The Oncology Institute
TOI
108 hedge funds and large institutions have $121M invested in The Oncology Institute in 2025 Q3 according to their latest regulatory filings, with 35 funds opening new positions, 33 increasing their positions, 24 reducing their positions, and 6 closing their positions.
3,185% more call options, than puts
Call options by funds: $3.55M | Put options by funds: $108K
483% more first-time investments, than exits
New positions opened: 35 | Existing positions closed: 6
85% more capital invested
Capital invested by funds: $65.5M → $121M (+$55.5M)
38% more repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 24
37% more funds holding
Funds holding: 79 → 108 (+29)
2.33% more ownership
Funds ownership: 34.75% → 37.08% (+2.3%)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CP
CenterBook Partners
Greenwich,
Connecticut
|
+$6.81M |
| 2 |
KWM
Kanen Wealth Management
Coconut Creek,
Florida
|
+$6.31M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$2.18M |
| 4 |
Millennium Management
New York
|
+$1.87M |
| 5 |
Goldman Sachs
New York
|
+$1.81M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TAS
TIFF Advisory Services
Radnor,
Pennsylvania
|
-$9.52M |
| 2 |
JAIC
Josh Arnold Investment Consultant
Edina,
Minnesota
|
-$7.68M |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$4.97M |
| 4 |
FL
FreeGulliver LLC
New Orleans,
Louisiana
|
-$458K |
| 5 |
PCM
Portolan Capital Management
Boston,
Massachusetts
|
-$454K |
TOI Hedge Fund Activity: Q3 2025 in Review
108 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in The Oncology Institute (TOI) for Q3 2025, worth a combined $121M — up 85% from $65.5M a quarter earlier.
Buyers outnumbered sellers: 35 funds opened new TOI positions and 6 closed out — a net gain of 29 holders — while 33 added to existing stakes and 24 trimmed.
The largest buyer was CenterBook Partners, adding an estimated $6.81M. The largest seller was TIFF Advisory Services, cutting an estimated $9.52M.
- 108 institutional investors held The Oncology Institute (TOI) as of Q3 2025, up from 79 in Q2 2025.
- Funds reported $121M of The Oncology Institute stock for Q3 2025, up 85% quarter-over-quarter.
- 35 funds opened new The Oncology Institute positions in Q3 2025 and 6 closed out, a net change of +29 holders.
- The largest The Oncology Institute buyer in Q3 2025 was CenterBook Partners, an estimated $6.81M added.
- The largest The Oncology Institute seller in Q3 2025 was TIFF Advisory Services, an estimated $9.52M sold.
Based on aggregated 13F filings for Q3 2025.