AC
MRNS

Aaron Cowen’s Marinus Pharmaceuticals, Inc MRNS Stock Holding History

Aaron Cowen’s Portfolio MRNS Stock Details MRNS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q4 		– Sell
-5,073,913
Closed -$8.93M – 115
2024
Q3 		$8.93M Buy
5,073,913
+1,253,901
+33% +$1.75M 0.29% 55
2024
Q2 		$4.47M Sell
3,820,012
-1,288,508
-25% -$3.22M 0.16% 54
2024
Q1 		$46.2M Sell
5,108,520
-237,599
-4% -$2.31M 1.72% 20
2023
Q4 		$58.1M Buy
5,346,119
+141,177
+3% +$1.06M 2.63% 11
2023
Q3 		$41.9M Buy
5,204,942
+1,147,331
+28% +$9.54M 2.26% 13
2023
Q2 		$44.1M Sell
4,057,611
-773,650
-16% -$6.63M 2.36% 12
2023
Q1 		$33.3M Buy
4,831,261
+8,266
+0.2% +$51.8K 1.41% 29
2022
Q4 		$19.2M Buy
4,822,995
+1,285,295
+36% +$6.32M 0.81% 42
2022
Q3 		$23.5M Buy
3,537,700
+26,869
+0.8% +$165K 0.98% 41
2022
Q2 		$17M Buy
3,510,831
+744,831
+27% +$4.53M 0.65% 48
2022
Q1 		$25.9M Buy
2,766,000
+127,225
+5% +$1.26M 0.79% 40
2021
Q4 		$31.3M Buy
2,638,775
+441,349
+20% +$5.1M 0.61% 41
2021
Q3 		$25M Buy
2,197,426
+370,981
+20% +$5.1M 0.42% 46
2021
Q2 		$32.8M Hold
1,826,445
– – 0.49% 46
2021
Q1 		$28.3M Buy
1,826,445
+396,273
+28% +$5.73M 0.42% 51
2020
Q4 		$17.4M Buy
1,430,172
+650,447
+83% +$9.07M 0.25% 55
2020
Q3 		$10M Buy
779,725
+279,725
+56% +$2.41M 0.18% 53
2020
Q2 		$5.08M Buy
+500,000
New +$4.6M 0.11% 56

Other funds holding MRNS

BCM
Beryl Capital Management Redondo Beach, California $111M AUM 205.39% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
OBAM
ODDO BHF Asset Management Paris, France $2.16B AUM 43.32% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Aaron Cowen's MRNS Position: Q4 2024 in Review

Aaron Cowen sold out of Marinus Pharmaceuticals, Inc (MRNS) in Q4 2024, closing a stake of 5,073,913 shares — an estimated $8.93M sold.

Aaron Cowen first reported a position in MRNS in Q2 2020 and held it in 18 quarters. The position peaked at $58.1M in Q4 2023. 53 funds tracked by Wall St. Rank hold MRNS as of Q4 2024.

  • Aaron Cowen reported no remaining Marinus Pharmaceuticals, Inc position as of Q4 2024 after selling out during the quarter.
  • Aaron Cowen sold 5,073,913 Marinus Pharmaceuticals, Inc shares in Q4 2024, an estimated $8.93M.
  • Aaron Cowen first reported a position in Marinus Pharmaceuticals, Inc in Q2 2020 and held it in 18 quarters.
  • Aaron Cowen's Marinus Pharmaceuticals, Inc position peaked at $58.1M in Q4 2023.
  • 53 funds tracked by Wall St. Rank held Marinus Pharmaceuticals, Inc as of Q4 2024.

Based on Suvretta Capital Management's 13F filing for Q4 2024, filed 14 Feb 2025.