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SEI INVESTMENTS CO

Position in AMG — Affiliated Managers Group, Inc.

CIK 350894 OAKS, PA

Position in AMG

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$39,640,852
+$9,852,991 QoQ
Shares Held
117,142
+8.8% QoQ
Ownership
0.453%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#40
of 562 holders
Holding Since
Sep 2020
21 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AMG Over Time

Shares Held

Position Value (USD)

Position in Asset Management

Financial Services · as of Jun 30, 2026

SEI INVESTMENTS CO holds $796,799,997 across 48 Asset Management names. AMG ranks #7 (5.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 AMG
Affiliated Managers Group, Inc.
This page
117,142 $39,640,852

All Filings in AMG

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $39,640,852 117,142
2026-03-31 $29,787,861 107,654
2025-12-31 $29,490,177 102,297
2025-09-30 $23,336,097 97,874
2025-06-30 $11,938,428 60,672
2025-03-31 $8,177,346 48,666
2024-12-31 $8,787,212 47,519
2024-09-30 $11,661,723 65,589
2024-06-30 $7,050,971 45,132
2024-03-31 $8,069,540 48,185
2023-12-31 $5,181,137 34,217
2023-09-30 $5,285,025 40,548
2023-06-30 $6,446,468 43,008
2023-03-31 $6,026,643 42,316
2022-12-31 $4,997,989 31,547
2022-09-30 $3,481,107 31,123
2022-03-31 $418,057 2,966
2021-12-31 $1,281,038 7,787
2021-09-30 $1,855,233 12,279
2021-06-30 $2,945,873 19,103
2020-09-30 $227,568 3,328