Ticker · CUSIP 032095101

APH

AMPHENOL CORP NEW
Technology·Electronic Components
···Share
Holders (tracked)
24
Combined shares
87,769,560
Combined value
$6.74B
Last close
$148.96
Quarter
2025Q4
Tracked holders · last 8 quarters
+6 vs previous quarter over the last 8.
24162024Q12025Q4
Price is +93.9% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

30 events
  1. Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
    −178,788 shares · 2025Q4
    13F
  2. Ken Griffin (Citadel Advisors) trimmed2026-02-17
    −1,585,041 shares · 2025Q4
    13F
  3. D.E. Shaw & Co. trimmed2026-02-17
    −1,690,383 shares · 2025Q4
    13F
  4. Two Sigma Investments trimmed2026-02-17
    −115,953 shares · 2025Q4
    13F
  5. AQR Capital Management trimmed2026-02-17
    −222,851 shares · 2025Q4
    13F
  6. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −742,402 shares · 2025Q4
    13F
  7. Steve Cohen (Point72) added2026-02-17
    +1,020,208 shares · 2025Q4
    13F
  8. T. Rowe Price trimmed2026-02-17
    −6,148,762 shares · 2025Q4
    13F
  9. Jeremy Grantham (GMO) added2026-02-17
    +36 shares · 2025Q4
    13F
  10. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +35,800 shares · 2025Q4
    13F
  11. Stephen Mandel (Lone Pine Capital) trimmed2026-02-17
    −213,458 shares · 2025Q4
    13F
  12. Wellington Management added2026-02-17
    +3,576,596 shares · 2025Q4
    13F
  13. Ray Dalio (Bridgewater Associates) added2026-02-13
    +63,101 shares · 2025Q4
    13F
  14. Sands Capital Management added2026-02-13
    +83,770 shares · 2025Q4
    13F
  15. Norges Bank (Norway SWF) opened position2026-02-10
    +22,585,063 shares · 2025Q4
    13F
  16. Ken Fisher (Fisher Asset Mgmt) added2026-02-09
    +1,537 shares · 2025Q4
    13F
  17. Mario Gabelli (GAMCO) opened position2026-02-05
    +36,366 shares · 2025Q4
    13F
  18. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −437,471 shares · 2025Q3
    13F
  19. Steve Cohen (Point72) trimmed2025-11-14
    −1,093,931 shares · 2025Q3
    13F
  20. Two Sigma Investments trimmed2025-11-14
    −1,667,973 shares · 2025Q3
    13F
  21. D.E. Shaw & Co. trimmed2025-11-14
    −2,418,745 shares · 2025Q3
    13F
  22. AQR Capital Management added2025-11-14
    +716,889 shares · 2025Q3
    13F
  23. Stephen Mandel (Lone Pine Capital) opened position2025-11-14
    +3,023,231 shares · 2025Q3
    13F
  24. T. Rowe Price added2025-11-14
    +2,398,815 shares · 2025Q3
    13F
  25. Wellington Management trimmed2025-11-14
    −1,520,468 shares · 2025Q3
    13F
  26. Ron Baron (Baron Capital / BAMCO) added2025-11-14
    +500 shares · 2025Q3
    13F
  27. Izzy Englander (Millennium Mgmt) trimmed2025-11-14
    −352,152 shares · 2025Q3
    13F
  28. Norges Bank (Norway SWF) exited2025-11-13
    −21,308,798 shares · 2025Q3
    13F
  29. Ray Dalio (Bridgewater Associates) opened position2025-11-13
    +735,263 shares · 2025Q3
    13F
  30. Jeremy Grantham (GMO) opened position2025-11-13
    +10,261 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
View full insider history for APH →
Follow-the-investor returns
If you'd copied each holder of APH…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$13.42+1010.4%$5.65B
Jeremy Grantham (GMO)2016Q1$63.50+134.6%$1.5M
Sands Capital Management2025Q1$72.57+105.3%$130.9M
Ron Baron (Baron Capital / BAMCO)2019Q2$74.95+98.7%$254.8M
AQR Capital Management2016Q1$75.91+96.2%$534.5M
Wellington Management2016Q1$84.11+77.1%$1.85B
Ken Fisher (Fisher Asset Mgmt)2016Q1$89.70+66.1%$855K
Two Sigma Investments2018Q2$97.90+52.2%$16.7M
Paul Tudor Jones (Tudor Investment)2016Q2$98.13+51.8%$1.5M
Paul Tudor Jones (Tudor Investment)2016Q2$98.13+51.8%$1.5M
D.E. Shaw & Co.2016Q3$98.64+51.0%$53.6M
Ken Griffin (Citadel Advisors)2016Q1$122.46+21.6%$78.0M
Ken Griffin (Citadel Advisors)2016Q1$122.46+21.6%$78.0M
Ken Griffin (Citadel Advisors)2016Q1$122.46+21.6%$78.0M
Ray Dalio (Bridgewater Associates)2016Q2$122.63+21.5%$118.9M
Stephen Mandel (Lone Pine Capital)2025Q3$123.75+20.4%$418.5M
Steve Cohen (Point72)2018Q1$133.78+11.3%$181.8M
Steve Cohen (Point72)2018Q1$133.78+11.3%$181.8M
Steve Cohen (Point72)2018Q1$133.78+11.3%$181.8M
Izzy Englander (Millennium Mgmt)2016Q1$134.52+10.7%$197.0M
Izzy Englander (Millennium Mgmt)2016Q1$134.52+10.7%$197.0M
Izzy Englander (Millennium Mgmt)2016Q1$134.52+10.7%$197.0M
Mario Gabelli (GAMCO)2025Q4$135.14+10.2%$5.4M
Norges Bank (Norway SWF)2016Q1$6226.84-97.6%$3.36B

