401k plan information for AMPHENOL CORPORATION & AFFILIATED COMPANIES

401k Sponsoring company profile

AMPHENOL CORPORATION & AFFILIATED COMPANIES has sponsored the creation of one or more 401k plans.

Company Name: AMPHENOL CORPORATION & AFFILIATED COMPANIES

Employer identification number (EIN): 222785165

Stock Holdings: ETF Holdings of AMPHENOL CORPORATION & AFFILIATED COMPANIES
NAIC Classification: 334410

The following addresses have been detected on the 401k submissions:

USA Mailing Address

358 HALL AVENUE

WALLINGFORD

06492

Date first seen: 2007-01-01

Date last seen: 2026-05-13

USA Mailing Address

358 HALL AVE.

WALLINGFORD

064923555

Date first seen: 2010-10-14

Date last seen: 2026-05-13

USA Location Address

358 HALL AVENUE

WALLINGFORD

06492

Date first seen: 2007-01-01

Date last seen: 2026-02-28

401k Sponsor USA Address

358 HALL AVENUE

WALLINGFORD

06492

Date first seen: 2007-01-01

Date last seen: 2025-09-25

USA 401k Admin Address

358 HALL AVENUE

WALLINGFORD

Date first seen: 2025-09-25

Date last seen: 2025-09-25

Sponsoring Company Events

Date	Description
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN to AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401(K) PLAN for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401(K) PLAN to AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION MASTER TRUST to PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION for plan ID 001
2026-05-20	222785165 Change of plan name detected from PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION to AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401K PLAN for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401K PLAN to AMPHENOL CORPORATION EMPLOYEE SAVINGS/401K PLAN for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS/401K PLAN to AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401K PLAN for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN to AMPHENOL AFFILIATED for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401(K) PLAN to AMPHENOL EE DEFERRAL for plan ID 016
2026-05-20	222785165 Change of plan name detected from AMPHENOL AFFILIATED to AMPHENOL for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401K PLAN to AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401K PLAN for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401K PLAN to PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION MASTER TRUST to AMPHENOL CORPORATION MASTER RETIREMENT TRUST for plan ID 099
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION MASTER RETIREMENT TRUST to AMPHENOL CORPORATION MASTER TRUST for plan ID 099
2026-05-20	222785165 Change of plan name detected from AMPHENOL to AMPHENOL CORPORATION EMPLOYEE SAVINGS/401 (K) PLAN for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS/401 (K) PLAN to AMPHENOL CORPORATION EMPLOYEE SAVINGS 401K PLAN for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401(K) PLAN to AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401K PLAN for plan ID 015
2026-05-20	222785165 Change of plan name detected from AMPHENOL EE DEFERRAL to AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401K PLAN for plan ID 016
2026-05-20	222785165 Change of plan name detected from AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401K PLAN to AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401(K) PLAN for plan ID 015
2026-05-20	222785165 Change of plan name detected from AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401K PLAN to AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS 401K PLAN to AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401K PLAN to AMPHENOL EMPLOYEE DEFERRAL SAVINGS 401(K) PLAN for plan ID 016
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN to PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION for plan ID 001
2026-05-20	222785165 Change of plan name detected from PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION to AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN for plan ID 001
2026-05-20	222785165 Change of plan name detected from AMPHENOL CORPORATION EMPLOYEE SAVINGS/401(K) PLAN to AMPHENOL for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL to AMPHENOL AFFILIATED for plan ID 010
2026-05-20	222785165 Change of plan name detected from AMPHENOL AFFILIATED to AMPHENOL CORPORATION EMPLOYEE SAVINGS401 K PLAN for plan ID 010
2025-04-22	222785165 Change of plan name detected from PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION to AMPHENOL CORPORATION MASTER TRUST for plan ID 001

