VANGUARD GROUP INC
Rank #1
10.2%
- Shares
- 126.55M
- Change
- +1.32M
- Change %
- +1.06%
- 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 15, 10:31 AM EDT · Statements Mar 30, 8:00 PM EDT
Source timingDetailsHide
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
Last traded •
Source: Market data provider
Fundamentalsevery 1 day
Provider checked •
Source: Market data provider
Analystevery 1 day
Provider checked •
Source: Market data provider
Newsevery 4 hr
Latest item •
Source: Market data provider
Ownership read
APH insider sentiment: Net selling.
VANGUARD GROUP INC is the largest loaded institutional holder. 66 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
APH
Purchases—
Sales6.70M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
126.55M
VANGUARD GROUP INC
Insider stance
Net selling
$403.08M sold / — bought
Latest filing
May 22, 2026
Most recent holder or insider filing date
Rows loaded
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 in loaded rows
- 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
6.46%
- 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
4.64%
- 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
2.15%
- 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 | +1.06% | Dec 31, 2025 | |
| 2 | 8.25% | 101.97M | -4.17M Decreased | -3.93% | Mar 31, 2026 | |
| 3 | 6.46% | 79.88M | +79.88M Initiated | — | Mar 31, 2026 | |
| 4 | 6.43% | 79.48M | -6.94M Decreased | -8.03% | Mar 31, 2026 | |
| 5 | 4.64% | 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 | 2.15% | 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
- No cash value
- Value
- No cash value
Filed May 22, 2026
LAMBA, SANJIV
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
LANE, RITA S.
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
LIVINGSTON, ROBERT
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
FALCK, DAVID P
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
ALTOBELLO, NANCY A.
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
SINGH, PRAHLAD R.
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
WOLFF, ANNE CLARKE
Director
- Shares
- 1.55K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
D'AMICO, LANCE E
EVP, Secretary & GenCounsel
- Shares
- 83.02K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
DOHERTY, WILLIAM J
President, CS Division
- Shares
- 108.81K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
IVAS, MICHAEL R.
SVP & Corporate Controller
- Shares
- 51.13K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
LAMPO, CRAIG A
Executive VP & CFO
- Shares
- 133.16K
- % company
- 0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 22, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | WALTER, LUC President, HES Division | <0.01% | Award / grant | 108.81K | No cash value | No cash value | May 22, 2026 |
| 2 | LAMBA, SANJIV Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 3 | LANE, RITA S. Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 4 | LIVINGSTON, ROBERT Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 5 | FALCK, DAVID P Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 6 | ALTOBELLO, NANCY A. Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 7 | SINGH, PRAHLAD R. Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 8 | WOLFF, ANNE CLARKE Director | <0.01% | Award / grant | 1.55K | No cash value | No cash value | May 22, 2026 |
| 9 | D'AMICO, LANCE E EVP, Secretary & GenCounsel | <0.01% | Award / grant | 83.02K | No cash value | No cash value | May 22, 2026 |
| 10 | DOHERTY, WILLIAM J President, CS Division | <0.01% | Award / grant | 108.81K | No cash value | No cash value | May 22, 2026 |
| 11 | IVAS, MICHAEL R. SVP & Corporate Controller | <0.01% | Award / grant | 51.13K | No cash value | No cash value | May 22, 2026 |
| 12 | LAMPO, CRAIG A Executive VP & CFO | 0.01% | Award / grant | 133.16K | No cash value | No cash value | May 22, 2026 |
Showing 12 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 in the loaded APH ownership dataset, with 126.55 million shares, or about 10.24% of shares outstanding. The table ranks additional institutions by reported share count.
What is institutional ownership of APH?
The current TECHi snapshot has 120 loaded institutional rows for Amphenol Corporation. 64 rows are marked increased or initiated, while 56 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
Where can I see Amphenol Corporation insider transactions?
The insider transaction table currently shows 120 loaded Form 4 rows for APH, with the latest insider filing dated May 22, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
Are APH insiders buying or selling?
The loaded APH Form 4 rows currently read Net selling: 66 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
Who is the most active APH insider in the loaded filings?
NORWITT, RICHARD ADAM is the most active insider by absolute share movement in the loaded APH rows, with 2.98 million shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.