Ken Griffin
RKLB icon

Ken Griffin’s Rocket Lab Corp RKLB Stock Holding History

Ken Griffin’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 		$52.4M Sell
816,681
-62,955
-7% -$4.75M 0.01% 1314
2025
Q4 		$61.4M Sell
879,636
-305,825
-26% -$17.5M 0.01% 1240
2025
Q3 		$56.8M Sell
1,185,461
-348,513
-23% -$15.8M 0.01% 1267
2025
Q2 		$54.9M Buy
1,533,974
+1,004,629
+190% +$24.6M 0.01% 1173
2025
Q1 		$9.46M Buy
529,345
+33,040
+7% +$792K ﹤0.01% 2930
2024
Q4 		$12.6M Sell
496,305
-2,654,770
-84% -$46.6M ﹤0.01% 2677
2024
Q3 		$30.7M Buy
3,151,075
+784,018
+33% +$4.76M 0.01% 1657
2024
Q2 		$11.4M Sell
2,367,057
-2,442,337
-51% -$10.2M ﹤0.01% 2620
2024
Q1 		$19.8M Sell
4,809,394
-74,030
-2% -$342K ﹤0.01% 2080
2023
Q4 		$27M Buy
4,883,424
+2,884,048
+144% +$13M 0.01% 1719
2023
Q3 		$8.76M Buy
1,999,376
+1,479,417
+285% +$9M ﹤0.01% 2857
2023
Q2 		$3.12M Buy
519,959
+519,708
+207,055% +$2.38M ﹤0.01% 4396
2023
Q1 		$1.01K Sell
251
-13,707
-98% -$61.5K ﹤0.01% 14381
2022
Q4 		$52.6K Sell
13,958
-889,781
-98% -$3.89M ﹤0.01% 12064
2022
Q3 		$3.68M Sell
903,739
-1,987,986
-69% -$9.81M ﹤0.01% 4404
2022
Q2 		$11M Buy
2,891,725
+2,801,057
+3,089% +$16.5M ﹤0.01% 2567
2022
Q1 		$730K Sell
90,668
-84,495
-48% -$786K ﹤0.01% 8467
2021
Q4 		$2.15M Sell
175,163
-1,552,736
-90% -$21.3M ﹤0.01% 6068
2021
Q3 		$27.4M Buy
1,727,899
+859,732
+99% +$10.3M 0.01% 1654
2021
Q2 		$9.3M Buy
868,167
+861,675
+13,273% +$8.96M ﹤0.01% 3194
2021
Q1 		$77K Buy
+6,492
New +$72K ﹤0.01% 12668

Other funds holding RKLB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
DE
Defiance ETFs New York $6.98B AUM

Ken Griffin's RKLB Position: Q1 2026 in Review

Ken Griffin reduced its Rocket Lab Corp (RKLB) stake by 7.2% in Q1 2026, selling an estimated $4.75M and leaving 816,681 shares worth $52.4M. The position accounts for 0.01% of the portfolio, ranked #1314.

Ken Griffin first reported a position in RKLB in Q1 2021 and has held it in 21 quarters since. The position peaked at $61.4M in Q4 2025. 876 funds tracked by Wall St. Rank hold RKLB as of Q1 2026.

  • Ken Griffin held 816,681 shares of Rocket Lab Corp worth $52.4M as of Q1 2026.
  • Ken Griffin sold 62,955 Rocket Lab Corp shares in Q1 2026, an estimated $4.75M.
  • Rocket Lab Corp made up 0.01% of Ken Griffin's portfolio in Q1 2026, its #1314 holding.
  • Ken Griffin first reported a position in Rocket Lab Corp in Q1 2021 and has held it in 21 quarters since.
  • Ken Griffin's Rocket Lab Corp position peaked at $61.4M in Q4 2025.
  • 876 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.