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PDT Partners’s Amphenol APH Stock Holding History

PDT 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
2026
Q2 		$1.29M Buy
14,638
+4,600
+46% +$332K 0.07% 294
2026
Q1 		$634K Sell
10,038
-69,000
-87% -$4.86M 0.04% 393
2025
Q4 		$5.34M Sell
79,038
-4,498
-5% -$301K 0.35% 87
2025
Q3 		$5.17M Sell
83,536
-15,864
-16% -$870K 0.33% 99
2025
Q2 		$4.91M Sell
99,400
-38
-0% -$1.55K 0.28% 114
2025
Q1 		$3.26M Buy
99,438
+70,638
+245% +$2.41M 0.23% 142
2024
Q4 		$1M Hold
28,800
– – 0.09% 337
2024
Q3 		$938K Buy
+28,800
New +$934K 0.08% 380
2022
Q4 		– Sell
-34,204
Closed -$573K – 629
2022
Q3 		$573K Buy
+34,204
New +$621K 0.09% 402
2020
Q4 		– Sell
-27,200
Closed -$368K – 686
2020
Q3 		$368K Buy
+27,200
New +$358K 0.02% 509
2015
Q4 		– Sell
-407,688
Closed -$2.6M – 424
2015
Q3 		$2.6M Buy
407,688
+255,688
+168% +$1.72M 0.06% 360
2015
Q2 		$1.1M Sell
152,000
-46,400
-23% -$333K 0.03% 714
2015
Q1 		$1.46M Buy
198,400
+46,400
+31% +$325K 0.04% 583
2014
Q4 		$1.02M Sell
152,000
-43,664
-22% -$279K 0.1% 259
2014
Q3 		$1.22M Sell
195,664
-18,784
-9% -$118K 0.03% 565
2014
Q2 		$1.29M Buy
+214,448
New +$1.28M 0.03% 604
2013
Q4 		– Sell
-72,000
Closed -$348K – 649
2013
Q3 		$348K Buy
+72,000
New +$352K 0.01% 1194

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

PDT Partners's APH Position: Q2 2026 in Review

PDT Partners increased its Amphenol (APH) stake by 46% in Q2 2026, buying an estimated $332K and bringing the position to 14,638 shares worth $1.29M. The position accounts for 0.07% of the portfolio, ranked #294.

PDT Partners first reported a position in APH in Q3 2013 and has held it in 17 quarters since. The position peaked at $5.34M in Q4 2025. 2,335 funds tracked by Wall St. Rank hold APH as of Q2 2026.

  • PDT Partners held 14,638 shares of Amphenol worth $1.29M as of Q2 2026.
  • PDT Partners bought 4,600 Amphenol shares in Q2 2026, an estimated $332K.
  • Amphenol made up 0.07% of PDT Partners's portfolio in Q2 2026, its #294 holding.
  • PDT Partners first reported a position in Amphenol in Q3 2013 and has held it in 17 quarters since.
  • PDT Partners's Amphenol position peaked at $5.34M in Q4 2025.
  • 2,335 funds tracked by Wall St. Rank held Amphenol as of Q2 2026.

Based on PDT Partners's 13F filing for Q2 2026, filed 14 Aug 2026.