WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Position in AAMI — Acadian Asset Management Inc.
CIK 1644956
CHICAGO, IL
Position in AAMI
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$14,352,567
+$2,363,525 QoQ
Shares Held
263,737
+3.4% QoQ
Ownership
0.740%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2022
16 quarters on record
Voting authority
Sole 69.27962326105173.ToString("F0")%
Shared 0.ToString("F0")%
None 30.720376738948268.ToString("F0")%
Common Shares in AAMI Over Time
Shares Held
Position Value (USD)
Position in Asset Management
Financial Services · as of Mar 31, 2026WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $461,997,412 across 7 Asset Management names. AAMI ranks #4 (3.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CG |
Carlyle Group Inc.
|
6,301,109 | $304,910,664 | |
| 2 | STEP |
StepStone Group Inc.
|
1,914,477 | $91,358,842 | |
| 3 | TPG |
TPG Inc.
|
1,112,187 | $45,054,695 | |
| 4 | AAMI |
Acadian Asset Management Inc.
This page
|
263,737 | $14,352,567 | |
| 5 | BX |
Blackstone Inc.
|
46,877 | $5,390,386 | |
| 6 | APO |
Apollo Global Management, Inc.
|
6,275 | $699,160 | |
| 7 | STT |
State Street Corp
|
1,826 | $231,098 |
All Filings in AAMI
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $14,352,567 | 263,737 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $11,989,042 | 255,086 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $13,548,274 | 281,318 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $25,093,769 | 712,082 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $29,491,390 | 1,140,425 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $31,422,935 | 1,192,974 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $29,566,539 | 1,164,037 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $26,596,661 | 1,199,669 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $27,451,715 | 1,201,914 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $23,018,881 | 1,201,403 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $23,753,874 | 1,225,058 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $27,713,037 | 1,322,818 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $30,611,626 | 1,298,203 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $26,627,844 | 1,293,870 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $20,021,148 | 1,342,800 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $24,621,939 | 1,367,126 | Shares | Sole | 2022-08-10 | |
| No filing history on record for this holder in this stock. | ||||||