Westfield Capital Management
RKLB icon

Westfield Capital Management’s Rocket Lab Corp RKLB Stock Holding History

Westfield Capital Management’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
Q2 		$215M Sell
2,114,005
-1,058,606
-33% -$105M 0.7% 32
2026
Q1 		$204M Buy
3,172,611
+580,168
+22% +$43.7M 0.85% 20
2025
Q4 		$181M Buy
2,592,443
+154,623
+6% +$8.86M 0.75% 25
2025
Q3 		$117M Buy
2,437,820
+72,772
+3% +$3.3M 0.49% 50
2025
Q2 		$84.6M Sell
2,365,048
-221,484
-9% -$5.42M 0.35% 81
2025
Q1 		$46.2M Buy
2,586,532
+65,255
+3% +$1.56M 0.23% 139
2024
Q4 		$64.2M Buy
+2,521,277
New +$44.3M 0.28% 109

Other funds holding RKLB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Westfield Capital Management's RKLB Position: Q2 2026 in Review

Westfield Capital Management reduced its Rocket Lab Corp (RKLB) stake by 33% in Q2 2026, selling an estimated $105M and leaving 2,114,005 shares worth $215M. The position accounts for 0.7% of the portfolio, ranked #32.

Westfield Capital Management first reported a position in RKLB in Q4 2024 and has held it in 7 quarters since. 1,127 funds tracked by Wall St. Rank hold RKLB as of Q2 2026.

  • Westfield Capital Management held 2,114,005 shares of Rocket Lab Corp worth $215M as of Q2 2026.
  • Westfield Capital Management sold 1,058,606 Rocket Lab Corp shares in Q2 2026, an estimated $105M.
  • Rocket Lab Corp made up 0.7% of Westfield Capital Management's portfolio in Q2 2026, its #32 holding.
  • Westfield Capital Management first reported a position in Rocket Lab Corp in Q4 2024 and has held it in 7 quarters since.
  • 1,127 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q2 2026.

Based on Westfield Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.