Alpha Tau Medical
DRTS
53 hedge funds and large institutions have $29.1M invested in Alpha Tau Medical in 2026 Q1 according to their latest regulatory filings, with 20 funds opening new positions, 8 increasing their positions, 14 reducing their positions, and 2 closing their positions.
900% more first-time investments, than exits
New positions opened: 20 | Existing positions closed: 2
143% more capital invested
Capital invested by funds: $11.9M → $29.1M (+$17.1M)
111% more call options, than puts
Call options by funds: $1.14M | Put options by funds: $537K
51% more funds holding
Funds holding: 35 → 53 (+18)
1.94% more ownership
Funds ownership: 2.85% → 4.79% (+1.9%)
43% less repeat investments, than reductions
Existing positions increased: 8 | Existing positions reduced: 14
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AF
Aquamarine Financial
George Town,
|
+$5.09M |
| 2 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
+$2.06M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$1.88M |
| 4 |
HighTower Advisors
Chicago,
Illinois
|
+$1.33M |
| 5 |
Jane Street
New York
|
+$533K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LCS
Levin Capital Strategies
New York
|
-$535K |
| 2 |
Millennium Management
New York
|
-$433K |
| 3 |
GIA
Gem Investment Advisors
Teaneck,
New Jersey
|
-$226K |
| 4 |
SF
Summit Financial
Parsippany,
New Jersey
|
-$99.2K |
| 5 |
QC
Quent Capital
New York
|
-$99K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
51
Osaic Holdings
Scottsdale,
Arizona
| $1.98K | -$1.66K | -235 | -46% |
|
52
Group One Trading
Chicago,
Illinois
| $707 | +$706 | +100 | New |
|
|
CIAM
53
Caitong International Asset Management
Hong Kong
| $481 | +$480 | +68 | New |
|
|
QC
54
Quent Capital
New York
| – | -$99K | -20,000 | Closed |
|
55
Simplex Trading
Chicago,
Illinois
| – | -$6.43K | -911 | Closed |
|
DRTS Hedge Fund Activity: Q1 2026 in Review
53 of the 8,127 institutional investors tracked by Wall St. Rank reported a position in Alpha Tau Medical (DRTS) for Q1 2026, worth a combined $29.1M — up 143% from $11.9M a quarter earlier.
Buyers outnumbered sellers: 20 funds opened new DRTS positions and 2 closed out — a net gain of 18 holders — while 8 added to existing stakes and 14 trimmed.
The largest buyer was Aquamarine Financial, opening a new position worth an estimated $5.09M. The largest seller was Levin Capital Strategies, cutting an estimated $535K.
- 53 institutional investors held Alpha Tau Medical (DRTS) as of Q1 2026, up from 35 in Q4 2025.
- Funds reported $29.1M of Alpha Tau Medical stock for Q1 2026, up 143% quarter-over-quarter.
- 20 funds opened new Alpha Tau Medical positions in Q1 2026 and 2 closed out, a net change of +18 holders.
- The largest Alpha Tau Medical buyer in Q1 2026 was Aquamarine Financial, an estimated $5.09M added.
- The largest Alpha Tau Medical seller in Q1 2026 was Levin Capital Strategies, an estimated $535K sold.
Based on aggregated 13F filings for Q1 2026.