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Stephen Mandel’s Amphenol APH Stock Holding History

Stephen Mandel’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
2026
Q2 		– Sell
-223,084
Closed -$28.2M – 35
2026
Q1 		$28.2M Sell
223,084
-2,586,689
-92% -$364M 0.22% 31
2025
Q4 		$380M Sell
2,809,773
-213,458
-7% -$28.6M 2.79% 21
2025
Q3 		$374M Buy
+3,023,231
New +$332M 2.72% 21

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

Stephen Mandel's APH Position: Q2 2026 in Review

Stephen Mandel sold out of Amphenol (APH) in Q2 2026, closing a stake of 223,084 shares — an estimated $28.2M sold.

Stephen Mandel first reported a position in APH in Q3 2025 and held it in 3 quarters. The position peaked at $380M in Q4 2025. 2,315 funds tracked by Wall St. Rank hold APH as of Q2 2026.

  • Stephen Mandel reported no remaining Amphenol position as of Q2 2026 after selling out during the quarter.
  • Stephen Mandel sold 223,084 Amphenol shares in Q2 2026, an estimated $28.2M.
  • Stephen Mandel first reported a position in Amphenol in Q3 2025 and held it in 3 quarters.
  • Stephen Mandel's Amphenol position peaked at $380M in Q4 2025.
  • 2,315 funds tracked by Wall St. Rank held Amphenol as of Q2 2026.

Based on Lone Pine Capital's 13F filing for Q2 2026, filed 14 Aug 2026.