Mariner
DRTS icon

Mariner’s Alpha Tau Medical DRTS Stock Holding History

Mariner’s Portfolio DRTS Stock Details DRTS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.04M Buy
146,396
+21,231
+17% +$150K ﹤0.01% 1939
2025
Q4 		$620K Buy
125,165
+1,915
+2% +$8.07K ﹤0.01% 2301
2025
Q3 		$556K Buy
123,250
+80,129
+186% +$273K ﹤0.01% 2347
2025
Q2 		$135K Buy
43,121
+3,000
+7% +$8.45K ﹤0.01% 3179
2025
Q1 		$101K Sell
40,121
-630
-2% -$1.98K ﹤0.01% 3184
2024
Q4 		$126K Hold
40,751
– – ﹤0.01% 3129
2024
Q3 		$97K Sell
40,751
-1,143
-3% -$2.53K ﹤0.01% 3096
2024
Q2 		$106K Buy
41,894
+3,310
+9% +$8.42K ﹤0.01% 2945
2024
Q1 		$114K Hold
38,584
– – ﹤0.01% 2906
2023
Q4 		$116K Buy
+38,584
New +$124K ﹤0.01% 2827

Other funds holding DRTS

HighTower Advisors
HighTower Advisors Chicago, Illinois $94.2B AUM 21.24% 1-Year Est. Return
AF
Aquamarine Financial George Town $1.37B AUM
AC
Apella Capital West Hartford, Connecticut $7.08B AUM 17.38% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Kovitz Investment Group Partners
Kovitz Investment Group Partners Chicago, Illinois $4.31B AUM 20.41% 1-Year Est. Return
DSC
Daytona Street Capital Saint Louis, Missouri $130M AUM
GIA
Gem Investment Advisors Teaneck, New Jersey $102M AUM
LCS
Levin Capital Strategies New York $1.32B AUM 28.11% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return

Mariner's DRTS Position: Q1 2026 in Review

Mariner increased its Alpha Tau Medical (DRTS) stake by 17% in Q1 2026, buying an estimated $150K and bringing the position to 146,396 shares worth $1.04M. The position accounts for ﹤0.01% of the portfolio, ranked #1939.

Mariner first reported a position in DRTS in Q4 2023 and has held it in 10 quarters since. 53 funds tracked by Wall St. Rank hold DRTS as of Q1 2026.

  • Mariner held 146,396 shares of Alpha Tau Medical worth $1.04M as of Q1 2026.
  • Mariner bought 21,231 Alpha Tau Medical shares in Q1 2026, an estimated $150K.
  • Alpha Tau Medical made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #1939 holding.
  • Mariner first reported a position in Alpha Tau Medical in Q4 2023 and has held it in 10 quarters since.
  • 53 funds tracked by Wall St. Rank held Alpha Tau Medical as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.