VANGUARD GROUP INC
Rank #1
10.2%
- Shares
- 126.55M
- Change
- +1.32M
- Change %
- +106.00%
- Filing
- Dec 31, 2025
Increased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NYSE · TECHNOLOGY · Holders
Amphenol Corporation (APH) Institutional Ownership & Insider Trading History
Top APH institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Price Jun 23, 4:00 PM EDT · Statements Mar 30, 8:00 PM EDT
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Data freshness
Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
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Provider checked •
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Provider checked •
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Newsevery 15 min
Latest item •
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Ownership read
APH insider sentiment: Mixed, sale-heavy.
VANGUARD GROUP INC is the largest institutional holder. 66 sales and 54 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
APH
Purchases4.60M
Sales6.70M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
126.55M
VANGUARD GROUP INC
Insider stance
Mixed, sale-heavy
$403.08M sold / $80.40M bought
Latest filing
May 22, 2026
Most recent holder or insider filing date
Filings shown
240
120 holder / 120 insider
- Holder rows
- 120
- Market data source
- Latest filing
- May 22, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 64
- 56 decreased
- Insider rows
- 120
- Market data source
Top 120 institutional holders
Amphenol Corporation (APH) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where ownership data supplies them.
BLACKROCK
Rank #2
8.25%
- Shares
- 101.97M
- Change
- -4.17M
- Change %
- -3.93%
- Filing
- Mar 31, 2026
Decreased
VANGUARD CAPITAL MANAGEMENT LLC
Rank #3
6.47%
- Shares
- 79.88M
- Change
- +79.88M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
FMR LLC
Rank #4
6.43%
- Shares
- 79.48M
- Change
- -6.94M
- Change %
- -8.03%
- Filing
- Mar 31, 2026
Decreased
STATE STREET CORP
Rank #5
4.65%
- Shares
- 57.40M
- Change
- +482.82K
- Change %
- +85.00%
- Filing
- Mar 31, 2026
Increased
JPMORGAN CHASE & CO
Rank #6
3.99%
- Shares
- 49.27M
- Change
- +14.95M
- Change %
- +43.54%
- Filing
- Mar 31, 2026
Increased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #7
2.90%
- Shares
- 35.85M
- Change
- +35.85M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
CAPITAL INTERNATIONAL INVESTORS
Rank #8
2.86%
- Shares
- 35.33M
- Change
- +11.65M
- Change %
- +49.21%
- Filing
- Mar 31, 2026
Increased
GEODE CAPITAL MANAGEMENT
Rank #9
2.53%
- Shares
- 31.30M
- Change
- +977.32K
- Change %
- +3.22%
- Filing
- Mar 31, 2026
Increased
CAPITAL RESEARCH GLOBAL INVESTORS
Rank #10
2.16%
- Shares
- 26.63M
- Change
- +10.17M
- Change %
- +61.82%
- Filing
- Mar 31, 2026
Increased
PRICE T ROWE ASSOCIATES INC
Rank #11
2.12%
- Shares
- 26.19M
- Change
- -11.74M
- Change %
- -30.95%
- Filing
- Mar 31, 2026
Decreased
NORGES BANK
Rank #12
1.83%
- Shares
- 22.59M
- Change
- +1.28M
- Change %
- +5.99%
- Filing
- Dec 31, 2025
Increased
BANK OF AMERICA CORP
Rank #13
1.67%
- Shares
- 20.68M
- Change
- -1.28M
- Change %
- -5.84%
- Filing
- Mar 31, 2026
Decreased
MORGAN STANLEY
Rank #14
1.42%
- Shares
- 17.51M
- Change
- -673.50K
- Change %
- -3.70%
- Filing
- Mar 31, 2026
Decreased
BANK OF NEW YORK MELLON CORP
Rank #15
1.32%
- Shares
- 16.31M
- Change
- -1.40M
- Change %
- -7.89%
- Filing
- Mar 31, 2026
Decreased
WELLINGTON MANAGEMENT GROUP LLP
Rank #16
1.21%
- Shares
- 15.00M
- Change
- +2.58M
- Change %
- +20.79%
- Filing
- Mar 31, 2026
Increased
MASSACHUSETTS FINANCIAL SERVICES CO
Rank #17
1.13%
- Shares
- 13.96M
- Change
- -1.95M
- Change %
- -12.24%
- Filing
- Mar 31, 2026
Decreased
NORTHERN TRUST CORP
Rank #18
1.09%
- Shares
- 13.47M
- Change
- -40.73K
- Change %
- -30.00%
- Filing
- Mar 31, 2026
Decreased
NUVEEN
Rank #19
1.06%
- Shares
- 13.12M
- Change
- +5.32M
- Change %
- +68.24%
- Filing
- Mar 31, 2026
Increased
ARROWSTREET CAPITAL
Rank #20
0.96%
- Shares
- 11.88M
- Change
- +26.17K
- Change %
- +22.00%
- Filing
- Mar 31, 2026
Increased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | 10.2% | 126.55M | +1.32M Increased | +106.00% | Dec 31, 2025 | |
| 2 | 8.25% | 101.97M | -4.17M Decreased | -3.93% | Mar 31, 2026 | |
| 3 | 6.47% | 79.88M | +79.88M Initiated | — | Mar 31, 2026 | |
| 4 | 6.43% | 79.48M | -6.94M Decreased | -8.03% | Mar 31, 2026 | |
| 5 | 4.65% | 57.40M | +482.82K Increased | +85.00% | Mar 31, 2026 | |
| 6 | 3.99% | 49.27M | +14.95M Increased | +43.54% | Mar 31, 2026 | |
| 7 | 2.90% | 35.85M | +35.85M Initiated | — | Mar 31, 2026 | |
| 8 | CAPITAL INTERNATIONAL INVESTORS | 2.86% | 35.33M | +11.65M Increased | +49.21% | Mar 31, 2026 |
| 9 | 2.53% | 31.30M | +977.32K Increased | +3.22% | Mar 31, 2026 | |
| 10 | 2.16% | 26.63M | +10.17M Increased | +61.82% | Mar 31, 2026 | |
