William Blair & Company’s Amphenol APH Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $442M | Sell |
5,008,818
-31,820
| -0.6% | -$2.29M | 1.15% | 13 |
|
|
2026
Q1 | $318M | Sell |
5,040,638
-267,144
| -5% | -$18.8M | 0.91% | 17 |
|
|
2025
Q4 | $359M | Sell |
5,307,782
-195,246
| -4% | -$13.1M | 0.96% | 15 |
|
|
2025
Q3 | $340M | Sell |
5,503,028
-439,868
| -7% | -$24.1M | 0.91% | 20 |
|
|
2025
Q2 | $293M | Sell |
5,942,896
-111,804
| -2% | -$4.57M | 0.82% | 23 |
|
|
2025
Q1 | $199M | Sell |
6,054,700
-85,688
| -1% | -$2.92M | 0.6% | 46 |
|
|
2024
Q4 | $213M | Sell |
6,140,388
-44,992
| -0.7% | -$1.57M | 0.62% | 44 |
|
|
2024
Q3 | $202M | Sell |
6,185,380
-79,588
| -1% | -$2.58M | 0.59% | 47 |
|
|
2024
Q2 | $211M | Buy |
6,264,968
+119,472
| +2% | +$3.77M | 0.65% | 35 |
|
|
2024
Q1 | $177M | Buy |
6,145,496
+16,996
| +0.3% | +$445K | 0.56% | 46 |
|
|
2023
Q4 | $152M | Sell |
6,128,500
-50,580
| -0.8% | -$1.12M | 0.52% | 48 |
|
|
2023
Q3 | $130M | Buy |
6,179,080
+1,456
| +0% | +$31.3K | 0.5% | 47 |
|
|
2023
Q2 | $131M | Buy |
6,177,624
+42,428
| +0.7% | +$824K | 0.48% | 50 |
|
|
2023
Q1 | $125M | Buy |
6,135,196
+9,492
| +0.2% | +$187K | 0.5% | 48 |
|
|
2022
Q4 | $117M | Buy |
6,125,704
+58,536
| +1% | +$1.11M | 0.51% | 46 |
|
|
2022
Q3 | $102M | Sell |
6,067,168
-29,100
| -0.5% | -$528K | 0.47% | 51 |
|
|
2022
Q2 | $98.1M | Sell |
6,096,268
-31,160
| -0.5% | -$542K | 0.44% | 53 |
|
|
2022
Q1 | $115M | Sell |
6,127,428
-25,612
| -0.4% | -$496K | 0.4% | 57 |
|
|
2021
Q4 | $135M | Buy |
6,153,040
+52,164
| +0.9% | +$1.06M | 0.42% | 53 |
|
|
2021
Q3 | $112M | Sell |
6,100,876
-55,836
| -0.9% | -$1.03M | 0.38% | 60 |
|
|
2021
Q2 | $105M | Sell |
6,156,712
-98,172
| -2% | -$1.66M | 0.36% | 62 |
|
|
2021
Q1 | $103M | Sell |
6,254,884
-148,188
| -2% | -$2.41M | 0.39% | 59 |
|
|
2020
Q4 | $105M | Buy |
6,403,072
+208,560
| +3% | +$3.2M | 0.38% | 60 |
|
|
2020
Q3 | $83.8M | Sell |
6,194,512
-167,560
| -3% | -$2.21M | 0.36% | 61 |
|
|
2020
Q2 | $76.2M | Buy |
6,362,072
+25,160
| +0.4% | +$281K | 0.36% | 61 |
|
|
2020
Q1 | $57.7M | Sell |
6,336,912
-54,464
| -0.9% | -$649K | 0.36% | 61 |
|
|
2019
Q4 | $86.5M | Sell |
6,391,376
-56,264
| -0.9% | -$718K | 0.44% | 54 |
|
|
2019
Q3 | $77.8M | Sell |
6,447,640
-76,696
| -1% | -$884K | 0.45% | 54 |
|
|
2019
Q2 | $78.2M | Sell |
6,524,336
-122,072
| -2% | -$1.47M | 0.45% | 55 |
|
|
2019
Q1 | $78.5M | Sell |
6,646,408
-261,440
| -4% | -$2.92M | 0.48% | 50 |
|
|
2018
Q4 | $70M | Sell |
6,907,848
-104,536
| -1% | -$1.12M | 0.51% | 48 |
|
|
2018
Q3 | $82.4M | Sell |
7,012,384
-193,624
| -3% | -$2.25M | 0.5% | 48 |
|
|
2018
Q2 | $78.5M | Sell |
