MARTINGALE ASSET MANAGEMENT L P
Position in AMG — Affiliated Managers Group, Inc.
CIK 936944
BOSTON, MA
Position in AMG
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$1,262,028
-$337,636 QoQ
Shares Held
4,561
-17.8% QoQ
Ownership
0.017%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 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 Mar 31, 2026MARTINGALE ASSET MANAGEMENT L P holds $42,208,371 across 10 Asset Management names. AMG ranks #7 (3.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMP |
Ameriprise Financial Inc
|
45,914 | $20,404,181 | |
| 2 | SEIC |
Sei Investments Co
|
85,530 | $6,711,539 | |
| 3 | STT |
State Street Corp
|
36,464 | $4,614,883 | |
| 4 | NTRS |
Northern Trust Corp
|
29,822 | $4,162,256 | |
| 5 | GCMG |
GCM Grosvenor Inc.
|
205,797 | $2,016,810 | |
| 6 | APAM |
Artisan Partners Asset Management Inc.
|
41,239 | $1,500,687 | |
| 7 | AMG |
Affiliated Managers Group, Inc.
This page
|
4,561 | $1,262,028 | |
| 8 | PAX |
Patria Investments Ltd
|
75,771 | $954,714 |
All Filings in AMG
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21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,262,028 | 4,561 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $1,599,664 | 5,549 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $1,373,833 | 5,762 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $1,308,914 | 6,652 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $1,422,373 | 8,465 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $3,270,125 | 17,684 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $5,332,222 | 29,990 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $4,613,784 | 29,532 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $4,131,819 | 24,672 | Shares | Sole | 2024-05-14 | |
| 2023-06-30 | $3,140,195 | 20,950 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $3,019,446 | 21,201 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $4,229,130 | 26,694 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $2,923,535 | 26,138 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $740,176 | 6,348 | Shares | Sole | 2022-08-11 | |
| 2022-03-31 | $896,160 | 6,358 | Shares | Sole | 2022-05-12 | |
| 2021-12-31 | $301,546 | 1,833 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $235,096 | 1,556 | Shares | Sole | 2021-11-12 | |
| 2021-03-31 | $648,280 | 4,350 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $402,325 | 3,956 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $632,515 | 9,250 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $282,880 | 3,794 | Shares | Sole | 2020-08-10 | |
| No filing history on record for this holder in this stock. | ||||||