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Magnetar Financial LLC

Position in AMG — Affiliated Managers Group, Inc.

CIK 1352851 EVANSTON, IL

Position in AMG

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$1,137,236
+$874,326 QoQ
Shares Held
4,110
+350.7% QoQ
Ownership
0.016%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2021
8 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in AMG Over Time

Shares Held

Position Value (USD)

Position in Asset Management

Financial Services · as of Mar 31, 2026

Magnetar Financial LLC holds $77,673,464 across 16 Asset Management names. AMG ranks #6 (1.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 AMG
Affiliated Managers Group, Inc.
This page
4,110 $1,137,236

All Filings in AMG

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8 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,137,236 4,110
2025-12-31 $262,910 912
2025-06-30 $284,922 1,448
2024-09-30 $244,296 1,374
2023-06-30 $1,455,881 9,713
2023-03-31 $1,782,243 12,514
2022-09-30 $1,184,155 10,587
2021-06-30 $297,316 1,928