AMPHENOL CORPORATION & AFFILIATED COMPANIES 401k Plans

Plan id#	Plan Name	Plan Start Date	Plan Effective Date
099	AMPHENOL CORPORATION MASTER TRUST	2015-01-01	2021-01-01
502	AMPHENOL CORPORATION 125 BENEFIT PLAN	2012-01-01	1990-01-01
015	AMPHENOL AFFILIATED COMPANIES EMPLOYEE SAVINGS 401(K) PLAN	2015-01-01	2014-12-01
010	AMPHENOL CORPORATION EMPLOYEE SAVINGS401 K PLAN	2015-01-01	1990-01-01
001	PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION	2015-01-01	1987-01-01
501	GROUP EMPLOYEE BENEFITS PLAN OF AMPHENOL CORPORATION	2015-01-01	1990-04-28
014	AMPHENOL SUBSIDIARIES 401(K) PLAN	2016-01-01	2001-08-01
503	AMPHENOL CORPORATION & AFFILIATED COMPANIES HRA BENEFIT PLAN	2012-01-01	2011-01-01
004	PENSION PLAN FOR HOURLY-PAID EMPLOYEES OF TMS DIVISION	2009-01-01	1961-01-01
016	AMPHENOL EE DEFERRAL	2018-11-01	2018-11-01

401k Contributions

Contributions made to the plan for the plan year by employer(s) and employees. Schedule SB Part 4 Question 18. This is signed by an actuary:

Date Type of contribution Contribution Number of participants/employees Average contribution per participant
2018-01-25 Employer Contributions $ 76,839,380 1 $ 76,839,380
2018-01-25 Employee Contributions $ 76,839,380 1 $ 76,839,380
2017-09-01 Employer Contributions $ 15,000,000 763 $ 19,659
2017-09-01 Employee Contributions $ 15,000,000 763 $ 19,659
2016-09-02 Employer Contributions $ 15,000,000 501 $ 29,940
2016-09-02 Employee Contributions $ 15,000,000 501 $ 29,940
2015-09-10 Employer Contributions $ 14,535,000 166 $ 87,560
2015-09-10 Employee Contributions $ 14,535,000 166 $ 87,560
2015-07-09 Employer Contributions $ 465,000 166 $ 2,801
2015-07-09 Employee Contributions $ 465,000 166 $ 2,801
2014-09-10 Employer Contributions $ 7,474,000 1221 $ 6,121
2014-09-10 Employee Contributions $ 7,474,000 1221 $ 6,121
2014-07-14 Employer Contributions $ 3,737,000 1221 $ 3,061
2014-07-14 Employee Contributions $ 3,737,000 1221 $ 3,061
2014-04-14 Employer Contributions $ 10,000 1221 $ 8
2014-04-14 Employee Contributions $ 10,000 1221 $ 8
2014-04-11 Employer Contributions $ 318,000 1221 $ 260
2014-04-11 Employee Contributions $ 318,000 1221 $ 260
2013-09-03 Employer Contributions $ 8,142,000 3728 $ 2,184
2013-09-03 Employee Contributions $ 8,142,000 3728 $ 2,184
2013-07-01 Employer Contributions $ 2,883,000 3728 $ 773
2013-07-01 Employee Contributions $ 2,883,000 3728 $ 773
2013-04-11 Employer Contributions $ 592,000 3728 $ 159
2013-04-11 Employee Contributions $ 592,000 3728 $ 159
2012-09-12 Employer Contributions $ 1,469,000 992 $ 1,481
2012-09-12 Employee Contributions $ 1,469,000 992 $ 1,481
2012-07-15 Employer Contributions $ 4,126,000 992 $ 4,159
2012-07-15 Employee Contributions $ 4,126,000 992 $ 4,159
2012-04-15 Employer Contributions $ 4,126,000 992 $ 4,159
2012-04-15 Employee Contributions $ 4,126,000 992 $ 4,159
2012-03-20 Employer Contributions $ 5,100,000 992 $ 5,141
2012-03-20 Employee Contributions $ 5,100,000 992 $ 5,141
2012-01-13 Employer Contributions $ 3,672,000 992 $ 3,702
2012-01-13 Employee Contributions $ 3,672,000 992 $ 3,702
2010-09-08 Employer Contributions $ 11,620,000 446 $ 26,054
2010-09-08 Employee Contributions $ 11,620,000 446 $ 26,054
2010-07-12 Employer Contributions $ 2,860,000 446 $ 6,413
2010-07-12 Employee Contributions $ 2,860,000 446 $ 6,413
2010-06-02 Employer Contributions $ 520,000 446 $ 1,166
2010-06-02 Employee Contributions $ 520,000 446 $ 1,166

