Keystone Investors’s Amphenol APH Stock Holding History

Keystone Investors’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 Q4	$5.81M	Buy	+43,000	New	+$5.75M	0.52%	39
2025 Q3	–	Sell	-15,295	Closed	-$1.51M	–	70
2025 Q2	$1.51M	Buy	+15,295	New	+$1.25M	0.31%	40

Other funds holding APH

JSC

J. Stern & Co London, United Kingdom $1.03B AUM 20.71% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Keystone Investors's APH Position: Q4 2025 in Review

Keystone Investors opened a new position in Amphenol (APH) in Q4 2025: 43,000 shares worth $5.81M. The stake represents 0.52% of the portfolio and ranks #39 among its holdings. This is a return to the name: Keystone Investors previously reported a position in APH as recently as Q2 2025.

Keystone Investors first reported a position in APH in Q2 2025 and has held it in 2 quarters since. 2,052 funds tracked by Wall St. Rank hold APH as of Q4 2025.

Keystone Investors held 43,000 shares of Amphenol worth $5.81M as of Q4 2025.
Amphenol was a new Keystone Investors position in Q4 2025.
Amphenol made up 0.52% of Keystone Investors's portfolio in Q4 2025, its #39 holding.
Keystone Investors first reported a position in Amphenol in Q2 2025 and has held it in 2 quarters since.
2,052 funds tracked by Wall St. Rank held Amphenol as of Q4 2025.

Based on Keystone Investors's 13F filing for Q4 2025, filed 13 Feb 2026.