Simplex Trading
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Simplex Trading’s Rocket Lab Corp RKLB Stock Holding History

Simplex Trading’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
Q1 		$74.2K Sell
1,155
-398,955
-100% -$30.1M ﹤0.01% 5426
2025
Q4 		$27.9M Buy
+400,110
New +$22.9M 0.02% 441
2025
Q2 		– Sell
-24,763
Closed -$606K – 9579
2025
Q1 		$442K Buy
24,763
+11,655
+89% +$279K ﹤0.01% 3518
2024
Q4 		$333K Sell
13,108
-28,723
-69% -$504K ﹤0.01% 3958
2024
Q3 		$407K Sell
41,831
-62,017
-60% -$376K ﹤0.01% 3820
2024
Q2 		$498K Buy
103,848
+53,905
+108% +$225K ﹤0.01% 3671
2024
Q1 		$205K Sell
49,943
-350,732
-88% -$1.62M ﹤0.01% 4824
2023
Q4 		$2.21M Buy
400,675
+258,251
+181% +$1.17M ﹤0.01% 2272
2023
Q3 		$623K Buy
142,424
+25,717
+22% +$156K ﹤0.01% 3171
2023
Q2 		$700K Buy
116,707
+74,199
+175% +$340K ﹤0.01% 2956
2023
Q1 		$171K Buy
42,508
+40,908
+2,557% +$184K ﹤0.01% 4509
2022
Q4 		$6K Sell
1,600
-85,487
-98% -$373K ﹤0.01% 7963
2022
Q3 		$354K Buy
87,087
+50,990
+141% +$252K ﹤0.01% 3878
2022
Q2 		$136K Sell
36,097
-117,460
-76% -$691K ﹤0.01% 5140
2022
Q1 		$1.24M Sell
153,557
-158,049
-51% -$1.47M ﹤0.01% 2645
2021
Q4 		$3.83M Buy
+311,606
New +$4.28M ﹤0.01% 1426

Other funds holding RKLB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
DE
Defiance ETFs New York $6.98B AUM

Simplex Trading's RKLB Position: Q1 2026 in Review

Simplex Trading reduced its Rocket Lab Corp (RKLB) stake by 100% in Q1 2026, selling an estimated $30.1M and leaving 1,155 shares worth $74.2K. The position accounts for ﹤0.01% of the portfolio, ranked #5426.

Simplex Trading first reported a position in RKLB in Q4 2021 and has held it in 16 quarters since. The position peaked at $27.9M in Q4 2025. 872 funds tracked by Wall St. Rank hold RKLB as of Q1 2026.

  • Simplex Trading held 1,155 shares of Rocket Lab Corp worth $74.2K as of Q1 2026.
  • Simplex Trading sold 398,955 Rocket Lab Corp shares in Q1 2026, an estimated $30.1M.
  • Rocket Lab Corp made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #5426 holding.
  • Simplex Trading first reported a position in Rocket Lab Corp in Q4 2021 and has held it in 16 quarters since.
  • Simplex Trading's Rocket Lab Corp position peaked at $27.9M in Q4 2025.
  • 872 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.