Date	Type of contribution	Contribution	Number of participants/employees	Average contribution per participant
2018-01-25	Employer Contributions	$ 76,839,380	1	$ 76,839,380
2018-01-25	Employee Contributions	$ 76,839,380	1	$ 76,839,380
2017-09-01	Employer Contributions	$ 15,000,000	763	$ 19,659
2017-09-01	Employee Contributions	$ 15,000,000	763	$ 19,659
2016-09-02	Employer Contributions	$ 15,000,000	501	$ 29,940
2016-09-02	Employee Contributions	$ 15,000,000	501	$ 29,940
2015-09-10	Employer Contributions	$ 14,535,000	166	$ 87,560
2015-09-10	Employee Contributions	$ 14,535,000	166	$ 87,560
2015-07-09	Employer Contributions	$ 465,000	166	$ 2,801
2015-07-09	Employee Contributions	$ 465,000	166	$ 2,801
2014-09-10	Employer Contributions	$ 7,474,000	1221	$ 6,121
2014-09-10	Employee Contributions	$ 7,474,000	1221	$ 6,121
2014-07-14	Employer Contributions	$ 3,737,000	1221	$ 3,061
2014-07-14	Employee Contributions	$ 3,737,000	1221	$ 3,061
2014-04-14	Employer Contributions	$ 10,000	1221	$ 8
2014-04-14	Employee Contributions	$ 10,000	1221	$ 8
2014-04-11	Employer Contributions	$ 318,000	1221	$ 260
2014-04-11	Employee Contributions	$ 318,000	1221	$ 260
2013-09-03	Employer Contributions	$ 8,142,000	3728	$ 2,184
2013-09-03	Employee Contributions	$ 8,142,000	3728	$ 2,184
2013-07-01	Employer Contributions	$ 2,883,000	3728	$ 773
2013-07-01	Employee Contributions	$ 2,883,000	3728	$ 773
2013-04-11	Employer Contributions	$ 592,000	3728	$ 159
2013-04-11	Employee Contributions	$ 592,000	3728	$ 159
2012-09-12	Employer Contributions	$ 1,469,000	992	$ 1,481
2012-09-12	Employee Contributions	$ 1,469,000	992	$ 1,481
2012-07-15	Employer Contributions	$ 4,126,000	992	$ 4,159
2012-07-15	Employee Contributions	$ 4,126,000	992	$ 4,159
2012-04-15	Employer Contributions	$ 4,126,000	992	$ 4,159
2012-04-15	Employee Contributions	$ 4,126,000	992	$ 4,159
2012-03-20	Employer Contributions	$ 5,100,000	992	$ 5,141
2012-03-20	Employee Contributions	$ 5,100,000	992	$ 5,141
2012-01-13	Employer Contributions	$ 3,672,000	992	$ 3,702
2012-01-13	Employee Contributions	$ 3,672,000	992	$ 3,702
2010-09-08	Employer Contributions	$ 11,620,000	446	$ 26,054
2010-09-08	Employee Contributions	$ 11,620,000	446	$ 26,054
2010-07-12	Employer Contributions	$ 2,860,000	446	$ 6,413
2010-07-12	Employee Contributions	$ 2,860,000	446	$ 6,413
2010-06-02	Employer Contributions	$ 520,000	446	$ 1,166
2010-06-02	Employee Contributions	$ 520,000	446	$ 1,166

Potentially Related Companies

AMPHENOL ADVANCED SENSORS PUERTO RICO, LLC

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Company Name:	AMPHENOL CORPORATION & AFFILIATED COMPANIES
Employer identification number (EIN):	222785165
Stock Holdings:	ETF Holdings of AMPHENOL CORPORATION & AFFILIATED COMPANIES
NAIC Classification:	334410