Mariner
RCKT icon

Mariner’s Rocket Pharmaceuticals RCKT Stock Holding History

Mariner’s Portfolio RCKT Stock Details RCKT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$679K Buy
198,662
+8,551
+4% +$28.4K ﹤0.01% 2251
2026
Q1 		$680K Buy
190,111
+177,477
+1,405% +$705K ﹤0.01% 2255
2025
Q4 		$44.2K Sell
12,634
-16,832
-57% -$57.6K ﹤0.01% 3430
2025
Q3 		$96.1K Buy
29,466
+6,402
+28% +$20.2K ﹤0.01% 3368
2025
Q2 		$56.5K Buy
23,064
+8,869
+62% +$44.9K ﹤0.01% 3331
2025
Q1 		$94.8K Buy
14,195
+3,134
+28% +$31K ﹤0.01% 3197
2024
Q4 		$139K Buy
+11,061
New +$167K ﹤0.01% 3108

Other funds holding RCKT

RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Citigroup
Citigroup New York $303B AUM 53.02% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Mariner's RCKT Position: Q2 2026 in Review

Mariner increased its Rocket Pharmaceuticals (RCKT) stake by 4.5% in Q2 2026, buying an estimated $28.4K and bringing the position to 198,662 shares worth $679K. The position accounts for ﹤0.01% of the portfolio, ranked #2251.

Mariner first reported a position in RCKT in Q4 2024 and has held it in 7 quarters since. The position peaked at $680K in Q1 2026. 180 funds tracked by Wall St. Rank hold RCKT as of Q2 2026.

  • Mariner held 198,662 shares of Rocket Pharmaceuticals worth $679K as of Q2 2026.
  • Mariner bought 8,551 Rocket Pharmaceuticals shares in Q2 2026, an estimated $28.4K.
  • Rocket Pharmaceuticals made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2251 holding.
  • Mariner first reported a position in Rocket Pharmaceuticals in Q4 2024 and has held it in 7 quarters since.
  • Mariner's Rocket Pharmaceuticals position peaked at $680K in Q1 2026.
  • 180 funds tracked by Wall St. Rank held Rocket Pharmaceuticals as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.