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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.

New
Increased
Maintained
Reduced
Closed

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

Holders
35
Holders Change
+4
Holders Change %
+12.9%
% of All Funds
0.43%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
10
Increased
5
Reduced
7
Closed
6
Calls
$5K
Puts
$125K
Net Calls
-$120K
Net Calls Change
-$120K

Top Buyers

Rank Fund Capital Flow
1
AC
Apella Capital
Connecticut
+$1.61M
2
Millennium Management
Millennium Management
New York
+$295K
3
Focus Partners Wealth
Focus Partners Wealth
Massachusetts
+$136K
4
Bank of America
Bank of America
North Carolina
+$91.4K
5
QC
Quent Capital
New York
+$84.3K

Top Sellers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
-$279K
2
Citadel Advisors
Citadel Advisors
Florida
-$255K
3
Kovitz Investment Group Partners
Kovitz Investment Group Partners
Illinois
-$191K
4
Morgan Stanley
Morgan Stanley
New York
-$130K
5
LCS
Levin Capital Strategies
New York
-$94.8K
Name Holding Trade Value Shares
Change 		Change in
Stake
Bessemer Group
26
Bessemer Group
New Jersey
$18K – – –
AS
27
Altshuler Shaham
Israel
$17.8K +$7.59K +1,800 +100%
SPIA
28
Steward Partners Investment Advisory
New York
$16.3K – – –
TWC
29
TD Waterhouse Canada
Ontario, Canada
$12.6K – – –
CJ
30
Caitlin John
Michigan
$7.42K +$6.32K +1,500 New
Citigroup
31
Citigroup
New York
$7.42K +$6.32K +1,500 New
Simplex Trading
32
Simplex Trading
Illinois
$4.51K +$3.84K +911 New
EI
33
EFG International
$3.46K +$2.95K +700 New
Osaic Holdings
34
Osaic Holdings
Arizona
$2.55K -$927 -220 -30%
Jones Financial Companies
35
Jones Financial Companies
Missouri
$1.11K -$3.27K -775 -78%
Renaissance Technologies
36
Renaissance Technologies
New York
– -$279K -61,900 Closed
Citadel Advisors
37
Citadel Advisors
Florida
– -$255K -60,600 Closed
Envestnet Asset Management
38
Envestnet Asset Management
Illinois
– -$62.1K -13,765 Closed
XT
39
XTX Topco
Cayman Islands
– -$55.6K -12,333 Closed
Goldman Sachs
40
Goldman Sachs
New York
– -$55.5K -12,315 Closed
SS
41
SBI Securities
Japan
– -$5 -1 Closed
1
2

DRTS Hedge Fund Activity: Q4 2025 in Review

35 of the 8,228 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.