Firm profile

American Century Investment Management Inc.

KANSAS CITY, MOCRD 105778Registration Status: ApprovedEffective since December 14, 1971SEC # 801-8174Latest ADV March 31, 2026

American Century Investment Management Inc is an SEC registered investment adviser organized as a corporation with a primary office location in Kansas City, MO. Its latest Form ADV filing, dated March 31, 2026, reports $306.0B in regulatory assets under management, 220 employees, 8 offices, and 719 accounts.

Assets Under Management
$306.0B
Employees
220
Offices
8 offices
Total Clients
716

Associated firm names

2 names listed
  • AMERICAN CENTURY INVESTMENT MANAGEMENT INC
  • AMERICAN CENTURY INVESTMENTS

Leadership

4 roles identified
CEOVictor S. Zhang
CCOAmy D. Shelton
CFOPatrick T. Bannigan

Advisory services offered

3 types reported
Portfolio management for businesses
Portfolio management for investment companies
Portfolio management for pooled investment vehicles

Fee models offered

3 types reported
Asset based fees
Fixed fees
Performance-based fees

Offices & Contact

Primary office

KANSAS CITY, Missouri, United States

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Primary office regionOther reported regions

Shading shows states and countries with reported offices. Cities are listed below; shading does not indicate service coverage.

Missouri

KANSAS CITYPrimary office

California

LOS ANGELES · SANTA CLARA

Connecticut

NEW CANAAN

Hong Kong

CENTRAL

New York

NEW YORK

Oregon

PORTLAND

United Kingdom

LONDON

8 office records listed · 8 total offices reported. Counts can use different reporting dates. SEC filers may list only their largest 25 additional offices.

Contact and digital presence

ADV profile links

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$306.0Bas of March 31, 2026
Discretionary100.0%
$306.0B
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.

Client Coverage Demographics

Top client segmentPROPRIETARY, SMA PROGRAM CLIENTS represent 50.6% of total clients.
Top client categories% of clientsClients
1
PROPRIETARY, SMA PROGRAM CLIENTS
50.6%
362
2
Investment Cos.
25.3%
181
3
Pooled Investment Vehicles
13.0%
93
4
Pension Plans
6.7%
48
5
Insurance Cos.
1.8%
13
Categories with <5 clients
State or municipal government entities (including govt. pension plans)<5 clients

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$306.0B
Total Accounts719
10Y AUM Change+$145.9B (+91.1%)

Private Funds

Private funds reported by American Century Investment Management Inc.

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Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees220
Clients per Employee3:1
10Y Employee Change+49 (+28.7%)

Historical AUM and employee figures reflect available SEC Form ADV filings under this CRD. Filing gaps may reflect registration status changes, dormant periods, state registration periods, firm restructuring, or other reporting changes. Rialytix does not interpolate missing periods.


Ownership

Reported direct and indirect ownership ranges

Each range applies to a separate reported relationship and should not be added together.

Reported ownership ranges

Highlighted bands show the percentage range reported in Form ADV.

0%25%50%75%100%
AMERICAN CENTURY COMPANIES, INC.Direct owner · Schedule AInterest in AMERICAN CENTURY INVESTMENT MANAGEMENT INC
75%+
NOMURA AM HOLDINGS USA, LLCIndirect owner · Schedule BInterest in AMERICAN CENTURY COMPANIES, INC.
75%+
NOMURA HOLDING AMERICA INC.Indirect owner · Schedule BInterest in NOMURA AM HOLDINGS USA, LLC
75%+
NOMURA HOLDINGS, INC.Indirect owner · Schedule BInterest in NOMURA HOLDING AMERICA INC.
75%+
STOWERS RESOURCE MANAGEMENT, INC.Indirect owner · Schedule BInterest in AMERICAN CENTURY COMPANIES, INC.
25% to < 50%
STOWERS INSTITUE FOR MEDICAL RESEARCHIndirect owner · Schedule BInterest in AMERICAN CENTURY COMPANIES, INC.
25% to < 50%
NOMURA AM HOLDINGS USA, LLCIndirect owner · Schedule BInterest in AMERICAN CENTURY COMPANIES, INC.
25% to < 50%

Bars represent the reported range at that individual ownership step, not an estimated percentage of the advisory firm. Indirect relationships may refer to intermediate entities rather than directly to American Century Investment Management Inc..

