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 		$26.6M Sell
413,900
-671,400
-62% -$50.6M 0.02% 353
2025
Q4 		$75.7M Buy
1,085,300
+16,200
+2% +$929K 0.04% 200
2025
Q3 		$51.2M Buy
1,069,100
+79,200
+8% +$3.59M 0.03% 348
2025
Q2 		$35.4M Buy
989,900
+229,500
+30% +$5.62M 0.02% 373
2025
Q1 		$13.6M Sell
760,400
-15,200
-2% -$364K 0.01% 703
2024
Q4 		$19.8M Buy
775,600
+150,400
+24% +$2.64M 0.01% 648
2024
Q3 		$6.08M Buy
625,200
+177,200
+40% +$1.08M ﹤0.01% 1356
2024
Q2 		$2.15M Buy
448,000
+11,500
+3% +$47.9K ﹤0.01% 2129
2024
Q1 		$1.79M Buy
436,500
+159,800
+58% +$738K ﹤0.01% 2514
2023
Q4 		$1.53M Buy
276,700
+191,900
+226% +$867K ﹤0.01% 2597
2023
Q3 		$371K Buy
84,800
+16,000
+23% +$97.3K ﹤0.01% 3711
2023
Q2 		$412K Buy
68,800
+5,200
+8% +$23.9K ﹤0.01% 3513
2023
Q1 		$256K Buy
63,600
+2,500
+4% +$11.2K ﹤0.01% 4025
2022
Q4 		$230K Sell
61,100
-1,800
-3% -$7.86K ﹤0.01% 4055
2022
Q3 		$256K Buy
62,900
+37,300
+146% +$184K ﹤0.01% 4280
2022
Q2 		$97K Sell
25,600
-141,900
-85% -$835K ﹤0.01% 5597
2022
Q1 		$1.35M Sell
167,500
-84,900
-34% -$790K ﹤0.01% 2534
2021
Q4 		$3.1M Buy
+252,400
New +$3.47M ﹤0.01% 1602
2021
Q3 		– Sell
-26,900
Closed -$292K – 9870
2021
Q2 		$292K Buy
+26,900
New +$280K ﹤0.01% 5024

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.