Twin Tree Management’s Amphenol APH Stock Holding History

Twin Tree Management’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	-190,600	Closed	-$11.8M	–	1380
2025 Q3	$11.8M	Buy	190,600 +12,800	+7%	+$702K	0.05%	434
2025 Q2	$8.78M	Sell	177,800 -75,200	-30%	-$3.08M	0.02%	813
2025 Q1	$8.3M	Sell	253,000 -262,200	-51%	-$8.94M	0.02%	731
2024 Q4	$17.9M	Sell	515,200 -359,400	-41%	-$12.6M	0.03%	498
2024 Q3	$28.5M	Buy	874,600 +763,000	+684%	+$24.7M	0.06%	309
2024 Q2	$3.76M	Buy	+111,600	New	+$3.52M	0.01%	831
2015 Q1	–	Sell	-128,800	Closed	-$866K	–	1134
2014 Q4	$866K	Buy	+128,800	New	+$824K	0.02%	629
2014 Q2	–	Sell	-475,200	Closed	-$2.72M	–	889
2014 Q1	$2.72M	Hold	475,200	–	–	0.06%	372
2013 Q4	$2.65M	Hold	475,200	–	–	0.06%	333
2013 Q3	$2.3M	Buy	+475,200	New	+$2.32M	0.08%	286

Other funds holding APH

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Twin Tree Management's APH Position: Q2 2026 in Review

Twin Tree Management opened a new position in Amphenol (APH) in Q2 2026: 65,144 shares worth $5.74M. The stake represents 0.11% of the portfolio and ranks #244 among its holdings. This is a return to the name: Twin Tree Management previously reported a position in APH as recently as Q3 2025.

Twin Tree Management first reported a position in APH in Q1 2015 and has held it in 27 quarters since. The position peaked at $54.9M in Q2 2025. 2,327 funds tracked by Wall St. Rank hold APH as of Q2 2026.

Twin Tree Management held 65,144 shares of Amphenol worth $5.74M as of Q2 2026.
Amphenol was a new Twin Tree Management position in Q2 2026.
Amphenol made up 0.11% of Twin Tree Management's portfolio in Q2 2026, its #244 holding.
Twin Tree Management first reported a position in Amphenol in Q1 2015 and has held it in 27 quarters since.
Twin Tree Management's Amphenol position peaked at $54.9M in Q2 2025.
2,327 funds tracked by Wall St. Rank held Amphenol as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.