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Affiliated Managers Group, Inc.

MGR
Exchange
NYSE
Industry
Investment Advice
SEC CIK
0001004434

No open-market purchases or sales by Affiliated Managers Group, Inc. insiders were filed in the last 90 days; 2 institutions reported holding it in 13F filings for Q2 2026, worth $12.8K in total; no superinvestor holds it.

Other share classesAMGMGRBMGRDMGRE

13F holders, Q2 2026

Institutional positions in Affiliated Managers Group, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
2
0 vs. Q1 2026
Shares held
647
+320 (+97.9%) vs. Q1 2026
Total value
$12.8K
+$6.36K (+99.1%) vs. Q1 2026
New holders
0
1 more added
Sold out
0
0 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MGR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 2 institutions
Q1 2021: 1 institutionQ2 2021: 2 institutionsQ3 2021: 1 institutionQ4 2021: 1 institutionQ1 2022: 1 institutionQ2 2022: 0 institutionsQ3 2022: 1 institutionQ4 2022: 1 institutionQ1 2023: 1 institutionQ2 2023: 3 institutionsQ3 2023: 2 institutionsQ4 2023: 1 institutionQ1 2024: 1 institutionQ2 2024: 2 institutionsQ3 2024: 2 institutionsQ4 2024: 1 institutionQ1 2025: 1 institutionQ2 2025: 2 institutionsQ3 2025: 2 institutionsQ4 2025: 2 institutionsQ1 2026: 2 institutionsQ2 2026: 2 institutions
Value heldQ2 2026: $12.8K
Q1 2021: $28.0KQ2 2021: $106.0KQ3 2021: $28.0KQ4 2021: $1.00KQ1 2022: $0Q2 2022: $0Q3 2022: $12.0MQ4 2022: $2.16KQ1 2023: $5.97KQ2 2023: $11.1MQ3 2023: $7.33KQ4 2023: $7.95KQ1 2024: $8.37KQ2 2024: $8.24KQ3 2024: $332.2KQ4 2024: $8.18KQ1 2025: $7.45KQ2 2025: $76.1KQ3 2025: $83.4KQ4 2025: $77.6KQ1 2026: $6.41KQ2 2026: $12.8K
Institutions holding MGR and their total value by quarter
QuarterHoldersValue
Q2 20262$12.8K
Q1 20262$6.41K
Q4 20252$77.6K
Q3 20252$83.4K
Q2 20252$76.1K
Q1 20251$7.45K
Q4 20241$8.18K
Q3 20242$332.2K
Q2 20242$8.24K
Q1 20241$8.37K
Q4 20231$7.95K
Q3 20232$7.33K
Q2 20233$11.1M
Q1 20231$5.97K
Q4 20221$2.16K
Q3 20221$12.0M
Q2 20220$0
Q1 20221$0
Q4 20211$1.00K
Q3 20211$28.0K
Q2 20212$106.0K
Q1 20211$28.0K

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Affiliated Managers Group, Inc.; share changes are against Q1 2026.

Institutions holding MGR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
First Command Advisory Services, Inc.471$9.29K0.00%+320+211.9%Added
The PNC Financial Services Group, Inc.176$3.47K0.00%00.0%Unchanged