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Gilbert & Cook’s Rocket Lab Corp RKLB Stock Holding History

Gilbert & Cook’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 		$1.69M Sell
26,284
-16,923
-39% -$1.28M 0.22% 38
2025
Q4 		$3.01M Buy
43,207
+110
+0.3% +$6.31K 0.38% 23
2025
Q3 		$2.06M Sell
43,097
-302
-0.7% -$13.7K 0.27% 31
2025
Q2 		$1.55M Buy
43,399
+872
+2% +$21.3K 0.21% 42
2025
Q1 		$760K Buy
42,527
+35
+0.1% +$839 0.11% 90
2024
Q4 		$1.08M Sell
42,492
-173
-0.4% -$3.04K 0.15% 62
2024
Q3 		$415K Sell
42,665
-1,272
-3% -$7.72K 0.06% 150
2024
Q2 		$211K Sell
43,937
-4,521
-9% -$18.8K 0.03% 205
2024
Q1 		$199K Buy
48,458
+565
+1% +$2.61K 0.03% 218
2023
Q4 		$265K Buy
47,893
+3,598
+8% +$16.2K 0.04% 200
2023
Q3 		$194K Buy
44,295
+29,677
+203% +$180K 0.03% 212
2023
Q2 		$87.7K Buy
+14,618
New +$67.1K 0.01% 218

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

Gilbert & Cook's RKLB Position: Q1 2026 in Review

Gilbert & Cook reduced its Rocket Lab Corp (RKLB) stake by 39% in Q1 2026, selling an estimated $1.28M and leaving 26,284 shares worth $1.69M. The position accounts for 0.22% of the portfolio, ranked #38.

Gilbert & Cook first reported a position in RKLB in Q2 2023 and has held it in 12 quarters since. The position peaked at $3.01M in Q4 2025. 872 funds tracked by Wall St. Rank hold RKLB as of Q1 2026.

  • Gilbert & Cook held 26,284 shares of Rocket Lab Corp worth $1.69M as of Q1 2026.
  • Gilbert & Cook sold 16,923 Rocket Lab Corp shares in Q1 2026, an estimated $1.28M.
  • Rocket Lab Corp made up 0.22% of Gilbert & Cook's portfolio in Q1 2026, its #38 holding.
  • Gilbert & Cook first reported a position in Rocket Lab Corp in Q2 2023 and has held it in 12 quarters since.
  • Gilbert & Cook's Rocket Lab Corp position peaked at $3.01M in Q4 2025.
  • 872 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q1 2026.

Based on Gilbert & Cook's 13F filing for Q1 2026, filed 5 May 2026.