As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Artisan Partners Asset Management Inc. The largest reported stake is Eric R. Colson's, at 10.2%. 5 filings are on record since January 5, 2026 (Schedule 13D/A, January 5, 2026).
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Key facts
- · Holder: Vanguard Capital Management · Percent: 5.05% · SCHEDULE 13G
- · Holder: Vanguard Portfolio Management · Percent: 5.91% · SCHEDULE 13G
- · Holder: The Vanguard Group · Percent: 0% · SCHEDULE 13G/A
- · Holder: Kayne Anderson Rudnick Investment Management, LLC · Percent: 8.1% · SCHEDULE 13G/A
- · Holder: Eric R. Colson · Percent: 10.2% · SCHEDULE 13D/A
Artisan Partners Asset Management Inc has 5 Schedule 13D or 13G filings on record since 2026-01-05. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 10.2% | 7,276,763 | SCHEDULE 13D/A, 2026-01-05 | 2025-12-31 | |
| Kayne Anderson Rudnick Investment Management, LLC | 8.1% | 5,716,957 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| Vanguard Portfolio Management | 5.91% | 4,171,352 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 |
| Vanguard Capital Management | 5.05% | 3,564,721 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on Artisan Partners Asset Management Inc and the records around it.
Artisan Partners Asset Management Inc elsewhere on the record
Companies that share a holder
- Kayne Anderson Rudnick Investment Management, LLC also filed stake reports on 53 other companies: Andersen Group Inc. (Aug 2026), Bright Horizons Family Solutions Inc (Aug 2026), Choice Hotels International Inc (Aug 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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Purpose of Transaction (Item 4)
Eric R. Colson
Each Reporting Person may from time to time sell shares of Class A common stock (including, for Mr. Colson and Mr. Daley, shares of Class A common stock received upon exchange of the corresponding Class B common units and Class B common stock) over which the Reporting Person has sole dispositive power. Shares subject to the Stockholders Agreement over which the Reporting Persons do not have dispositive power may also be sold from time to time by the owners of those shares. Each Reporting Person may purchase additional shares of the Company's common stock or receive additional shares from the Company from time to time. The Company may also issue shares to other employees of the Company over which the Stockholders Committee will have voting power pursuant to the Stockholders Agreement. Any shares issued by the Company to employees (including the Reporting Persons) will be subject to the Stockholders Agreement. Each of the Reporting Persons is an officer, and Mr. Colson and Mr. Gottlieb are also directors, of the Company. In those capacities, the Reporting Persons may participate from time to time in discussions and planning with respect to transactions, events or actions set forth in subsections (a) through (j) of Item 4 of Schedule 13D. The Reporting Persons reserve the right to formulate plans or make proposals, and take such action with respect thereto, including any or all of the items set forth in subsections (a) through (j) of Item 4 of Schedule 13D and any other …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-01-05; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-01-05 | Eric R. Colson | 10.2% | SCHEDULE 13D/A |
| 2026-02-13 | Kayne Anderson Rudnick Investment Management, LLC | 8.1% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-28 | Vanguard Portfolio Management | 5.91% | SCHEDULE 13G |
| 2026-04-29 | Vanguard Capital Management | 5.05% | SCHEDULE 13G |
Questions about who owns Artisan Partners Asset Management Inc
Who owns Artisan Partners Asset Management Inc?
On this page, 4 holders' latest ownership filings report 5% or more of Artisan Partners Asset Management Inc: Eric R. Colson (10.2%, Schedule 13D/A, filed 2026-01-05), Kayne Anderson Rudnick Investment Management, LLC (8.1%, Schedule 13G/A, filed 2026-02-13), Vanguard Portfolio Management (5.91%, Schedule 13G, filed 2026-04-28) and Vanguard Capital Management (5.05%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Artisan Partners Asset Management Inc?
By the share each holder's latest filing reports, the largest holders of Artisan Partners Asset Management Inc on this page are Eric R. Colson (10.2%), Kayne Anderson Rudnick Investment Management, LLC (8.1%) and Vanguard Portfolio Management (5.91%).
When did Eric R. Colson buy into Artisan Partners Asset Management Inc?
The filings give report dates, not purchase dates. The earliest filing from Eric R. Colson on this page is the Schedule 13D/A, filed 2026-01-05, reporting 10.2%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 5 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.