Thermo Fisher Scientific
TMO
2,571 hedge funds and large institutions have $169B invested in Thermo Fisher Scientific in 2025 Q1 according to their latest regulatory filings, with 151 funds opening new positions, 1,039 increasing their positions, 1,005 reducing their positions, and 160 closing their positions.
15% more funds holding in top 10
Funds holding in top 10: 73 → 84 (+11)
1.4% more ownership
Funds ownership: 88.54% → 89.94% (+1.4%)
3% more repeat investments, than reductions
Existing positions increased: 1,039 | Existing positions reduced: 1,005
6% less first-time investments, than exits
New positions opened: 151 | Existing positions closed: 160
2% less funds holding
Funds holding: 2,617 → 2,571 (-46)
5% less capital invested
Capital invested by funds: $178B → $169B (-$9.18B)
11% less call options, than puts
Call options by funds: $961M | Put options by funds: $1.08B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital World Investors
Los Angeles,
California
|
+$883M |
| 2 |
JP Morgan Chase
New York
|
+$661M |
| 3 |
DZ Bank
Frankfurt Am Main,
Germany
|
+$319M |
| 4 |
Franklin Resources
San Mateo,
California
|
+$261M |
| 5 |
SP
Sarasin & Partners
London,
United Kingdom
|
+$204M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$918M |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$873M |
| 3 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$618M |
| 4 |
Impax Asset Management Group
London,
United Kingdom
|
-$234M |
| 5 |
ATO
Alecta Tjanstepension Omsesidigt
Stockholm,
Sweden
|
-$233M |
TMO Hedge Fund Activity: Q1 2025 in Review
2,571 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in Thermo Fisher Scientific (TMO) for Q1 2025, worth a combined $169B — down 5.2% from $178B a quarter earlier.
Sellers outnumbered buyers: 160 funds closed out of TMO and 151 opened new positions — a net loss of 9 holders — while 1,005 trimmed existing stakes and 1,039 added.
The largest buyer was Capital World Investors, adding an estimated $883M. The largest seller was Fidelity Investments, cutting an estimated $918M.
- 2,571 institutional investors held Thermo Fisher Scientific (TMO) as of Q1 2025, down from 2,617 in Q4 2024.
- Funds reported $169B of Thermo Fisher Scientific stock for Q1 2025, down 5.2% quarter-over-quarter.
- 151 funds opened new Thermo Fisher Scientific positions in Q1 2025 and 160 closed out, a net change of -9 holders.
- The largest Thermo Fisher Scientific buyer in Q1 2025 was Capital World Investors, an estimated $883M added.
- The largest Thermo Fisher Scientific seller in Q1 2025 was Fidelity Investments, an estimated $918M sold.
Based on aggregated 13F filings for Q1 2025.