7,206,008
-147,384
| -2% | -$1.6M | 0.53% | 47 |
|
|
2018
Q1 | $79.2M | Sell |
7,353,392
-138,808
| -2% | -$1.56M | 0.56% | 44 |
|
|
2017
Q4 | $82.2M | Sell |
7,492,200
-101,664
| -1% | -$1.12M | 0.56% | 44 |
|
|
2017
Q3 | $80.3M | Sell |
7,593,864
-242,832
| -3% | -$2.39M | 0.6% | 38 |
|
|
2017
Q2 | $72.3M | Sell |
7,836,696
-112,360
| -1% | -$1.03M | 0.54% | 48 |
|
|
2017
Q1 | $70.6M | Buy |
7,949,056
+167,296
| +2% | +$1.45M | 0.57% | 42 |
|
|
2016
Q4 | $65.4M | Sell |
7,781,760
-64,408
| -0.8% | -$536K | 0.58% | 44 |
|
|
2016
Q3 | $63.7M | Sell |
7,846,168
-81,992
| -1% | -$623K | 0.56% | 48 |
|
|
2016
Q2 | $56.8M | Sell |
7,928,160
-72,800
| -0.9% | -$524K | 0.53% | 54 |
|
|
2016
Q1 | $57.8M | Buy |
8,000,960
+172,952
| +2% | +$1.12M | 0.54% | 53 |
|
|
2015
Q4 | $51.1M | Buy |
7,828,008
+413,392
| +6% | +$2.76M | 0.48% | 65 |
|
|
2015
Q3 | $47.2M | Buy |
7,414,616
+48,872
| +0.7% | +$328K | 0.41% | 71 |
|
|
2015
Q2 | $53.4M | Sell |
7,365,744
-241,336
| -3% | -$1.73M | 0.08% | 328 |
|
|
2015
Q1 | $56M | Sell |
7,607,080
-5,640
| -0.1% | -$39.5K | 0.09% | 301 |
|
|
2014
Q4 | $51.2M | Sell |
7,612,720
-182,304
| -2% | -$1.17M | 0.08% | 327 |
|
|
2014
Q3 | $48.6M | Sell |
7,795,024
-9,290,304
| -54% | -$58.2M | 0.08% | 318 |
|
|
2014
Q2 | $103M | Sell |
17,085,328
-1,796,240
| -10% | -$10.7M | 0.17% | 180 |
|
|
2014
Q1 | $108M | Sell |
18,881,568
-3,232,784
| -15% | -$18M | 0.18% | 174 |
|
|
2013
Q4 | $123M | Sell |
22,114,352
-376,496
| -2% | -$1.95M | 0.2% | 146 |
|
|
2013
Q3 | $109M | Sell |
22,490,848
-1,512,816
| -6% | -$7.39M | 0.19% | 155 |
|
|
2013
Q2 | $117M | Buy |
+24,003,664
| New | +$115M | 0.23% | 118 |
|
Other funds holding APH
William Blair & Company's APH Position: Q2 2026 in Review
William Blair & Company reduced its Amphenol (APH) stake by 0.63% in Q2 2026, selling an estimated $2.29M and leaving 5,008,818 shares worth $442M. The position accounts for 1.15% of the portfolio, ranked #13.
William Blair & Company first reported a position in APH in Q2 2013 and has held it in 53 quarters since. 2,327 funds tracked by Wall St. Rank hold APH as of Q2 2026.
- William Blair & Company held 5,008,818 shares of Amphenol worth $442M as of Q2 2026.
- William Blair & Company sold 31,820 Amphenol shares in Q2 2026, an estimated $2.29M.
- Amphenol made up 1.15% of William Blair & Company's portfolio in Q2 2026, its #13 holding.
- William Blair & Company first reported a position in Amphenol in Q2 2013 and has held it in 53 quarters since.
- 2,327 funds tracked by Wall St. Rank held Amphenol as of Q2 2026.
Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.