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions3
Added to6
Trimmed8
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
14
$439.14B
2022Q2
15
$493.26B
2022Q3
18
$516.3M
2022Q4
18
$4.43B
2023Q1
17
$4.76B
2023Q2
12
$5.48B
2023Q3
16
$5.23B
2023Q4
14
$6.23B
2024Q1
16
$7.30B
2024Q2
26
$9.28B
2024Q3
20
$2.75B
2024Q4
17
$2.35B
2025Q1
17
$1.48B
2025Q2
21
$5.18B
2025Q3
18
$3.39B
2025Q4
24
$6.74B
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2025-09-23Valerie HoyleSell$1K – $15KPDF ↗
2025-04-10Byron DonaldsBuy$1K – $15KPDF ↗
2025-04-10Byron DonaldsBuy$1K – $15KPDF ↗
2025-04-08Rob BresnahanBuy$1K – $15KPDF ↗
2025-01-02James ComerBuy$1K – $15KPDF ↗
2024-10-29Valerie HoyleBuy$1K – $15KPDF ↗

Who owns APH

24 super-investors · 2025Q4
Tracked stake
87.77M
shares
Combined value
$6.74B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added8Trim12
#ManagerSharesValue
1Norges Bank
Norway SWF
22.59M$3.05B
2Wellington Management12.42M$1.68B
3AQR Capital Management3.59M$485M
4Stephen Mandel
Lone Pine Capital
2.81M$380M
5Ron Baron
Baron Capital / BAMCO
1.71M$231M
6Izzy Englander
Millennium Mgmt
1.32M$179M
7Steve Cohen
Point72
1.22M$165M
8Sands Capital Management879.0K$119M
9Ray Dalio
Bridgewater Associates
798.4K$108M
10Ken Griffin
Citadel Advisors
624.1K$84M
11Ken Griffin
Citadel Advisors
523.3K$71M
12Ken Griffin
Citadel Advisors
378.9K$51M
13D.E. Shaw & Co.359.7K$49M
14Steve Cohen
Point72
167.5K$23M
15Steve Cohen
Point72
142.1K$19M
16Two Sigma Investments112.1K$15M
17Izzy Englander
Millennium Mgmt
62.9K$9M
18Izzy Englander
Millennium Mgmt
54.2K$7M
19T. Rowe Price37.92M$5M
20Mario Gabelli
GAMCO
36.4K$5M
21Paul Tudor Jones
Tudor Investment
25.6K$3M
22Jeremy Grantham
GMO
10.3K$1M
23Paul Tudor Jones
Tudor Investment
10.2K$1M
24Ken Fisher
Fisher Asset Mgmt
5.7K$776K

Recent moves

20 transactions
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