| 11 | 2.12% | 26.19M | -11.74M Decreased | -30.95% | Mar 31, 2026 | |
| 12 | 1.83% | 22.59M | +1.28M Increased | +5.99% | Dec 31, 2025 | |
| 13 | 1.67% | 20.68M | -1.28M Decreased | -5.84% | Mar 31, 2026 | |
| 14 | 1.42% | 17.51M | -673.50K Decreased | -3.70% | Mar 31, 2026 | |
| 15 | BANK OF NEW YORK MELLON CORP | 1.32% | 16.31M | -1.40M Decreased | -7.89% | Mar 31, 2026 |
| 16 | 1.21% | 15.00M | +2.58M Increased | +20.79% | Mar 31, 2026 | |
| 17 | MASSACHUSETTS FINANCIAL SERVICES CO | 1.13% | 13.96M | -1.95M Decreased | -12.24% | Mar 31, 2026 |
| 18 | 1.09% | 13.47M | -40.73K Decreased | -30.00% | Mar 31, 2026 | |
| 19 | NUVEEN | 1.06% | 13.12M | +5.32M Increased | +68.24% | Mar 31, 2026 |
| 20 | ARROWSTREET CAPITAL | 0.96% | 11.88M | +26.17K Increased | +22.00% | Mar 31, 2026 |
Showing 20 of 120 matching institutional rows.Load more institutions
Recent insider transactions
Amphenol Corporation (APH) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
WALTER, LUC
President, HES Division
- Shares
- 108.81K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
LAMBA, SANJIV
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
LANE, RITA S.
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
LIVINGSTON, ROBERT
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
FALCK, DAVID P
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
ALTOBELLO, NANCY A.
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
SINGH, PRAHLAD R.
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
WOLFF, ANNE CLARKE
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
D'AMICO, LANCE E
EVP, Secretary & GenCounsel
- Shares
- 83.02K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
DOHERTY, WILLIAM J
President, CS Division
- Shares
- 108.81K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
IVAS, MICHAEL R.
SVP & Corporate Controller
- Shares
- 51.13K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
LAMPO, CRAIG A
Executive VP & CFO
- Shares
- 133.16K
- % company
- 0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 464.99K
- % company
- 0.04%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
SILVERMAN, DAVID M
EVP, Human Resources
- Shares
- 70.69K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
STRAUB, PETER
President, ISS Division
- Shares
- 108.81K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 22, 2026
D'AMICO, LANCE E
EVP, Secretary & GenCounsel
- Shares
- 43.09K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 20, 2026
LAMPO, CRAIG A
Executive VP & CFO
- Shares
- 41.20K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 20, 2026
D'AMICO, LANCE E
EVP, Secretary & GenCounsel
- Shares
- 21.51K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 20, 2026
D'AMICO, LANCE E
EVP, Secretary & GenCounsel
- Shares
- 21.51K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 20, 2026
D'AMICO, LANCE E
EVP, Secretary & GenCounsel
- Shares
- 43.09K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 20, 2026
LAMPO, CRAIG A
Executive VP & CFO
- Shares
- 69.11K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 19, 2026
LAMPO, CRAIG A
Executive VP & CFO
- Shares
- 34.50K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 19, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 17.50K
- % company
- <0.01%
- Price
- $143.21
- Value
- $2,506,107
Filed May 5, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 17.50K
- % company
- <0.01%
- Price
- $22.37
- Value
- $391,519
Filed May 5, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 17.50K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 5, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 52.20K
- % company
- <0.01%
- Price
- $142.04
- Value
- $7,414,998
Filed May 4, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 52.20K
- % company
- <0.01%
- Price
- $22.37
- Value
- $1,167,912
Filed May 4, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 52.20K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 4, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 61.07K
- % company
- <0.01%
- Price
- $143.90
- Value
- $8,787,962
Filed May 1, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 61.07K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 1, 2026
NORWITT, RICHARD ADAM
Director, President & CEO
- Shares
- 61.07K
- % company
- <0.01%
- Price
- $22.37
- Value
- $1,366,333
Filed May 1, 2026
LAMPO, CRAIG A
Executive VP & CFO
- Shares
- 100.00K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Feb 18, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | WALTER, LUC President, HES Division | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 108.81K | Not reported | Not reported | May 22, 2026 |