Reported ownership and control details

Form ADV · Filing date 2026-03-31 · Schedules A and B

12 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1AMERICAN CENTURY COMPANIES, INC.SHAREHOLDERDomestic entityAMERICAN CENTURY INVESTMENT MANAGEMENT INC75% or moreCode EYesSHAREHOLDER12/1984Schedule APDF page 57
2AMY DIANE SHELTONCHIEF COMPLIANCE OFFICERIndividualAMERICAN CENTURY INVESTMENT MANAGEMENT INCLess than 5%Code NAYesCHIEF COMPLIANCE OFFICER02/2014Schedule APDF page 58
3PATRICK THOMAS BANNIGANCHIEF FINANCIAL OFFICER, CHIEF ACCOUNTING OFFICER, VICE PRESIDENT, DIRECTOR AND TREASURERIndividualAMERICAN CENTURY INVESTMENT MANAGEMENT INCLess than 5%Code NAYesCHIEF FINANCIAL OFFICER, CHIEF ACCOUNTING OFFICER, VICE PRESIDENT, DIRECTOR AND TREASURER04/2013Schedule APDF page 58
4VICTOR SHENG ZHANGPRESIDENT, CHIEF EXECUTIVE OFFICER, CHIEF INVESTMENT OFFICER & DIRECTORIndividualAMERICAN CENTURY INVESTMENT MANAGEMENT INCLess than 5%Code NAYesPRESIDENT, CHIEF EXECUTIVE OFFICER, CHIEF INVESTMENT OFFICER & DIRECTOR03/2014Schedule APDF page 58
5CLEO CHENGPEI CHANGSENIOR VICE PRESIDENT AND DIRECTORIndividualAMERICAN CENTURY INVESTMENT MANAGEMENT INCLess than 5%Code NAYesSENIOR VICE PRESIDENT AND DIRECTOR03/2021Schedule APDF page 58
6John Dongjin PakSENIOR VICE PRESIDENT AND GENERAL COUNSELIndividualAMERICAN CENTURY INVESTMENT MANAGEMENT INCLess than 5%Code NAYesSENIOR VICE PRESIDENT AND GENERAL COUNSEL08/2021Schedule APDF page 58
7STOWERS RESOURCE MANAGEMENT, INC.SHAREHOLDER OF CLASS A SHARESDomestic entityAMERICAN CENTURY COMPANIES, INC.25% to less than 50%Code CYesSHAREHOLDER OF CLASS A SHARES08/2008Schedule BPDF page 58
8STOWERS INSTITUE FOR MEDICAL RESEARCHSHAREHOLDER OF CLASS B SHARESDomestic entityAMERICAN CENTURY COMPANIES, INC.25% to less than 50%Code CYesSHAREHOLDER OF CLASS B SHARES11/2011Schedule BPDF page 58
9NOMURA AM HOLDINGS USA, LLCSHAREHOLDER OF CLASS A SHARESDomestic entityAMERICAN CENTURY COMPANIES, INC.25% to less than 50%Code CNoSHAREHOLDER OF CLASS A SHARES05/2016Schedule BPDF page 58
10NOMURA AM HOLDINGS USA, LLCSHAREHOLDER OF SPECIAL VOTING PREFERRED CLASS SHARESDomestic entityAMERICAN CENTURY COMPANIES, INC.75% or moreCode ENoSHAREHOLDER OF SPECIAL VOTING PREFERRED CLASS SHARES05/2016Schedule BPDF page 58
11NOMURA HOLDING AMERICA INC.MEMBERDomestic entityNOMURA AM HOLDINGS USA, LLC75% or moreCode ENoMEMBER12/2015Schedule BPDF page 58
12NOMURA HOLDINGS, INC.SHAREHOLDERForeign entityNOMURA HOLDING AMERICA INC.75% or moreCode ENoSHAREHOLDER04/1989Schedule BPDF page 58

Less than 5% may include zero. Code F identifies a role without specifying a percentage. Reported interests may overlap and may not include every owner. Total indirect ownership is not calculated.

Compliance & Disclosures

Filing dated 3/31/2026 9:39:57 AM

Responses were selected by the RIA in its filing. Questions are shortened for readability; “you” refers to the reporting firm, and some questions also cover advisory affiliates.

RIA or supervised-person involvementThe RIA reported that none of the events below involve the firm or its supervised persons.RIA responseNo
AFelonies2 No

In the past ten years, have you or any advisory affiliate:

  • A1Been convicted of or pleaded guilty or no contest to a felony?No
  • A2Been charged with a felony?No
BMisdemeanors2 No

In the past ten years, have you or any advisory affiliate:

  • B1Been convicted of or pleaded guilty or no contest to a misdemeanor involving investments, an investment-related business, fraud, false statements or omissions, wrongful taking of property, bribery, perjury, forgery, counterfeiting, or extortion?No
  • B2Been charged with a misdemeanor of the kind listed above?No
CSEC or CFTC actions5 No

Has the SEC or CFTC ever:

  • C1Found you or an advisory affiliate made a false statement or omission?No
  • C2Found you or an advisory affiliate violated SEC or CFTC regulations or statutes?No
  • C3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • C4Entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • C5Imposed a civil money penalty on you or an advisory affiliate, or ordered you or an advisory affiliate to cease and desist from any activity?No
DOther regulatory actions5 No

Has any other federal regulatory agency, state regulatory agency, or foreign financial regulatory authority ever:

  • D1Found you or an advisory affiliate made a false statement or omission, or was dishonest, unfair, or unethical?No
  • D2Found you or an advisory affiliate violated investment-related regulations or statutes?No
  • D3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • D4In the past ten years, entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • D5Denied, suspended, or revoked your or an advisory affiliate’s registration or license, or otherwise prevented association with an investment-related business or restricted activities?No
ESelf-regulatory organization actions4 No

Has a self-regulatory organization or commodities exchange ever:

  • E1Found you or an advisory affiliate made a false statement or omission?No
  • E2Found you or an advisory affiliate violated its rules, other than a violation designated as a minor rule violation under an SEC-approved plan?No
  • E3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • E4Disciplined you or an advisory affiliate by expulsion, suspension, barring association with other members, or otherwise restricting activities?No
FProfessional authorizations1 No
  • FHas an authorization to act as an attorney, accountant, or federal contractor granted to you or an advisory affiliate ever been revoked or suspended?No
GPending regulatory proceedings1 No
  • GAre you or any advisory affiliate now the subject of a regulatory proceeding that could result in a “Yes” answer to any part of C, D, or E?No
HCivil judicial actions and proceedings4 No

(1) Court actions

Has a domestic or foreign court:

  • H(1)(a)In the past ten years, enjoined you or an advisory affiliate in connection with investment-related activity?No
  • H(1)(b)Found that you or an advisory affiliate violated investment-related statutes or regulations?No
  • H(1)(c)Dismissed, pursuant to a settlement agreement, an investment-related civil action brought against you or an advisory affiliate by a state or foreign financial regulatory authority?No

(2) Pending civil proceedings

  • H(2)Are you or any advisory affiliate now the subject of a civil proceeding that could result in a “Yes” answer to any part of H(1)?No

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.