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CSS LLC’s Rocket Lab Corp RKLB Stock Holding History

CSS LLC’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 		$316K Sell
4,927
-54,200
-92% -$4.09M 0.02% 640
2025
Q4 		$4.12M Sell
59,127
-2,700
-4% -$155K 0.18% 96
2025
Q3 		$2.96M Sell
61,827
-200
-0.3% -$9.07K 0.13% 131
2025
Q2 		$2.22M Buy
62,027
+8,724
+16% +$214K 0.1% 166
2025
Q1 		$953K Buy
53,303
+3,160
+6% +$75.7K 0.05% 287
2024
Q4 		$1.28M Buy
50,143
+26,720
+114% +$469K 0.06% 277
2024
Q3 		$228K Buy
+23,423
New +$142K 0.01% 646
2022
Q4 		– Sell
-10,916
Closed -$44K – 1076
2022
Q3 		$44K Hold
10,916
– – ﹤0.01% 891
2022
Q2 		$41K Sell
10,916
-10,000
-48% -$58.9K ﹤0.01% 962
2022
Q1 		$169K Buy
+20,916
New +$195K 0.01% 875

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

CSS LLC's RKLB Position: Q1 2026 in Review

CSS LLC reduced its Rocket Lab Corp (RKLB) stake by 92% in Q1 2026, selling an estimated $4.09M and leaving 4,927 shares worth $316K. The position accounts for 0.02% of the portfolio, ranked #640.

CSS LLC first reported a position in RKLB in Q1 2022 and has held it in 10 quarters since. The position peaked at $4.12M in Q4 2025. 872 funds tracked by Wall St. Rank hold RKLB as of Q1 2026.

  • CSS LLC held 4,927 shares of Rocket Lab Corp worth $316K as of Q1 2026.
  • CSS LLC sold 54,200 Rocket Lab Corp shares in Q1 2026, an estimated $4.09M.
  • Rocket Lab Corp made up 0.02% of CSS LLC's portfolio in Q1 2026, its #640 holding.
  • CSS LLC first reported a position in Rocket Lab Corp in Q1 2022 and has held it in 10 quarters since.
  • CSS LLC's Rocket Lab Corp position peaked at $4.12M in Q4 2025.
  • 872 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q1 2026.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.