Marshall Wace
APH icon

Marshall Wace’s Amphenol APH Stock Holding History

Marshall Wace’s Portfolio APH Stock Details APH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-375,000
Closed -$18.5M – 2868
2025
Q2 		$18.5M Buy
+375,000
New +$15.3M 0.02% 611

Other funds holding APH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Marshall Wace's APH Position: Q2 2026 in Review

Marshall Wace reduced its Amphenol (APH) stake by 95% in Q2 2026, selling an estimated $321M and leaving 218,426 shares worth $19.3M. The position accounts for 0.02% of the portfolio, ranked #742.

Marshall Wace first reported a position in APH in Q2 2015 and has held it in 23 quarters since. The position peaked at $295M in Q1 2026. 2,328 funds tracked by Wall St. Rank hold APH as of Q2 2026.

  • Marshall Wace held 218,426 shares of Amphenol worth $19.3M as of Q2 2026.
  • Marshall Wace sold 4,456,194 Amphenol shares in Q2 2026, an estimated $321M.
  • Amphenol made up 0.02% of Marshall Wace's portfolio in Q2 2026, its #742 holding.
  • Marshall Wace first reported a position in Amphenol in Q2 2015 and has held it in 23 quarters since.
  • Marshall Wace's Amphenol position peaked at $295M in Q1 2026.
  • 2,328 funds tracked by Wall St. Rank held Amphenol as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.