William Mack & Associates
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William Mack & Associates’s Rocket Lab Corp RKLB Stock Holding History

William Mack & Associates’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
Q3 		$70.7K Buy
+1,015
New +$73.1K 0.02% 203

Other funds holding RKLB

BlackRock
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Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $106B AUM 2.29% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $824B AUM 37.44% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

William Mack & Associates's RKLB Position: Q3 2026 in Review

William Mack & Associates opened a new position in Rocket Lab Corp (RKLB) in Q3 2026: 1,015 shares worth $70.7K. The stake represents 0.02% of the portfolio and ranks #203 among its holdings.

897 funds tracked by Wall St. Rank hold RKLB as of Q3 2026.

  • William Mack & Associates held 1,015 shares of Rocket Lab Corp worth $70.7K as of Q3 2026.
  • Rocket Lab Corp was a new William Mack & Associates position in Q3 2026.
  • Rocket Lab Corp made up 0.02% of William Mack & Associates's portfolio in Q3 2026, its #203 holding.
  • 897 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q3 2026.

Based on William Mack & Associates's 13F filing for Q3 2026, filed 27 Oct 2026.