Mariner
RKLB icon

Mariner’s Rocket Lab Corp RKLB Stock Holding History

Mariner’s Portfolio RKLB Stock Details RKLB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$21.7M Buy
213,052
+55,377
+35% +$5.52M 0.02% 453
2026
Q1 		$10.1M Sell
157,675
-26,779
-15% -$2.02M 0.01% 742
2025
Q4 		$12.9M Buy
184,454
+29,263
+19% +$1.68M 0.02% 591
2025
Q3 		$7.44M Sell
155,191
-13,624
-8% -$618K 0.01% 748
2025
Q2 		$6.04M Buy
168,815
+5,209
+3% +$127K 0.01% 798
2025
Q1 		$2.93M Buy
163,606
+7,521
+5% +$180K ﹤0.01% 1035
2024
Q4 		$3.98M Sell
156,085
-8,823
-5% -$155K 0.01% 882
2024
Q3 		$1.6M Buy
164,908
+7,991
+5% +$48.5K ﹤0.01% 1311
2024
Q2 		$753K Buy
156,917
+33,075
+27% +$138K ﹤0.01% 1720
2024
Q1 		$509K Buy
123,842
+18,956
+18% +$87.5K ﹤0.01% 2014
2023
Q4 		$580K Buy
104,886
+57,984
+124% +$262K ﹤0.01% 1848
2023
Q3 		$205K Buy
46,902
+21,203
+83% +$129K ﹤0.01% 2483
2023
Q2 		$154K Buy
25,699
+6,301
+32% +$28.9K ﹤0.01% 2541
2023
Q1 		$78K Buy
+19,398
New +$87.1K ﹤0.01% 2614
2022
Q4 		– Sell
-16,470
Closed -$67K – 2823
2022
Q3 		$67K Buy
+16,470
New +$81.2K ﹤0.01% 2273

Other funds holding RKLB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Mariner's RKLB Position: Q2 2026 in Review

Mariner increased its Rocket Lab Corp (RKLB) stake by 35% in Q2 2026, buying an estimated $5.52M and bringing the position to 213,052 shares worth $21.7M. The position accounts for 0.02% of the portfolio, ranked #453.

Mariner first reported a position in RKLB in Q3 2022 and has held it in 15 quarters since. 1,127 funds tracked by Wall St. Rank hold RKLB as of Q2 2026.

  • Mariner held 213,052 shares of Rocket Lab Corp worth $21.7M as of Q2 2026.
  • Mariner bought 55,377 Rocket Lab Corp shares in Q2 2026, an estimated $5.52M.
  • Rocket Lab Corp made up 0.02% of Mariner's portfolio in Q2 2026, its #453 holding.
  • Mariner first reported a position in Rocket Lab Corp in Q3 2022 and has held it in 15 quarters since.
  • 1,127 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q2 2026.

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