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Equibles

MARTINGALE ASSET MANAGEMENT L P

Position in AMG — Affiliated Managers Group, Inc.

CIK 936944 BOSTON, MA
Back to AMG Full portfolio

Position in AMG

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$270,043
-$991,985 QoQ
Shares Held
798
-82.5% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#383
of 567 holders
Holding Since
Jun 2020
22 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

MARTINGALE ASSET MANAGEMENT L P holds $39,867,106 across 8 Asset Management names. AMG ranks #7 (0.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMP
Ameriprise Financial Inc
 47,039 $21,579,611
2 NTRS
Northern Trust Corp
 31,612 $5,495,430
3 SEIC
Sei Investments Co
 50,324 $4,413,918
4 STT
State Street Corp
 25,064 $4,250,854
5 GCMG
GCM Grosvenor Inc.
 209,398 $2,575,595
6 TIPT
Tiptree Inc.
 59,033 $1,057,871
7 AMG
Affiliated Managers Group, Inc.
This page 		798 $270,043
8 SAMG
Silvercrest Asset Management Group Inc.
 22,135 $223,784

All Filings in AMG

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $270,043 798
2026-03-31 $1,262,028 4,561
2025-12-31 $1,599,664 5,549
2025-09-30 $1,373,833 5,762
2025-06-30 $1,308,914 6,652
2025-03-31 $1,422,373 8,465
2024-12-31 $3,270,125 17,684
2024-09-30 $5,332,222 29,990
2024-06-30 $4,613,784 29,532
2024-03-31 $4,131,819 24,672
2023-06-30 $3,140,195 20,950
2023-03-31 $3,019,446 21,201
2022-12-31 $4,229,130 26,694
2022-09-30 $2,923,535 26,138
2022-06-30 $740,176 6,348
2022-03-31 $896,160 6,358
2021-12-31 $301,546 1,833
2021-09-30 $235,096 1,556
2021-03-31 $648,280 4,350
2020-12-31 $402,325 3,956
2020-09-30 $632,515 9,250
2020-06-30 $282,880 3,794