 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

25% more funds holding in top 10

Funds holding in top 10: 45 (+1)

1.78% more ownership

Funds ownership: 84.91%86.68% (+1.8%)

2% less capital invested

Capital invested by funds: $4.71B → $4.63B (-$81.7M)

12% less funds holding

Funds holding: 435383 (-52)

33% less repeat investments, than reductions

Existing positions increased: 113 | Existing positions reduced: 169

48% less first-time investments, than exits

New positions opened: 53 | Existing positions closed: 101

67% less call options, than puts

Call options by funds: $2.94M | Put options by funds: $8.81M

Holders
383
Holders Change
-52
Holders Change %
-11.95%
% of All Funds
5.04%
Holding in Top 10
5
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+25%
% of All Funds
0.07%
New
53
Increased
113
Reduced
169
Closed
101
Calls
$2.94M
Puts
$8.81M
Net Calls
-$5.87M
Net Calls Change
-$5.7M
Name Holding Trade Value Shares
Change
Change in
Stake
GKIM
26
GW&K Investment Management
Massachusetts
$35.5M +$788K +3,334 +2%
Westfield Capital Management
27
Westfield Capital Management
Massachusetts
$33.7M +$1.14M +4,834 +4%
Fisher Asset Management
28
Fisher Asset Management
Washington
$33.2M -$1.39M -5,884 -4%
Bank of New York Mellon
29
Bank of New York Mellon
New York
$32.8M -$15.8M -67,000 -33%
Allspring Global Investments
30
Allspring Global Investments
North Carolina
$32.4M -$1.29M -5,442 -4%
Franklin Resources
31
Franklin Resources
California
$31.8M +$4.25M +17,999 +16%
Norges Bank
32
Norges Bank
Norway
$31M -$6.69M -28,306 -18%
Federated Hermes
33
Federated Hermes
Pennsylvania
$30.7M -$3.12M -13,192 -9%
QM
34
QVIDTVM Management
Texas
$30.4M -$28.4K -120 -0.1%
ICP
35
Ilex Capital Partners
United Kingdom
$29.2M +$27.1M +114,490 +1,790%
Manulife (Manufacturers Life Insurance)
36
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$28.8M +$1.29M +5,458 +5%
Artisan Partners
37
Artisan Partners
Wisconsin
$28.5M -$395K -1,670 -1%
TM
38
Tikvah Management
North Carolina
$26.8M
ECM
39
ExodusPoint Capital Management
New York
$26.2M +$15.2M +64,315 +145%
Goldman Sachs
40
Goldman Sachs
New York
$25.3M -$31.2K -132 -0.1%
Envestnet Asset Management
41
Envestnet Asset Management
Illinois
$25M +$42.1K +178 +0.2%
SCM
42
Scopia Capital Management
New York
$22.9M +$22.4M +94,737 New
JP
43
JNE Partners
United Kingdom
$22.2M +$21.8M +92,100 New
GAM
44
Gotham Asset Management
New York
$21.2M +$14M +59,397 +209%
Man Group
45
Man Group
United Kingdom
$19.4M +$17.4M +73,575 +1,096%
HF
46
HRT Financial
New York
$18.1M +$3.8M +16,085 +27%
FGP
47
Freestone Grove Partners
California
$17.8M +$17.4M +73,616 New
PCM
48
Portolan Capital Management
Massachusetts
$15.2M +$9.7M +41,044 +189%
Citigroup
49
Citigroup
New York
$14.9M +$6.39M +27,052 +78%
MAMU
50
Marathon Asset Management (UK)
United Kingdom
$14.4M -$200K -844 -1%

BIO Hedge Fund Activity: Q2 2025 in Review

383 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Bio-Rad Laboratories Class A (BIO) for Q2 2025, worth a combined $4.63B — down 1.7% from $4.71B a quarter earlier.

Sellers outnumbered buyers: 101 funds closed out of BIO and 53 opened new positions — a net loss of 48 holders — while 169 trimmed existing stakes and 113 added.

The largest buyer was First Eagle Investment Management, adding an estimated $225M. The largest seller was VanEck Associates, cutting an estimated $132M.

  • 383 institutional investors held Bio-Rad Laboratories Class A (BIO) as of Q2 2025, down from 435 in Q1 2025.
  • Funds reported $4.63B of Bio-Rad Laboratories Class A stock for Q2 2025, down 1.7% quarter-over-quarter.
  • 53 funds opened new Bio-Rad Laboratories Class A positions in Q2 2025 and 101 closed out, a net change of -48 holders.
  • The largest Bio-Rad Laboratories Class A buyer in Q2 2025 was First Eagle Investment Management, an estimated $225M added.
  • The largest Bio-Rad Laboratories Class A seller in Q2 2025 was VanEck Associates, an estimated $132M sold.

Based on aggregated 13F filings for Q2 2025.