| 2 | LAMBA, SANJIV Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 3 | LANE, RITA S. Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 4 | LIVINGSTON, ROBERT Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 5 | FALCK, DAVID P Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 6 | ALTOBELLO, NANCY A. Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 7 | SINGH, PRAHLAD R. Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 8 | WOLFF, ANNE CLARKE Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 1.55K | Not reported | Not reported | May 22, 2026 |
| 9 | D'AMICO, LANCE E EVP, Secretary & GenCounsel | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 83.02K | Not reported | Not reported | May 22, 2026 |
| 10 | DOHERTY, WILLIAM J President, CS Division | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 108.81K | Not reported | Not reported | May 22, 2026 |
| 11 | IVAS, MICHAEL R. SVP & Corporate Controller | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 51.13K | Not reported | Not reported | May 22, 2026 |
| 12 | LAMPO, CRAIG A Executive VP & CFO | 0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 133.16K | Not reported | Not reported | May 22, 2026 |
| 13 | NORWITT, RICHARD ADAM Director, President & CEO | 0.04% | PurchaseOpen-market or direct purchase reported on Form 4. | 464.99K | Not reported | Not reported | May 22, 2026 |
| 14 | SILVERMAN, DAVID M EVP, Human Resources | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 70.69K | Not reported | Not reported | May 22, 2026 |
| 15 | STRAUB, PETER President, ISS Division | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 108.81K | Not reported | Not reported | May 22, 2026 |
| 16 | D'AMICO, LANCE E EVP, Secretary & GenCounsel | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 43.09K | Not reported | Not reported | May 20, 2026 |
| 17 | LAMPO, CRAIG A Executive VP & CFO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 41.20K | Not reported | Not reported | May 20, 2026 |
| 18 | D'AMICO, LANCE E EVP, Secretary & GenCounsel | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 21.51K | Not reported | Not reported | May 20, 2026 |
| 19 | D'AMICO, LANCE E EVP, Secretary & GenCounsel | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 21.51K | Not reported | Not reported | May 20, 2026 |
| 20 | D'AMICO, LANCE E EVP, Secretary & GenCounsel | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 43.09K | Not reported | Not reported | May 20, 2026 |
| 21 | LAMPO, CRAIG A Executive VP & CFO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 69.11K | Not reported | Not reported | May 19, 2026 |
| 22 | LAMPO, CRAIG A Executive VP & CFO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 34.50K | Not reported | Not reported | May 19, 2026 |
| 23 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 17.50K | $143.21 | $2,506,107 | May 5, 2026 |
| 24 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 17.50K | $22.37 | $391,519 | May 5, 2026 |
| 25 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 17.50K | Not reported | Not reported | May 5, 2026 |
| 26 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 52.20K | $142.04 | $7,414,998 | May 4, 2026 |
| 27 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 52.20K | $22.37 | $1,167,912 | May 4, 2026 |
| 28 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 52.20K | Not reported | Not reported | May 4, 2026 |
| 29 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 61.07K | $143.90 | $8,787,962 | May 1, 2026 |
| 30 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 61.07K | Not reported | Not reported | May 1, 2026 |
| 31 | NORWITT, RICHARD ADAM Director, President & CEO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 61.07K | $22.37 | $1,366,333 | May 1, 2026 |
| 32 | LAMPO, CRAIG A Executive VP & CFO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 100.00K | Not reported | Not reported | Feb 18, 2026 |
Showing 32 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest APH shareholders?
VANGUARD GROUP INC is the largest institutional holder of APH, with 126.55 million shares, or about 10.24% of shares outstanding. Additional institutions are ranked by reported share count.
What is institutional ownership of APH?
Amphenol Corporation (APH) has 120 institutional holders on file — 64 that increased or initiated positions and 56 that reduced them, as of the latest filing on Mar 31, 2026.
Where can I see Amphenol Corporation insider transactions?
Amphenol Corporation (APH) has 120 Form 4 insider transactions on file, most recently on May 22, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.
Are APH insiders buying or selling?
Recent APH insider activity reads Mixed, sale-heavy: 66 sales and 54 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.
Who is the most active APH insider?
NORWITT, RICHARD ADAM is the most active APH insider by absolute share movement, with 2.98 million shares moving across the filing history. Review the action labels before treating that activity as buying or selling.