Amphenol
APH
2,058 hedge funds and large institutions have $157B invested in Amphenol in 2025 Q4 according to their latest regulatory filings, with 344 funds opening new positions, 781 increasing their positions, 747 reducing their positions, and 84 closing their positions.
310% more first-time investments, than exits
New positions opened: 344 | Existing positions closed: 84
13% more funds holding
Funds holding: 1,829 → 2,058 (+229)
11% more capital invested
Capital invested by funds: $141B → $157B (+$15.6B)
6% more funds holding in top 10
Funds holding in top 10: 93 → 99 (+6)
1.31% more ownership
Funds ownership: 93.35% → 94.66% (+1.3%)
5% more repeat investments, than reductions
Existing positions increased: 781 | Existing positions reduced: 747
15% less call options, than puts
Call options by funds: $643M | Put options by funds: $753M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
+$2.33B |
| 2 |
Jennison Associates
New York
|
+$1.06B |
| 3 |
Capital International Investors
Los Angeles,
California
|
+$759M |
| 4 |
BlackRock
New York
|
+$708M |
| 5 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$612M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$1.79B |
| 2 |
Bank of New York Mellon
New York
|
-$841M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$822M |
| 4 |
Goldman Sachs
New York
|
-$486M |
| 5 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$351M |
APH Hedge Fund Activity: Q4 2025 in Review
2,058 of the 8,284 institutional investors tracked by Wall St. Rank reported a position in Amphenol (APH) for Q4 2025, worth a combined $157B — up 11% from $141B a quarter earlier.
Buyers outnumbered sellers: 344 funds opened new APH positions and 84 closed out — a net gain of 260 holders — while 781 added to existing stakes and 747 trimmed.
The largest buyer was JP Morgan Chase, adding an estimated $2.33B. The largest seller was Fidelity Investments, cutting an estimated $1.79B.
- 2,058 institutional investors held Amphenol (APH) as of Q4 2025, up from 1,829 in Q3 2025.
- Funds reported $157B of Amphenol stock for Q4 2025, up 11% quarter-over-quarter.
- 344 funds opened new Amphenol positions in Q4 2025 and 84 closed out, a net change of +260 holders.
- The largest Amphenol buyer in Q4 2025 was JP Morgan Chase, an estimated $2.33B added.
- The largest Amphenol seller in Q4 2025 was Fidelity Investments, an estimated $1.79B sold.
Based on aggregated 13F filings for Q4 2025.