Alpha Tau Medical
DRTS
35 hedge funds and large institutions have $11.9M invested in Alpha Tau Medical in 2025 Q4 according to their latest regulatory filings, with 10 funds opening new positions, 5 increasing their positions, 7 reducing their positions, and 6 closing their positions.
67% more first-time investments, than exits
New positions opened: 10 | Existing positions closed: 6
45% more capital invested
Capital invested by funds: $8.26M → $11.9M (+$3.68M)
13% more funds holding
Funds holding: 31 → 35 (+4)
0.68% more ownership
Funds ownership: 2.16% → 2.85% (+0.68%)
29% less repeat investments, than reductions
Existing positions increased: 5 | Existing positions reduced: 7
96% less call options, than puts
Call options by funds: $5K | Put options by funds: $125K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AC
Apella Capital
West Hartford,
Connecticut
|
+$1.61M |
| 2 |
Millennium Management
New York
|
+$295K |
| 3 |
Focus Partners Wealth
Boston,
Massachusetts
|
+$136K |
| 4 |
Bank of America
Charlotte,
North Carolina
|
+$91.4K |
| 5 |
QC
Quent Capital
New York
|
+$84.3K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Renaissance Technologies
New York
|
-$279K |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$255K |
| 3 |
Kovitz Investment Group Partners
Chicago,
Illinois
|
-$191K |
| 4 |
Morgan Stanley
New York
|
-$130K |
| 5 |
LCS
Levin Capital Strategies
New York
|
-$94.8K |
DRTS Hedge Fund Activity: Q4 2025 in Review
35 of the 8,275 institutional investors tracked by Wall St. Rank reported a position in Alpha Tau Medical (DRTS) for Q4 2025, worth a combined $11.9M — up 45% from $8.26M a quarter earlier.
Buyers outnumbered sellers: 10 funds opened new DRTS positions and 6 closed out — a net gain of 4 holders — while 5 added to existing stakes and 7 trimmed.
The largest buyer was Apella Capital, opening a new position worth an estimated $1.61M. The largest seller was Renaissance Technologies, exiting entirely with an estimated $279K sold.
- 35 institutional investors held Alpha Tau Medical (DRTS) as of Q4 2025, up from 31 in Q3 2025.
- Funds reported $11.9M of Alpha Tau Medical stock for Q4 2025, up 45% quarter-over-quarter.
- 10 funds opened new Alpha Tau Medical positions in Q4 2025 and 6 closed out, a net change of +4 holders.
- The largest Alpha Tau Medical buyer in Q4 2025 was Apella Capital, an estimated $1.61M added.
- The largest Alpha Tau Medical seller in Q4 2025 was Renaissance Technologies, an estimated $279K sold.
Based on aggregated 13F filings for Q4 2025.