Kwei Eileen Lee 4

What Happened

• Eileen Kwei, Executive Vice President of Artisan Partners Asset Management Inc. (APAM), was granted equity on March 2, 2026 under the Artisan Partners Asset Management Inc. 2023 Omnibus Incentive Compensation Plan. The grant consisted of 13,783 shares of Class A common stock (priced at $0.00, i.e., no cash paid) and 2,275 Class B common units of Artisan Partners Holdings LP (together with an equal number of Class B common stock of the Company). The filing lists these transactions with code A (award/grant). The Class A shares are subject to transfer restrictions until they vest.

Key Details

• Transaction date: March 2, 2026; Transaction type: A (award/grant).
• Grants: 13,783 Class A common shares @ $0.00; 2,275 Class B common units @ $0.00 and 2,275 Class B common stock (derivative entry, N/A price).
• Shares owned after transaction: not disclosed in this Form 4.
• Footnotes: (1) Class A shares may not be transferred until vested. Class B common stock do not have economic rights. (2) Each Class B unit vested on grant and is exchangeable for one share of Class A common stock after the first anniversary of the grant (per an Exchange Agreement); upon exchange the corresponding Class B common stock is cancelled. Class B units have no expiration date.
• Filing timeliness: reported on March 2, 2026 (same day as the transactions), so the filing appears timely.

Context

• This was an equity award (compensation grant), not an open-market purchase or sale. Class B units vested upon grant but are exchangeable for Class A shares only after one year; Class A shares are subject to vesting/transfer restrictions. Such awards reflect compensation arrangements rather than immediate market purchases or sales.