Standard BioTools
LAB
155 hedge funds and large institutions have $372M invested in Standard BioTools in 2025 Q3 according to their latest regulatory filings, with 13 funds opening new positions, 51 increasing their positions, 44 reducing their positions, and 17 closing their positions.
100% more funds holding in top 10
Funds holding in top 10: 2 → 4 (+2)
58% more call options, than puts
Call options by funds: $109K | Put options by funds: $69K
16% more repeat investments, than reductions
Existing positions increased: 51 | Existing positions reduced: 44
10% more capital invested
Capital invested by funds: $337M → $372M (+$34.9M)
0.95% more ownership
Funds ownership: 73.87% → 74.82% (+0.95%)
3% less funds holding
Funds holding: 160 → 155 (-5)
24% less first-time investments, than exits
New positions opened: 13 | Existing positions closed: 17
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MCO
MAK Capital One
New York
|
+$13.5M |
| 2 |
CC
Casdin Capital
New York
|
+$1.94M |
| 3 |
LFCM
Long Focus Capital Management
San Juan,
Puerto Rico
|
+$1.69M |
| 4 |
JC
JBF Capital
Aspen,
Colorado
|
+$1.01M |
| 5 |
Jane Street
New York
|
+$468K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MFS
Mirabella Financial Services
London,
United Kingdom
|
-$4.12M |
| 2 |
TM
Tikvah Management
Charlotte,
North Carolina
|
-$1.96M |
| 3 |
KLP
Kent Lake PR
Anasco,
Puerto Rico
|
-$1.2M |
| 4 |
Millennium Management
New York
|
-$1.19M |
| 5 |
Sumitomo Mitsui Trust Group
Minato-Ku, Tokyo,
Japan
|
-$1.01M |
LAB Hedge Fund Activity: Q3 2025 in Review
155 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Standard BioTools (LAB) for Q3 2025, worth a combined $372M — up 10% from $337M a quarter earlier.
Sellers outnumbered buyers: 17 funds closed out of LAB and 13 opened new positions — a net loss of 4 holders — while 44 trimmed existing stakes and 51 added.
The largest buyer was MAK Capital One, adding an estimated $13.5M. The largest seller was Mirabella Financial Services, exiting entirely with an estimated $4.12M sold.
- 155 institutional investors held Standard BioTools (LAB) as of Q3 2025, down from 160 in Q2 2025.
- Funds reported $372M of Standard BioTools stock for Q3 2025, up 10% quarter-over-quarter.
- 13 funds opened new Standard BioTools positions in Q3 2025 and 17 closed out, a net change of -4 holders.
- The largest Standard BioTools buyer in Q3 2025 was MAK Capital One, an estimated $13.5M added.
- The largest Standard BioTools seller in Q3 2025 was Mirabella Financial Services, an estimated $4.12M sold.
Based on aggregated 13F filings for Q3 2025.