Thermo Fisher Scientific
TMO
2,454 hedge funds and large institutions have $135B invested in Thermo Fisher Scientific in 2025 Q2 according to their latest regulatory filings, with 183 funds opening new positions, 903 increasing their positions, 1,050 reducing their positions, and 264 closing their positions.
16% more call options, than puts
Call options by funds: $1.67B | Put options by funds: $1.43B
0.9% less ownership
Funds ownership: 89.94% → 89.04% (-0.9%)
5% less funds holding
Funds holding: 2,571 → 2,454 (-117)
14% less repeat investments, than reductions
Existing positions increased: 903 | Existing positions reduced: 1,050
20% less capital invested
Capital invested by funds: $169B → $135B (-$33.1B)
31% less first-time investments, than exits
New positions opened: 183 | Existing positions closed: 264
48% less funds holding in top 10
Funds holding in top 10: 84 → 44 (-40)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SC
Soundwatch Capital
Rowayton,
Connecticut
|
+$833M |
| 2 |
Flossbach Von Storch
Cologne,
Germany
|
+$549M |
| 3 |
Morgan Stanley
New York
|
+$536M |
| 4 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$486M |
| 5 |
D.E. Shaw & Co
New York
|
+$456M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$1.57B |
| 2 |
Capital Research Global Investors
Los Angeles,
California
|
-$911M |
| 3 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$791M |
| 4 |
BlackRock
New York
|
-$732M |
| 5 |
AIM
Alphinity Investment Management
Sydney,
Australia
|
-$717M |
TMO Hedge Fund Activity: Q2 2025 in Review
2,454 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Thermo Fisher Scientific (TMO) for Q2 2025, worth a combined $135B — down 20% from $169B a quarter earlier.
Sellers outnumbered buyers: 264 funds closed out of TMO and 183 opened new positions — a net loss of 81 holders — while 1,050 trimmed existing stakes and 903 added.
The largest buyer was Soundwatch Capital, opening a new position worth an estimated $833M. The largest seller was T. Rowe Price Associates, cutting an estimated $1.57B.
- 2,454 institutional investors held Thermo Fisher Scientific (TMO) as of Q2 2025, down from 2,571 in Q1 2025.
- Funds reported $135B of Thermo Fisher Scientific stock for Q2 2025, down 20% quarter-over-quarter.
- 183 funds opened new Thermo Fisher Scientific positions in Q2 2025 and 264 closed out, a net change of -81 holders.
- The largest Thermo Fisher Scientific buyer in Q2 2025 was Soundwatch Capital, an estimated $833M added.
- The largest Thermo Fisher Scientific seller in Q2 2025 was T. Rowe Price Associates, an estimated $1.57B sold.
Based on aggregated 13F filings for Q2 2025.