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Amphenol

2,125 hedge funds and large institutions have $145B invested in Amphenol in 2026 Q1 according to their latest regulatory filings, with 254 funds opening new positions, 866 increasing their positions, 813 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

76% more first-time investments, than exits

New positions opened: 254 | Existing positions closed: 144

4% more funds holding

Funds holding: 2,0532,125 (+72)

7% more repeat investments, than reductions

Existing positions increased: 866 | Existing positions reduced: 813

7.11% less ownership

Funds ownership: 100.94%93.83% (-7.1%)

14% less funds holding in top 10

Funds holding in top 10: 9985 (-14)

38% less capital invested

Capital invested by funds: $233B → $145B (-$88B)

45% less call options, than puts

Call options by funds: $604M | Put options by funds: $1.1B

Holders
2,125
Holders Change
+72
Holders Change %
+3.51%
% of All Funds
26%
Holding in Top 10
85
Holding in Top 10 Change
-14
Holding in Top 10 Change %
-14.14%
% of All Funds
1.04%
New
254
Increased
866
Reduced
813
Closed
144
Calls
$604M
Puts
$1.1B
Net Calls
-$501M
Net Calls Change
-$391M
Name Holding Trade Value Shares
Change
Change in
Stake
Mariner
176
Mariner
Kansas
$85.3M +$5.91M +41,990 +7%
CG
177
Carmignac Gestion
France
$84.6M -$73.9M -524,964 -44%
SCM
178
Snyder Capital Management
California
$84.3M -$26.8M -190,144 -22%
FAF
179
Fjarde Ap-fonden
Sweden
$83.9M +$31.9M +226,550 +52%
State of Wisconsin Investment Board
180
State of Wisconsin Investment Board
Wisconsin
$83.3M +$3.71M +26,325 +4%
T. Rowe Price Investment Management
181
T. Rowe Price Investment Management
Maryland
$82.8M -$1.34B -9,506,851 -94%
Rockefeller Capital Management
182
Rockefeller Capital Management
New York
$81.7M +$15.2M +108,083 +20%
Creative Planning
183
Creative Planning
Kansas
$81M +$3.05M +21,685 +4%
CTB
184
Country Trust Bank
Illinois
$79.6M -$6.49M -46,123 -7%
Pictet Asset Management
185
Pictet Asset Management
Switzerland
$79.5M +$12.6M +89,454 +17%
PCH
186
Polar Capital Holdings
United Kingdom
$79.1M -$31.8M -226,199 -27%
Macquarie Group
187
Macquarie Group
Australia
$78M -$28M -198,596 -24%
Tudor Investment Corp
188
Tudor Investment Corp
Connecticut
$77.6M +$86.4M +613,970 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
189
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$77.6M +$79.6M +565,432 +1,169%
Chevy Chase Trust
190
Chevy Chase Trust
Maryland
$77.2M -$1.48M -10,500 -2%
US Bancorp
191
US Bancorp
Minnesota
$77M -$3.1M -22,026 -3%
BMSSC
192
B. Metzler seel. Sohn & Co
Germany
$76.2M -$1.81M -12,887 -2%
Fiera Capital (Canada)
193
Fiera Capital (Canada)
Quebec, Canada
$74.8M -$47.9M -340,513 -37%
Thrivent Financial for Lutherans
194
Thrivent Financial for Lutherans
Minnesota
$74.7M -$8.05M -57,180 -9%
Asset Management One
195
Asset Management One
Japan
$73.3M +$4.3M +30,553 +6%
Renaissance Technologies
196
Renaissance Technologies
New York
$72.5M +$80.8M +574,100 New
Vanguard Investments Australia
197
Vanguard Investments Australia
Australia
$72.2M +$80.4M +571,362 New
SO
198
STRS Ohio
Ohio
$71.8M -$157K -1,117 -0.2%
WP
199
Woodline Partners
California
$71.5M -$86.9M -617,266 -52%
ZIG
200
Zurich Insurance Group
Switzerland
$71.1M +$38.8M +275,805 +96%

APH Hedge Fund Activity: Q1 2026 in Review

2,125 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Amphenol (APH) for Q1 2026, worth a combined $145B — down 38% from $233B a quarter earlier.

Buyers outnumbered sellers: 254 funds opened new APH positions and 144 closed out — a net gain of 110 holders — while 866 added to existing stakes and 813 trimmed.

The largest buyer was JP Morgan Chase, adding an estimated $2.1B. The largest seller was J. Stern & Co, cutting an estimated $10.7B.

  • 2,125 institutional investors held Amphenol (APH) as of Q1 2026, up from 2,053 in Q4 2025.
  • Funds reported $145B of Amphenol stock for Q1 2026, down 38% quarter-over-quarter.
  • 254 funds opened new Amphenol positions in Q1 2026 and 144 closed out, a net change of +110 holders.
  • The largest Amphenol buyer in Q1 2026 was JP Morgan Chase, an estimated $2.1B added.
  • The largest Amphenol seller in Q1 2026 was J. Stern & Co, an estimated $10.7B sold.

Based on aggregated 13F filings for Q1 2026.