Ardsley Advisory Partners’s Amphenol APH Stock Holding History

Ardsley Advisory Partners’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	–	Sell	-45,000	Closed	-$5.57M	–	147
2025 Q3	$5.57M	Buy	+45,000	New	+$4.94M	0.69%	52

Other funds holding APH

Egerton Capital (UK) London, United Kingdom $10.4B AUM 25.66% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Rathbones Group Liverpool, United Kingdom $27.1B AUM 20.2% 1-Year Est. Return

Alecta Tjanstepension Omsesidigt Stockholm, Sweden $23.8B AUM 34.25% 1-Year Est. Return

Fenimore Asset Management Cobleskill, New York $4.83B AUM 9.09% 1-Year Est. Return

James Hambro & Partners London, United Kingdom $2.76B AUM 19.67% 1-Year Est. Return

Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

Johnson Investment Counsel Cincinnati, Ohio $13.7B AUM 21.52% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS)

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

Cookson Peirce & Co Pittsburgh, Pennsylvania $3.04B AUM 94.11% 1-Year Est. Return

Ardsley Advisory Partners's APH Position: Q2 2026 in Review

Ardsley Advisory Partners opened a new position in Amphenol (APH) in Q2 2026: 22,000 shares worth $3.88M. The stake represents 0.4% of the portfolio and ranks #76 among its holdings.

825 funds tracked by Wall St. Rank hold APH as of Q2 2026.

Ardsley Advisory Partners held 22,000 shares of Amphenol worth $3.88M as of Q2 2026.
Amphenol was a new Ardsley Advisory Partners position in Q2 2026.
Amphenol made up 0.4% of Ardsley Advisory Partners's portfolio in Q2 2026, its #76 holding.
825 funds tracked by Wall St. Rank held Amphenol as of Q2 2026.

Based on Ardsley Advisory Partners's 13F filing for Q2 2026, filed 13 Jul 2026.