Janus Henderson Group
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Janus Henderson Group’s Rocket Lab Corp RKLB Stock Holding History

Janus Henderson Group’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 		$12.7M Buy
198,013
+15,558
+9% +$1.17M 0.01% 701
2025
Q4 		$12.7M Buy
182,455
+161,955
+790% +$9.28M 0.01% 697
2025
Q3 		$983K Sell
20,500
-143,141
-87% -$6.49M ﹤0.01% 1678
2025
Q2 		$5.85M Buy
163,641
+16,000
+11% +$392K ﹤0.01% 854
2025
Q1 		$2.75M Hold
147,641
– – ﹤0.01% 1120
2024
Q4 		$3.76M Buy
147,641
+28,300
+24% +$497K ﹤0.01% 1023
2024
Q3 		$1.16M Hold
119,341
– – ﹤0.01% 1589
2024
Q2 		$572K Sell
119,341
-1,523
-1% -$6.35K ﹤0.01% 1921
2024
Q1 		$495K Buy
120,864
+82
+0.1% +$378 ﹤0.01% 2010
2023
Q4 		$667K Sell
120,782
-139
-0.1% -$628 ﹤0.01% 1860
2023
Q3 		$529K Buy
120,921
+30
+0% +$182 ﹤0.01% 1891
2023
Q2 		$724K Buy
120,891
+54,611
+82% +$251K ﹤0.01% 1773
2023
Q1 		$267K Buy
66,280
+32,988
+99% +$148K ﹤0.01% 2342
2022
Q4 		$126K Sell
33,292
-33,294
-50% -$145K ﹤0.01% 2289
2022
Q3 		$272K Buy
66,586
+32,021
+93% +$158K ﹤0.01% 2258
2022
Q2 		$130K Buy
34,565
+1,132
+3% +$6.66K ﹤0.01% 2427
2022
Q1 		$269K Sell
33,433
-59
-0.2% -$549 ﹤0.01% 2286
2021
Q4 		$411K Buy
+33,492
New +$460K ﹤0.01% 2014

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

Janus Henderson Group's RKLB Position: Q1 2026 in Review

Janus Henderson Group increased its Rocket Lab Corp (RKLB) stake by 8.5% in Q1 2026, buying an estimated $1.17M and bringing the position to 198,013 shares worth $12.7M. The position accounts for 0.01% of the portfolio, ranked #701.

Janus Henderson Group first reported a position in RKLB in Q4 2021 and has held it in 18 quarters since. The position peaked at $12.7M in Q4 2025. 872 funds tracked by Wall St. Rank hold RKLB as of Q1 2026.

  • Janus Henderson Group held 198,013 shares of Rocket Lab Corp worth $12.7M as of Q1 2026.
  • Janus Henderson Group bought 15,558 Rocket Lab Corp shares in Q1 2026, an estimated $1.17M.
  • Rocket Lab Corp made up 0.01% of Janus Henderson Group's portfolio in Q1 2026, its #701 holding.
  • Janus Henderson Group first reported a position in Rocket Lab Corp in Q4 2021 and has held it in 18 quarters since.
  • Janus Henderson Group's Rocket Lab Corp position peaked at $12.7M in Q4 2025.
  • 872 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.